christianandClaude Opus 5.5
f09d20cb84
- add() refuses to create an id that load() would reject; the CLI reports it - save() creates the temp file with the real file's mode (and O_EXCL), so a private list is never briefly world-readable; one stat call; symlink resolution inlined; comment states the rename trade-offs - CLI rejects ids with leading zeros and id 0 - Tests for trimming, the bare 'todo' default, and the id limit 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