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duet

Use when the user invokes /duet, says pair on this, or faces aesthetic, architectural, or irreversible decisions. Not for one-shot fork resolution: use decide.

.devin/skills/duet/SKILL.md

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Observed behavior
Instructions only
Last checked
Nov 4, 2026

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55
Repository last updated
Sep 28, 2026
License
Apache-2.0

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# Duet

## Contract

| Field | Bound contract |
|---|---|
| Trigger | /duet, "pair with me", or facing aesthetic, architectural, or irreversible decisions |
| Authority | Read-only. No file, VCS, credential, paid, published, deployed, or remote mutation. Emits ask-user batches and fork picks in chat only; consent is obtained through those picks. Irreversible actions are asked, not taken. |
| Side effect | ask-user batches and fork picks in chat; asks before irreversible actions; retains agreed architecture on disengage |
| Done | Every real fork consented before execution, no review-bottleneck diff produced, irreversible checkpoints asked, picks retained on disengagement |

## Inputs

The user's task prompt or current work context. Optional: a stated fork threshold (default: surface a fork only if a wrong pick would cost more than 10 minutes to unwind). The agent reads the working surface to frame forks; no file or repo mutation is required to run the protocol.