docs: add Codex CLI usage instructions to reference servers

src/everything/README.md

@@ -62,6 +62,12 @@ Alternatively, you can add the configuration to a file called `.vscode/mcp.json`
 }
 ```
 
+### Usage with Codex CLI
+
+```bash
+codex mcp add everything -- npx -y @modelcontextprotocol/server-everything
+```
+
 ## Running from source with [HTTP+SSE Transport](https://modelcontextprotocol.io/specification/2024-11-05/basic/transports#http-with-sse) (deprecated as of [2025-03-26](https://modelcontextprotocol.io/specification/2025-03-26/basic/transports))
 
 ```shell

src/fetch/README.md

@@ -212,6 +212,12 @@ If you're experiencing timeout issues on Windows, you may need to set the `PYTHO
 
 This addresses character encoding issues that can cause the server to timeout on Windows systems.
 
+### Usage with Codex CLI
+
+```bash
+codex mcp add fetch -- uvx mcp-server-fetch
+```
+
 ## Debugging
 
 You can use the MCP inspector to debug the server. For uvx installations:

src/filesystem/README.md

@@ -308,6 +308,12 @@ Note: all directories must be mounted to `/projects` by default.
 }
 ```
 
+### Usage with Codex CLI
+
+```bash
+codex mcp add filesystem -- npx -y @modelcontextprotocol/server-filesystem $HOME/Desktop
+```
+
 ## Build
 
 Docker build:

src/git/README.md

@@ -266,6 +266,12 @@ Add to your Zed settings.json:
 ```
 </details>
 
+### Usage with Codex CLI
+
+```bash
+codex mcp add git -- uvx mcp-server-git
+```
+
 ## Debugging
 
 You can use the MCP inspector to debug the server. For uvx installations:

src/memory/README.md

@@ -268,6 +268,12 @@ Follow these steps for each interaction:
      c) Store facts about them as observations
 ```
 
+### Usage with Codex CLI
+
+```bash
+codex mcp add memory -- npx -y @modelcontextprotocol/server-memory
+```
+
 ## Building
 
 Docker:

src/time/README.md

@@ -259,6 +259,12 @@ cd path/to/servers/src/time
 npx @modelcontextprotocol/inspector uv run mcp-server-time
 ```
 
+### Usage with Codex CLI
+
+```bash
+codex mcp add time -- uvx mcp-server-time
+```
+
 ## Examples of Questions for Claude
 
 1. "What time is it now?" (will use system timezone)