christianandClaude Opus 5.5
ba17376132
- add() uses max id + 1 so ids are never reused after rm - done/rm reject missing, non-numeric and unknown ids; add rejects empty text - load() gives a readable error on bad JSON or non-list data - save() writes a temp file and renames it - CLI checks the command before loading and no longer relies on process.exit for ls - Add regression tests for all of the above Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
claude-playground
A tiny todo CLI that exists to try out Claude Code features.
npm test
npm start -- add "try Claude Code"
npm start -- done 1
npm start -- ls
What's set up
| File | Claude Code feature |
|---|---|
CLAUDE.md |
Project memory, loaded into every session |
.claude/settings.json |
Shared permissions + a hook that syntax-checks .js files after every edit |
.claude/skills/changelog/ |
A custom skill — run /changelog |
.claude/agents/test-writer.md |
A custom subagent — "use the test-writer agent to…" |
Things to try
- "There's a bug in how ids are assigned after removing a todo — find it and fix it with a test."
- "Use the test-writer agent to cover
src/todo.js." - "Add a
--jsonflag tols." then/code-review /changelogafter a few commits- Press
shift+tabto cycle permission modes (e.g. plan mode before a bigger change) /memoryto edit CLAUDE.md,/agentsand/hooksto inspect the setup