Individual skill

artifact-arena

Use when asked to run /artifact-arena to generate and judge competing artifact implementations. Not for remote, credential, publish, deploy, or irreversible changes.

.devin/skills/artifact-arena/SKILL.md

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# Artifact arena

## Contract

| Field | Bound contract |
|---|---|
| Trigger | User runs /artifact-arena to generate and judge competing artifact implementations. |
| Authority | Reversible local: writes only local candidate worktrees and the synthesis artifact; rollback is discarding candidate worktrees and deleting the synthesis note. No remote mutation. |
| Side effect | Spawns isolated candidate workers, each writing to its own local path. No remote, credential, VCS, or published mutation. |
| Done | One verified synthesis with provenance and rejection reasons. |

## Inputs

- Task prompt (required): the artifact each candidate must produce, stated as a single contract.