Claude Code Canary

Claude Code Canary

**Deterministic regression testing and compatibility intelligence for Claude Code.**

Claude Code changes. Your `CLAUDE.md`, hooks, plugins, MCP servers and permission rules change too. Canary gives you a repeatable answer to the question that normally becomes guesswork:

**What broke, and which Claude Code release first broke it?**

Canary runs the same scenario from the same Git commit in disposable worktrees, captures tool/token/reported-cost/duration metrics, checks deterministic assertions, compares releases, bisects regressions and builds full plugin compatibility matrices.

The 30-second demo

Plugin author? Turn your plugin surface into smoke tests, then test every generated scenario across recent Claude Code releases:

claude-canary plugin-init ./my-plugin
claude-canary plugin-suite --plugin ./my-plugin --last 10

You get one report like this:

| Claude Code | load | command-review | skill-api | hook-stop | mcp-github | Overall |
|-------------|:----:|:--------------:|:---------:|:---------:|:----------:|---------|
| 2.1.231     |  ✅  |       ✅       |    ✅     |    ✅     |