What is the Chirp Tern plugin?

A small robot voice for Tern: when a coding agent finishes its turn or stops to wait for you, Chirp plays one short, soft beep, and the beep's shape tells you how the turn went.

How does Jev pick the sound?

Jev reads the end of the agent's last message and answers six typed questions: mood, voice, pitch, pace, energy, and whether you are being asked something. It returns probabilities, not prose, which the synthesizer maps to sound.

What do the different beeps mean?

A question rises, a win arcs up with a sparkle and trouble droops, per the README. Mixed feelings get two syllables: the first says what happened, the second what the agent wants.

What is Tern, the host for Chirp?

The agent environment Chirp plugs into, linked as stencil.so/tern in the README. The digest excerpt does not describe Tern itself beyond that, so only the plugin's role is evidenced here.

Does the same message always sound the same?

Yes. Because Jev answers with numbers and the Luau synthesizer is deterministic, the README says the same message always sounds the same and two different messages rarely do.

Where did the idea come from?

The README credits Yohei Nakajima's Beep Jev, which gave Jev sound and colour parameters to choose from instead of words, as the origin of the concept.

What is its status and license?

MIT-licensed, created and pushed 2026-10-08, with 3 stars and one fork in the digest metadata. Install steps and key configuration are not evidenced because the excerpt ends at the spectrogram caption.

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CommunityJev Integrations & Adapters

Chirp

A Tern plugin that gives coding-agent notifications a tiny robot voice: Jev reads the end of the agent's last message and answers six typed questions, including mood and pitch, that a pure-Luau synthesizer turns into a short beep.

See highlights Open github.com

Stars: 3
Language: Luau
License: MIT
Reading time: 2 min
Published by: Community
Author: Noctivoro
Last verified: Oct 2026

noctivoro/tern-chirp

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Chirp: a tiny robot voice for Tern that beeps when your coding agent finishes or needs you. Jev picks the mood; a pure-Luau synth sings it.

Forks: 1
Last pushed: Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.

Tagscommunity github luau audio tern

Works forJev for Classification

Used inJev for Software & DevTools

Capabilities: Open sourceRequires API key

Highlights

Tern plugin that plays one short, soft beep when a coding agent finishes its turn or stops to wait for you.
Jev reads the end of the agent's last message and answers six typed questions: mood, voice, pitch, pace, energy and whether you are asked something.
It returns probabilities, not prose; a small Luau synthesizer turns the numbers into sound, so the same message always sounds the same.
Mixed feelings get two syllables: what happened, then what the agent wants. A question rises, a win arcs up with a sparkle, trouble droops.
The idea comes from Yohei Nakajima's Beep Jev; MIT-licensed, created and pushed 2026-10-08, one fork.

Watch out

README and GitHub metadata reviewed 2026-10-17; the excerpt ends at the spectrogram caption, so install steps, the full sound catalogue and any Jev key configuration are not evidenced. The implementation language is Luau, which this catalog does not track.

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