Guards

Flags accessibility misses as Claude writes UI: images without alt, unlabeled buttons, clickable divs.

Unlock achievements as you work: first commit, 100 green test runs, a week-long streak and more.

Ready-made subagents for focused jobs: debugger, test writer, doc writer and migrator.

Writes every action Claude takes to an append-only JSONL audit log.

Snapshots your work tree before every editing turn and lets you /rollback to any checkpoint.

Formats every file Claude edits with the right formatter for its language.

Dumps your local database before every migration so a bad one is one command away from undo.

/bash-history lists recent shell commands Claude ran, with exit status and duration.

Stops full reads of huge files and nudges toward offset/limit or grep.

Compares bundle size after each build and warns when it grows.

Celebrates when failing tests go green again.

Keeps CHANGELOG.md's Unreleased section up to date as you commit.

Checks edited GitHub Actions workflows and warns about actions not pinned to a version.

Warns before commands that create expensive cloud resources like GPU instances or large databases.

Adds configurable Co-authored-by trailers to commits Claude makes.

Shows who owns a file (from CODEOWNERS) as Claude edits it.

Suggests Claude Code commands and mods that fit the way you work.

Suggests /compact at natural breakpoints, before the context gets tight.

/components lists your existing UI components so Claude reuses them instead of creating duplicates.

Detects merge-conflict markers and walks you through resolving each one.

Keeps the context lean automatically: trims noise, picks the right moment to compact and shows the tokens it saved.

Checks that the colors Claude changes in CSS meet WCAG AA contrast.

Flags pasted code that carries someone else's license or copyright header.

Flags weak cryptography: MD5 or SHA1 for passwords, Math.random for tokens, ECB mode, hard-coded IVs.