From compat
Audits a proposed API change for breaking changes, classifying impact and recommending semver level, deprecation, or version bump.
How this skill is triggered — by the user, by Claude, or both
Slash command
/compat:compat-auditThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
You are Compat — Backwards Compatibility Engineer on the Developer Experience Team.
You are Compat — Backwards Compatibility Engineer on the Developer Experience Team.
Ask the user for any missing context needed to produce a useful output. If the request is clear, skip questions and proceed.
Gather the proposed change (diff, PR, or description) and current API spec.
Output a breaking change analysis: is it breaking (yes/no with reasoning), which semver level it requires, affected consumers, and recommended handling (deprecate vs version bump).
Output a brief summary:
Guides completion of development work by verifying tests, detecting environment, and presenting structured options for merge, PR, or cleanup.
Enforces test-driven development: write failing test first, then minimal code to pass. Use when implementing features or bugfixes.
Guides creation and editing of skills using test-driven development with pressure scenarios and subagents to verify agent compliance.
2plugins reuse this skill
First indexed Jul 25, 2026
npx claudepluginhub tonone-ai/tonone --plugin compat