From f0ff080ffe4892a1375b7578b03e285d11937acf Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:08:28 -0700
Subject: [PATCH 01/28] feat: integrate excalidraw-mcp as first-class
 diagramming feature

Wire up MCPAppsMiddleware on the LangGraph agent so Excalidraw widget
HTML is properly sent to the frontend (fixes blank canvas). Add
progressive iframe streaming via postMessage to preserve JS state
during updates, and a 75% focused modal for expanding widgets.
Include an Excalidraw diagram skill for the agent with camera reveal
patterns, color grammar, and element reference snippets.

Closes #11
---
 .../agent/skills/excalidraw-diagram-skill.txt | 211 ++++++++++++++++++
 apps/app/src/app/api/copilotkit/route.ts      |  21 +-
 .../generative-ui/widget-renderer.tsx         | 192 +++++++++++-----
 3 files changed, 358 insertions(+), 66 deletions(-)
 create mode 100644 apps/agent/skills/excalidraw-diagram-skill.txt

diff --git a/apps/agent/skills/excalidraw-diagram-skill.txt b/apps/agent/skills/excalidraw-diagram-skill.txt
new file mode 100644
index 0000000..eb52786
--- /dev/null
+++ b/apps/agent/skills/excalidraw-diagram-skill.txt
@@ -0,0 +1,211 @@
+# Excalidraw Diagram Skill
+
+Create beautiful, professional, animated Excalidraw diagrams with progressive camera reveals, color-coded zones, and polished visual design. Use this skill whenever a user asks to diagram, visualize, map, chart, illustrate, or draw anything — including architecture diagrams, flowcharts, sequence diagrams, concept explainers, system maps, process flows, and technical overviews. Also trigger for requests like "show me how X works", "draw a diagram of", "create a visual for", "make an Excalidraw of", or any time a visual explanation would be clearer than text alone.
+
+---
+
+## Step 1 — Always call read_me first
+
+Before emitting ANY elements, call `Excalidraw:read_me`. Do not skip this step, even for simple diagrams. It provides the color palette, camera sizes, font rules, and element syntax required to produce clean output.
+
+```
+Excalidraw:read_me()
+```
+
+Then proceed directly to `Excalidraw:create_view` with your elements array — no narration about the read_me call.
+
+---
+
+## Step 2 — Plan the diagram before writing elements
+
+Before writing elements, mentally sketch:
+
+1. **What are the layers / zones?** (e.g. Frontend / Backend / Database, or Input / Process / Output)
+2. **What color grammar makes sense?** Assign one color per layer and keep it consistent throughout
+3. **How many camera positions do I need?** Plan 3–6 camera stops minimum for a reveal effect
+4. **What's the reading order?** Left-to-right or top-to-bottom; pick one and stick to it
+
+---
+
+## Step 3 — Core design rules (MUST follow)
+
+### Camera rules
+- **Always start with `cameraUpdate` as the first element**
+- Camera sizes MUST be exact 4:3 ratios: `400x300`, `600x450`, `800x600`, `1200x900`, `1600x1200`
+- Use **multiple cameraUpdates** throughout the array — pan to each section as you draw it
+- Leave padding: if content is 500px wide, use 800x600 camera
+- Final element should be a wide cameraUpdate showing the full diagram
+
+### Color grammar (use consistently)
+
+| Zone / Role         | Fill          | Stroke    |
+|---------------------|---------------|-----------|
+| UI / Frontend       | `#dbe4ff`     | `#4a9eed` |
+| Logic / Agent       | `#e5dbff`     | `#8b5cf6` |
+| Data / Storage      | `#d3f9d8`     | `#22c55e` |
+| External / API      | `#ffd8a8`     | `#f59e0b` |
+| Error / Alert       | `#ffc9c9`     | `#ef4444` |
+| Notes / Decisions   | `#fff3bf`     | `#f59e0b` |
+
+Zone background rectangles: use `opacity: 40`, `fillStyle: "solid"`
+
+Node shapes: use pastel fills (`#a5d8ff`, `#b2f2bb`, `#d0bfff`, `#ffd8a8`, `#c3fae8`, `#eebefa`)
+
+### Typography rules
+- Title: `fontSize: 26–28`, `strokeColor: "#1e1e1e"`
+- Subtitle / annotation: `fontSize: 16`, `strokeColor: "#757575"`
+- Shape labels: `fontSize: 16–18` via `label` property on the shape
+- NEVER use fontSize below 14
+- NEVER use light gray on white backgrounds (minimum text color: `#757575`)
+
+### Shape rules
+- Use `label: { "text": "...", "fontSize": 16 }` directly on shapes — no separate text elements
+- Minimum shape size: `120x60` for labeled boxes
+- Add `roundness: { type: 3 }` for rounded corners (preferred for nodes)
+- Leave 20–30px gaps between elements
+
+### Drawing order (z-order, critical)
+Emit in this sequence per section:
+1. Zone background rectangle (drawn first = sits behind)
+2. Zone label text
+3. Node shapes (with labels)
+4. Arrows between nodes
+5. Then next section
+
+NEVER dump all rectangles, then all text, then all arrows.
+
+### Arrow rules
+- Always include `endArrowhead: "arrow"` for directional flow
+- Use `strokeStyle: "dashed"` for responses, return values, optional paths
+- Keep arrow labels short (under 20 chars) or omit — long labels overflow
+- Use `startBinding` / `endBinding` with `fixedPoint` to attach to shapes
+
+---
+
+## Step 4 — Diagram type patterns
+
+### Architecture / System Diagram
+Zones as swim lanes (left-to-right or top-to-bottom). Each zone = one architectural layer. Arrows show data/request flow between layers. End with a full-width cameraUpdate.
+
+**Camera pattern:** Title zoom (M) → pan right zone by zone (S/M) → final overview (XL)
+
+### Sequence / Flow Diagram
+Actors as header boxes with dashed vertical lifelines. Horizontal arrows show messages. Pan camera downward as messages progress.
+
+**Camera pattern:** Title (M) → pan right per actor drawing header + lifeline → zoom out (L) → pan down per message group → final overview (XL)
+
+### Concept Explainer
+Start zoomed on the title, then reveal parts of the concept one at a time. Use annotations (`#fff3bf` boxes) as callouts. Simple left-to-right flow.
+
+**Camera pattern:** Title zoom (S) → zoom out (M) → pan section by section → final (L)
+
+### Process / Flowchart
+Diamonds for decisions, rectangles for steps. Top-to-bottom flow. Color-code by stage (e.g. initiation=blue, processing=purple, output=green).
+
+**Camera pattern:** Top zoom → pan down per stage group → final overview
+
+---
+
+## Step 5 — The camera reveal technique (what makes diagrams feel alive)
+
+The secret to great Excalidraw diagrams is **drawing section by section with camera moves**:
+
+```json
+// 1. Start with title, zoomed in
+{"type":"cameraUpdate","width":600,"height":450,"x":100,"y":0},
+{"type":"text","id":"t1","x":200,"y":20,"text":"My Diagram","fontSize":28},
+
+// 2. Pan to first zone and draw it
+{"type":"cameraUpdate","width":400,"height":300,"x":20,"y":60},
+{"type":"rectangle","id":"zone1", ...zone background...},
+{"type":"rectangle","id":"node1", ...node with label...},
+
+// 3. Pan to second zone
+{"type":"cameraUpdate","width":400,"height":300,"x":280,"y":60},
+{"type":"rectangle","id":"zone2", ...},
+{"type":"rectangle","id":"node2", ...},
+
+// 4. Draw connecting arrows (camera stays or pans to show both ends)
+{"type":"cameraUpdate","width":800,"height":600,"x":0,"y":40},
+{"type":"arrow","id":"a1", ...arrow from node1 to node2...},
+
+// 5. Final wide overview
+{"type":"cameraUpdate","width":1200,"height":900,"x":-20,"y":-10}
+```
+
+This creates the "drawing itself" animation effect users love.
+
+---
+
+## Step 6 — Common mistakes to avoid
+
+- **No cameraUpdate first** → diagram appears un-framed, elements clip
+- **Wrong aspect ratio** → `700x500` causes distortion; use `800x600`
+- **All elements at once, no panning** → loses the reveal animation
+- **Overlapping elements** → check y-coordinates leave 60–80px between rows
+- **Long arrow labels** → overflow the arrow; keep under 20 chars or use a note box instead
+- **Emoji in text** → don't render in Excalidraw's font
+- **Light text on white** → `#b0b0b0` on white is invisible; minimum `#757575`
+- **Zone label covered by nodes** → put zone label text at top-left of zone (y + 8px from zone top), nodes start 40px below
+- **Title not centered** → estimate `text.length x fontSize x 0.5` for width, then set `x = diagramCenterX - estimatedWidth/2`
+
+---
+
+## Step 7 — Quality checklist before emitting
+
+- [ ] `Excalidraw:read_me` called
+- [ ] First element is `cameraUpdate`
+- [ ] All camera sizes are valid 4:3 ratios
+- [ ] Minimum 3 camera positions used (more = better animation)
+- [ ] Color grammar is consistent across zones
+- [ ] All shape labels use `label` property, not separate text elements
+- [ ] No font sizes below 14
+- [ ] Zone backgrounds are drawn BEFORE the nodes inside them
+- [ ] Arrows drawn AFTER both source and target shapes
+- [ ] Final element is a wide cameraUpdate revealing the full diagram
+- [ ] No emoji in any text strings
+
+---
+
+## Reference: Element snippets
+
+**Zone background:**
+```json
+{"type":"rectangle","id":"zone_bg","x":20,"y":80,"width":220,"height":380,"backgroundColor":"#dbe4ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":1,"opacity":40}
+```
+
+**Zone label:**
+```json
+{"type":"text","id":"zone_lbl","x":40,"y":88,"text":"FRONTEND","fontSize":14,"strokeColor":"#2563eb"}
+```
+
+**Node:**
+```json
+{"type":"rectangle","id":"n1","x":60,"y":130,"width":150,"height":55,"backgroundColor":"#a5d8ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":2,"label":{"text":"API Gateway","fontSize":16}}
+```
+
+**Arrow (solid, directed):**
+```json
+{"type":"arrow","id":"a1","x":210,"y":157,"width":100,"height":0,"points":[[0,0],[100,0]],"strokeColor":"#1e1e1e","strokeWidth":2,"endArrowhead":"arrow","startBinding":{"elementId":"n1","fixedPoint":[1,0.5]},"endBinding":{"elementId":"n2","fixedPoint":[0,0.5]}}
+```
+
+**Arrow (dashed, response):**
+```json
+{"type":"arrow","id":"a2","x":310,"y":157,"width":-100,"height":0,"points":[[0,0],[-100,0]],"strokeColor":"#757575","strokeWidth":2,"strokeStyle":"dashed","endArrowhead":"arrow"}
+```
+
+**Annotation note:**
+```json
+{"type":"rectangle","id":"note1","x":80,"y":200,"width":200,"height":36,"backgroundColor":"#fff3bf","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#f59e0b","strokeWidth":1,"opacity":80,"label":{"text":"Caches for 5 min","fontSize":14}}
+```
+
+**Title text:**
+```json
+{"type":"text","id":"title","x":150,"y":15,"text":"System Architecture","fontSize":28,"strokeColor":"#1e1e1e"}
+```
+
+**Stick figure (user icon):**
+```json
+{"type":"ellipse","id":"fig_head","x":58,"y":110,"width":20,"height":20,"backgroundColor":"#a5d8ff","fillStyle":"solid","strokeColor":"#4a9eed","strokeWidth":2},
+{"type":"rectangle","id":"fig_body","x":57,"y":132,"width":22,"height":26,"backgroundColor":"#a5d8ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":2}
+```
diff --git a/apps/app/src/app/api/copilotkit/route.ts b/apps/app/src/app/api/copilotkit/route.ts
index 9c73d9b..832d831 100644
--- a/apps/app/src/app/api/copilotkit/route.ts
+++ b/apps/app/src/app/api/copilotkit/route.ts
@@ -4,6 +4,7 @@ import {
   copilotRuntimeNextJSAppRouterEndpoint,
 } from "@copilotkit/runtime";
 import { LangGraphAgent } from "@copilotkit/runtime/langgraph";
+import { MCPAppsMiddleware } from "@ag-ui/mcp-apps-middleware";
 import { NextRequest } from "next/server";
 
 // 1. Define the agent connection to LangGraph
@@ -13,21 +14,25 @@ const defaultAgent = new LangGraphAgent({
   langsmithApiKey: process.env.LANGSMITH_API_KEY || "",
 });
 
+// 2. Wire up MCP apps middleware so widget HTML is sent to the frontend
+defaultAgent.use(
+  new MCPAppsMiddleware({
+    mcpServers: [{
+      type: "http",
+      url: process.env.MCP_SERVER_URL || "https://mcp.excalidraw.com",
+      serverId: "example_mcp_app",
+    }],
+  })
+);
+
 // 3. Define the route and CopilotRuntime for the agent
 export const POST = async (req: NextRequest) => {
   const { handleRequest } = copilotRuntimeNextJSAppRouterEndpoint({
     endpoint: "/api/copilotkit",
     serviceAdapter: new ExperimentalEmptyAdapter(),
     runtime: new CopilotRuntime({
-      agents: { default: defaultAgent, },
+      agents: { default: defaultAgent },
       a2ui: { injectA2UITool: true },
-      mcpApps: {
-        servers: [{
-          type: "http",
-          url: process.env.MCP_SERVER_URL || "https://mcp.excalidraw.com",
-          serverId: "example_mcp_app",
-        }],
-      },
     }),
   });
 
diff --git a/apps/app/src/components/generative-ui/widget-renderer.tsx b/apps/app/src/components/generative-ui/widget-renderer.tsx
index f978385..0cc367f 100644
--- a/apps/app/src/components/generative-ui/widget-renderer.tsx
+++ b/apps/app/src/components/generative-ui/widget-renderer.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect, useRef, useState, useCallback } from "react";
+import { useEffect, useLayoutEffect, useRef, useState, useCallback } from "react";
 import { z } from "zod";
 
 // ─── Zod Schema (CopilotKit parameter contract) ─────────────────────
@@ -358,6 +358,17 @@ window.addEventListener('load', reportHeight);
 // Periodic reports during initial load
 var _resizeInterval = setInterval(reportHeight, 200);
 setTimeout(function() { clearInterval(_resizeInterval); }, 15000);
+
+// Patch: receive incremental HTML updates without full reload
+window.addEventListener('message', function(e) {
+  if (e.data && e.data.type === 'update-content' && typeof e.data.html === 'string') {
+    var content = document.getElementById('content');
+    if (content) {
+      content.innerHTML = e.data.html;
+      reportHeight();
+    }
+  }
+});
 `;
 
 // ─── Document Assembly ───────────────────────────────────────────────
@@ -425,8 +436,10 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
   const iframeRef = useRef<HTMLIFrameElement>(null);
   const [height, setHeight] = useState(0);
   const [loaded, setLoaded] = useState(false);
+  const [isFullscreen, setIsFullscreen] = useState(false);
   // Track what html has been committed to the iframe to avoid redundant reloads
   const committedHtmlRef = useRef("");
+  const isFirstRenderRef = useRef(true);
 
   const handleMessage = useCallback((e: MessageEvent) => {
     // Only handle messages from our own iframe
@@ -445,19 +458,37 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
     return () => window.removeEventListener("message", handleMessage);
   }, [handleMessage]);
 
-  // Write to iframe imperatively — bypasses React reconciliation so the
-  // iframe only reloads when the html *content* truly changes, preserving
-  // internal JS state (Three.js scenes, step counters, etc.) across
-  // CopilotKit re-renders.
-  useEffect(() => {
+  // Write to iframe imperatively — first render sets srcdoc (executes scripts),
+  // subsequent streaming updates patch #content.innerHTML via postMessage
+  // to preserve JS state (Three.js scenes, step counters, etc.).
+  useLayoutEffect(() => {
     if (!html || !iframeRef.current) return;
     if (html === committedHtmlRef.current) return;
     committedHtmlRef.current = html;
-    iframeRef.current.srcdoc = assembleDocument(html);
-    setLoaded(false);
-    setHeight(0);
+
+    if (isFirstRenderRef.current) {
+      isFirstRenderRef.current = false;
+      iframeRef.current.srcdoc = assembleDocument(html);
+      setLoaded(false);
+      setHeight(0);
+    } else {
+      iframeRef.current.contentWindow?.postMessage(
+        { type: "update-content", html },
+        "*"
+      );
+    }
   }, [html]);
 
+  // Escape key exits fullscreen
+  useEffect(() => {
+    if (!isFullscreen) return;
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape") setIsFullscreen(false);
+    };
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
+  }, [isFullscreen]);
+
   // Fallback: if iframe has html but hasn't reported ready after 4s, force-show
   useEffect(() => {
     if (!html || (loaded && height > 0)) return;
@@ -474,65 +505,110 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
   const loadingPhrase = useLoadingPhrase(showLoading);
 
   return (
-    <div className="w-full my-3">
-      {/* Loading indicator: visible until iframe is fully ready */}
-      {showLoading && (
+    <>
+      {/* Fullscreen backdrop */}
+      {isFullscreen && (
         <div
-          className="overflow-hidden rounded-xl"
           style={{
-            border: "1px solid var(--color-border-glass)",
-            background: "var(--surface-primary)",
+            position: "fixed",
+            inset: 0,
+            zIndex: 9998,
+            background: "rgba(0, 0, 0, 0.5)",
           }}
-        >
-          {/* Animated gradient border top */}
+          onClick={() => setIsFullscreen(false)}
+        />
+      )}
+      <div
+        className={isFullscreen ? undefined : "w-full my-3"}
+        style={isFullscreen ? {
+          position: "fixed",
+          top: "10%",
+          left: "12.5%",
+          width: "75%",
+          height: "80%",
+          zIndex: 9999,
+          background: "var(--background, #fff)",
+          borderRadius: 16,
+          boxShadow: "0 25px 50px -12px rgba(0, 0, 0, 0.25)",
+          display: "flex",
+          flexDirection: "column",
+          overflow: "hidden",
+        } : undefined}
+      >
+        {/* Toolbar */}
+        {html && (
+          <div style={{
+            display: "flex",
+            justifyContent: "flex-end",
+            alignItems: "center",
+            padding: isFullscreen ? "8px 16px" : "0 0 4px 0",
+            ...(isFullscreen ? { borderBottom: "1px solid var(--border-secondary, #e5e7eb)" } : {}),
+          }}>
+            <button
+              onClick={() => setIsFullscreen(v => !v)}
+              style={{ background: "transparent", border: "none", cursor: "pointer", padding: "4px 8px", color: "var(--text-secondary, #6b7280)", fontSize: 13, fontFamily: "inherit" }}
+            >
+              {isFullscreen ? "✕ Close" : "⤢ Expand"}
+            </button>
+          </div>
+        )}
+        {/* Loading indicator: visible until iframe is fully ready */}
+        {showLoading && !isFullscreen && (
           <div
+            className="overflow-hidden rounded-xl"
             style={{
-              height: 2,
-              background: "linear-gradient(90deg, var(--color-lilac), var(--color-mint), var(--color-lilac))",
-              backgroundSize: "200% 100%",
-              animation: "shimmer 1.5s ease-in-out infinite",
+              border: "1px solid var(--color-border-glass)",
+              background: "var(--surface-primary)",
             }}
-          />
-          <div className="flex items-center gap-3 px-4 py-3">
-            {/* Spinning icon */}
+          >
             <div
               style={{
-                width: 18,
-                height: 18,
-                borderRadius: "50%",
-                border: "2px solid var(--color-border-light)",
-                borderTopColor: "var(--color-lilac-dark)",
-                animation: "spin 0.8s linear infinite",
-                flexShrink: 0,
+                height: 2,
+                background: "linear-gradient(90deg, var(--color-lilac), var(--color-mint), var(--color-lilac))",
+                backgroundSize: "200% 100%",
+                animation: "shimmer 1.5s ease-in-out infinite",
               }}
             />
-            <span
-              className="text-[13px] font-medium"
-              style={{ color: "var(--text-secondary)" }}
-            >
-              {loadingPhrase}...
-            </span>
+            <div className="flex items-center gap-3 px-4 py-3">
+              <div
+                style={{
+                  width: 18,
+                  height: 18,
+                  borderRadius: "50%",
+                  border: "2px solid var(--color-border-light)",
+                  borderTopColor: "var(--color-lilac-dark)",
+                  animation: "spin 0.8s linear infinite",
+                  flexShrink: 0,
+                }}
+              />
+              <span
+                className="text-[13px] font-medium"
+                style={{ color: "var(--text-secondary)" }}
+              >
+                {loadingPhrase}...
+              </span>
+            </div>
           </div>
-        </div>
-      )}
-      {/* Iframe: always mounted so ref is stable; srcdoc set imperatively.
-          No srcDoc React prop — prevents React from reloading the iframe
-          on parent re-renders. */}
-      <iframe
-        ref={iframeRef}
-        sandbox="allow-scripts allow-same-origin"
-        className="w-full border-0"
-        onLoad={() => setLoaded(true)}
-        style={{
-          height: ready ? height : 0,
-          overflow: "hidden",
-          background: "transparent",
-          opacity: ready ? 1 : 0,
-          transition: "opacity 300ms ease-in",
-          display: html ? undefined : "none",
-        }}
-        title={title}
-      />
-    </div>
+        )}
+        {/* Single iframe — always mounted so ref is stable */}
+        <iframe
+          ref={iframeRef}
+          sandbox="allow-scripts allow-same-origin"
+          className="w-full border-0"
+          onLoad={() => setLoaded(true)}
+          style={{
+            height: isFullscreen ? undefined : (ready ? height : 0),
+            flex: isFullscreen ? 1 : undefined,
+            overflow: "hidden",
+            background: "transparent",
+            opacity: ready ? 1 : 0,
+            transition: "opacity 300ms ease-in",
+            display: html ? undefined : "none",
+          }}
+          title={title}
+        />
+      </div>
+    </>
+
   );
 }

From 27e91f73092e283cd7d61f03aa3f24c8b33335fa Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:12:35 -0700
Subject: [PATCH 02/28] fix: give excalidraw skill its own section in agent
 system prompt

The excalidraw skill targets MCP tools (read_me, create_view) not the
widgetRenderer component, so it needs its own top-level section in the
system prompt rather than being nested under widgetRenderer instructions.
---
 apps/agent/main.py            | 20 ++++++++++++++++----
 apps/agent/skills/__init__.py | 11 +++++++++--
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/apps/agent/main.py b/apps/agent/main.py
index 35aadda..e7bf0ef 100644
--- a/apps/agent/main.py
+++ b/apps/agent/main.py
@@ -10,10 +10,11 @@
 from src.query import query_data
 from src.todos import AgentState, todo_tools
 from src.form import generate_form
-from skills import load_all_skills
+from skills import load_all_skills, load_skill
 
-# Load all visualization skills
-_skills_text = load_all_skills()
+# Load visualization skills (excalidraw loaded separately — it targets MCP tools, not widgetRenderer)
+_widget_skills_text = load_all_skills(exclude=["excalidraw-diagram-skill"])
+_excalidraw_skill_text = load_skill("excalidraw-diagram-skill")
 
 agent = create_agent(
     model=ChatOpenAI(model="gpt-5.4-2026-03-05"),
@@ -46,7 +47,18 @@
 
         Follow the skills below for how to produce high-quality visuals:
 
-        {_skills_text}
+        {_widget_skills_text}
+
+        ## Excalidraw Diagramming Skills
+
+        You also have access to Excalidraw MCP tools (`Excalidraw:read_me` and
+        `Excalidraw:create_view`) for creating animated, interactive diagrams.
+
+        When a user asks you to draw a diagram, flowchart, architecture map, or any
+        visual that would benefit from the Excalidraw canvas — use the Excalidraw MCP
+        tools instead of `widgetRenderer`. Follow the skill below exactly:
+
+        {_excalidraw_skill_text}
     """,
 )
 
diff --git a/apps/agent/skills/__init__.py b/apps/agent/skills/__init__.py
index a871edf..b4a5a88 100644
--- a/apps/agent/skills/__init__.py
+++ b/apps/agent/skills/__init__.py
@@ -17,10 +17,17 @@ def load_skill(name: str) -> str:
     return path.read_text()
 
 
-def load_all_skills() -> str:
-    """Load and concatenate all .txt skill files in this directory."""
+def load_all_skills(exclude: list[str] | None = None) -> str:
+    """Load and concatenate all .txt skill files in this directory.
+
+    Args:
+        exclude: Optional list of skill names (without extension) to skip.
+    """
+    skip = set(exclude or [])
     parts: list[str] = []
     for path in sorted(_SKILLS_DIR.glob("*.txt")):
+        if path.stem in skip:
+            continue
         parts.append(f"\n\n{'='*60}\n# SKILL: {path.stem}\n{'='*60}\n\n")
         parts.append(path.read_text())
     return "".join(parts)

From e20a40983b0fd1173595915c78feba5b33f84df2 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:15:15 -0700
Subject: [PATCH 03/28] fix: center widget content in iframe

---
 apps/app/src/components/generative-ui/widget-renderer.tsx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/apps/app/src/components/generative-ui/widget-renderer.tsx b/apps/app/src/components/generative-ui/widget-renderer.tsx
index 0cc367f..5426af1 100644
--- a/apps/app/src/components/generative-ui/widget-renderer.tsx
+++ b/apps/app/src/components/generative-ui/widget-renderer.tsx
@@ -228,6 +228,12 @@ body {
   -webkit-font-smoothing: antialiased;
 }
 
+#content {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
 button {
   font-family: inherit;
   font-size: 14px;

From 7fd3913a30882e38bf8d17cc89170fe81711268a Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:20:20 -0700
Subject: [PATCH 04/28] fix: resolve hydration mismatch and cap widget height

Defer CopilotChat render to client-only to avoid Radix UI generating
different IDs on server vs client. Cap widget iframe height at 800px
to reduce whitespace from MCP widgets with large viewports.
---
 apps/app/src/app/page.tsx                      | 18 ++++++++++++------
 .../generative-ui/widget-renderer.tsx          |  2 +-
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/apps/app/src/app/page.tsx b/apps/app/src/app/page.tsx
index 7994182..b5d3770 100644
--- a/apps/app/src/app/page.tsx
+++ b/apps/app/src/app/page.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect } from "react";
+import { useEffect, useState } from "react";
 import { ExampleLayout } from "@/components/example-layout";
 import { useGenerativeUIExamples, useExampleSuggestions } from "@/hooks";
 import { ExplainerCardsPortal } from "@/components/explainer-cards";
@@ -11,6 +11,10 @@ export default function HomePage() {
   useGenerativeUIExamples();
   useExampleSuggestions();
 
+  // Defer CopilotChat to client-only to avoid Radix hydration ID mismatch
+  const [mounted, setMounted] = useState(false);
+  useEffect(() => setMounted(true), []);
+
   // Widget bridge: handle openLink from widget iframes
   useEffect(() => {
     const handler = (e: MessageEvent) => {
@@ -75,11 +79,13 @@ export default function HomePage() {
           </div>
 
           <ExampleLayout chatContent={
-            <CopilotChat
-              labels={{
-                welcomeMessageText: "What do you want to visualize today?",
-              }}
-            />
+            mounted ? (
+              <CopilotChat
+                labels={{
+                  welcomeMessageText: "What do you want to visualize today?",
+                }}
+              />
+            ) : null
           } />
           <ExplainerCardsPortal />
         </div>
diff --git a/apps/app/src/components/generative-ui/widget-renderer.tsx b/apps/app/src/components/generative-ui/widget-renderer.tsx
index 5426af1..4c96ab5 100644
--- a/apps/app/src/components/generative-ui/widget-renderer.tsx
+++ b/apps/app/src/components/generative-ui/widget-renderer.tsx
@@ -455,7 +455,7 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
       e.data?.type === "widget-resize" &&
       typeof e.data.height === "number"
     ) {
-      setHeight(Math.max(50, Math.min(e.data.height + 8, 4000)));
+      setHeight(Math.max(50, Math.min(e.data.height + 8, 800)));
     }
   }, []);
 

From 293135aace845d3b08980a2e0ca1fd0a6d80b6e6 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:26:20 -0700
Subject: [PATCH 05/28] feat: add zoom controls to widget renderer

Zoom in/out/fit buttons in the toolbar with CSS transform scaling.
Zoom persists across streaming updates and works in both inline
and fullscreen modes.
---
 .../generative-ui/widget-renderer.tsx         | 91 +++++++++++++++----
 1 file changed, 73 insertions(+), 18 deletions(-)

diff --git a/apps/app/src/components/generative-ui/widget-renderer.tsx b/apps/app/src/components/generative-ui/widget-renderer.tsx
index 4c96ab5..a617779 100644
--- a/apps/app/src/components/generative-ui/widget-renderer.tsx
+++ b/apps/app/src/components/generative-ui/widget-renderer.tsx
@@ -443,6 +443,7 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
   const [height, setHeight] = useState(0);
   const [loaded, setLoaded] = useState(false);
   const [isFullscreen, setIsFullscreen] = useState(false);
+  const [zoom, setZoom] = useState(1);
   // Track what html has been committed to the iframe to avoid redundant reloads
   const committedHtmlRef = useRef("");
   const isFirstRenderRef = useRef(true);
@@ -510,6 +511,22 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
   const showLoading = !!html && !ready;
   const loadingPhrase = useLoadingPhrase(showLoading);
 
+  const toolbarBtnStyle: React.CSSProperties = {
+    background: "transparent",
+    border: "none",
+    cursor: "pointer",
+    padding: "2px 0",
+    color: "var(--text-secondary, #6b7280)",
+    fontSize: 13,
+    fontFamily: "inherit",
+    width: 24,
+    height: 24,
+    display: "inline-flex",
+    alignItems: "center",
+    justifyContent: "center",
+    borderRadius: 4,
+  };
+
   return (
     <>
       {/* Fullscreen backdrop */}
@@ -547,12 +564,42 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
             display: "flex",
             justifyContent: "flex-end",
             alignItems: "center",
+            gap: 4,
             padding: isFullscreen ? "8px 16px" : "0 0 4px 0",
             ...(isFullscreen ? { borderBottom: "1px solid var(--border-secondary, #e5e7eb)" } : {}),
           }}>
+            {ready && (
+              <>
+                <button
+                  onClick={() => setZoom(z => Math.max(0.25, z - 0.25))}
+                  style={toolbarBtnStyle}
+                  title="Zoom out"
+                >
+                  −
+                </button>
+                <span style={{ fontSize: 12, color: "var(--text-secondary, #6b7280)", minWidth: 36, textAlign: "center", fontFamily: "inherit" }}>
+                  {Math.round(zoom * 100)}%
+                </span>
+                <button
+                  onClick={() => setZoom(z => Math.min(3, z + 0.25))}
+                  style={toolbarBtnStyle}
+                  title="Zoom in"
+                >
+                  +
+                </button>
+                <button
+                  onClick={() => setZoom(1)}
+                  style={{ ...toolbarBtnStyle, fontSize: 11, width: "auto", padding: "2px 8px" }}
+                  title="Reset zoom"
+                >
+                  Fit
+                </button>
+                <div style={{ width: 1, height: 16, background: "var(--border-secondary, #e5e7eb)", margin: "0 4px" }} />
+              </>
+            )}
             <button
               onClick={() => setIsFullscreen(v => !v)}
-              style={{ background: "transparent", border: "none", cursor: "pointer", padding: "4px 8px", color: "var(--text-secondary, #6b7280)", fontSize: 13, fontFamily: "inherit" }}
+              style={{ ...toolbarBtnStyle, width: "auto", padding: "2px 8px" }}
             >
               {isFullscreen ? "✕ Close" : "⤢ Expand"}
             </button>
@@ -596,23 +643,31 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
             </div>
           </div>
         )}
-        {/* Single iframe — always mounted so ref is stable */}
-        <iframe
-          ref={iframeRef}
-          sandbox="allow-scripts allow-same-origin"
-          className="w-full border-0"
-          onLoad={() => setLoaded(true)}
-          style={{
-            height: isFullscreen ? undefined : (ready ? height : 0),
-            flex: isFullscreen ? 1 : undefined,
-            overflow: "hidden",
-            background: "transparent",
-            opacity: ready ? 1 : 0,
-            transition: "opacity 300ms ease-in",
-            display: html ? undefined : "none",
-          }}
-          title={title}
-        />
+        {/* Zoom container — clips overflow, iframe scales inside */}
+        <div style={{
+          overflow: "hidden",
+          height: isFullscreen ? undefined : (ready ? height * zoom : 0),
+          flex: isFullscreen ? 1 : undefined,
+          display: html ? undefined : "none",
+        }}>
+          <iframe
+            ref={iframeRef}
+            sandbox="allow-scripts allow-same-origin"
+            className="w-full border-0"
+            onLoad={() => setLoaded(true)}
+            style={{
+              height: isFullscreen ? `${100 / zoom}%` : (ready ? height : 0),
+              width: `${100 / zoom}%`,
+              transform: `scale(${zoom})`,
+              transformOrigin: "top left",
+              overflow: "hidden",
+              background: "transparent",
+              opacity: ready ? 1 : 0,
+              transition: "opacity 300ms ease-in, transform 150ms ease-out",
+            }}
+            title={title}
+          />
+        </div>
       </div>
     </>
 

From c585bde90540bf104efa8725c6ca4d8c6f982ac4 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:31:21 -0700
Subject: [PATCH 06/28] fix: add maxDuration to prevent route timeout during
 MCP calls

---
 apps/app/src/app/api/copilotkit/route.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/apps/app/src/app/api/copilotkit/route.ts b/apps/app/src/app/api/copilotkit/route.ts
index 832d831..bbac90e 100644
--- a/apps/app/src/app/api/copilotkit/route.ts
+++ b/apps/app/src/app/api/copilotkit/route.ts
@@ -25,6 +25,9 @@ defaultAgent.use(
   })
 );
 
+// Allow long-running agent + MCP tool calls
+export const maxDuration = 300;
+
 // 3. Define the route and CopilotRuntime for the agent
 export const POST = async (req: NextRequest) => {
   const { handleRequest } = copilotRuntimeNextJSAppRouterEndpoint({

From 99576ed0f66cae2cc96683db5ffa61d98cbae4d9 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 07:56:22 -0700
Subject: [PATCH 07/28] feat: move zoom controls from widgetRenderer to MCP
 widget only

Remove zoom from WidgetRenderer (regular widgets don't need it).
Add McpWidgetZoom component that uses MutationObserver to detect
MCPAppsActivityRenderer containers and inject zoom/expand controls
specifically for Excalidraw and other MCP widget output.
---
 apps/app/src/app/page.tsx                     |   2 +
 .../generative-ui/widget-renderer.tsx         |  91 ++--------
 apps/app/src/components/mcp-widget-zoom.tsx   | 156 ++++++++++++++++++
 3 files changed, 176 insertions(+), 73 deletions(-)
 create mode 100644 apps/app/src/components/mcp-widget-zoom.tsx

diff --git a/apps/app/src/app/page.tsx b/apps/app/src/app/page.tsx
index b5d3770..e228b1c 100644
--- a/apps/app/src/app/page.tsx
+++ b/apps/app/src/app/page.tsx
@@ -4,6 +4,7 @@ import { useEffect, useState } from "react";
 import { ExampleLayout } from "@/components/example-layout";
 import { useGenerativeUIExamples, useExampleSuggestions } from "@/hooks";
 import { ExplainerCardsPortal } from "@/components/explainer-cards";
+import { McpWidgetZoom } from "@/components/mcp-widget-zoom";
 
 import { CopilotChat } from "@copilotkit/react-core/v2";
 
@@ -88,6 +89,7 @@ export default function HomePage() {
             ) : null
           } />
           <ExplainerCardsPortal />
+          <McpWidgetZoom />
         </div>
       </div>
     </>
diff --git a/apps/app/src/components/generative-ui/widget-renderer.tsx b/apps/app/src/components/generative-ui/widget-renderer.tsx
index a617779..4c96ab5 100644
--- a/apps/app/src/components/generative-ui/widget-renderer.tsx
+++ b/apps/app/src/components/generative-ui/widget-renderer.tsx
@@ -443,7 +443,6 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
   const [height, setHeight] = useState(0);
   const [loaded, setLoaded] = useState(false);
   const [isFullscreen, setIsFullscreen] = useState(false);
-  const [zoom, setZoom] = useState(1);
   // Track what html has been committed to the iframe to avoid redundant reloads
   const committedHtmlRef = useRef("");
   const isFirstRenderRef = useRef(true);
@@ -511,22 +510,6 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
   const showLoading = !!html && !ready;
   const loadingPhrase = useLoadingPhrase(showLoading);
 
-  const toolbarBtnStyle: React.CSSProperties = {
-    background: "transparent",
-    border: "none",
-    cursor: "pointer",
-    padding: "2px 0",
-    color: "var(--text-secondary, #6b7280)",
-    fontSize: 13,
-    fontFamily: "inherit",
-    width: 24,
-    height: 24,
-    display: "inline-flex",
-    alignItems: "center",
-    justifyContent: "center",
-    borderRadius: 4,
-  };
-
   return (
     <>
       {/* Fullscreen backdrop */}
@@ -564,42 +547,12 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
             display: "flex",
             justifyContent: "flex-end",
             alignItems: "center",
-            gap: 4,
             padding: isFullscreen ? "8px 16px" : "0 0 4px 0",
             ...(isFullscreen ? { borderBottom: "1px solid var(--border-secondary, #e5e7eb)" } : {}),
           }}>
-            {ready && (
-              <>
-                <button
-                  onClick={() => setZoom(z => Math.max(0.25, z - 0.25))}
-                  style={toolbarBtnStyle}
-                  title="Zoom out"
-                >
-                  −
-                </button>
-                <span style={{ fontSize: 12, color: "var(--text-secondary, #6b7280)", minWidth: 36, textAlign: "center", fontFamily: "inherit" }}>
-                  {Math.round(zoom * 100)}%
-                </span>
-                <button
-                  onClick={() => setZoom(z => Math.min(3, z + 0.25))}
-                  style={toolbarBtnStyle}
-                  title="Zoom in"
-                >
-                  +
-                </button>
-                <button
-                  onClick={() => setZoom(1)}
-                  style={{ ...toolbarBtnStyle, fontSize: 11, width: "auto", padding: "2px 8px" }}
-                  title="Reset zoom"
-                >
-                  Fit
-                </button>
-                <div style={{ width: 1, height: 16, background: "var(--border-secondary, #e5e7eb)", margin: "0 4px" }} />
-              </>
-            )}
             <button
               onClick={() => setIsFullscreen(v => !v)}
-              style={{ ...toolbarBtnStyle, width: "auto", padding: "2px 8px" }}
+              style={{ background: "transparent", border: "none", cursor: "pointer", padding: "4px 8px", color: "var(--text-secondary, #6b7280)", fontSize: 13, fontFamily: "inherit" }}
             >
               {isFullscreen ? "✕ Close" : "⤢ Expand"}
             </button>
@@ -643,31 +596,23 @@ export function WidgetRenderer({ title, description, html }: WidgetRendererProps
             </div>
           </div>
         )}
-        {/* Zoom container — clips overflow, iframe scales inside */}
-        <div style={{
-          overflow: "hidden",
-          height: isFullscreen ? undefined : (ready ? height * zoom : 0),
-          flex: isFullscreen ? 1 : undefined,
-          display: html ? undefined : "none",
-        }}>
-          <iframe
-            ref={iframeRef}
-            sandbox="allow-scripts allow-same-origin"
-            className="w-full border-0"
-            onLoad={() => setLoaded(true)}
-            style={{
-              height: isFullscreen ? `${100 / zoom}%` : (ready ? height : 0),
-              width: `${100 / zoom}%`,
-              transform: `scale(${zoom})`,
-              transformOrigin: "top left",
-              overflow: "hidden",
-              background: "transparent",
-              opacity: ready ? 1 : 0,
-              transition: "opacity 300ms ease-in, transform 150ms ease-out",
-            }}
-            title={title}
-          />
-        </div>
+        {/* Single iframe — always mounted so ref is stable */}
+        <iframe
+          ref={iframeRef}
+          sandbox="allow-scripts allow-same-origin"
+          className="w-full border-0"
+          onLoad={() => setLoaded(true)}
+          style={{
+            height: isFullscreen ? undefined : (ready ? height : 0),
+            flex: isFullscreen ? 1 : undefined,
+            overflow: "hidden",
+            background: "transparent",
+            opacity: ready ? 1 : 0,
+            transition: "opacity 300ms ease-in",
+            display: html ? undefined : "none",
+          }}
+          title={title}
+        />
       </div>
     </>
 
diff --git a/apps/app/src/components/mcp-widget-zoom.tsx b/apps/app/src/components/mcp-widget-zoom.tsx
new file mode 100644
index 0000000..e8e17b0
--- /dev/null
+++ b/apps/app/src/components/mcp-widget-zoom.tsx
@@ -0,0 +1,156 @@
+"use client";
+
+import { useEffect, useRef } from "react";
+
+/**
+ * Observes the DOM for MCP Apps widget containers (rendered by CopilotKit's
+ * MCPAppsActivityRenderer) and injects zoom / expand controls around them.
+ *
+ * Identification heuristic: a <div> with inline style `min-height: 100px`
+ * that contains an <iframe> created by the renderer.
+ */
+export function McpWidgetZoom() {
+  const processed = useRef(new WeakSet<Element>());
+
+  useEffect(() => {
+    function injectControls(container: HTMLElement) {
+      if (processed.current.has(container)) return;
+      processed.current.add(container);
+
+      let zoom = 1;
+      const iframe = container.querySelector("iframe") as HTMLIFrameElement | null;
+      if (!iframe) return;
+
+      // Wrap iframe in a zoom-clip div
+      const clipDiv = document.createElement("div");
+      clipDiv.style.overflow = "hidden";
+      clipDiv.style.position = "relative";
+      clipDiv.style.width = "100%";
+      clipDiv.style.flex = "1";
+      iframe.parentNode?.insertBefore(clipDiv, iframe);
+      clipDiv.appendChild(iframe);
+
+      // Toolbar
+      const toolbar = document.createElement("div");
+      toolbar.style.cssText =
+        "display:flex;justify-content:flex-end;align-items:center;gap:4px;padding:4px 8px;";
+
+      const btnStyle =
+        "background:transparent;border:none;cursor:pointer;padding:2px 6px;" +
+        "color:#6b7280;font-size:13px;font-family:inherit;border-radius:4px;";
+
+      const zoomOut = document.createElement("button");
+      zoomOut.textContent = "−";
+      zoomOut.title = "Zoom out";
+      zoomOut.style.cssText = btnStyle;
+
+      const zoomLabel = document.createElement("span");
+      zoomLabel.textContent = "100%";
+      zoomLabel.style.cssText = "font-size:12px;color:#6b7280;min-width:36px;text-align:center;";
+
+      const zoomIn = document.createElement("button");
+      zoomIn.textContent = "+";
+      zoomIn.title = "Zoom in";
+      zoomIn.style.cssText = btnStyle;
+
+      const fitBtn = document.createElement("button");
+      fitBtn.textContent = "Fit";
+      fitBtn.title = "Reset zoom";
+      fitBtn.style.cssText = btnStyle + "font-size:11px;";
+
+      const sep = document.createElement("div");
+      sep.style.cssText = "width:1px;height:16px;background:#e5e7eb;margin:0 4px;";
+
+      const expandBtn = document.createElement("button");
+      expandBtn.textContent = "⤢ Expand";
+      expandBtn.style.cssText = btnStyle;
+
+      toolbar.append(zoomOut, zoomLabel, zoomIn, fitBtn, sep, expandBtn);
+      container.insertBefore(toolbar, container.firstChild);
+
+      function applyZoom() {
+        iframe.style.transform = `scale(${zoom})`;
+        iframe.style.transformOrigin = "top left";
+        iframe.style.width = `${100 / zoom}%`;
+        iframe.style.height = `${100 / zoom}%`;
+        clipDiv.style.height = container.style.height || "auto";
+        zoomLabel.textContent = `${Math.round(zoom * 100)}%`;
+      }
+
+      zoomOut.addEventListener("click", () => {
+        zoom = Math.max(0.25, zoom - 0.25);
+        applyZoom();
+      });
+      zoomIn.addEventListener("click", () => {
+        zoom = Math.min(3, zoom + 0.25);
+        applyZoom();
+      });
+      fitBtn.addEventListener("click", () => {
+        zoom = 1;
+        applyZoom();
+      });
+
+      // Fullscreen modal
+      let isFullscreen = false;
+      expandBtn.addEventListener("click", () => {
+        isFullscreen = !isFullscreen;
+        if (isFullscreen) {
+          container.style.cssText =
+            "position:fixed;top:10%;left:12.5%;width:75%;height:80%;z-index:9999;" +
+            "background:var(--background,#fff);border-radius:16px;" +
+            "box-shadow:0 25px 50px -12px rgba(0,0,0,0.25);display:flex;flex-direction:column;overflow:hidden;";
+          clipDiv.style.flex = "1";
+          clipDiv.style.height = "auto";
+          expandBtn.textContent = "✕ Close";
+          // Backdrop
+          const backdrop = document.createElement("div");
+          backdrop.id = "mcp-zoom-backdrop";
+          backdrop.style.cssText =
+            "position:fixed;inset:0;z-index:9998;background:rgba(0,0,0,0.5);";
+          backdrop.addEventListener("click", () => expandBtn.click());
+          document.body.appendChild(backdrop);
+        } else {
+          container.style.cssText =
+            "width:100%;min-height:100px;overflow:hidden;position:relative;";
+          clipDiv.style.flex = "";
+          clipDiv.style.height = container.dataset.originalHeight || "auto";
+          expandBtn.textContent = "⤢ Expand";
+          document.getElementById("mcp-zoom-backdrop")?.remove();
+        }
+      });
+
+      // Escape key
+      const handleEsc = (e: KeyboardEvent) => {
+        if (e.key === "Escape" && isFullscreen) expandBtn.click();
+      };
+      window.addEventListener("keydown", handleEsc);
+    }
+
+    function scanForMcpWidgets() {
+      // MCPAppsActivityRenderer containers have min-height: 100px and overflow: hidden
+      document.querySelectorAll<HTMLElement>("div[style]").forEach((div) => {
+        const style = div.style;
+        if (
+          style.minHeight === "100px" &&
+          style.overflow === "hidden" &&
+          style.position === "relative" &&
+          div.querySelector("iframe") &&
+          !processed.current.has(div)
+        ) {
+          // Save original height for restore
+          div.dataset.originalHeight = style.height;
+          injectControls(div);
+        }
+      });
+    }
+
+    // Observe for new MCP widgets appearing
+    const observer = new MutationObserver(() => scanForMcpWidgets());
+    observer.observe(document.body, { childList: true, subtree: true });
+    scanForMcpWidgets();
+
+    return () => observer.disconnect();
+  }, []);
+
+  return null;
+}

From c50fe38b96f7d6bf8c53069b08d4b7495d9be6ec Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:07:16 -0700
Subject: [PATCH 08/28] feat: add markdown canvas editor with LangGraph
 integration

- Add /canvas route with side-by-side markdown editor and chat layout
- Implement document_agent LangGraph graph with predictive state streaming
- Add Tiptap markdown editor with real-time diff highlighting (green additions, red deletions)
- Implement human-in-the-loop confirmation workflow for agent changes
- Add bidirectional state sync between editor and agent
- Apply OpenGenerativeUI branded styling with animated background
- Register document_agent in CopilotKit runtime alongside default agent
- Fix Radix UI hydration mismatch by deferring CopilotChat to client-side
- Fix infinite update depth error with proper dependency management
- Add responsive white-boxed layout with rounded corners and shadows

Dependencies added:
- @tiptap/react and @tiptap/starter-kit for rich markdown editing
- markdown-it for markdown parsing
- diff library for character-level diff visualization
---
 apps/agent/document_agent.py             | 151 ++++++++++
 apps/agent/langgraph.json                |   3 +-
 apps/app/package.json                    |   6 +
 apps/app/src/app/api/copilotkit/route.ts |  16 +-
 apps/app/src/app/canvas/page.tsx         | 333 +++++++++++++++++++++++
 apps/app/src/app/canvas/style.css        | 101 +++++++
 6 files changed, 606 insertions(+), 4 deletions(-)
 create mode 100644 apps/agent/document_agent.py
 create mode 100644 apps/app/src/app/canvas/page.tsx
 create mode 100644 apps/app/src/app/canvas/style.css

diff --git a/apps/agent/document_agent.py b/apps/agent/document_agent.py
new file mode 100644
index 0000000..a842047
--- /dev/null
+++ b/apps/agent/document_agent.py
@@ -0,0 +1,151 @@
+"""
+Document editing agent with predictive state streaming.
+Demonstrates real-time markdown document editing with diffs.
+"""
+
+import uuid
+from typing import List, Any, Optional
+import os
+
+from langchain_core.runnables import RunnableConfig
+from langchain_core.messages import SystemMessage
+from langchain_core.tools import tool
+from langgraph.graph import StateGraph, END, START
+from langgraph.types import Command
+from langgraph.graph import MessagesState
+from langgraph.checkpoint.memory import MemorySaver
+from langchain_openai import ChatOpenAI
+
+
+@tool
+def write_document(document: str):
+    """
+    Write or update a document. Use markdown formatting.
+    Format the document with headings, lists, code blocks, etc.
+    Do not use italic or strike-through formatting - these are reserved for diffs.
+    Write the complete document, even when making small edits.
+    Keep document changes minimal - don't rewrite everything.
+    """
+    return document
+
+
+class AgentState(MessagesState):
+    """State for the document editing agent."""
+    document: Optional[str] = None
+    tools: List[Any]
+
+
+async def start_node(state: AgentState, config: RunnableConfig):
+    """Entry point for the agent."""
+    return Command(goto="chat_node")
+
+
+async def chat_node(state: AgentState, config: Optional[RunnableConfig] = None):
+    """Main chat node that handles document editing."""
+
+    system_prompt = f"""
+You are a helpful assistant for writing and editing documents.
+Your role is to help users create, modify, and improve their documents.
+
+To write or edit the document, you MUST use the write_document tool.
+Always write the complete document, even when making small changes.
+After writing, briefly summarize the changes you made (1-2 sentences max).
+
+Current document state:
+----
+{state.get('document', '(empty)')}
+----
+
+Focus on the user's request and make the changes they asked for.
+"""
+
+    if config is None:
+        config = RunnableConfig(recursion_limit=25)
+
+    # Enable predictive state streaming for the write_document tool
+    config["metadata"]["predict_state"] = [
+        {
+            "state_key": "document",
+            "tool": "write_document",
+            "tool_argument": "document",
+        }
+    ]
+
+    model = ChatOpenAI(model="gpt-4.1-mini")
+    model_with_tools = model.bind_tools(
+        [*state.get("tools", []), write_document],
+        parallel_tool_calls=False,
+    )
+
+    response = await model_with_tools.ainvoke(
+        [SystemMessage(content=system_prompt), *state["messages"]], config
+    )
+
+    messages = state["messages"] + [response]
+
+    # Extract tool calls
+    if hasattr(response, "tool_calls") and response.tool_calls:
+        tool_call = response.tool_calls[0]
+
+        if isinstance(tool_call, dict):
+            tool_call_id = tool_call["id"]
+            tool_call_name = tool_call["name"]
+            tool_call_args = tool_call["args"]
+        else:
+            tool_call_id = tool_call.id
+            tool_call_name = tool_call.name
+            tool_call_args = tool_call.args
+
+        if tool_call_name == "write_document":
+            # Add tool response message
+            tool_response = {
+                "role": "tool",
+                "content": "Document written.",
+                "tool_call_id": tool_call_id,
+            }
+
+            # Create confirmation tool call for human-in-the-loop
+            confirm_tool_call = {
+                "role": "assistant",
+                "content": "",
+                "tool_calls": [
+                    {
+                        "id": str(uuid.uuid4()),
+                        "function": {
+                            "name": "write_document",
+                            "arguments": '{"document": ""}',
+                        },
+                    }
+                ],
+            }
+
+            messages = messages + [tool_response, confirm_tool_call]
+
+            return Command(
+                goto=END,
+                update={
+                    "messages": messages,
+                    "document": tool_call_args["document"],
+                },
+            )
+
+    return Command(goto=END, update={"messages": messages})
+
+
+# Build the graph
+workflow = StateGraph(AgentState)
+workflow.add_node("start_node", start_node)
+workflow.add_node("chat_node", chat_node)
+workflow.set_entry_point("start_node")
+workflow.add_edge(START, "start_node")
+workflow.add_edge("start_node", "chat_node")
+workflow.add_edge("chat_node", END)
+
+# Compile with checkpointer
+is_fast_api = os.environ.get("LANGGRAPH_FAST_API", "false").lower() == "true"
+
+if is_fast_api:
+    memory = MemorySaver()
+    graph = workflow.compile(checkpointer=memory)
+else:
+    graph = workflow.compile()
diff --git a/apps/agent/langgraph.json b/apps/agent/langgraph.json
index 804b1ea..8755850 100644
--- a/apps/agent/langgraph.json
+++ b/apps/agent/langgraph.json
@@ -4,7 +4,8 @@
   "dependencies": ["."],
   "package_manager": "uv",
   "graphs": {
-    "sample_agent": "./main.py:graph"
+    "sample_agent": "./main.py:graph",
+    "document_agent": "./document_agent.py:graph"
   },
   "env": "../../.env"
 }
diff --git a/apps/app/package.json b/apps/app/package.json
index e6aa958..6730168 100644
--- a/apps/app/package.json
+++ b/apps/app/package.json
@@ -15,6 +15,10 @@
     "@copilotkit/react-ui": "next",
     "@copilotkit/runtime": "next",
     "@copilotkitnext/shared": "next",
+    "@tiptap/react": "^3.20.4",
+    "@tiptap/starter-kit": "^3.20.4",
+    "diff": "^8.0.3",
+    "markdown-it": "^14.1.1",
     "next": "16.1.6",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
@@ -25,6 +29,8 @@
   "devDependencies": {
     "@eslint/eslintrc": "^3",
     "@tailwindcss/postcss": "^4",
+    "@types/diff": "^8.0.0",
+    "@types/markdown-it": "^14.1.2",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",
diff --git a/apps/app/src/app/api/copilotkit/route.ts b/apps/app/src/app/api/copilotkit/route.ts
index bbac90e..45912d2 100644
--- a/apps/app/src/app/api/copilotkit/route.ts
+++ b/apps/app/src/app/api/copilotkit/route.ts
@@ -7,7 +7,7 @@ import { LangGraphAgent } from "@copilotkit/runtime/langgraph";
 import { MCPAppsMiddleware } from "@ag-ui/mcp-apps-middleware";
 import { NextRequest } from "next/server";
 
-// 1. Define the agent connection to LangGraph
+// 1. Define the default agent connection to LangGraph
 const defaultAgent = new LangGraphAgent({
   deploymentUrl: process.env.LANGGRAPH_DEPLOYMENT_URL || "http://localhost:8123",
   graphId: "sample_agent",
@@ -25,16 +25,26 @@ defaultAgent.use(
   })
 );
 
+// 3. Define the document agent for the canvas editor
+const documentAgent = new LangGraphAgent({
+  deploymentUrl: process.env.LANGGRAPH_DEPLOYMENT_URL || "http://localhost:8123",
+  graphId: "document_agent",
+  langsmithApiKey: process.env.LANGSMITH_API_KEY || "",
+});
+
 // Allow long-running agent + MCP tool calls
 export const maxDuration = 300;
 
-// 3. Define the route and CopilotRuntime for the agent
+// 4. Define the route and CopilotRuntime for the agents
 export const POST = async (req: NextRequest) => {
   const { handleRequest } = copilotRuntimeNextJSAppRouterEndpoint({
     endpoint: "/api/copilotkit",
     serviceAdapter: new ExperimentalEmptyAdapter(),
     runtime: new CopilotRuntime({
-      agents: { default: defaultAgent },
+      agents: {
+        default: defaultAgent,
+        document_agent: documentAgent,
+      },
       a2ui: { injectA2UITool: true },
     }),
   });
diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
new file mode 100644
index 0000000..cd9bb3b
--- /dev/null
+++ b/apps/app/src/app/canvas/page.tsx
@@ -0,0 +1,333 @@
+"use client";
+
+import "@copilotkit/react-core/v2/styles.css";
+import "./style.css";
+
+import MarkdownIt from "markdown-it";
+import React, { useEffect, useRef, useState } from "react";
+import { diffWords } from "diff";
+import { useEditor, EditorContent } from "@tiptap/react";
+import StarterKit from "@tiptap/starter-kit";
+import {
+  useAgent,
+  UseAgentUpdate,
+  useHumanInTheLoop,
+  useConfigureSuggestions,
+  CopilotChat,
+} from "@copilotkit/react-core/v2";
+import { CopilotKit } from "@copilotkit/react-core";
+import { z } from "zod";
+
+const extensions = [StarterKit];
+
+export default function CanvasPage() {
+  // Defer CopilotChat to client-only to avoid Radix hydration ID mismatch
+  const [mounted, setMounted] = useState(false);
+  useEffect(() => setMounted(true), []);
+
+  return (
+    <>
+      {/* Animated background */}
+      <div className="abstract-bg">
+        <div className="blob-3" />
+      </div>
+
+      {/* App shell */}
+      <div className="brand-shell" style={{ position: "relative", zIndex: 1, height: "100vh", overflow: "hidden" }}>
+        <CopilotKit
+          runtimeUrl="/api/copilotkit"
+          showDevConsole={false}
+        >
+          <div className="h-screen w-full flex gap-4 p-4" style={{ background: "var(--surface-light)" }}>
+            {/* Left: Document Editor */}
+            <div className="flex-1 overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
+              <DocumentEditor />
+            </div>
+
+            {/* Right: Chat Panel */}
+            <div className="w-[400px] overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
+              {mounted && <CopilotChat agentId="document_agent" className="h-full flex flex-col" />}
+            </div>
+          </div>
+        </CopilotKit>
+      </div>
+    </>
+  );
+}
+
+interface AgentState {
+  document: string;
+}
+
+const DocumentEditor = () => {
+  const editor = useEditor({
+    extensions,
+    immediatelyRender: false,
+    editorProps: {
+      attributes: { class: "tiptap" },
+    },
+  });
+
+  const [placeholderVisible, setPlaceholderVisible] = useState(false);
+  const [currentDocument, setCurrentDocument] = useState("");
+  const wasRunning = useRef(false);
+
+  useConfigureSuggestions({
+    suggestions: [
+      {
+        title: "Write a pirate story",
+        message: "Please write a story about a pirate named Candy Beard.",
+      },
+      {
+        title: "Write a mermaid story",
+        message: "Please write a story about a mermaid named Luna.",
+      },
+      {
+        title: "Add character",
+        message: "Please add a character named Courage.",
+      },
+      {
+        title: "Create documentation",
+        message: "Create technical documentation for a REST API.",
+      },
+    ],
+    available: "always",
+  });
+
+  const { agent } = useAgent({
+    agentId: "document_agent",
+    updates: [UseAgentUpdate.OnStateChanged, UseAgentUpdate.OnRunStatusChanged],
+  });
+
+  const agentState = agent.state as AgentState | undefined;
+  const setAgentState = (s: AgentState) => agent.setState(s);
+  const isLoading = agent.isRunning;
+
+  // Handle loading state transitions
+  useEffect(() => {
+    if (isLoading) {
+      setCurrentDocument(editor?.getText() || "");
+    }
+    editor?.setEditable(!isLoading);
+  }, [isLoading, editor]);
+
+  // Handle final state update when run completes
+  useEffect(() => {
+    if (wasRunning.current && !isLoading) {
+      if (currentDocument.trim().length > 0 && currentDocument !== agentState?.document) {
+        const newDocument = agentState?.document || "";
+        const diff = diffPartialText(currentDocument, newDocument, true);
+        const markdown = fromMarkdown(diff);
+        editor?.commands.setContent(markdown);
+      }
+    }
+    wasRunning.current = isLoading;
+  }, [isLoading, currentDocument, agentState?.document, editor]);
+
+  // Handle streaming updates while agent is running
+  useEffect(() => {
+    if (isLoading) {
+      if (currentDocument.trim().length > 0) {
+        const newDocument = agentState?.document || "";
+        const diff = diffPartialText(currentDocument, newDocument);
+        const markdown = fromMarkdown(diff);
+        editor?.commands.setContent(markdown);
+      } else {
+        const markdown = fromMarkdown(agentState?.document || "");
+        editor?.commands.setContent(markdown);
+      }
+    }
+  }, [agentState?.document, isLoading, currentDocument, editor]);
+
+  const text = editor?.getText() || "";
+
+  // Sync user edits to agent state
+  useEffect(() => {
+    setPlaceholderVisible(text.length === 0);
+
+    if (!isLoading && text !== currentDocument) {
+      setCurrentDocument(text);
+      setAgentState({
+        document: text,
+      });
+    }
+  }, [text, isLoading, currentDocument, setAgentState]);
+
+  // Human-in-the-loop: confirm_changes (legacy)
+  useHumanInTheLoop(
+    {
+      agentId: "document_agent",
+      name: "confirm_changes",
+      render: ({ args, respond, status }) => (
+        <ConfirmChanges
+          args={args}
+          respond={respond}
+          status={status}
+          onReject={() => {
+            editor?.commands.setContent(fromMarkdown(currentDocument));
+            setAgentState({ document: currentDocument });
+          }}
+          onConfirm={() => {
+            editor?.commands.setContent(fromMarkdown(agentState?.document || ""));
+            setCurrentDocument(agentState?.document || "");
+            setAgentState({ document: agentState?.document || "" });
+          }}
+        />
+      ),
+    },
+    [agentState?.document],
+  );
+
+  // Human-in-the-loop: write_document (primary)
+  useHumanInTheLoop(
+    {
+      agentId: "document_agent",
+      name: "write_document",
+      description: "Present the proposed changes to the user for review",
+      parameters: z.object({
+        document: z.string().describe("The full updated document in markdown format"),
+      }),
+      render({ args, status, respond }: { args: { document?: string }; status: string; respond?: (result: unknown) => Promise<void> }) {
+        if (status === "executing") {
+          return (
+            <ConfirmChanges
+              args={args}
+              respond={respond}
+              status={status}
+              onReject={() => {
+                editor?.commands.setContent(fromMarkdown(currentDocument));
+                setAgentState({ document: currentDocument });
+              }}
+              onConfirm={() => {
+                editor?.commands.setContent(fromMarkdown(agentState?.document || ""));
+                setCurrentDocument(agentState?.document || "");
+                setAgentState({ document: agentState?.document || "" });
+              }}
+            />
+          );
+        }
+        return <></>;
+      },
+    },
+    [agentState?.document],
+  );
+
+  return (
+    <div className="relative h-full w-full flex flex-col overflow-hidden">
+      {placeholderVisible && (
+        <div className="absolute top-6 left-10 pointer-events-none text-sm" style={{ color: "var(--text-tertiary)" }}>
+          Write whatever you want here in Markdown format...
+        </div>
+      )}
+      <div className="flex-1 overflow-hidden flex flex-col">
+        <EditorContent editor={editor} className="h-full p-10 overflow-y-auto" />
+      </div>
+    </div>
+  );
+};
+
+interface ConfirmChangesProps {
+  args: any;
+  respond: any;
+  status: any;
+  onReject: () => void;
+  onConfirm: () => void;
+}
+
+function ConfirmChanges({ args, respond, status, onReject, onConfirm }: ConfirmChangesProps) {
+  const [accepted, setAccepted] = useState<boolean | null>(null);
+
+  return (
+    <div className="p-4 rounded-lg m-4" style={{ background: "var(--surface-quaternary)" }}>
+      <h2 className="text-base font-semibold mb-3" style={{ color: "var(--text-primary)" }}>Confirm Changes</h2>
+      <p className="text-sm mb-4" style={{ color: "var(--text-secondary)" }}>Accept the proposed changes?</p>
+      {accepted === null && (
+        <div className="flex justify-end gap-3">
+          <button
+            className={`px-4 py-2 rounded text-sm font-medium transition-colors ${
+              status === "executing"
+                ? "cursor-pointer"
+                : "cursor-default"
+            }`}
+            style={{
+              background: status === "executing" ? "var(--surface-quaternary)" : "var(--surface-tertiary)",
+              color: status === "executing" ? "var(--text-primary)" : "var(--text-tertiary)",
+            }}
+            disabled={status !== "executing"}
+            onClick={() => {
+              if (respond) {
+                setAccepted(false);
+                onReject();
+                respond({ accepted: false });
+              }
+            }}
+          >
+            Reject
+          </button>
+          <button
+            className={`px-4 py-2 rounded text-sm font-medium text-white transition-colors ${
+              status === "executing"
+                ? "cursor-pointer"
+                : "cursor-default"
+            }`}
+            style={{
+              background: status === "executing" ? "var(--color-lilac-dark)" : "var(--text-tertiary)",
+            }}
+            disabled={status !== "executing"}
+            onClick={() => {
+              if (respond) {
+                setAccepted(true);
+                onConfirm();
+                respond({ accepted: true });
+              }
+            }}
+          >
+            Confirm
+          </button>
+        </div>
+      )}
+      {accepted !== null && (
+        <div className="flex justify-end">
+          <div className="text-sm font-medium px-3 py-1 rounded" style={{ background: "var(--surface-quaternary)", color: "var(--text-secondary)" }}>
+            {accepted ? "✓ Accepted" : "✗ Rejected"}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}
+
+function fromMarkdown(text: string) {
+  const md = new MarkdownIt({
+    typographer: true,
+    html: true,
+  });
+
+  return md.render(text);
+}
+
+function diffPartialText(oldText: string, newText: string, isComplete: boolean = false) {
+  let oldTextToCompare = oldText;
+  if (oldText.length > newText.length && !isComplete) {
+    oldTextToCompare = oldText.slice(0, newText.length);
+  }
+
+  const changes = diffWords(oldTextToCompare, newText);
+
+  let result = "";
+  changes.forEach((part) => {
+    if (part.added) {
+      result += `<em>${part.value}</em>`;
+    } else if (part.removed) {
+      result += `<s>${part.value}</s>`;
+    } else {
+      result += part.value;
+    }
+  });
+
+  if (oldText.length > newText.length && !isComplete) {
+    result += oldText.slice(newText.length);
+  }
+
+  return result;
+}
diff --git a/apps/app/src/app/canvas/style.css b/apps/app/src/app/canvas/style.css
new file mode 100644
index 0000000..93ad9c4
--- /dev/null
+++ b/apps/app/src/app/canvas/style.css
@@ -0,0 +1,101 @@
+/* Tiptap Editor Base */
+.tiptap :first-child {
+  margin-top: 0;
+}
+
+.tiptap ul,
+.tiptap ol {
+  padding: 0 1rem;
+  margin: 1.25rem 1rem 1.25rem 0.4rem;
+}
+
+.tiptap ul li p,
+.tiptap ol li p {
+  margin-top: 0.25em;
+  margin-bottom: 0.25em;
+}
+
+.tiptap h1,
+.tiptap h2,
+.tiptap h3,
+.tiptap h4,
+.tiptap h5,
+.tiptap h6 {
+  line-height: 1.1;
+  margin-top: 3.5rem;
+  margin-bottom: 1.5rem;
+  text-wrap: pretty;
+  font-weight: bold;
+  color: var(--text-primary);
+}
+
+.tiptap p {
+  margin-bottom: 1rem;
+  color: var(--text-primary);
+}
+
+.tiptap h1 {
+  font-size: 1.4rem;
+}
+.tiptap h2 {
+  font-size: 1.2rem;
+}
+.tiptap h3 {
+  font-size: 1.1rem;
+}
+.tiptap h4,
+.tiptap h5,
+.tiptap h6 {
+  font-size: 1rem;
+}
+
+.tiptap code {
+  background-color: var(--surface-quaternary);
+  border-radius: 0.4rem;
+  color: var(--text-primary);
+  font-size: 0.85rem;
+  padding: 0.25em 0.3em;
+}
+
+.tiptap pre {
+  background: var(--text-primary);
+  border-radius: 0.5rem;
+  color: var(--surface-primary);
+  font-family: "Menlo", "Monaco", monospace;
+  margin: 1.5rem 0;
+  padding: 0.75rem 1rem;
+  overflow-x: auto;
+}
+
+.tiptap pre code {
+  background: none;
+  color: inherit;
+  font-size: 0.8rem;
+  padding: 0;
+}
+
+.tiptap blockquote {
+  border-left: 3px solid var(--border-light);
+  margin: 1.5rem 0;
+  padding-left: 1rem;
+  color: var(--text-secondary);
+}
+
+.tiptap hr {
+  border: none;
+  border-top: 1px solid var(--border-light);
+  margin: 2rem 0;
+}
+
+/* Diff highlights */
+.tiptap s {
+  background-color: rgba(249, 129, 129, 0.3);
+  padding: 2px;
+  text-decoration: line-through;
+}
+
+.tiptap em {
+  background-color: rgba(178, 242, 187, 1);
+  padding: 2px;
+  font-style: normal;
+}

From 8adf9e5c281567a08581ff9731cdf76e47332128 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:09:13 -0700
Subject: [PATCH 09/28] fix: add MCPAppsMiddleware to document agent for
 Excalidraw support

---
 .chalk/reviews/sessions/pr-13/handoff.md      |  46 ++
 .../sessions/pr-13/maintainer-reply.md        | 157 +++++
 ...ndings.pr-13.fix-lint-errors-2026-03-18.md | 142 +++++
 apps/app/src/app/api/copilotkit/route.ts      |  11 +
 pnpm-lock.yaml                                | 573 ++++++++++++++++++
 5 files changed, 929 insertions(+)
 create mode 100644 .chalk/reviews/sessions/pr-13/handoff.md
 create mode 100644 .chalk/reviews/sessions/pr-13/maintainer-reply.md
 create mode 100644 .chalk/reviews/sessions/pr-13/self.findings.pr-13.fix-lint-errors-2026-03-18.md

diff --git a/.chalk/reviews/sessions/pr-13/handoff.md b/.chalk/reviews/sessions/pr-13/handoff.md
new file mode 100644
index 0000000..33dbdc3
--- /dev/null
+++ b/.chalk/reviews/sessions/pr-13/handoff.md
@@ -0,0 +1,46 @@
+# Handoff
+
+## Scope
+- Item: PR #13 — fix: resolve lint errors in widget-renderer.tsx and layout.tsx
+- Branch: fix/lint-errors-2026-03-18
+- Commit: b834bc2
+- Goal: Fix lint errors introduced in prior commits and add community/docs files
+
+## What Changed
+- Added CODE_OF_CONDUCT.md (new community document)
+- Added CONTRIBUTING.md (new contributor guide)
+- Added Makefile with dev/build/lint/clean targets
+- Updated README.md Quick Start to use Makefile commands
+- Updated asset video link in README.md
+- layout.tsx: Migrated from Google Fonts `<link>` tag to Next.js `next/font/google` (Plus_Jakarta_Sans)
+- widget-renderer.tsx: Renamed `description` prop to `_description` to suppress unused-var lint warning
+- widget-renderer.tsx: Changed `useEffect` → `useLayoutEffect` for iframe srcdoc mutation
+- widget-renderer.tsx: Refactored loading phrase reset to use `prevActiveRef` to avoid reset-on-every-render
+
+## Files Changed
+- CODE_OF_CONDUCT.md (+117)
+- CONTRIBUTING.md (+207)
+- Makefile (+36)
+- README.md (+29, -7)
+- apps/app/src/app/layout.tsx (+9, -5)
+- apps/app/src/components/generative-ui/widget-renderer.tsx (+14, -4)
+
+## Risk Areas
+- **Lint still fails** — the PR claims to fix lint errors but `pnpm lint` exits with 2 errors and 1 warning after the changes
+- CONTRIBUTING.md has inconsistent repo URLs (mixes `OpenGenerativeUI` and `open-generative-ui` casing)
+- Font variable `--font-plus-jakarta` is set on body but may not be referenced in Tailwind/CSS config
+- `useLayoutEffect` calling `setLoaded(false)` + `setHeight(0)` still triggers `react-hooks/set-state-in-effect` lint error
+
+## Commands Run
+- `pnpm lint` — **FAILED** (2 errors, 1 warning in widget-renderer.tsx)
+
+## Known Gaps
+- Lint errors not actually resolved despite PR title claiming they are
+- No TypeScript build check run
+- No tests added or run
+
+## Suggested Focus For Reviewers
+1. **[BLOCKING]** Lint failure — PR goal unmet; `setIndex(0)` in useEffect (line 417) and `setLoaded(false)` in useLayoutEffect (line 465) still violate `react-hooks/set-state-in-effect`
+2. **[BLOCKING]** `_description` warning still present despite renaming
+3. CONTRIBUTING.md URL inconsistency (`OpenGenerativeUI` vs `open-generative-ui`)
+4. Font variable wiring — confirm `--font-plus-jakarta` is consumed in Tailwind config
diff --git a/.chalk/reviews/sessions/pr-13/maintainer-reply.md b/.chalk/reviews/sessions/pr-13/maintainer-reply.md
new file mode 100644
index 0000000..ec73233
--- /dev/null
+++ b/.chalk/reviews/sessions/pr-13/maintainer-reply.md
@@ -0,0 +1,157 @@
+# Maintainer Review Reply — PR #13
+
+> fix: resolve lint errors in widget-renderer.tsx and layout.tsx
+
+---
+
+Thanks for the PR! Great that you're tackling the lint errors — this is exactly the kind of housekeeping that keeps the codebase healthy.
+
+I went through the changes and have a few things to address before we merge. Two of them are blockers because they still trip the lint gate we're trying to fix.
+
+---
+
+### Blocking
+
+**`react-hooks/set-state-in-effect` — two violations remain in `widget-renderer.tsx`**
+
+`eslint-plugin-react-hooks@7` introduced a new rule that disallows synchronous `setState` calls directly inside an effect body. The PR currently has two spots that trigger it:
+
+1. **~line 417** — `setIndex(0)` inside `useEffect`. The intent (reset to 0 when `active` flips true) is right, but the reset needs to happen outside the synchronous effect body. One clean approach: track `active` in a ref and only call `setIndex` inside the `setInterval` callback — start the interval from index 0 and let it cycle from there.
+
+2. **~lines 465–466** — `setLoaded(false)` and `setHeight(0)` inside `useLayoutEffect`. These could be combined into a single `useReducer` reset, or the reset state stored in refs and derived at render time.
+
+These two cause CI to exit non-zero, so the PR goal isn't quite met yet.
+
+---
+
+### Minor (non-blocking, but worth cleaning up)
+
+**~line 431** — `_description` in the destructuring still produces an unused-var warning. The simplest fix is to just omit it from destructuring (`{ title, html }`). The prop can stay in `WidgetRendererProps` for API compatibility — only the binding needs to go.
+
+**`globals.css` font variable** — `layout.tsx` correctly injects `--font-plus-jakarta` onto `<body>`, but `globals.css` still references `'Plus Jakarta Sans'` as a hardcoded string instead of `var(--font-plus-jakarta)`. This means Next.js's self-hosted font optimization is wired up but never actually used. Easy one-liner fix:
+```css
+--font-family: var(--font-plus-jakarta), system-ui, sans-serif;
+```
+
+---
+
+Once the two `set-state-in-effect` issues are sorted, this should be good to go. Happy to help think through the hook refactors if useful — the `useLayoutEffect` one in particular has a few valid approaches depending on how you want to handle the reset.
+
+---
+
+<details>
+<summary><strong>Ask AI to Fix These Issues</strong></summary>
+
+Copy and paste the prompt below into Claude, ChatGPT, Cursor, or any AI assistant. It includes full context so the AI can fix all remaining lint failures without additional back-and-forth.
+
+---
+
+````
+I need help fixing 3 remaining ESLint failures in a Next.js / React project.
+The branch is `fix/lint-errors-2026-03-18` on https://github.com/CopilotKit/OpenGenerativeUI.
+Running `pnpm lint` currently exits with 2 errors and 1 warning — all in one file:
+  apps/app/src/components/generative-ui/widget-renderer.tsx
+
+The ESLint config extends `eslint-config-next/core-web-vitals` and `eslint-config-next/typescript`,
+which pulls in `eslint-plugin-react-hooks@7.0.1`. That version introduced a new rule —
+`react-hooks/set-state-in-effect` — that flags any synchronous setState call made directly inside
+an effect body (useEffect or useLayoutEffect).
+
+─── FAILURE 1 (Error) — widget-renderer.tsx ~line 414 ───────────────────────
+
+The `useLoadingPhrase` hook manages a cycling loading message. When `active` flips from false → true
+it should reset to phrase index 0, then start an interval to cycle phrases every 1800ms.
+
+Current (broken) code:
+```tsx
+function useLoadingPhrase(active: boolean) {
+  const [index, setIndex] = useState(0);
+  const prevActiveRef = useRef<boolean | null>(null);
+
+  useEffect(() => {
+    if (active && !prevActiveRef.current) {
+      setIndex(0);   // ← lint error: setState inside effect body
+    }
+    prevActiveRef.current = active;
+
+    if (!active) return;
+    const interval = setInterval(() => {
+      setIndex((i) => (i + 1) % LOADING_PHRASES.length);
+    }, 1800);
+    return () => clearInterval(interval);
+  }, [active]);
+
+  return LOADING_PHRASES[index];
+}
+```
+
+Fix goal: eliminate the synchronous `setIndex(0)` call from inside the effect body while keeping
+the same observable behaviour (index resets to 0 when active starts, then cycles).
+
+─── FAILURE 2 (Error) — widget-renderer.tsx ~line 460 ───────────────────────
+
+The `WidgetRenderer` component writes HTML into a sandboxed iframe imperatively (to preserve iframe
+JS state across React re-renders). When `html` changes it resets `loaded` and `height` back to
+false/0 so the loading overlay re-appears.
+
+Current (broken) code:
+```tsx
+useLayoutEffect(() => {
+  if (!html || !iframeRef.current) return;
+  if (html === committedHtmlRef.current) return;
+  committedHtmlRef.current = html;
+  iframeRef.current.srcdoc = assembleDocument(html);
+  setLoaded(false);   // ← lint error: setState inside effect body
+  setHeight(0);       // ← lint error: setState inside effect body
+}, [html]);
+```
+
+State declarations (for context):
+```tsx
+const [height, setHeight] = useState(0);
+const [loaded, setLoaded] = useState(false);
+```
+
+Fix goal: eliminate synchronous setState calls from inside the useLayoutEffect body while keeping
+the reset-on-html-change behaviour. The iframe srcdoc write must stay synchronous (that's why
+useLayoutEffect is correct here). Consider combining loaded+height into a single reducer, or
+storing reset state in refs and deriving render values from them.
+
+─── FAILURE 3 (Warning) — widget-renderer.tsx ~line 431 ───────────────────────
+
+The `description` prop is accepted in the function signature but never used. A previous attempt
+renamed it to `_description` but the project's ESLint config does not have `argsIgnorePattern: "^_"`
+configured so the warning still fires.
+
+Current (broken) code:
+```tsx
+export function WidgetRenderer({ title, _description, html }: WidgetRendererProps) {
+```
+
+Fix goal: silence the unused-var warning. The simplest fix is to remove `description` / `_description`
+from the destructuring entirely (just use `{ title, html }`). The prop can remain in the
+`WidgetRendererProps` type for API compatibility — only the destructuring binding needs to change.
+
+─── Bonus fix (globals.css) ────────────────────────────────────────────────
+
+In `apps/app/src/app/globals.css`, the font-family custom property currently reads:
+```css
+--font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
+```
+
+Change it to consume the Next.js font CSS variable injected by layout.tsx:
+```css
+--font-family: var(--font-plus-jakarta), system-ui, sans-serif;
+```
+
+─── Constraints ───────────────────────────────────────────────────────────────
+
+- Do NOT add eslint-disable comments as a workaround — fix the code properly.
+- Keep all existing observable behaviour identical (loading phrase cycling, iframe reload guard,
+  loaded/height reset on html change).
+- After your changes, `pnpm lint` must pass with 0 errors and 0 warnings.
+- Only edit `apps/app/src/components/generative-ui/widget-renderer.tsx` and
+  `apps/app/src/app/globals.css`.
+````
+
+</details>
diff --git a/.chalk/reviews/sessions/pr-13/self.findings.pr-13.fix-lint-errors-2026-03-18.md b/.chalk/reviews/sessions/pr-13/self.findings.pr-13.fix-lint-errors-2026-03-18.md
new file mode 100644
index 0000000..63110d1
--- /dev/null
+++ b/.chalk/reviews/sessions/pr-13/self.findings.pr-13.fix-lint-errors-2026-03-18.md
@@ -0,0 +1,142 @@
+# Chalk Agent Self-Review Findings
+
+- Branch: fix/lint-errors-2026-03-18
+- Commit: b834bc2
+- Base: 6df7350 (merge-base with main)
+- Session: pr-13
+- PR: #13 — fix: resolve lint errors in widget-renderer.tsx and layout.tsx
+- Date: 2026-03-19 UTC
+
+---
+
+## Verdict
+- Block merge: **yes**
+- Blocking findings: P0=2, P1=1
+
+---
+
+## Findings
+
+| ID | Severity | Category | File:Line | Issue | Failure mode | Suggested fix | Confidence |
+|---|---|---|---|---|---|---|---|
+| F-01 | P0 | Lint / Correctness | [widget-renderer.tsx:417](apps/app/src/components/generative-ui/widget-renderer.tsx#L417) | `setIndex(0)` called synchronously inside `useEffect` body — violates `react-hooks/set-state-in-effect`; lint exits non-zero | CI lint gate fails; PR goal unmet | Move reset out of effect: use a derived index or call `setIndex` only inside the `setInterval` callback (start at 0, interval handles cycling). Or split into two `useEffect`s — one that watches `active` going true and one that runs the interval. | High |
+| F-02 | P0 | Lint / Correctness | [widget-renderer.tsx:465-466](apps/app/src/components/generative-ui/widget-renderer.tsx#L465) | `setLoaded(false)` and `setHeight(0)` called synchronously inside `useLayoutEffect` body — same rule violation | CI lint gate fails | Store `loaded`/`height` as refs for the reset path, or batch by computing a single state object. Since these resets only happen when `html` changes, a combined reducer state (`{ loaded: bool, height: number }`) reset in a single `setState` call may satisfy the linter. Alternatively, `startTransition` wrapping won't help here — the real fix is avoiding direct setState in the effect body. | High |
+| F-03 | P1 | Lint / Style | [widget-renderer.tsx:431](apps/app/src/components/generative-ui/widget-renderer.tsx#L431) | `_description` renamed with underscore prefix to suppress unused-var, but ESLint still warns — the project's `@typescript-eslint/no-unused-vars` config doesn't honor the `_` prefix convention here | Warning remains in lint output | Simply omit `description` from the destructuring: `{ title, html }`. If the prop must remain in the TypeScript type for API compatibility, add `// eslint-disable-next-line @typescript-eslint/no-unused-vars` or configure `argsIgnorePattern: "^_"` in the ESLint config. | High |
+| F-04 | P2 | Correctness / DX | [layout.tsx:13](apps/app/src/app/layout.tsx#L13) & [globals.css:63](apps/app/src/app/globals.css#L63) | Next.js font variable `--font-plus-jakarta` is injected onto `<body>` but `globals.css` references the font via hardcoded string `'Plus Jakarta Sans'` in `--font-family`, not `var(--font-plus-jakarta)`. Next.js font optimization (self-hosting, preloading, CLS prevention) is wired up but the CSS never consumes it. | Font still loads (hardcoded name falls back to Google CDN or cached), but Next.js's optimized self-hosted font is unused — the whole point of migrating away from the `<link>` tag is lost. | In `globals.css` change `--font-family: 'Plus Jakarta Sans', ...` to `--font-family: var(--font-plus-jakarta), system-ui, sans-serif` | High |
+| ~~F-05~~ | ~~P2~~ | ~~Docs~~ | ~~CONTRIBUTING.md~~ | ~~RETRACTED~~ — `CopilotKit/OpenGenerativeUI` is the correct official repo slug. Links are accurate. | — | — | — |
+
+---
+
+## Testing Gaps
+- No tests added or modified; the two changed source files have no automated test coverage
+- No TypeScript build (`pnpm build`) was run to confirm type safety after prop rename
+
+## Open Questions
+- Should `react-hooks/set-state-in-effect` be disabled for specific lines as a short-term fix, or is there appetite to restructure the hooks? The `useLoadingPhrase` and `useLayoutEffect` cases have different ideal solutions.
+- Is `WidgetRendererProps` exported or used externally? If `description` is part of a public API contract (e.g. CopilotKit tool parameter schema), removing it from destructuring is safe but the prop type should remain for consumers.
+
+---
+
+<details>
+<summary><strong>Ask AI to Resolve These Issues</strong></summary>
+
+Copy and paste the prompt below into Claude, ChatGPT, Cursor, or any AI assistant. It includes full context so the AI can fix all remaining lint failures without additional back-and-forth.
+
+---
+
+````
+I need help fixing 3 remaining ESLint failures in a Next.js / React project.
+The branch is `fix/lint-errors-2026-03-18` on https://github.com/CopilotKit/OpenGenerativeUI.
+Running `pnpm lint` currently exits with 2 errors and 1 warning — all in one file:
+  apps/app/src/components/generative-ui/widget-renderer.tsx
+
+The ESLint config extends `eslint-config-next/core-web-vitals` and `eslint-config-next/typescript`,
+which pulls in `eslint-plugin-react-hooks@7.0.1`. That version introduced a new rule —
+`react-hooks/set-state-in-effect` — that flags any synchronous setState call made directly inside
+an effect body (useEffect or useLayoutEffect).
+
+─── FAILURE 1 (Error) — widget-renderer.tsx ~line 414 ───────────────────────
+
+The `useLoadingPhrase` hook manages a cycling loading message. When `active` flips from false → true
+it should reset to phrase index 0, then start an interval to cycle phrases every 1800ms.
+
+Current (broken) code:
+```tsx
+function useLoadingPhrase(active: boolean) {
+  const [index, setIndex] = useState(0);
+  const prevActiveRef = useRef<boolean | null>(null);
+
+  useEffect(() => {
+    if (active && !prevActiveRef.current) {
+      setIndex(0);   // ← lint error: setState inside effect body
+    }
+    prevActiveRef.current = active;
+
+    if (!active) return;
+    const interval = setInterval(() => {
+      setIndex((i) => (i + 1) % LOADING_PHRASES.length);
+    }, 1800);
+    return () => clearInterval(interval);
+  }, [active]);
+
+  return LOADING_PHRASES[index];
+}
+```
+
+Fix goal: eliminate the synchronous `setIndex(0)` call from inside the effect body while keeping
+the same observable behaviour (index resets to 0 when active starts, then cycles).
+
+─── FAILURE 2 (Error) — widget-renderer.tsx ~line 460 ───────────────────────
+
+The `WidgetRenderer` component writes HTML into a sandboxed iframe imperatively (to preserve iframe
+JS state across React re-renders). When `html` changes it resets `loaded` and `height` back to
+false/0 so the loading overlay re-appears.
+
+Current (broken) code:
+```tsx
+useLayoutEffect(() => {
+  if (!html || !iframeRef.current) return;
+  if (html === committedHtmlRef.current) return;
+  committedHtmlRef.current = html;
+  iframeRef.current.srcdoc = assembleDocument(html);
+  setLoaded(false);   // ← lint error: setState inside effect body
+  setHeight(0);       // ← lint error: setState inside effect body
+}, [html]);
+```
+
+State declarations (for context):
+```tsx
+const [height, setHeight] = useState(0);
+const [loaded, setLoaded] = useState(false);
+```
+
+Fix goal: eliminate synchronous setState calls from inside the useLayoutEffect body while keeping
+the reset-on-html-change behaviour. The iframe srcdoc write must stay synchronous (that's why
+useLayoutEffect is correct here). Consider combining loaded+height into a single reducer, or
+storing reset state in refs and deriving render values from them.
+
+─── FAILURE 3 (Warning) — widget-renderer.tsx ~line 431 ───────────────────────
+
+The `description` prop is accepted in the function signature but never used. A previous attempt
+renamed it to `_description` but the project's ESLint config does not have `argsIgnorePattern: "^_"`
+configured so the warning still fires.
+
+Current (broken) code:
+```tsx
+export function WidgetRenderer({ title, _description, html }: WidgetRendererProps) {
+```
+
+Fix goal: silence the unused-var warning. The simplest fix is to remove `description` / `_description`
+from the destructuring entirely (just use `{ title, html }`). The prop can remain in the
+`WidgetRendererProps` type for API compatibility — only the destructuring binding needs to change.
+
+─── Constraints ───────────────────────────────────────────────────────────────
+
+- Do NOT add eslint-disable comments as a workaround — fix the code properly.
+- Keep all existing observable behaviour identical (loading phrase cycling, iframe reload guard,
+  loaded/height reset on html change).
+- After your changes, `pnpm lint` must pass with 0 errors and 0 warnings.
+- Only edit `apps/app/src/components/generative-ui/widget-renderer.tsx`.
+````
+
+</details>
diff --git a/apps/app/src/app/api/copilotkit/route.ts b/apps/app/src/app/api/copilotkit/route.ts
index 45912d2..0690f64 100644
--- a/apps/app/src/app/api/copilotkit/route.ts
+++ b/apps/app/src/app/api/copilotkit/route.ts
@@ -32,6 +32,17 @@ const documentAgent = new LangGraphAgent({
   langsmithApiKey: process.env.LANGSMITH_API_KEY || "",
 });
 
+// Wire up MCP apps middleware for document agent
+documentAgent.use(
+  new MCPAppsMiddleware({
+    mcpServers: [{
+      type: "http",
+      url: process.env.MCP_SERVER_URL || "https://mcp.excalidraw.com",
+      serverId: "example_mcp_app",
+    }],
+  })
+);
+
 // Allow long-running agent + MCP tool calls
 export const maxDuration = 300;
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index cdee333..c5d4e0b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -44,6 +44,18 @@ importers:
       '@copilotkitnext/shared':
         specifier: next
         version: 1.54.0-next.6
+      '@tiptap/react':
+        specifier: ^3.20.4
+        version: 3.20.4(@floating-ui/dom@1.7.5)(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)(@types/react-dom@19.2.3(@types/react@19.2.10))(@types/react@19.2.10)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)
+      '@tiptap/starter-kit':
+        specifier: ^3.20.4
+        version: 3.20.4
+      diff:
+        specifier: ^8.0.3
+        version: 8.0.3
+      markdown-it:
+        specifier: ^14.1.1
+        version: 14.1.1
       next:
         specifier: 16.1.6
         version: 16.1.6(@babel/core@7.29.0)(@opentelemetry/api@1.9.0)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)
@@ -69,6 +81,12 @@ importers:
       '@tailwindcss/postcss':
         specifier: ^4
         version: 4.1.18
+      '@types/diff':
+        specifier: ^8.0.0
+        version: 8.0.0
+      '@types/markdown-it':
+        specifier: ^14.1.2
+        version: 14.1.2
       '@types/node':
         specifier: ^20
         version: 20.19.31
@@ -1429,6 +1447,9 @@ packages:
       react-redux:
         optional: true
 
+  '@remirror/core-constants@3.0.0':
+    resolution: {integrity: sha512-42aWfPrimMfDKDi4YegyS7x+/0tlzaqwPQCULLanv3DMIlu96KTJR0fM5isWX2UViOqlGnX6YFgqWepcX+XMNg==}
+
   '@repeaterjs/repeater@3.0.6':
     resolution: {integrity: sha512-Javneu5lsuhwNCryN+pXH93VPQ8g0dBX7wItHFgYiwQmzE1sVdg5tWHiOgHywzL2W21XQopa7IwIEnNbmeUJYA==}
 
@@ -1588,6 +1609,155 @@ packages:
   '@tanstack/virtual-core@3.13.18':
     resolution: {integrity: sha512-Mx86Hqu1k39icq2Zusq+Ey2J6dDWTjDvEv43PJtRCoEYTLyfaPnxIQ6iy7YAOK0NV/qOEmZQ/uCufrppZxTgcg==}
 
+  '@tiptap/core@3.20.4':
+    resolution: {integrity: sha512-3i/DG89TFY/b34T5P+j35UcjYuB5d3+9K8u6qID+iUqNPiza015HPIZLuPfE5elNwVdV3EXIoPo0LLeBLgXXAg==}
+    peerDependencies:
+      '@tiptap/pm': ^3.20.4
+
+  '@tiptap/extension-blockquote@3.20.4':
+    resolution: {integrity: sha512-9sskyyhYj2oKat//lyZVXCp9YrPt4oJAZnGHYWXS0xlskjsLElrfKKlM4vpbhGss3VrhQRoEGqWLnIaJYPF1zw==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extension-bold@3.20.4':
+    resolution: {integrity: sha512-Md7/mNAeJCY+VLJc8JRGI+8XkVPKiOGB1NgqQPdh3aYtxXQDChQOZoJEQl6TuudDxZ85bLZB67NjZlx3jo8/0g==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extension-bubble-menu@3.20.4':
+    resolution: {integrity: sha512-EXywPlI8wjPcAb8ozymgVhjtMjFrnhtoyNTy8ZcObdpUi5CdO9j892Y7aPbKe5hLhlDpvJk7rMfir4FFKEmfng==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+      '@tiptap/pm': ^3.20.4
+
+  '@tiptap/extension-bullet-list@3.20.4':
+    resolution: {integrity: sha512-1RTGrur1EKoxfnLZ3M6xeNj8GITAz74jH2DHGcjLsd2Xr7Q7BozGaIq6GkkvKguMwbI1zCOxTHFCpUETXAIQQA==}
+    peerDependencies:
+      '@tiptap/extension-list': ^3.20.4
+
+  '@tiptap/extension-code-block@3.20.4':
+    resolution: {integrity: sha512-Zlw3FrXTy01+o1yISeX/LC+iJeHA+ym602bMXGmtA6lyl7QSOSO7WExweJ6xeJGhbCjldwT5al6fkRAs8iGJZg==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+      '@tiptap/pm': ^3.20.4
+
+  '@tiptap/extension-code@3.20.4':
+    resolution: {integrity: sha512-7j8Hi964bH1SZ9oLdZC1fkqWz27mliSDV7M8lmL/M14+Qw42D/VOAKS4Aw9OCFtHMlTsjLR6qsoVxL8Lpkt6NA==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extension-document@3.20.4':
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+    peerDependencies:
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+  '@tiptap/extension-link@3.20.4':
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+    peerDependencies:
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+      '@tiptap/pm': ^3.20.4
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+  '@tiptap/extension-list-item@3.20.4':
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+    peerDependencies:
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+  '@tiptap/extension-list-keymap@3.20.4':
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+    peerDependencies:
+      '@tiptap/extension-list': ^3.20.4
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+  '@tiptap/extension-list@3.20.4':
+    resolution: {integrity: sha512-X+5plTKhOioNcQ4KsAFJJSb/3+zR8Xhdpow4HzXtoV1KcbdDey1fhZdpsfkbrzCL0s6/wAgwZuAchCK7HujurQ==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+      '@tiptap/pm': ^3.20.4
+
+  '@tiptap/extension-ordered-list@3.20.4':
+    resolution: {integrity: sha512-3budNL8BgBon3TcXZ4hjT0YpFvx1Ka3uSIECKDxHgES+OQcR+6cagxSb60gFEccf3Dr0PIwcVTY6g14lC1qKRQ==}
+    peerDependencies:
+      '@tiptap/extension-list': ^3.20.4
+
+  '@tiptap/extension-paragraph@3.20.4':
+    resolution: {integrity: sha512-lm6fOScWuZAF/Sfp97igUwFd3L1QHIVLAWP5NVdh0DTLrEIt4rMBmsww+yOpMQRhvz2uTgMbMXynrimhzi/QVw==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extension-strike@3.20.4':
+    resolution: {integrity: sha512-It1Px9uDGTsVqyyg6cy7DigLoenljpQwqdI0jssM7QclZrHnsrye9fZxBBiiuCzzV1305MxKgHvratkHwqmVNA==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extension-text@3.20.4':
+    resolution: {integrity: sha512-jchJcBZixDEO2J66Zx5dchsI2mA6IYsROqF8P1poxL4ienH7RVQRCTsBNnSfIeOtREKKWeOU/tEs5fcpvvGwIQ==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extension-underline@3.20.4':
+    resolution: {integrity: sha512-0OjMc3FDujX16G+jhvqcY/mLot8SrNtDu8ggUwNLAfiI/QIvMVgk7giFD71DATC/4Nb8i/iwAEegTD8MxBIXCg==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+
+  '@tiptap/extensions@3.20.4':
+    resolution: {integrity: sha512-8p6hVT65DjuQjtEdlH6ewX9SOJHlVQAOee3sWIJQmeJNRnZNvqPIBLleebUqDiljNTpxBv6s6QWkSTKgf3btwg==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+      '@tiptap/pm': ^3.20.4
+
+  '@tiptap/pm@3.20.4':
+    resolution: {integrity: sha512-rCHYSBToilBEuI6PtjziHDdRkABH/XqwJ7dG4Amn/SD3yGiZKYCiEApQlTUS2zZeo8DsLeuqqqB4vEOeD4OEPg==}
+
+  '@tiptap/react@3.20.4':
+    resolution: {integrity: sha512-1B8iWsHWwb5TeyVaUs8BRPzwWo4PsLQcl03urHaz0zTJ8DauopqvxzV3+lem1OkzRHn7wnrapDvwmIGoROCaQw==}
+    peerDependencies:
+      '@tiptap/core': ^3.20.4
+      '@tiptap/pm': ^3.20.4
+      '@types/react': ^17.0.0 || ^18.0.0 || ^19.0.0
+      '@types/react-dom': ^17.0.0 || ^18.0.0 || ^19.0.0
+      react: ^17.0.0 || ^18.0.0 || ^19.0.0
+      react-dom: ^17.0.0 || ^18.0.0 || ^19.0.0
+
+  '@tiptap/starter-kit@3.20.4':
+    resolution: {integrity: sha512-WcyK6hsTl8eBsQhQ+d9Sq8fYZKOYdL+D45MyH3hz583elXqJlW3h3JPFYb0o87gddGxn8Mm57OA/gA1zEdeDMw==}
+
   '@tybys/wasm-util@0.10.1':
     resolution: {integrity: sha512-9tTaPJLSiejZKx+Bmog4uSubteqTvFrVrURwkmHixBo0G4seD0zUxp98E1DzUBJxLQ3NPwXrGKDiVjwx/DpPsg==}
 
@@ -1687,6 +1857,10 @@ packages:
   '@types/debug@4.1.12':
     resolution: {integrity: sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ==}
 
+  '@types/diff@8.0.0':
+    resolution: {integrity: sha512-o7jqJM04gfaYrdCecCVMbZhNdG6T1MHg/oQoRFdERLV+4d+V7FijhiEAbFu0Usww84Yijk9yH58U4Jk4HbtzZw==}
+    deprecated: This is a stub types definition. diff provides its own type definitions, so you do not need this installed.
+
   '@types/estree-jsx@1.0.5':
     resolution: {integrity: sha512-52CcUVNFyfb1A2ALocQw/Dd1BQFNmSdkuC3BkZ6iqhdMfQz7JWOFRuJFloOzjk+6WijU56m9oKXFAXc7o3Towg==}
 
@@ -1711,12 +1885,21 @@ packages:
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     resolution: {integrity: sha512-trgaNyfU+Xh2Tc+ABIb44a5AYUpicB3uwirOioeOkNPPbmgRNtcWyDeeFRzjPZENO9Vq8gvVqfhaaXWLlevVwg==}
 
+  '@types/linkify-it@5.0.0':
+    resolution: {integrity: sha512-sVDA58zAw4eWAffKOaQH5/5j3XeayukzDk+ewSsnv3p4yJEZHCCzMDiZM8e0OUrRvmpGZ85jf4yDHkHsgBNr9Q==}
+
+  '@types/markdown-it@14.1.2':
+    resolution: {integrity: sha512-promo4eFwuiW+TfGxhi+0x3czqTYJkG8qB17ZUJiVF10Xm7NLVRSLUsfRTU/6h1e24VvRnXCx+hG7li58lkzog==}
+
   '@types/mdast@3.0.15':
     resolution: {integrity: sha512-LnwD+mUEfxWMa1QpDraczIn6k0Ee3SMicuYSSzS6ZYl2gKS09EClnJYGd8Du6rfc5r/GZEk5o1mRb8TaTj03sQ==}
 
   '@types/mdast@4.0.4':
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+  '@types/mdurl@2.0.0':
+    resolution: {integrity: sha512-RGdgjQUZba5p6QEFAVx2OGb8rQDL/cPRG7GiedRzMcJ1tYnUANBncjbSB1NRGwbvjcPeikRABz2nshyPk1bhWg==}
+
   '@types/ms@2.1.0':
     resolution: {integrity: sha512-GsCCIZDE/p3i96vtEqx+7dBUGXrc7zeSK3wwPHIaRThS+9OhWIXRqzs4d6k1SVU8g91DrNRWxWUGhp5KXQb2VA==}
 
@@ -2363,6 +2546,9 @@ packages:
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     hasBin: true
 
+  crelt@1.0.6:
+    resolution: {integrity: sha512-VQ2MBenTq1fWZUH9DJNGti7kKv6EeAuYr3cLwxUWhIu1baTaXh4Ib5W2CqHVqib4/MqbYGJqiL3Zb8GJZr3l4g==}
+
   cross-inspect@1.0.1:
     resolution: {integrity: sha512-Pcw1JTvZLSJH83iiGWt6fRcT+BjZlCDRVwYLbUcHzv/CRpB7r0MlSrGbIyQvVSNyGnbt7G4AXuyCiDR3POvZ1A==}
     engines: {node: '>=16.0.0'}
@@ -2655,6 +2841,10 @@ packages:
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     engines: {node: '>=0.3.1'}
 
+  diff@8.0.3:
+    resolution: {integrity: sha512-qejHi7bcSD4hQAZE0tNAawRK1ZtafHDmMTMkrrIGgSLl7hTnQHmKCeB45xAcbfTqK2zowkM3j3bHt/4b/ARbYQ==}
+    engines: {node: '>=0.3.1'}
+
   doctrine@2.1.0:
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     engines: {node: '>=0.10.0'}
@@ -2947,6 +3137,10 @@ packages:
   fast-deep-equal@3.1.3:
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+  fast-equals@5.4.0:
+    resolution: {integrity: sha512-jt2DW/aNFNwke7AUd+Z+e6pz39KO5rzdbbFCg2sGafS4mk13MI7Z8O5z9cADNn5lhGODIgLwug6TZO2ctf7kcw==}
+    engines: {node: '>=6.0.0'}
+
   fast-glob@3.3.1:
     resolution: {integrity: sha512-kNFPyjhh5cKjrUltxs+wFx+ZkbRaxxmZ+X0ZU31SOsxCEtP9VPgtq2teZw1DebupL5GmDaNQ6yKMMVcM41iqDg==}
     engines: {node: '>=8.6.0'}
@@ -3729,6 +3923,9 @@ packages:
   linkify-it@5.0.0:
     resolution: {integrity: sha512-5aHCbzQRADcdP+ATqnDuhhJ/MRIqDkZX5pyjFHRRysS8vZ5AbqGEoFIb6pYHPZ+L/OC2Lc+xT8uHVVR5CAK/wQ==}
 
+  linkifyjs@4.3.2:
+    resolution: {integrity: sha512-NT1CJtq3hHIreOianA8aSXn6Cw0JzYOuDQbOrSPe7gqFnCpKP++MQe3ODgO3oh2GJFORkAAdqredOa60z63GbA==}
+
   lit-element@4.2.2:
     resolution: {integrity: sha512-aFKhNToWxoyhkNDmWZwEva2SlQia+jfG0fjIWV//YeTaWrVnOxD89dPKfigCUspXFmjzOEUQpOkejH5Ly6sG0w==}
 
@@ -4282,6 +4479,9 @@ packages:
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     engines: {node: '>= 0.8.0'}
 
+  orderedmap@2.1.1:
+    resolution: {integrity: sha512-TvAWxi0nDe1j/rtMcWcIj94+Ffe6n7zhow33h40SKxmsmozs6dz/e+EajymfoFcHd7sxNn8yHM8839uixMOV6g==}
+
   own-keys@1.0.1:
     resolution: {integrity: sha512-qFOyK5PjiWZd+QQIh+1jhdb9LpxTF0qs7Pm8o5QHYZ0M3vKqSqzsZaEB6oWlxZ+q2sJBMI/Ktgd2N5ZwQoRHfg==}
     engines: {node: '>= 0.4'}
@@ -4503,6 +4703,64 @@ packages:
   property-information@7.1.0:
     resolution: {integrity: sha512-TwEZ+X+yCJmYfL7TPUOcvBZ4QfoT5YenQiJuX//0th53DE6w0xxLEtfK3iyryQFddXuvkIk51EEgrJQ0WJkOmQ==}
 
+  prosemirror-changeset@2.4.0:
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+
+  prosemirror-collab@1.3.1:
+    resolution: {integrity: sha512-4SnynYR9TTYaQVXd/ieUvsVV4PDMBzrq2xPUWutHivDuOshZXqQ5rGbZM84HEaXKbLdItse7weMGOUdDVcLKEQ==}
+
+  prosemirror-commands@1.7.1:
+    resolution: {integrity: sha512-rT7qZnQtx5c0/y/KlYaGvtG411S97UaL6gdp6RIZ23DLHanMYLyfGBV5DtSnZdthQql7W+lEVbpSfwtO8T+L2w==}
+
+  prosemirror-dropcursor@1.8.2:
+    resolution: {integrity: sha512-CCk6Gyx9+Tt2sbYk5NK0nB1ukHi2ryaRgadV/LvyNuO3ena1payM2z6Cg0vO1ebK8cxbzo41ku2DE5Axj1Zuiw==}
+
+  prosemirror-gapcursor@1.4.1:
+    resolution: {integrity: sha512-pMdYaEnjNMSwl11yjEGtgTmLkR08m/Vl+Jj443167p9eB3HVQKhYCc4gmHVDsLPODfZfjr/MmirsdyZziXbQKw==}
+
+  prosemirror-history@1.5.0:
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+
+  prosemirror-inputrules@1.5.1:
+    resolution: {integrity: sha512-7wj4uMjKaXWAQ1CDgxNzNtR9AlsuwzHfdFH1ygEHA2KHF2DOEaXl1CJfNPAKCg9qNEh4rum975QLaCiQPyY6Fw==}
+
+  prosemirror-keymap@1.2.3:
+    resolution: {integrity: sha512-4HucRlpiLd1IPQQXNqeo81BGtkY8Ai5smHhKW9jjPKRc2wQIxksg7Hl1tTI2IfT2B/LgX6bfYvXxEpJl7aKYKw==}
+
+  prosemirror-markdown@1.13.4:
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+
+  prosemirror-menu@1.3.0:
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+
+  prosemirror-model@1.25.4:
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+
+  prosemirror-schema-basic@1.2.4:
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+
+  prosemirror-schema-list@1.5.1:
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+
+  prosemirror-state@1.4.4:
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+
+  prosemirror-tables@1.8.5:
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+
+  prosemirror-trailing-node@3.0.0:
+    resolution: {integrity: sha512-xiun5/3q0w5eRnGYfNlW1uU9W6x5MoFKWwq/0TIRgt09lv7Hcser2QYV8t4muXbEr+Fwo0geYn79Xs4GKywrRQ==}
+    peerDependencies:
+      prosemirror-model: ^1.22.1
+      prosemirror-state: ^1.4.2
+      prosemirror-view: ^1.33.8
+
+  prosemirror-transform@1.11.0:
+    resolution: {integrity: sha512-4I7Ce4KpygXb9bkiPS3hTEk4dSHorfRw8uI0pE8IhxlK2GXsqv5tIA7JUSxtSu7u8APVOTtbUBxTmnHIxVkIJw==}
+
+  prosemirror-view@1.41.7:
+    resolution: {integrity: sha512-jUwKNCEIGiqdvhlS91/2QAg21e4dfU5bH2iwmSDQeosXJgKF7smG0YSplOWK0cjSNgIqXe7VXqo7EIfUFJdt3w==}
+
   proxy-addr@2.0.7:
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     engines: {node: '>= 0.10'}
@@ -4786,6 +5044,9 @@ packages:
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+  rope-sequence@1.3.4:
+    resolution: {integrity: sha512-UT5EDe2cu2E/6O4igUr5PSFs23nvvukicWHx6GnOPlHAiiYbzNuCRQCuiUdHJQcqKalLKlrYJnjY0ySGsXNQXQ==}
+
   roughjs@4.6.6:
     resolution: {integrity: sha512-ZUz/69+SYpFN/g/lUlo2FXcIjRkSu3nDarreVdGGndHEBJ6cXPdKguS8JGxwj5HA5xIbVKSmLgr5b3AWxtRfvQ==}
 
@@ -5446,6 +5707,9 @@ packages:
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+  w3c-keyname@2.2.8:
+    resolution: {integrity: sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==}
+
   web-namespaces@2.0.1:
     resolution: {integrity: sha512-bKr1DkiNa2krS7qxNtdrtHAmzuYGFQLiQ13TsorsdT6ULTkPLKuu5+GsFpDlg6JFjUTwX2DyhMPG2be8uPrqsQ==}
 
@@ -7125,6 +7389,8 @@ snapshots:
       react: 19.2.4
       react-redux: 9.2.0(@types/react@19.2.10)(react@19.2.4)(redux@5.0.1)
 
+  '@remirror/core-constants@3.0.0': {}
+
   '@repeaterjs/repeater@3.0.6': {}
 
   '@rtsao/scc@1.1.0': {}
@@ -7285,6 +7551,183 @@ snapshots:
 
   '@tanstack/virtual-core@3.13.18': {}
 
+  '@tiptap/core@3.20.4(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@tiptap/pm': 3.20.4
+
+  '@tiptap/extension-blockquote@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-bold@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-bubble-menu@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@floating-ui/dom': 1.7.5
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+    optional: true
+
+  '@tiptap/extension-bullet-list@3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/extension-list': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-code-block@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+
+  '@tiptap/extension-code@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-document@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-dropcursor@3.20.4(@tiptap/extensions@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/extensions': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-floating-menu@3.20.4(@floating-ui/dom@1.7.5)(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@floating-ui/dom': 1.7.5
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+    optional: true
+
+  '@tiptap/extension-gapcursor@3.20.4(@tiptap/extensions@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/extensions': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-hard-break@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-heading@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-horizontal-rule@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+
+  '@tiptap/extension-italic@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-link@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+      linkifyjs: 4.3.2
+
+  '@tiptap/extension-list-item@3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/extension-list': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-list-keymap@3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/extension-list': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+
+  '@tiptap/extension-ordered-list@3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/extension-list': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-paragraph@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-strike@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-text@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extension-underline@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+
+  '@tiptap/extensions@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+
+  '@tiptap/pm@3.20.4':
+    dependencies:
+      prosemirror-changeset: 2.4.0
+      prosemirror-collab: 1.3.1
+      prosemirror-commands: 1.7.1
+      prosemirror-dropcursor: 1.8.2
+      prosemirror-gapcursor: 1.4.1
+      prosemirror-history: 1.5.0
+      prosemirror-inputrules: 1.5.1
+      prosemirror-keymap: 1.2.3
+      prosemirror-markdown: 1.13.4
+      prosemirror-menu: 1.3.0
+      prosemirror-model: 1.25.4
+      prosemirror-schema-basic: 1.2.4
+      prosemirror-schema-list: 1.5.1
+      prosemirror-state: 1.4.4
+      prosemirror-tables: 1.8.5
+      prosemirror-trailing-node: 3.0.0(prosemirror-model@1.25.4)(prosemirror-state@1.4.4)(prosemirror-view@1.41.7)
+      prosemirror-transform: 1.11.0
+      prosemirror-view: 1.41.7
+
+  '@tiptap/react@3.20.4(@floating-ui/dom@1.7.5)(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)(@types/react-dom@19.2.3(@types/react@19.2.10))(@types/react@19.2.10)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+      '@types/react': 19.2.10
+      '@types/react-dom': 19.2.3(@types/react@19.2.10)
+      '@types/use-sync-external-store': 0.0.6
+      fast-equals: 5.4.0
+      react: 19.2.4
+      react-dom: 19.2.4(react@19.2.4)
+      use-sync-external-store: 1.6.0(react@19.2.4)
+    optionalDependencies:
+      '@tiptap/extension-bubble-menu': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+      '@tiptap/extension-floating-menu': 3.20.4(@floating-ui/dom@1.7.5)(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+    transitivePeerDependencies:
+      - '@floating-ui/dom'
+
+  '@tiptap/starter-kit@3.20.4':
+    dependencies:
+      '@tiptap/core': 3.20.4(@tiptap/pm@3.20.4)
+      '@tiptap/extension-blockquote': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-bold': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-bullet-list': 3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))
+      '@tiptap/extension-code': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-code-block': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+      '@tiptap/extension-document': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-dropcursor': 3.20.4(@tiptap/extensions@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))
+      '@tiptap/extension-gapcursor': 3.20.4(@tiptap/extensions@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))
+      '@tiptap/extension-hard-break': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-heading': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-horizontal-rule': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+      '@tiptap/extension-italic': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-link': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+      '@tiptap/extension-list': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+      '@tiptap/extension-list-item': 3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))
+      '@tiptap/extension-list-keymap': 3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))
+      '@tiptap/extension-ordered-list': 3.20.4(@tiptap/extension-list@3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4))
+      '@tiptap/extension-paragraph': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-strike': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-text': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extension-underline': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))
+      '@tiptap/extensions': 3.20.4(@tiptap/core@3.20.4(@tiptap/pm@3.20.4))(@tiptap/pm@3.20.4)
+      '@tiptap/pm': 3.20.4
+
   '@tybys/wasm-util@0.10.1':
     dependencies:
       tslib: 2.8.1
@@ -7411,6 +7854,10 @@ snapshots:
     dependencies:
       '@types/ms': 2.1.0
 
+  '@types/diff@8.0.0':
+    dependencies:
+      diff: 8.0.3
+
   '@types/estree-jsx@1.0.5':
     dependencies:
       '@types/estree': 1.0.8
@@ -7433,6 +7880,13 @@ snapshots:
 
   '@types/katex@0.16.8': {}
 
+  '@types/linkify-it@5.0.0': {}
+
+  '@types/markdown-it@14.1.2':
+    dependencies:
+      '@types/linkify-it': 5.0.0
+      '@types/mdurl': 2.0.0
+
   '@types/mdast@3.0.15':
     dependencies:
       '@types/unist': 2.0.11
@@ -7441,6 +7895,8 @@ snapshots:
     dependencies:
       '@types/unist': 3.0.3
 
+  '@types/mdurl@2.0.0': {}
+
   '@types/ms@2.1.0': {}
 
   '@types/node-fetch@2.6.13':
@@ -8125,6 +8581,8 @@ snapshots:
       - babel-plugin-macros
       - supports-color
 
+  crelt@1.0.6: {}
+
   cross-inspect@1.0.1:
     dependencies:
       tslib: 2.8.1
@@ -8414,6 +8872,8 @@ snapshots:
 
   diff@5.2.2: {}
 
+  diff@8.0.3: {}
+
   doctrine@2.1.0:
     dependencies:
       esutils: 2.0.3
@@ -8931,6 +9391,8 @@ snapshots:
 
   fast-deep-equal@3.1.3: {}
 
+  fast-equals@5.4.0: {}
+
   fast-glob@3.3.1:
     dependencies:
       '@nodelib/fs.stat': 2.0.5
@@ -9744,6 +10206,8 @@ snapshots:
     dependencies:
       uc.micro: 2.1.0
 
+  linkifyjs@4.3.2: {}
+
   lit-element@4.2.2:
     dependencies:
       '@lit-labs/ssr-dom-shim': 1.5.1
@@ -10648,6 +11112,8 @@ snapshots:
       type-check: 0.4.0
       word-wrap: 1.2.5
 
+  orderedmap@2.1.1: {}
+
   own-keys@1.0.1:
     dependencies:
       get-intrinsic: 1.3.0
@@ -10884,6 +11350,109 @@ snapshots:
 
   property-information@7.1.0: {}
 
+  prosemirror-changeset@2.4.0:
+    dependencies:
+      prosemirror-transform: 1.11.0
+
+  prosemirror-collab@1.3.1:
+    dependencies:
+      prosemirror-state: 1.4.4
+
+  prosemirror-commands@1.7.1:
+    dependencies:
+      prosemirror-model: 1.25.4
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+
+  prosemirror-dropcursor@1.8.2:
+    dependencies:
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+      prosemirror-view: 1.41.7
+
+  prosemirror-gapcursor@1.4.1:
+    dependencies:
+      prosemirror-keymap: 1.2.3
+      prosemirror-model: 1.25.4
+      prosemirror-state: 1.4.4
+      prosemirror-view: 1.41.7
+
+  prosemirror-history@1.5.0:
+    dependencies:
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+      prosemirror-view: 1.41.7
+      rope-sequence: 1.3.4
+
+  prosemirror-inputrules@1.5.1:
+    dependencies:
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+
+  prosemirror-keymap@1.2.3:
+    dependencies:
+      prosemirror-state: 1.4.4
+      w3c-keyname: 2.2.8
+
+  prosemirror-markdown@1.13.4:
+    dependencies:
+      '@types/markdown-it': 14.1.2
+      markdown-it: 14.1.1
+      prosemirror-model: 1.25.4
+
+  prosemirror-menu@1.3.0:
+    dependencies:
+      crelt: 1.0.6
+      prosemirror-commands: 1.7.1
+      prosemirror-history: 1.5.0
+      prosemirror-state: 1.4.4
+
+  prosemirror-model@1.25.4:
+    dependencies:
+      orderedmap: 2.1.1
+
+  prosemirror-schema-basic@1.2.4:
+    dependencies:
+      prosemirror-model: 1.25.4
+
+  prosemirror-schema-list@1.5.1:
+    dependencies:
+      prosemirror-model: 1.25.4
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+
+  prosemirror-state@1.4.4:
+    dependencies:
+      prosemirror-model: 1.25.4
+      prosemirror-transform: 1.11.0
+      prosemirror-view: 1.41.7
+
+  prosemirror-tables@1.8.5:
+    dependencies:
+      prosemirror-keymap: 1.2.3
+      prosemirror-model: 1.25.4
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+      prosemirror-view: 1.41.7
+
+  prosemirror-trailing-node@3.0.0(prosemirror-model@1.25.4)(prosemirror-state@1.4.4)(prosemirror-view@1.41.7):
+    dependencies:
+      '@remirror/core-constants': 3.0.0
+      escape-string-regexp: 4.0.0
+      prosemirror-model: 1.25.4
+      prosemirror-state: 1.4.4
+      prosemirror-view: 1.41.7
+
+  prosemirror-transform@1.11.0:
+    dependencies:
+      prosemirror-model: 1.25.4
+
+  prosemirror-view@1.41.7:
+    dependencies:
+      prosemirror-model: 1.25.4
+      prosemirror-state: 1.4.4
+      prosemirror-transform: 1.11.0
+
   proxy-addr@2.0.7:
     dependencies:
       forwarded: 0.2.0
@@ -11259,6 +11828,8 @@ snapshots:
 
   robust-predicates@3.0.2: {}
 
+  rope-sequence@1.3.4: {}
+
   roughjs@4.6.6:
     dependencies:
       hachure-fill: 0.5.2
@@ -12095,6 +12666,8 @@ snapshots:
 
   vscode-uri@3.0.8: {}
 
+  w3c-keyname@2.2.8: {}
+
   web-namespaces@2.0.1: {}
 
   web-streams-polyfill@4.0.0-beta.3: {}

From 248b6ac591824706e368274e218b239ff291a9c8 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:16:14 -0700
Subject: [PATCH 10/28] improve: add visualization instructions to document
 agent system prompt

- Guide agent to create visualizations with clear, descriptive labels
- Include examples for storyboards, flowcharts, and diagrams
- Ensure all elements have meaningful text explanations
---
 apps/agent/document_agent.py | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/apps/agent/document_agent.py b/apps/agent/document_agent.py
index a842047..a374fe3 100644
--- a/apps/agent/document_agent.py
+++ b/apps/agent/document_agent.py
@@ -44,19 +44,26 @@ async def chat_node(state: AgentState, config: Optional[RunnableConfig] = None):
     """Main chat node that handles document editing."""
 
     system_prompt = f"""
-You are a helpful assistant for writing and editing documents.
-Your role is to help users create, modify, and improve their documents.
+You are a helpful assistant for writing and editing documents, and creating visualizations.
+Your role is to help users create, modify, and improve their documents, and visualize concepts.
 
 To write or edit the document, you MUST use the write_document tool.
 Always write the complete document, even when making small changes.
 After writing, briefly summarize the changes you made (1-2 sentences max).
 
+When creating visualizations (diagrams, flowcharts, storyboards, etc.):
+- Use the a2ui tool to generate visual content
+- Include clear, descriptive labels for all elements (nodes, boxes, ovals, etc.)
+- For storyboards/timelines: label each node with key events or scenes
+- For diagrams: ensure each shape has meaningful text that explains what it represents
+
 Current document state:
 ----
 {state.get('document', '(empty)')}
 ----
 
 Focus on the user's request and make the changes they asked for.
+When asked to visualize or diagram something, create it with clear labels.
 """
 
     if config is None:

From b898857be0d471217d04c314c75f7bdb0fb1a230 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:22:06 -0700
Subject: [PATCH 11/28] feat: integrate excalidraw diagram skill into document
 agent

- Add detailed instructions for professional diagram creation
- Include color grammar, typography rules, and camera reveal technique
- Guide agent to call Excalidraw:read_me() and plan diagrams properly
- Ensure labels use fontSize 16-18 with proper contrast
---
 apps/agent/document_agent.py | 40 ++++++++++++++++++++++++++++--------
 1 file changed, 32 insertions(+), 8 deletions(-)

diff --git a/apps/agent/document_agent.py b/apps/agent/document_agent.py
index a374fe3..f8c6a16 100644
--- a/apps/agent/document_agent.py
+++ b/apps/agent/document_agent.py
@@ -44,18 +44,42 @@ async def chat_node(state: AgentState, config: Optional[RunnableConfig] = None):
     """Main chat node that handles document editing."""
 
     system_prompt = f"""
-You are a helpful assistant for writing and editing documents, and creating visualizations.
-Your role is to help users create, modify, and improve their documents, and visualize concepts.
+You are a helpful assistant for writing and editing documents, and creating professional visualizations.
+Your role is to help users create, modify, and improve their documents, and visualize concepts using Excalidraw.
 
+## Writing & Editing Documents
 To write or edit the document, you MUST use the write_document tool.
 Always write the complete document, even when making small changes.
 After writing, briefly summarize the changes you made (1-2 sentences max).
 
-When creating visualizations (diagrams, flowcharts, storyboards, etc.):
-- Use the a2ui tool to generate visual content
-- Include clear, descriptive labels for all elements (nodes, boxes, ovals, etc.)
-- For storyboards/timelines: label each node with key events or scenes
-- For diagrams: ensure each shape has meaningful text that explains what it represents
+## Creating Excalidraw Diagrams
+When asked to diagram, visualize, map, chart, illustrate, or draw anything:
+
+### CRITICAL: Always follow these steps in order:
+1. Call `Excalidraw:read_me()` FIRST to get the color palette, camera sizes, and element syntax
+2. Plan the diagram structure: identify layers/zones, assign colors consistently, plan camera positions (3-6 minimum)
+3. Create diagram with proper structure:
+   - Start with a `cameraUpdate` element (always first)
+   - Use multiple camera positions throughout for progressive reveal animation
+   - Use proper 4:3 aspect ratios: 400x300, 600x450, 800x600, 1200x900
+   - Group elements per section: zone background → zone label → nodes → arrows
+   - Use `label` property directly on shapes (not separate text elements)
+   - Ensure minimum font size of 16 for all labels
+4. Finish with a wide final `cameraUpdate` showing the complete diagram
+
+### Color Grammar (be consistent):
+- UI/Frontend: fill #dbe4ff, stroke #4a9eed
+- Logic/Agent: fill #e5dbff, stroke #8b5cf6
+- Data/Storage: fill #d3f9d8, stroke #22c55e
+- External/API: fill #ffd8a8, stroke #f59e0b
+- Error/Alert: fill #ffc9c9, stroke #ef4444
+- Node shapes: use pastel fills like #a5d8ff, #b2f2bb, #d0bfff, #ffd8a8
+
+### Typography Rules:
+- Title: fontSize 26-28
+- Shape labels: fontSize 16-18 (NEVER below 14)
+- Use strokeColor: #1e1e1e for dark text
+- NEVER use light text on white (minimum color: #757575)
 
 Current document state:
 ----
@@ -63,7 +87,7 @@ async def chat_node(state: AgentState, config: Optional[RunnableConfig] = None):
 ----
 
 Focus on the user's request and make the changes they asked for.
-When asked to visualize or diagram something, create it with clear labels.
+When asked to visualize or diagram something, create professional Excalidraw diagrams with clear labels and smooth animations.
 """
 
     if config is None:

From 4d7eb0e78778a67b338bcf1a1b7c44497ebbf8c2 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:43:18 -0700
Subject: [PATCH 12/28] feat: merge document_agent into sample_agent for
 unified canvas experience

- Add document state field to AgentState in src/todos.py
- Create new src/document.py with write_document tool and HITL confirmation
- Update main.py to include document tools and enable predictive state streaming
- Set config metadata for copilotkit:emit-intermediate-state for live document editing
- Remove separate document_agent from langgraph.json and route.ts
- Update canvas page to use agentId='default' instead of 'document_agent'
- Delete document_agent.py (functionality now in main agent)

The canvas editor now uses the flagship gpt-5.4-2026-03-05 model with all skill files
loaded from the skills/ directory, providing better diagram generation with labeled
elements and professional visualizations.
---
 apps/agent/document_agent.py             | 182 -----------------------
 apps/agent/langgraph.json                |   3 +-
 apps/agent/main.py                       |  20 ++-
 apps/agent/src/document.py               |  34 +++++
 apps/agent/src/todos.py                  |   3 +-
 apps/app/src/app/api/copilotkit/route.ts |  21 +--
 apps/app/src/app/canvas/page.tsx         |  10 +-
 7 files changed, 61 insertions(+), 212 deletions(-)
 delete mode 100644 apps/agent/document_agent.py
 create mode 100644 apps/agent/src/document.py

diff --git a/apps/agent/document_agent.py b/apps/agent/document_agent.py
deleted file mode 100644
index f8c6a16..0000000
--- a/apps/agent/document_agent.py
+++ /dev/null
@@ -1,182 +0,0 @@
-"""
-Document editing agent with predictive state streaming.
-Demonstrates real-time markdown document editing with diffs.
-"""
-
-import uuid
-from typing import List, Any, Optional
-import os
-
-from langchain_core.runnables import RunnableConfig
-from langchain_core.messages import SystemMessage
-from langchain_core.tools import tool
-from langgraph.graph import StateGraph, END, START
-from langgraph.types import Command
-from langgraph.graph import MessagesState
-from langgraph.checkpoint.memory import MemorySaver
-from langchain_openai import ChatOpenAI
-
-
-@tool
-def write_document(document: str):
-    """
-    Write or update a document. Use markdown formatting.
-    Format the document with headings, lists, code blocks, etc.
-    Do not use italic or strike-through formatting - these are reserved for diffs.
-    Write the complete document, even when making small edits.
-    Keep document changes minimal - don't rewrite everything.
-    """
-    return document
-
-
-class AgentState(MessagesState):
-    """State for the document editing agent."""
-    document: Optional[str] = None
-    tools: List[Any]
-
-
-async def start_node(state: AgentState, config: RunnableConfig):
-    """Entry point for the agent."""
-    return Command(goto="chat_node")
-
-
-async def chat_node(state: AgentState, config: Optional[RunnableConfig] = None):
-    """Main chat node that handles document editing."""
-
-    system_prompt = f"""
-You are a helpful assistant for writing and editing documents, and creating professional visualizations.
-Your role is to help users create, modify, and improve their documents, and visualize concepts using Excalidraw.
-
-## Writing & Editing Documents
-To write or edit the document, you MUST use the write_document tool.
-Always write the complete document, even when making small changes.
-After writing, briefly summarize the changes you made (1-2 sentences max).
-
-## Creating Excalidraw Diagrams
-When asked to diagram, visualize, map, chart, illustrate, or draw anything:
-
-### CRITICAL: Always follow these steps in order:
-1. Call `Excalidraw:read_me()` FIRST to get the color palette, camera sizes, and element syntax
-2. Plan the diagram structure: identify layers/zones, assign colors consistently, plan camera positions (3-6 minimum)
-3. Create diagram with proper structure:
-   - Start with a `cameraUpdate` element (always first)
-   - Use multiple camera positions throughout for progressive reveal animation
-   - Use proper 4:3 aspect ratios: 400x300, 600x450, 800x600, 1200x900
-   - Group elements per section: zone background → zone label → nodes → arrows
-   - Use `label` property directly on shapes (not separate text elements)
-   - Ensure minimum font size of 16 for all labels
-4. Finish with a wide final `cameraUpdate` showing the complete diagram
-
-### Color Grammar (be consistent):
-- UI/Frontend: fill #dbe4ff, stroke #4a9eed
-- Logic/Agent: fill #e5dbff, stroke #8b5cf6
-- Data/Storage: fill #d3f9d8, stroke #22c55e
-- External/API: fill #ffd8a8, stroke #f59e0b
-- Error/Alert: fill #ffc9c9, stroke #ef4444
-- Node shapes: use pastel fills like #a5d8ff, #b2f2bb, #d0bfff, #ffd8a8
-
-### Typography Rules:
-- Title: fontSize 26-28
-- Shape labels: fontSize 16-18 (NEVER below 14)
-- Use strokeColor: #1e1e1e for dark text
-- NEVER use light text on white (minimum color: #757575)
-
-Current document state:
-----
-{state.get('document', '(empty)')}
-----
-
-Focus on the user's request and make the changes they asked for.
-When asked to visualize or diagram something, create professional Excalidraw diagrams with clear labels and smooth animations.
-"""
-
-    if config is None:
-        config = RunnableConfig(recursion_limit=25)
-
-    # Enable predictive state streaming for the write_document tool
-    config["metadata"]["predict_state"] = [
-        {
-            "state_key": "document",
-            "tool": "write_document",
-            "tool_argument": "document",
-        }
-    ]
-
-    model = ChatOpenAI(model="gpt-4.1-mini")
-    model_with_tools = model.bind_tools(
-        [*state.get("tools", []), write_document],
-        parallel_tool_calls=False,
-    )
-
-    response = await model_with_tools.ainvoke(
-        [SystemMessage(content=system_prompt), *state["messages"]], config
-    )
-
-    messages = state["messages"] + [response]
-
-    # Extract tool calls
-    if hasattr(response, "tool_calls") and response.tool_calls:
-        tool_call = response.tool_calls[0]
-
-        if isinstance(tool_call, dict):
-            tool_call_id = tool_call["id"]
-            tool_call_name = tool_call["name"]
-            tool_call_args = tool_call["args"]
-        else:
-            tool_call_id = tool_call.id
-            tool_call_name = tool_call.name
-            tool_call_args = tool_call.args
-
-        if tool_call_name == "write_document":
-            # Add tool response message
-            tool_response = {
-                "role": "tool",
-                "content": "Document written.",
-                "tool_call_id": tool_call_id,
-            }
-
-            # Create confirmation tool call for human-in-the-loop
-            confirm_tool_call = {
-                "role": "assistant",
-                "content": "",
-                "tool_calls": [
-                    {
-                        "id": str(uuid.uuid4()),
-                        "function": {
-                            "name": "write_document",
-                            "arguments": '{"document": ""}',
-                        },
-                    }
-                ],
-            }
-
-            messages = messages + [tool_response, confirm_tool_call]
-
-            return Command(
-                goto=END,
-                update={
-                    "messages": messages,
-                    "document": tool_call_args["document"],
-                },
-            )
-
-    return Command(goto=END, update={"messages": messages})
-
-
-# Build the graph
-workflow = StateGraph(AgentState)
-workflow.add_node("start_node", start_node)
-workflow.add_node("chat_node", chat_node)
-workflow.set_entry_point("start_node")
-workflow.add_edge(START, "start_node")
-workflow.add_edge("start_node", "chat_node")
-workflow.add_edge("chat_node", END)
-
-# Compile with checkpointer
-is_fast_api = os.environ.get("LANGGRAPH_FAST_API", "false").lower() == "true"
-
-if is_fast_api:
-    memory = MemorySaver()
-    graph = workflow.compile(checkpointer=memory)
-else:
-    graph = workflow.compile()
diff --git a/apps/agent/langgraph.json b/apps/agent/langgraph.json
index 8755850..804b1ea 100644
--- a/apps/agent/langgraph.json
+++ b/apps/agent/langgraph.json
@@ -4,8 +4,7 @@
   "dependencies": ["."],
   "package_manager": "uv",
   "graphs": {
-    "sample_agent": "./main.py:graph",
-    "document_agent": "./document_agent.py:graph"
+    "sample_agent": "./main.py:graph"
   },
   "env": "../../.env"
 }
diff --git a/apps/agent/main.py b/apps/agent/main.py
index e7bf0ef..c92fb1c 100644
--- a/apps/agent/main.py
+++ b/apps/agent/main.py
@@ -9,6 +9,7 @@
 
 from src.query import query_data
 from src.todos import AgentState, todo_tools
+from src.document import document_tools
 from src.form import generate_form
 from skills import load_all_skills, load_skill
 
@@ -18,7 +19,7 @@
 
 agent = create_agent(
     model=ChatOpenAI(model="gpt-5.4-2026-03-05"),
-    tools=[query_data, *todo_tools, generate_form],
+    tools=[query_data, *todo_tools, *document_tools, generate_form],
     middleware=[CopilotKitMiddleware()],
     state_schema=AgentState,
     system_prompt=f"""
@@ -59,7 +60,22 @@
         tools instead of `widgetRenderer`. Follow the skill below exactly:
 
         {_excalidraw_skill_text}
+
+        ## Document Editing
+
+        When the user asks to write, edit, create, or modify a document, use the `write_document` tool.
+        Always write the complete document, even when making small changes. After writing, the user will
+        see a confirmation dialog to review and accept or reject your changes. Be concise and follow
+        their specific instructions for content and format.
     """,
 )
 
-graph = agent
+graph = agent.with_config({
+    "metadata": {
+        "copilotkit:emit-intermediate-state": [{
+            "state_key": "document",
+            "tool": "write_document",
+            "tool_argument": "document",
+        }]
+    }
+})
diff --git a/apps/agent/src/document.py b/apps/agent/src/document.py
new file mode 100644
index 0000000..a72fbaa
--- /dev/null
+++ b/apps/agent/src/document.py
@@ -0,0 +1,34 @@
+import uuid
+from langchain.tools import tool, ToolRuntime
+from langchain.messages import ToolMessage, AIMessage
+from langgraph.types import Command
+
+
+@tool
+def write_document(document: str, runtime: ToolRuntime) -> Command:
+    """
+    Write or update a document. Use markdown formatting.
+    Do not use italic or strike-through - reserved for diffs.
+    Write the complete document, even when making small edits.
+    Keep document changes minimal - don't rewrite everything.
+    """
+    return Command(update={
+        "document": document,
+        "messages": [
+            ToolMessage(
+                content="Document written.",
+                tool_call_id=runtime.tool_call_id
+            ),
+            AIMessage(
+                content="",
+                tool_calls=[{
+                    "id": str(uuid.uuid4()),
+                    "name": "confirm_changes",
+                    "args": {},
+                }]
+            ),
+        ],
+    })
+
+
+document_tools = [write_document]
diff --git a/apps/agent/src/todos.py b/apps/agent/src/todos.py
index b647fee..5dcb4b6 100644
--- a/apps/agent/src/todos.py
+++ b/apps/agent/src/todos.py
@@ -2,7 +2,7 @@
 from langchain.tools import ToolRuntime, tool
 from langchain.messages import ToolMessage
 from langgraph.types import Command
-from typing import TypedDict, Literal
+from typing import TypedDict, Literal, Optional
 import uuid
 
 class Todo(TypedDict):
@@ -14,6 +14,7 @@ class Todo(TypedDict):
 
 class AgentState(BaseAgentState):
     todos: list[Todo]
+    document: Optional[str] = None
 
 @tool
 def manage_todos(todos: list[Todo], runtime: ToolRuntime) -> Command:
diff --git a/apps/app/src/app/api/copilotkit/route.ts b/apps/app/src/app/api/copilotkit/route.ts
index 0690f64..d3418dc 100644
--- a/apps/app/src/app/api/copilotkit/route.ts
+++ b/apps/app/src/app/api/copilotkit/route.ts
@@ -25,28 +25,10 @@ defaultAgent.use(
   })
 );
 
-// 3. Define the document agent for the canvas editor
-const documentAgent = new LangGraphAgent({
-  deploymentUrl: process.env.LANGGRAPH_DEPLOYMENT_URL || "http://localhost:8123",
-  graphId: "document_agent",
-  langsmithApiKey: process.env.LANGSMITH_API_KEY || "",
-});
-
-// Wire up MCP apps middleware for document agent
-documentAgent.use(
-  new MCPAppsMiddleware({
-    mcpServers: [{
-      type: "http",
-      url: process.env.MCP_SERVER_URL || "https://mcp.excalidraw.com",
-      serverId: "example_mcp_app",
-    }],
-  })
-);
-
 // Allow long-running agent + MCP tool calls
 export const maxDuration = 300;
 
-// 4. Define the route and CopilotRuntime for the agents
+// Define the route and CopilotRuntime for the agent
 export const POST = async (req: NextRequest) => {
   const { handleRequest } = copilotRuntimeNextJSAppRouterEndpoint({
     endpoint: "/api/copilotkit",
@@ -54,7 +36,6 @@ export const POST = async (req: NextRequest) => {
     runtime: new CopilotRuntime({
       agents: {
         default: defaultAgent,
-        document_agent: documentAgent,
       },
       a2ui: { injectA2UITool: true },
     }),
diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index cd9bb3b..5c7cbb2 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -46,7 +46,7 @@ export default function CanvasPage() {
 
             {/* Right: Chat Panel */}
             <div className="w-[400px] overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
-              {mounted && <CopilotChat agentId="document_agent" className="h-full flex flex-col" />}
+              {mounted && <CopilotChat agentId="default" className="h-full flex flex-col" />}
             </div>
           </div>
         </CopilotKit>
@@ -95,7 +95,7 @@ const DocumentEditor = () => {
   });
 
   const { agent } = useAgent({
-    agentId: "document_agent",
+    agentId: "default",
     updates: [UseAgentUpdate.OnStateChanged, UseAgentUpdate.OnRunStatusChanged],
   });
 
@@ -156,7 +156,7 @@ const DocumentEditor = () => {
   // Human-in-the-loop: confirm_changes (legacy)
   useHumanInTheLoop(
     {
-      agentId: "document_agent",
+      agentId: "default",
       name: "confirm_changes",
       render: ({ args, respond, status }) => (
         <ConfirmChanges
@@ -181,8 +181,8 @@ const DocumentEditor = () => {
   // Human-in-the-loop: write_document (primary)
   useHumanInTheLoop(
     {
-      agentId: "document_agent",
-      name: "write_document",
+      agentId: "default",
+      name: "confirm_changes",
       description: "Present the proposed changes to the user for review",
       parameters: z.object({
         document: z.string().describe("The full updated document in markdown format"),

From acb9aa6c45462d9d7f0f8d360c59eefcdf2452b1 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:45:48 -0700
Subject: [PATCH 13/28] fix: prevent state updates after component unmount in
 canvas editor

- Add isMountedRef to track component mount status
- Add cleanup effect that sets isMountedRef to false on unmount
- Guard all useEffect state updates with isMountedRef check
- Prevents 'signal is aborted without reason' errors from pending requests

This resolves AbortError warnings when navigating away from the canvas
page while the agent is still streaming or processing.
---
 apps/app/src/app/canvas/page.tsx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index 5c7cbb2..fea6c23 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -71,6 +71,14 @@ const DocumentEditor = () => {
   const [placeholderVisible, setPlaceholderVisible] = useState(false);
   const [currentDocument, setCurrentDocument] = useState("");
   const wasRunning = useRef(false);
+  const isMountedRef = useRef(true);
+
+  // Cleanup on unmount to prevent state updates after component is removed
+  useEffect(() => {
+    return () => {
+      isMountedRef.current = false;
+    };
+  }, []);
 
   useConfigureSuggestions({
     suggestions: [
@@ -113,6 +121,8 @@ const DocumentEditor = () => {
 
   // Handle final state update when run completes
   useEffect(() => {
+    if (!isMountedRef.current) return;
+
     if (wasRunning.current && !isLoading) {
       if (currentDocument.trim().length > 0 && currentDocument !== agentState?.document) {
         const newDocument = agentState?.document || "";
@@ -143,6 +153,8 @@ const DocumentEditor = () => {
 
   // Sync user edits to agent state
   useEffect(() => {
+    if (!isMountedRef.current) return;
+
     setPlaceholderVisible(text.length === 0);
 
     if (!isLoading && text !== currentDocument) {

From 3c84feb3fc29edb6d4abf9d701a7f6b33358bae7 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:52:44 -0700
Subject: [PATCH 14/28] style: refactor canvas page layout - add header,
 improve padding and layout structure

- Add header banner with 'Document to MCP' branding matching main page
- Wrap content in brand-glass-container for consistent styling
- Fix overflow issues by using flex-1 min-h-0 layout
- Improve padding and spacing for better UX
---
 apps/app/src/app/canvas/page.tsx | 62 ++++++++++++++++++++++++--------
 1 file changed, 48 insertions(+), 14 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index fea6c23..306b96c 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -33,23 +33,57 @@ export default function CanvasPage() {
       </div>
 
       {/* App shell */}
-      <div className="brand-shell" style={{ position: "relative", zIndex: 1, height: "100vh", overflow: "hidden" }}>
-        <CopilotKit
-          runtimeUrl="/api/copilotkit"
-          showDevConsole={false}
-        >
-          <div className="h-screen w-full flex gap-4 p-4" style={{ background: "var(--surface-light)" }}>
-            {/* Left: Document Editor */}
-            <div className="flex-1 overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
-              <DocumentEditor />
+      <div className="brand-shell" style={{ position: "relative", zIndex: 1 }}>
+        <div className="brand-glass-container">
+          {/* Header Banner */}
+          <div
+            className="shrink-0 border-b border-white/30 dark:border-white/8"
+            style={{
+              background: "linear-gradient(135deg, rgba(190,194,255,0.08) 0%, rgba(133,224,206,0.06) 100%)",
+            }}
+          >
+            <div className="flex items-center justify-between gap-4 px-5 py-3">
+              <div className="flex items-center gap-3 min-w-0 flex-1">
+                <div
+                  className="flex items-center justify-center shrink-0 w-9 h-9 rounded-lg text-white"
+                  style={{
+                    background: "linear-gradient(135deg, var(--color-lilac), var(--color-mint))",
+                  }}
+                >
+                  <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M12 2L2 7l10 5 10-5-10-5z" />
+                    <path d="M2 17l10 5 10-5" />
+                    <path d="M2 12l10 5 10-5" />
+                  </svg>
+                </div>
+                <p className="text-base font-semibold m-0 leading-snug" style={{ color: "var(--text-primary)" }}>
+                  Document to MCP
+                  <span className="font-normal" style={{ color: "var(--text-secondary)" }}> — powered by CopilotKit</span>
+                </p>
+              </div>
             </div>
+          </div>
 
-            {/* Right: Chat Panel */}
-            <div className="w-[400px] overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
-              {mounted && <CopilotChat agentId="default" className="h-full flex flex-col" />}
+          <CopilotKit
+            runtimeUrl="/api/copilotkit"
+            showDevConsole={false}
+          >
+            {/* Content Area */}
+            <div className="flex-1 min-h-0 flex flex-col">
+              <div className="flex-1 min-h-0 flex gap-4 p-4" style={{ background: "var(--surface-light)" }}>
+                {/* Left: Document Editor */}
+                <div className="flex-1 overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
+                  <DocumentEditor />
+                </div>
+
+                {/* Right: Chat Panel */}
+                <div className="w-[400px] overflow-hidden rounded-lg" style={{ background: "var(--surface-primary)", boxShadow: "0 1px 3px rgba(0, 0, 0, 0.08)" }}>
+                  {mounted && <CopilotChat agentId="default" className="h-full flex flex-col" />}
+                </div>
+              </div>
             </div>
-          </div>
-        </CopilotKit>
+          </CopilotKit>
+        </div>
       </div>
     </>
   );

From 4c34c07a44198701d7ebe426c382232644e8f007 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:53:23 -0700
Subject: [PATCH 15/28] style: rename canvas page to 'Document to Diagram'

---
 apps/app/src/app/canvas/page.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index 306b96c..b221fc7 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -57,7 +57,7 @@ export default function CanvasPage() {
                   </svg>
                 </div>
                 <p className="text-base font-semibold m-0 leading-snug" style={{ color: "var(--text-primary)" }}>
-                  Document to MCP
+                  Document to Diagram
                   <span className="font-normal" style={{ color: "var(--text-secondary)" }}> — powered by CopilotKit</span>
                 </p>
               </div>

From 4b7b73d8caebb0abc747e7f1e6e8bb96ed444d7c Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:54:21 -0700
Subject: [PATCH 16/28] ux: improve editor visibility and interaction feedback

- Add text cursor on editor container and EditorContent
- Add focus state rules for tiptap and ProseMirror
- Make it more obvious that the editor is an interactive text field
---
 apps/app/src/app/canvas/page.tsx  |  8 ++++++--
 apps/app/src/app/canvas/style.css | 23 +++++++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index b221fc7..d5231ad 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -265,8 +265,12 @@ const DocumentEditor = () => {
           Write whatever you want here in Markdown format...
         </div>
       )}
-      <div className="flex-1 overflow-hidden flex flex-col">
-        <EditorContent editor={editor} className="h-full p-10 overflow-y-auto" />
+      <div className="flex-1 overflow-hidden flex flex-col" style={{ cursor: "text" }}>
+        <EditorContent
+          editor={editor}
+          className="h-full p-10 overflow-y-auto"
+          style={{ cursor: "text" }}
+        />
       </div>
     </div>
   );
diff --git a/apps/app/src/app/canvas/style.css b/apps/app/src/app/canvas/style.css
index 93ad9c4..bc5ce40 100644
--- a/apps/app/src/app/canvas/style.css
+++ b/apps/app/src/app/canvas/style.css
@@ -99,3 +99,26 @@
   padding: 2px;
   font-style: normal;
 }
+
+/* Editor focus and interaction states */
+.tiptap {
+  outline: none;
+  cursor: text;
+}
+
+.tiptap:focus,
+.tiptap:focus-visible {
+  outline: none;
+}
+
+/* Tiptap container styling */
+.ProseMirror {
+  outline: none;
+  cursor: text;
+  min-height: 100%;
+}
+
+.ProseMirror:focus,
+.ProseMirror:focus-visible {
+  outline: none;
+}

From 47c26246951dc57d1d93711205e6612c16f67882 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:55:21 -0700
Subject: [PATCH 17/28] fix: hide placeholder text when editor is focused

- Track editor focus state with useEffect listeners
- Hide placeholder when editor is focused, regardless of text content
- Show placeholder only when editor is blurred AND empty
---
 apps/app/src/app/canvas/page.tsx | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index d5231ad..efc17b9 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -103,6 +103,7 @@ const DocumentEditor = () => {
   });
 
   const [placeholderVisible, setPlaceholderVisible] = useState(false);
+  const [isFocused, setIsFocused] = useState(false);
   const [currentDocument, setCurrentDocument] = useState("");
   const wasRunning = useRef(false);
   const isMountedRef = useRef(true);
@@ -114,6 +115,22 @@ const DocumentEditor = () => {
     };
   }, []);
 
+  // Track editor focus state
+  useEffect(() => {
+    if (!editor) return;
+
+    const handleFocus = () => setIsFocused(true);
+    const handleBlur = () => setIsFocused(false);
+
+    editor.on("focus", handleFocus);
+    editor.on("blur", handleBlur);
+
+    return () => {
+      editor.off("focus", handleFocus);
+      editor.off("blur", handleBlur);
+    };
+  }, [editor]);
+
   useConfigureSuggestions({
     suggestions: [
       {
@@ -189,7 +206,8 @@ const DocumentEditor = () => {
   useEffect(() => {
     if (!isMountedRef.current) return;
 
-    setPlaceholderVisible(text.length === 0);
+    // Show placeholder only when editor is not focused AND text is empty
+    setPlaceholderVisible(text.length === 0 && !isFocused);
 
     if (!isLoading && text !== currentDocument) {
       setCurrentDocument(text);
@@ -197,7 +215,7 @@ const DocumentEditor = () => {
         document: text,
       });
     }
-  }, [text, isLoading, currentDocument, setAgentState]);
+  }, [text, isLoading, currentDocument, isFocused, setAgentState]);
 
   // Human-in-the-loop: confirm_changes (legacy)
   useHumanInTheLoop(

From dda5a86f62b46dcabe2ee849e95a9b2a54555b64 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 09:56:11 -0700
Subject: [PATCH 18/28] feat: add 'Get started' button to canvas header

- Link to GitHub repository from Document to Diagram page
- Match styling and behavior of main page header button
---
 apps/app/src/app/canvas/page.tsx | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index efc17b9..4be3eaf 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -61,6 +61,19 @@ export default function CanvasPage() {
                   <span className="font-normal" style={{ color: "var(--text-secondary)" }}> — powered by CopilotKit</span>
                 </p>
               </div>
+              <a
+                href="https://github.com/CopilotKit/OpenGenerativeUI"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="inline-flex items-center px-5 py-2 rounded-full text-sm font-semibold text-white no-underline whitespace-nowrap transition-all duration-150 hover:-translate-y-px"
+                style={{
+                  background: "linear-gradient(135deg, var(--color-lilac-dark), var(--color-mint-dark))",
+                  boxShadow: "0 1px 4px rgba(149,153,204,0.3)",
+                  fontFamily: "var(--font-family)",
+                }}
+              >
+                Get started
+              </a>
             </div>
           </div>
 

From 2ddc6bbd8bccae6eef8dbd1458bebdd7eff5da6b Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:05:07 -0700
Subject: [PATCH 19/28] refactor: simplify and strengthen Excalidraw skill with
 overlap prevention focus

- Remove verbose sections and redundant explanations
- Add strict spacing requirements: 60px minimum vertical gaps, 40px horizontal
- Emphasize overlap prevention as core design principle
- Simplify diagram type patterns to essentials
- Reduce total length while maintaining critical information
- Add checklist for spacing/overlap verification
- Clarify y-coordinate calculations to prevent overlaps
---
 .../agent/skills/excalidraw-diagram-skill.txt | 233 +++++++-----------
 1 file changed, 93 insertions(+), 140 deletions(-)

diff --git a/apps/agent/skills/excalidraw-diagram-skill.txt b/apps/agent/skills/excalidraw-diagram-skill.txt
index eb52786..c41d10c 100644
--- a/apps/agent/skills/excalidraw-diagram-skill.txt
+++ b/apps/agent/skills/excalidraw-diagram-skill.txt
@@ -1,211 +1,164 @@
 # Excalidraw Diagram Skill
 
-Create beautiful, professional, animated Excalidraw diagrams with progressive camera reveals, color-coded zones, and polished visual design. Use this skill whenever a user asks to diagram, visualize, map, chart, illustrate, or draw anything — including architecture diagrams, flowcharts, sequence diagrams, concept explainers, system maps, process flows, and technical overviews. Also trigger for requests like "show me how X works", "draw a diagram of", "create a visual for", "make an Excalidraw of", or any time a visual explanation would be clearer than text alone.
+Create clean, simple Excalidraw diagrams with progressive camera reveals. Use this skill when a user asks to diagram, visualize, flowchart, or illustrate anything.
 
 ---
 
 ## Step 1 — Always call read_me first
 
-Before emitting ANY elements, call `Excalidraw:read_me`. Do not skip this step, even for simple diagrams. It provides the color palette, camera sizes, font rules, and element syntax required to produce clean output.
-
-```
-Excalidraw:read_me()
-```
-
-Then proceed directly to `Excalidraw:create_view` with your elements array — no narration about the read_me call.
+Before creating any elements, call `Excalidraw:read_me()` to get the color palette, camera sizes, and element syntax. Then proceed directly to `Excalidraw:create_view`.
 
 ---
 
-## Step 2 — Plan the diagram before writing elements
+## Step 2 — Planning (critical for spacing)
 
-Before writing elements, mentally sketch:
+Before writing elements:
 
-1. **What are the layers / zones?** (e.g. Frontend / Backend / Database, or Input / Process / Output)
-2. **What color grammar makes sense?** Assign one color per layer and keep it consistent throughout
-3. **How many camera positions do I need?** Plan 3–6 camera stops minimum for a reveal effect
-4. **What's the reading order?** Left-to-right or top-to-bottom; pick one and stick to it
+1. **Sketch zones/layers** — What are the main sections? (Frontend/Backend, Input/Process/Output, etc.)
+2. **Assign colors** — One color per zone, used consistently
+3. **Plan camera positions** — 3–6 stops for the reveal effect
+4. **Plan spacing** — Draw it on paper first. Leave **minimum 60px vertical gaps** between rows, **40px horizontal gaps** between columns
 
 ---
 
-## Step 3 — Core design rules (MUST follow)
-
-### Camera rules
-- **Always start with `cameraUpdate` as the first element**
-- Camera sizes MUST be exact 4:3 ratios: `400x300`, `600x450`, `800x600`, `1200x900`, `1600x1200`
-- Use **multiple cameraUpdates** throughout the array — pan to each section as you draw it
-- Leave padding: if content is 500px wide, use 800x600 camera
-- Final element should be a wide cameraUpdate showing the full diagram
-
-### Color grammar (use consistently)
-
-| Zone / Role         | Fill          | Stroke    |
-|---------------------|---------------|-----------|
-| UI / Frontend       | `#dbe4ff`     | `#4a9eed` |
-| Logic / Agent       | `#e5dbff`     | `#8b5cf6` |
-| Data / Storage      | `#d3f9d8`     | `#22c55e` |
-| External / API      | `#ffd8a8`     | `#f59e0b` |
-| Error / Alert       | `#ffc9c9`     | `#ef4444` |
-| Notes / Decisions   | `#fff3bf`     | `#f59e0b` |
-
-Zone background rectangles: use `opacity: 40`, `fillStyle: "solid"`
-
-Node shapes: use pastel fills (`#a5d8ff`, `#b2f2bb`, `#d0bfff`, `#ffd8a8`, `#c3fae8`, `#eebefa`)
-
-### Typography rules
-- Title: `fontSize: 26–28`, `strokeColor: "#1e1e1e"`
-- Subtitle / annotation: `fontSize: 16`, `strokeColor: "#757575"`
-- Shape labels: `fontSize: 16–18` via `label` property on the shape
-- NEVER use fontSize below 14
-- NEVER use light gray on white backgrounds (minimum text color: `#757575`)
-
-### Shape rules
-- Use `label: { "text": "...", "fontSize": 16 }` directly on shapes — no separate text elements
-- Minimum shape size: `120x60` for labeled boxes
-- Add `roundness: { type: 3 }` for rounded corners (preferred for nodes)
-- Leave 20–30px gaps between elements
-
-### Drawing order (z-order, critical)
-Emit in this sequence per section:
-1. Zone background rectangle (drawn first = sits behind)
+## Step 3 — Core rules (MUST follow)
+
+### Camera
+- Start with `cameraUpdate` as the **first element**
+- Use exact 4:3 ratios: `400x300`, `600x450`, `800x600`, `1200x900`, `1600x1200`
+- Pan to each section as you draw it
+- End with a wide view showing the full diagram
+
+### Spacing (prevent overlaps)
+- **Minimum vertical gap between rows: 60px**
+- **Minimum horizontal gap between columns: 40px**
+- Check all y-coordinates: if row 1 ends at y=180, row 2 starts at y=240 or later
+- Zone label at top-left (y+8px from zone top), nodes start 40px below label
+- Never place text directly on shape edges — add 8–10px padding
+
+### Color grammar
+| Zone | Fill | Stroke |
+|------|------|--------|
+| UI / Frontend | `#dbe4ff` | `#4a9eed` |
+| Logic / Agent | `#e5dbff` | `#8b5cf6` |
+| Data / Storage | `#d3f9d8` | `#22c55e` |
+| External / API | `#ffd8a8` | `#f59e0b` |
+| Error / Alert | `#ffc9c9` | `#ef4444` |
+| Notes | `#fff3bf` | `#f59e0b` |
+
+### Typography
+- Title: `fontSize: 28`, `strokeColor: "#1e1e1e"`
+- Labels: `fontSize: 16–18` via `label` property
+- **Never use fontSize below 14**
+- Minimum text color: `#757575` (never light gray on white)
+
+### Drawing order (z-order)
+Per section, emit in this order:
+1. Zone background rectangle (sits behind)
 2. Zone label text
 3. Node shapes (with labels)
 4. Arrows between nodes
-5. Then next section
 
-NEVER dump all rectangles, then all text, then all arrows.
+**Never dump all rectangles first, then all text.**
+
+### Shapes
+- Use `label: { "text": "...", "fontSize": 16 }` on shapes — no separate text elements
+- Minimum size: `120x60` for labeled boxes
+- Add `roundness: { type: 3 }` for rounded corners
 
-### Arrow rules
-- Always include `endArrowhead: "arrow"` for directional flow
-- Use `strokeStyle: "dashed"` for responses, return values, optional paths
-- Keep arrow labels short (under 20 chars) or omit — long labels overflow
-- Use `startBinding` / `endBinding` with `fixedPoint` to attach to shapes
+### Arrows
+- Include `endArrowhead: "arrow"` for direction
+- Use `strokeStyle: "dashed"` for responses/optional paths
+- Keep labels **under 15 characters** or omit
+- Use `startBinding` / `endBinding` with `fixedPoint` to attach cleanly
 
 ---
 
 ## Step 4 — Diagram type patterns
 
-### Architecture / System Diagram
-Zones as swim lanes (left-to-right or top-to-bottom). Each zone = one architectural layer. Arrows show data/request flow between layers. End with a full-width cameraUpdate.
-
-**Camera pattern:** Title zoom (M) → pan right zone by zone (S/M) → final overview (XL)
+**Architecture** — Zones as swim lanes (left-to-right). Arrows show data flow.
 
-### Sequence / Flow Diagram
-Actors as header boxes with dashed vertical lifelines. Horizontal arrows show messages. Pan camera downward as messages progress.
+**Sequence** — Actors as header boxes with lifelines. Horizontal arrows = messages. Pan down as flow progresses.
 
-**Camera pattern:** Title (M) → pan right per actor drawing header + lifeline → zoom out (L) → pan down per message group → final overview (XL)
+**Process/Flowchart** — Top-to-bottom. Diamonds for decisions, rectangles for steps. Color-code by stage.
 
-### Concept Explainer
-Start zoomed on the title, then reveal parts of the concept one at a time. Use annotations (`#fff3bf` boxes) as callouts. Simple left-to-right flow.
-
-**Camera pattern:** Title zoom (S) → zoom out (M) → pan section by section → final (L)
-
-### Process / Flowchart
-Diamonds for decisions, rectangles for steps. Top-to-bottom flow. Color-code by stage (e.g. initiation=blue, processing=purple, output=green).
-
-**Camera pattern:** Top zoom → pan down per stage group → final overview
+**Concept** — Start zoomed on title, reveal parts progressively. Use annotation boxes as callouts.
 
 ---
 
-## Step 5 — The camera reveal technique (what makes diagrams feel alive)
+## Step 5 — The reveal animation
 
-The secret to great Excalidraw diagrams is **drawing section by section with camera moves**:
+Draw section by section with camera moves:
 
 ```json
-// 1. Start with title, zoomed in
+// 1. Title, zoomed
 {"type":"cameraUpdate","width":600,"height":450,"x":100,"y":0},
 {"type":"text","id":"t1","x":200,"y":20,"text":"My Diagram","fontSize":28},
 
-// 2. Pan to first zone and draw it
+// 2. Pan to zone 1, draw it
 {"type":"cameraUpdate","width":400,"height":300,"x":20,"y":60},
-{"type":"rectangle","id":"zone1", ...zone background...},
-{"type":"rectangle","id":"node1", ...node with label...},
+{"type":"rectangle","id":"zone1","x":20,"y":80,"width":220,"height":380, ...},
+{"type":"rectangle","id":"node1","x":60,"y":130, ...},
 
-// 3. Pan to second zone
+// 3. Pan to zone 2
 {"type":"cameraUpdate","width":400,"height":300,"x":280,"y":60},
-{"type":"rectangle","id":"zone2", ...},
-{"type":"rectangle","id":"node2", ...},
+{"type":"rectangle","id":"node2","x":320,"y":130, ...},
 
-// 4. Draw connecting arrows (camera stays or pans to show both ends)
+// 4. Draw arrows
 {"type":"cameraUpdate","width":800,"height":600,"x":0,"y":40},
-{"type":"arrow","id":"a1", ...arrow from node1 to node2...},
+{"type":"arrow","id":"a1", ...},
 
-// 5. Final wide overview
+// 5. Final wide view
 {"type":"cameraUpdate","width":1200,"height":900,"x":-20,"y":-10}
 ```
 
-This creates the "drawing itself" animation effect users love.
-
 ---
 
-## Step 6 — Common mistakes to avoid
+## Step 6 — Overlap prevention checklist
 
-- **No cameraUpdate first** → diagram appears un-framed, elements clip
-- **Wrong aspect ratio** → `700x500` causes distortion; use `800x600`
-- **All elements at once, no panning** → loses the reveal animation
-- **Overlapping elements** → check y-coordinates leave 60–80px between rows
-- **Long arrow labels** → overflow the arrow; keep under 20 chars or use a note box instead
-- **Emoji in text** → don't render in Excalidraw's font
-- **Light text on white** → `#b0b0b0` on white is invisible; minimum `#757575`
-- **Zone label covered by nodes** → put zone label text at top-left of zone (y + 8px from zone top), nodes start 40px below
-- **Title not centered** → estimate `text.length x fontSize x 0.5` for width, then set `x = diagramCenterX - estimatedWidth/2`
+- [ ] All shapes have **at least 60px vertical separation**
+- [ ] Zone labels don't overlap with nodes (40px minimum gap below label)
+- [ ] Arrows don't cross unrelated zones
+- [ ] Text is 8–10px inside shape bounds (not on edges)
+- [ ] Zone backgrounds are drawn BEFORE nodes
+- [ ] Arrows drawn AFTER both source and target
+- [ ] No shape dimensions smaller than `100x50`
+- [ ] All camera sizes are valid 4:3 ratios
+- [ ] Final element is a wide cameraUpdate
+- [ ] Minimum 3 camera positions for animation
 
 ---
 
-## Step 7 — Quality checklist before emitting
+## Step 7 — Common mistakes
 
-- [ ] `Excalidraw:read_me` called
-- [ ] First element is `cameraUpdate`
-- [ ] All camera sizes are valid 4:3 ratios
-- [ ] Minimum 3 camera positions used (more = better animation)
-- [ ] Color grammar is consistent across zones
-- [ ] All shape labels use `label` property, not separate text elements
-- [ ] No font sizes below 14
-- [ ] Zone backgrounds are drawn BEFORE the nodes inside them
-- [ ] Arrows drawn AFTER both source and target shapes
-- [ ] Final element is a wide cameraUpdate revealing the full diagram
-- [ ] No emoji in any text strings
+- **Overlapping text** — Check y-coordinates strictly; use 60px gaps minimum
+- **No cameraUpdate first** — Elements clip and look wrong
+- **All elements at once** — Loses the animation; use multiple camerUpdates
+- **Long arrow labels** — Overflow; keep under 15 chars
+- **Light text on white** — Use `#757575` minimum
+- **Zone label covered by nodes** — Put label 8px from zone top, nodes 40px below
+- **Shapes touching edges** — Leave padding; awkward layout
 
 ---
 
-## Reference: Element snippets
+## Reference: Snippets
 
 **Zone background:**
 ```json
-{"type":"rectangle","id":"zone_bg","x":20,"y":80,"width":220,"height":380,"backgroundColor":"#dbe4ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":1,"opacity":40}
-```
-
-**Zone label:**
-```json
-{"type":"text","id":"zone_lbl","x":40,"y":88,"text":"FRONTEND","fontSize":14,"strokeColor":"#2563eb"}
+{"type":"rectangle","id":"z1","x":20,"y":80,"width":220,"height":380,"backgroundColor":"#dbe4ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":1,"opacity":40}
 ```
 
 **Node:**
 ```json
-{"type":"rectangle","id":"n1","x":60,"y":130,"width":150,"height":55,"backgroundColor":"#a5d8ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":2,"label":{"text":"API Gateway","fontSize":16}}
+{"type":"rectangle","id":"n1","x":60,"y":130,"width":150,"height":55,"backgroundColor":"#a5d8ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":2,"label":{"text":"API","fontSize":16}}
 ```
 
-**Arrow (solid, directed):**
+**Arrow:**
 ```json
 {"type":"arrow","id":"a1","x":210,"y":157,"width":100,"height":0,"points":[[0,0],[100,0]],"strokeColor":"#1e1e1e","strokeWidth":2,"endArrowhead":"arrow","startBinding":{"elementId":"n1","fixedPoint":[1,0.5]},"endBinding":{"elementId":"n2","fixedPoint":[0,0.5]}}
 ```
 
-**Arrow (dashed, response):**
-```json
-{"type":"arrow","id":"a2","x":310,"y":157,"width":-100,"height":0,"points":[[0,0],[-100,0]],"strokeColor":"#757575","strokeWidth":2,"strokeStyle":"dashed","endArrowhead":"arrow"}
-```
-
-**Annotation note:**
-```json
-{"type":"rectangle","id":"note1","x":80,"y":200,"width":200,"height":36,"backgroundColor":"#fff3bf","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#f59e0b","strokeWidth":1,"opacity":80,"label":{"text":"Caches for 5 min","fontSize":14}}
-```
-
-**Title text:**
-```json
-{"type":"text","id":"title","x":150,"y":15,"text":"System Architecture","fontSize":28,"strokeColor":"#1e1e1e"}
-```
-
-**Stick figure (user icon):**
+**Annotation:**
 ```json
-{"type":"ellipse","id":"fig_head","x":58,"y":110,"width":20,"height":20,"backgroundColor":"#a5d8ff","fillStyle":"solid","strokeColor":"#4a9eed","strokeWidth":2},
-{"type":"rectangle","id":"fig_body","x":57,"y":132,"width":22,"height":26,"backgroundColor":"#a5d8ff","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#4a9eed","strokeWidth":2}
+{"type":"rectangle","id":"note1","x":80,"y":200,"width":200,"height":36,"backgroundColor":"#fff3bf","fillStyle":"solid","roundness":{"type":3},"strokeColor":"#f59e0b","strokeWidth":1,"opacity":80,"label":{"text":"Note here","fontSize":14}}
 ```

From b8619ce0c0a03d35b172352ad475c0555955777f Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:21:29 -0700
Subject: [PATCH 20/28] fix: add isMountedRef checks to all state-updating
 effects

- Add mounted check to focus/blur handlers to prevent state updates on unmounted component
- Add mounted check to loading state transitions effect
- Add mounted check to streaming updates effect
- Prevents 'signal is aborted without reason' errors from async state updates
---
 apps/app/src/app/canvas/page.tsx | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index 4be3eaf..690b5d7 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -132,8 +132,12 @@ const DocumentEditor = () => {
   useEffect(() => {
     if (!editor) return;
 
-    const handleFocus = () => setIsFocused(true);
-    const handleBlur = () => setIsFocused(false);
+    const handleFocus = () => {
+      if (isMountedRef.current) setIsFocused(true);
+    };
+    const handleBlur = () => {
+      if (isMountedRef.current) setIsFocused(false);
+    };
 
     editor.on("focus", handleFocus);
     editor.on("blur", handleBlur);
@@ -177,6 +181,8 @@ const DocumentEditor = () => {
 
   // Handle loading state transitions
   useEffect(() => {
+    if (!isMountedRef.current) return;
+
     if (isLoading) {
       setCurrentDocument(editor?.getText() || "");
     }
@@ -200,6 +206,8 @@ const DocumentEditor = () => {
 
   // Handle streaming updates while agent is running
   useEffect(() => {
+    if (!isMountedRef.current) return;
+
     if (isLoading) {
       if (currentDocument.trim().length > 0) {
         const newDocument = agentState?.document || "";

From de80d48f5af290dfa2c384644765e6787f47d1a0 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:40:18 -0700
Subject: [PATCH 21/28] feat: add WebSocket document as default content on
 canvas page

- Set placeholder text to 'How do WebSockets work?'
- Initialize canvas with comprehensive WebSocket explanation document
- Document includes handshake process, persistent connections, frames, HTTP comparison, and use cases
- Provides starting point for user to ask agent to generate Excalidraw diagram
---
 apps/app/src/app/canvas/page.tsx | 51 ++++++++++++++++++++++++++++++--
 1 file changed, 49 insertions(+), 2 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index 690b5d7..f781919 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -106,6 +106,46 @@ interface AgentState {
   document: string;
 }
 
+const DEFAULT_DOCUMENT = `# How do WebSockets Work?
+
+## 1. The Handshake (HTTP Upgrade)
+
+It starts as a regular HTTP request. The client sends a special header asking to "upgrade" the connection:
+
+- GET /chat HTTP/1.1
+- Upgrade: websocket
+- Connection: Upgrade
+
+The server responds with 101 Switching Protocols, and from that point on, the connection is no longer HTTP — it's a WebSocket.
+
+## 2. The Persistent Connection
+
+Unlike HTTP (where each request opens and closes a connection), the WebSocket connection stays open. Both sides can now send messages to each other at any time without waiting for the other to ask first.
+
+## 3. Frames, Not Requests
+
+Data is sent as lightweight "frames" — small packets that can carry text, binary data, or control signals (like ping/pong to keep the connection alive).
+
+## HTTP vs WebSocket
+
+| Aspect | HTTP | WebSocket |
+|--------|------|-----------|
+| Direction | One-way (request → response) | Two-way (either side) |
+| Connection | Opens and closes each time | Stays open |
+| Overhead | Headers sent every request | Minimal after handshake |
+| Use case | Loading pages, REST APIs | Chat, live feeds, games |
+
+## A simple mental model
+
+Think of HTTP like sending letters — you write one, wait for a reply, then write another. WebSocket is like a phone call — once connected, both people can speak freely at any time without hanging up between each sentence.
+
+## Common use cases
+
+- Chat apps — messages appear instantly without polling
+- Live dashboards — stock prices, sports scores, analytics
+- Multiplayer games — real-time position and state sync
+- Collaborative tools — like Google Docs, where edits appear live`;
+
 const DocumentEditor = () => {
   const editor = useEditor({
     extensions,
@@ -117,10 +157,17 @@ const DocumentEditor = () => {
 
   const [placeholderVisible, setPlaceholderVisible] = useState(false);
   const [isFocused, setIsFocused] = useState(false);
-  const [currentDocument, setCurrentDocument] = useState("");
+  const [currentDocument, setCurrentDocument] = useState(DEFAULT_DOCUMENT);
   const wasRunning = useRef(false);
   const isMountedRef = useRef(true);
 
+  // Initialize editor with default document on mount
+  useEffect(() => {
+    if (editor && currentDocument) {
+      editor.commands.setContent(fromMarkdown(currentDocument));
+    }
+  }, [editor]);
+
   // Cleanup on unmount to prevent state updates after component is removed
   useEffect(() => {
     return () => {
@@ -301,7 +348,7 @@ const DocumentEditor = () => {
     <div className="relative h-full w-full flex flex-col overflow-hidden">
       {placeholderVisible && (
         <div className="absolute top-6 left-10 pointer-events-none text-sm" style={{ color: "var(--text-tertiary)" }}>
-          Write whatever you want here in Markdown format...
+          How do WebSockets work?
         </div>
       )}
       <div className="flex-1 overflow-hidden flex flex-col" style={{ cursor: "text" }}>

From 45fd46d560756b29939b8b4f643cd042dcde1726 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:41:41 -0700
Subject: [PATCH 22/28] fix: replace suggestions with single WebSocket document
 chip

- Change from 4 generic suggestions to 1 focused suggestion
- Suggestion prompts agent to generate WebSocket document
- Aligns with canvas page purpose
---
 apps/app/src/app/canvas/page.tsx | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index f781919..c41ef92 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -198,20 +198,8 @@ const DocumentEditor = () => {
   useConfigureSuggestions({
     suggestions: [
       {
-        title: "Write a pirate story",
-        message: "Please write a story about a pirate named Candy Beard.",
-      },
-      {
-        title: "Write a mermaid story",
-        message: "Please write a story about a mermaid named Luna.",
-      },
-      {
-        title: "Add character",
-        message: "Please add a character named Courage.",
-      },
-      {
-        title: "Create documentation",
-        message: "Create technical documentation for a REST API.",
+        title: "Generate WebSocket document",
+        message: "Create a comprehensive document explaining how WebSockets work, including the handshake process, persistent connections, frames, comparison with HTTP, and common use cases.",
       },
     ],
     available: "always",

From ef85a6dbf06a9e74215e522a5f806970f541997a Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:42:56 -0700
Subject: [PATCH 23/28] feat: add more technical document generation prompts

- REST API architecture
- OAuth 2.0 authentication flow
- Microservices architecture
- GraphQL explanation
- CI/CD pipelines

Provides diverse examples for users to generate technical documentation and diagrams
---
 apps/app/src/app/canvas/page.tsx | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index c41ef92..28f2907 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -201,6 +201,26 @@ const DocumentEditor = () => {
         title: "Generate WebSocket document",
         message: "Create a comprehensive document explaining how WebSockets work, including the handshake process, persistent connections, frames, comparison with HTTP, and common use cases.",
       },
+      {
+        title: "Explain REST API architecture",
+        message: "Write a detailed document about REST API design principles, HTTP methods, status codes, request/response structure, and best practices.",
+      },
+      {
+        title: "How does OAuth 2.0 work?",
+        message: "Create a document explaining OAuth 2.0 authentication flow, including authorization servers, access tokens, refresh tokens, and common scenarios.",
+      },
+      {
+        title: "Microservices architecture",
+        message: "Write a comprehensive guide to microservices architecture, covering service decomposition, inter-service communication, data consistency, and deployment patterns.",
+      },
+      {
+        title: "What is GraphQL?",
+        message: "Create a document explaining GraphQL, including how it differs from REST, query language basics, schema definition, and resolver functions.",
+      },
+      {
+        title: "CI/CD pipeline explained",
+        message: "Write a detailed document about continuous integration and continuous deployment, covering stages, automated testing, build artifacts, and deployment strategies.",
+      },
     ],
     available: "always",
   });

From 036554f9121df1e5c9be73dd8e9c0d99411340a6 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:44:21 -0700
Subject: [PATCH 24/28] fix: hide suggestions when chat has messages

- Change suggestion availability from 'always' to 'on-empty'
- Prompts now only show in empty chat
- Hides clutter when conversation is ongoing
---
 apps/app/src/app/canvas/page.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index 28f2907..130e2f5 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -222,7 +222,7 @@ const DocumentEditor = () => {
         message: "Write a detailed document about continuous integration and continuous deployment, covering stages, automated testing, build artifacts, and deployment strategies.",
       },
     ],
-    available: "always",
+    available: "on-empty",
   });
 
   const { agent } = useAgent({

From 280e8f2dfc1d8d0c81e4b7ab77c4155bf16c8ff7 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:45:00 -0700
Subject: [PATCH 25/28] fix: show only 3 prompt suggestions initially

- Keep most impactful examples: WebSocket, REST API, Microservices
- Cleaner UI with fewer choices
- Easier to scan and select for new users
---
 apps/app/src/app/canvas/page.tsx | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index 130e2f5..f7c84eb 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -205,22 +205,10 @@ const DocumentEditor = () => {
         title: "Explain REST API architecture",
         message: "Write a detailed document about REST API design principles, HTTP methods, status codes, request/response structure, and best practices.",
       },
-      {
-        title: "How does OAuth 2.0 work?",
-        message: "Create a document explaining OAuth 2.0 authentication flow, including authorization servers, access tokens, refresh tokens, and common scenarios.",
-      },
       {
         title: "Microservices architecture",
         message: "Write a comprehensive guide to microservices architecture, covering service decomposition, inter-service communication, data consistency, and deployment patterns.",
       },
-      {
-        title: "What is GraphQL?",
-        message: "Create a document explaining GraphQL, including how it differs from REST, query language basics, schema definition, and resolver functions.",
-      },
-      {
-        title: "CI/CD pipeline explained",
-        message: "Write a detailed document about continuous integration and continuous deployment, covering stages, automated testing, build artifacts, and deployment strategies.",
-      },
     ],
     available: "on-empty",
   });

From 0c729255e7df95d762e01676aaae869b6e43ab90 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:46:22 -0700
Subject: [PATCH 26/28] fix: resolve AbortError and fix suggestion chips
 visibility

- Add isMountedRef guard to editor initialization effect
- Fix initialization effect dependency to properly watch currentDocument
- Remove invalid 'on-empty' parameter from suggestions (restore defaults)
- Prevents state updates after unmount that caused AbortError
---
 apps/app/src/app/canvas/page.tsx | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index f7c84eb..bbdec19 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -163,10 +163,9 @@ const DocumentEditor = () => {
 
   // Initialize editor with default document on mount
   useEffect(() => {
-    if (editor && currentDocument) {
-      editor.commands.setContent(fromMarkdown(currentDocument));
-    }
-  }, [editor]);
+    if (!editor || !isMountedRef.current) return;
+    editor.commands.setContent(fromMarkdown(currentDocument));
+  }, [editor, currentDocument]);
 
   // Cleanup on unmount to prevent state updates after component is removed
   useEffect(() => {
@@ -210,7 +209,6 @@ const DocumentEditor = () => {
         message: "Write a comprehensive guide to microservices architecture, covering service decomposition, inter-service communication, data consistency, and deployment patterns.",
       },
     ],
-    available: "on-empty",
   });
 
   const { agent } = useAgent({

From 6eb355aa9df34b2bee9905a5e2fe91ee0cd5cdbc Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:47:47 -0700
Subject: [PATCH 27/28] feat: add streaming animation to document editor during
 generation

- Add pulsing glow animation (streamingGlow) on editor border
- Animation activates when agent is running (isLoading state)
- Subtle purple glow effect with inset shadow
- Provides visual feedback that document is being generated
---
 apps/app/src/app/canvas/page.tsx  |  5 ++++-
 apps/app/src/app/canvas/style.css | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index bbdec19..adf9922 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -345,7 +345,10 @@ const DocumentEditor = () => {
           How do WebSockets work?
         </div>
       )}
-      <div className="flex-1 overflow-hidden flex flex-col" style={{ cursor: "text" }}>
+      <div
+        className={`flex-1 overflow-hidden flex flex-col ${isLoading ? "editor-streaming" : ""}`}
+        style={{ cursor: "text" }}
+      >
         <EditorContent
           editor={editor}
           className="h-full p-10 overflow-y-auto"
diff --git a/apps/app/src/app/canvas/style.css b/apps/app/src/app/canvas/style.css
index bc5ce40..c247219 100644
--- a/apps/app/src/app/canvas/style.css
+++ b/apps/app/src/app/canvas/style.css
@@ -122,3 +122,21 @@
 .ProseMirror:focus-visible {
   outline: none;
 }
+
+/* Streaming animation for active generation */
+@keyframes streamingGlow {
+  0% {
+    box-shadow: inset 0 0 0 2px rgba(139, 92, 246, 0.3), 0 0 20px rgba(139, 92, 246, 0.1);
+  }
+  50% {
+    box-shadow: inset 0 0 0 2px rgba(139, 92, 246, 0.6), 0 0 30px rgba(139, 92, 246, 0.2);
+  }
+  100% {
+    box-shadow: inset 0 0 0 2px rgba(139, 92, 246, 0.3), 0 0 20px rgba(139, 92, 246, 0.1);
+  }
+}
+
+.editor-streaming {
+  animation: streamingGlow 2s ease-in-out infinite;
+  border-radius: 0.5rem;
+}

From d546f20ff98d909763d603aa77ecb9277da13562 Mon Sep 17 00:00:00 2001
From: jerelvelarde <Jereljohnvelarde@gmail.com>
Date: Thu, 19 Mar 2026 10:50:55 -0700
Subject: [PATCH 28/28] fix: fix markdown rendering and improve streaming

- Remove fromMarkdown() HTML conversion - use markdown directly in editor
- Tiptap with StarterKit handles markdown parsing natively
- Fixes broken rendering with code blocks and headers after generation
- Simplify streaming updates to just set markdown content
- Update all editor content setters to use markdown directly
---
 apps/app/src/app/canvas/page.tsx | 28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/apps/app/src/app/canvas/page.tsx b/apps/app/src/app/canvas/page.tsx
index adf9922..7df01bc 100644
--- a/apps/app/src/app/canvas/page.tsx
+++ b/apps/app/src/app/canvas/page.tsx
@@ -164,7 +164,7 @@ const DocumentEditor = () => {
   // Initialize editor with default document on mount
   useEffect(() => {
     if (!editor || !isMountedRef.current) return;
-    editor.commands.setContent(fromMarkdown(currentDocument));
+    editor.commands.setContent(currentDocument);
   }, [editor, currentDocument]);
 
   // Cleanup on unmount to prevent state updates after component is removed
@@ -237,9 +237,7 @@ const DocumentEditor = () => {
     if (wasRunning.current && !isLoading) {
       if (currentDocument.trim().length > 0 && currentDocument !== agentState?.document) {
         const newDocument = agentState?.document || "";
-        const diff = diffPartialText(currentDocument, newDocument, true);
-        const markdown = fromMarkdown(diff);
-        editor?.commands.setContent(markdown);
+        editor?.commands.setContent(newDocument);
       }
     }
     wasRunning.current = isLoading;
@@ -249,18 +247,10 @@ const DocumentEditor = () => {
   useEffect(() => {
     if (!isMountedRef.current) return;
 
-    if (isLoading) {
-      if (currentDocument.trim().length > 0) {
-        const newDocument = agentState?.document || "";
-        const diff = diffPartialText(currentDocument, newDocument);
-        const markdown = fromMarkdown(diff);
-        editor?.commands.setContent(markdown);
-      } else {
-        const markdown = fromMarkdown(agentState?.document || "");
-        editor?.commands.setContent(markdown);
-      }
+    if (isLoading && agentState?.document) {
+      editor?.commands.setContent(agentState.document);
     }
-  }, [agentState?.document, isLoading, currentDocument, editor]);
+  }, [agentState?.document, isLoading, editor]);
 
   const text = editor?.getText() || "";
 
@@ -290,11 +280,11 @@ const DocumentEditor = () => {
           respond={respond}
           status={status}
           onReject={() => {
-            editor?.commands.setContent(fromMarkdown(currentDocument));
+            editor?.commands.setContent(currentDocument);
             setAgentState({ document: currentDocument });
           }}
           onConfirm={() => {
-            editor?.commands.setContent(fromMarkdown(agentState?.document || ""));
+            editor?.commands.setContent(agentState?.document || "");
             setCurrentDocument(agentState?.document || "");
             setAgentState({ document: agentState?.document || "" });
           }}
@@ -321,11 +311,11 @@ const DocumentEditor = () => {
               respond={respond}
               status={status}
               onReject={() => {
-                editor?.commands.setContent(fromMarkdown(currentDocument));
+                editor?.commands.setContent(currentDocument);
                 setAgentState({ document: currentDocument });
               }}
               onConfirm={() => {
-                editor?.commands.setContent(fromMarkdown(agentState?.document || ""));
+                editor?.commands.setContent(agentState?.document || "");
                 setCurrentDocument(agentState?.document || "");
                 setAgentState({ document: agentState?.document || "" });
               }}