Codex Conductor

Codex Conductor is a local cockpit, CLI, and MCP server for watching your Codex sessions across projects.

It reads the local Codex transcript trail under ~/.codex/sessions/, joins it with ~/.codex/session_index.jsonl when available, and turns scattered runs into a status board grouped by working, open, recent, and idle sessions.

Why

Codex already stores local transcripts so you can resume work later. Codex Conductor turns those transcripts into operational awareness:

• codex-conductor gives you a fast terminal table of recent sessions.

• codex-conductor up opens a local cockpit on 127.0.0.1.

• codex-conductor mcp lets an MCP-aware agent ask what is active, what is blocked, and what is left.

• Managed tmux windows let you launch or drive Codex sessions from one board.

• The irreversibility gate refuses unattended deploy, send, delete, and spend approvals.

Related MCP server: mcp-codex-dev

Install

git clone https://github.com/yksanjo/codex-conductor ~/codex-conductor
cd ~/codex-conductor
npm link

No build step and no runtime dependencies.

Usage

codex-conductor                 # table of recent Codex sessions
codex-conductor --minutes 120   # widen the lookback window
codex-conductor --all           # include older local sessions
codex-conductor --json          # structured output
codex-conductor up              # local web cockpit
codex-conductor mcp             # MCP server over stdio

The cockpit binds to localhost. State-changing endpoints require a local origin and the X-Conductor: 1 header.

Codex Adapter

The default codex-code adapter reads:

• ~/.codex/sessions/YYYY/MM/DD/*.jsonl

• ~/.codex/session_index.jsonl

Labels come from the session working directory. Override labels with:

{
  "my-project": "My Product",
  "codex-conductor": "Codex Conductor"
}

Save that as ~/.codex-conductor/labels.json.

Managed Codex Windows

Managed windows run inside a dedicated tmux session. This is the reliable control channel for sending replies or keys.

codex-conductor run review
codex-conductor say review "continue"
codex-conductor attach review
codex-conductor managed
codex-conductor stop review

Adopting an existing Codex session opens it with codex resume <SESSION_ID> in tmux:

codex-conductor ls --all
codex-conductor adopt 019f1111 review

If you keep the original tab open too, you will have two clients pointed at related work. Close the old tab when you want one control surface.

MCP

Run the server:

codex-conductor mcp

Useful tools:

• list_sessions lists Codex sessions by default.

• summarize_session expands one session by id, short id, or label.

• whats_left returns inferred goals and recent actions.

• pending_questions lists live sessions that appear blocked on a human.

• auto_continue sends continue only when the irreversibility gate allows it.

• reply_to_session, send_key, and run_window drive managed tmux windows.

Example Codex MCP config:

[mcp_servers.codex_conductor]
command = "node"
args = ["/Users/you/codex-conductor/mcp.js"]

Development

npm test

The test suite builds a temporary Codex transcript fixture and verifies the Codex-first CLI path plus the irreversibility gate.

License

MIT