diff --git a/src/agent-runtime.ts b/src/agent-runtime.ts
index 2cc911c..c624d4d 100644
--- a/src/agent-runtime.ts
+++ b/src/agent-runtime.ts
@@ -809,6 +809,13 @@ export class AgentRuntime {
       url: snapshot.url,
       source,
       captcha: snapshot.diagnostics?.captcha ?? null,
+      evaluateJs: async (code: string) => {
+        const result = await this.evaluateJs({ code });
+        if (!result.ok) {
+          throw new Error(result.error ?? 'evaluateJs failed');
+        }
+        return result.value;
+      },
     };
   }
 
diff --git a/src/captcha/types.ts b/src/captcha/types.ts
index e57b46a..eb12202 100644
--- a/src/captcha/types.ts
+++ b/src/captcha/types.ts
@@ -16,6 +16,8 @@ export interface CaptchaContext {
   snapshotPath?: string;
   liveSessionUrl?: string;
   meta?: Record<string, string>;
+  evaluateJs?: (code: string) => Promise<any>;
+  pageControl?: PageControlHook;
 }
 
 export interface CaptchaResolution {
@@ -26,6 +28,11 @@ export interface CaptchaResolution {
   pollMs?: number;
 }
 
+export interface PageControlHook {
+  evaluateJs: (code: string) => Promise<any>;
+  getUrl?: () => Promise<string>;
+}
+
 export type CaptchaHandler = (
   ctx: CaptchaContext
 ) => CaptchaResolution | Promise<CaptchaResolution>;
diff --git a/src/extension/injected_api.js b/src/extension/injected_api.js
index f4728d4..8d50639 100644
--- a/src/extension/injected_api.js
+++ b/src/extension/injected_api.js
@@ -115,6 +115,26 @@
             arkose: 0,
             awswaf: 0
         };
+        function isVisibleElement(el) {
+            try {
+                if (!el) return !1;
+                const style = window.getComputedStyle(el);
+                if ("none" === style.display || "hidden" === style.visibility) return !1;
+                const opacity = parseFloat(style.opacity || "1");
+                if (!Number.isNaN(opacity) && opacity <= .01) return !1;
+                if (!el.getClientRects || 0 === el.getClientRects().length) return !1;
+                const rect = el.getBoundingClientRect();
+                if (rect.width < 8 || rect.height < 8) return !1;
+                const vw = window.innerWidth || document.documentElement.clientWidth || 0;
+                const vh = window.innerHeight || document.documentElement.clientHeight || 0;
+                if (vw && vh) {
+                    if (rect.bottom <= 0 || rect.right <= 0 || rect.top >= vh || rect.left >= vw) return !1;
+                }
+                return !0;
+            } catch (e) {
+                return !1;
+            }
+        }
         try {
             const iframes = document.querySelectorAll("iframe");
             for (const iframe of iframes) {
diff --git a/tests/agent-runtime-captcha-context.test.ts b/tests/agent-runtime-captcha-context.test.ts
new file mode 100644
index 0000000..f23c5e8
--- /dev/null
+++ b/tests/agent-runtime-captcha-context.test.ts
@@ -0,0 +1,61 @@
+import { AgentRuntime } from '../src/agent-runtime';
+import { Tracer } from '../src/tracing/tracer';
+import { TraceSink } from '../src/tracing/sink';
+import { CaptchaDiagnostics, Snapshot } from '../src/types';
+import { MockPage } from './mocks/browser-mock';
+
+class MockSink extends TraceSink {
+  public events: any[] = [];
+  emit(event: Record<string, any>): void {
+    this.events.push(event);
+  }
+  async close(): Promise<void> {
+    // no-op
+  }
+  getSinkType(): string {
+    return 'MockSink';
+  }
+}
+
+describe('AgentRuntime captcha context', () => {
+  it('exposes evaluateJs hook to captcha handlers', async () => {
+    const sink = new MockSink();
+    const tracer = new Tracer('test-run', sink);
+    const page = new MockPage('https://example.com') as any;
+    page.evaluate = jest.fn().mockResolvedValue('ok');
+
+    const captcha: CaptchaDiagnostics = {
+      detected: true,
+      confidence: 0.9,
+      provider_hint: 'recaptcha',
+      evidence: {
+        iframe_src_hits: ['https://www.google.com/recaptcha/api2/anchor'],
+        selector_hits: [],
+        text_hits: [],
+        url_hits: [],
+      },
+    };
+
+    const snapshot: Snapshot = {
+      status: 'success',
+      url: 'https://example.com',
+      elements: [],
+      diagnostics: { captcha },
+      timestamp: 't1',
+    };
+
+    const browserLike = {
+      snapshot: async () => snapshot,
+    };
+
+    const runtime = new AgentRuntime(browserLike as any, page as any, tracer);
+    runtime.beginStep('captcha_test');
+
+    const ctx = (runtime as any).buildCaptchaContext(snapshot, 'gateway');
+    expect(typeof ctx.evaluateJs).toBe('function');
+
+    const result = await ctx.evaluateJs('1+1');
+    expect(result).toBe('ok');
+    expect(page.evaluate).toHaveBeenCalled();
+  });
+});