Claude Code in practice
The three CLAUDE.md files, auto memory, settings.json permissions, and the commands worth memorizing. Step by step, for a real team.
01Claude Code in Practice, Part 1: Short CLAUDE.md, Strict Permissions
The three CLAUDE.md files, auto memory, settings.json permissions, and the commands worth memorizing. Step by step, for a real team.
02Claude Code in practice, part 2: hooks, MCP and skills, and what goes where
CLAUDE.md says what's required, a skill says how, MCP what's possible, a hook enforces. A PreToolUse block on main, auto-formatting, MCP, a first SKILL.md.
03Claude Code in practice, part 3: subagents, worktrees and a clean context
When a subagent saves context and when it burns 15x the tokens, a git worktree per parallel session, plan mode, and a three-line handoff.
04Claude Code in practice, part 4: in CI, exit 0 isn't success
claude-code-action, claude -p with JSON, and the Agent SDK: a workflow to copy, subscription vs API, cost caps, and five checks after every run.
05Claude Code in practice, part 5: which model, which mode, what it costs
Sonnet, Opus or Haiku per task, effort and fast mode, four permission modes, AGENTS.md vs CLAUDE.md, and reading /usage. A command and a number for each.