Issue on docs (MCP for codex doesn't work)

[boxxxie]

Path: /building-with-ai

Seems like the mcp config for codex is broken in some way. i'm not sure how, though.
I tried to install it for my project, but it would only write to the global config (maybe this is by design for codex)

i have the MCP working in gemini-cli fine.

.codex/config.toml

[mcp_servers.trigger]
command = "npx"
args = [ "trigger.dev@4.3.3", "mcp", "--dev-only" ]

codex log:

╭────────────────────────────────────────────────────╮
│ >_ OpenAI Codex (v0.101.0)                         │
│                                                    │
│ model:     gpt-5.2-codex medium   /model to change │
│ directory: ~/projects/nvestiv-deals-workflow       │
╰────────────────────────────────────────────────────╯

  Tip: New Build faster with Codex.

⚠ MCP client for `trigger` timed out after 10 seconds. Add or adjust `startup_timeout_sec` in your config.toml:
  [mcp_servers.trigger]
  startup_timeout_sec = XX

⚠ MCP startup incomplete (failed: trigger)

• Model changed to gpt-5.2-codex medium

/mcp

🔌  MCP Tools

  • No MCP tools available.

  • trigger
    • Status: enabled
    • Auth: Unsupported
    • Command: npx trigger.dev@4.3.3 mcp --dev-only
    • Tools: (none)
    • Resources: (none)
    • Resource templates: (none)