Codex CLI + Vaner (MCP)

Codex CLI supports the Model Context Protocol out of the box. Point it at vaner mcp and Vaner will serve scenario-ranked context to your agent before every prompt.

Install

If you haven't installed Vaner yet:

curl -fsSL --proto '=https' --tlsv1.2 https://vaner.ai/install.sh | bash
vaner init --path .

Connect Codex CLI

codex mcp add vaner -- uvx --from 'vaner[mcp]' vaner mcp --path .

Verify

Run codex mcp list — vaner should appear with status running.

If Codex CLI reports the server as failed, run vaner mcp --path . manually in a terminal and read the error. The most common failure is a missing backend API key — confirm with vaner config show.

What this unlocks

• Feed Vaner context to Codex CLI sessions: codex exec "refactor X" can call list_scenarios and get_scenario first.
• Pin a per-repo backend in ~/.codex/config.toml alongside the Vaner entry.
• Pair with vaner daemon start to keep ponder warm between CLI invocations.

See also

• The full Connect your client guide.
• Backends for picking the model Vaner ponders with.
• Upstream docs: https://github.com/openai/codex.