Codex CLI

OpenAI's Codex CLI has native OpenTelemetry support.

Automatic Setup

flowstate-telemetry install --tool codex-cli

This configures the [otel] section in ~/.codex/config.toml.

Manual Setup

Add the following to ~/.codex/config.toml:

[otel]
endpoint = "https://otel.flowstate.inc"
api_key = "YOUR_TELEMETRY_KEY"

To enable prompt capture, add:

[otel]
endpoint = "https://otel.flowstate.inc"
api_key = "YOUR_TELEMETRY_KEY"
log_user_prompt = true

What Gets Captured

Event	Data Collected
Prompts	Prompt text (if log_user_prompt enabled), session ID
API requests	Model, input/output tokens, cost, duration
Tool results	Tool name, success/failure
File operations	Files modified, lines changed

Limitations

• Prompt capture is opt-in (--prompts flag or log_user_prompt = true)