pi-notify-koko

pi-notify-koko triggers Koko voice playback when the Pi agent completes a turn.

• Pi agent: https://github.com/badlogic/pi-mono
• Koko CLI: https://github.com/rbright/koko
• npm package: @rbright/pi-notify-koko

Install into Pi (npm, recommended)

Global install:

pi install npm:@rbright/pi-notify-koko

Project-local install:

pi install -l npm:@rbright/pi-notify-koko

Git install fallback:

pi install git:github.com/rbright/pi-notify-koko
pi install -l git:github.com/rbright/pi-notify-koko

If Pi is already running, reload extensions:

/reload

How it works

The extension is zero-config by default.

• completion trigger: final assistant message_end (non-tool) with agent_end fallback
• per-agent dedupe: one Koko invocation per completed agent run
• speaks the last assistant response text (sanitized, no truncation)
• enables Koko --summarize by default for concise spoken output
• prefers local ~/Projects/koko/.venv/bin/koko when available (falls back to koko on PATH)
• strips markdown/link formatting, wrapper symbols, and emojis before speaking
• if no assistant response text is available, it says nothing
• skips non-TTY sessions by default

Configuration (optional)

Variable	Default	Description
PI_NOTIFY_KOKO_ENABLED	true	Enable/disable notifications
PI_NOTIFY_KOKO_COMMAND	~/Projects/koko/.venv/bin/koko (if present), else koko	Koko executable name/path
PI_NOTIFY_KOKO_TIMEOUT_MS	15000	Subprocess timeout in ms
PI_NOTIFY_KOKO_ALLOW_NON_TTY	false	Allow triggering in non-TTY contexts
PI_NOTIFY_KOKO_VOICE	unset	Passed as --voice <value>
PI_NOTIFY_KOKO_MODEL_DIR	unset	Passed as --model-dir <value>
PI_NOTIFY_KOKO_NO_PLAY	false	Adds --no-play
PI_NOTIFY_KOKO_SUMMARIZE	true	Adds --summarize unless args already include --summarize/--no-summarize
PI_NOTIFY_KOKO_ARGS_JSON	unset	JSON array of extra args (e.g. ["--device","cpu"])

Example:

export PI_NOTIFY_KOKO_VOICE=af_heart
pi

Troubleshooting

1. Confirm extension install: pi list
2. If Pi was open during install/update, run /reload
3. Confirm Koko is on PATH: command -v koko
4. Run a short prompt and wait for completion
5. If no sound but command works, test Koko directly (for example: koko "test")

Development

just deps
just lint
just typecheck
just test
just check
just precommit-install
just precommit-run

Run extension directly during local development:

bun install
pi --no-extensions -e ./src/index.ts

Publishing

Manual publish (@rbright/pi-notify-koko):

bun run check
npm publish --access public

Automated publish via GitHub Actions (.github/workflows/publish.yml) runs on:

• workflow_dispatch
• tag pushes matching v*

Required repository secret:

• NPM_TOKEN (npm token with publish permission)