Practice — engineering guardrails

Review, debug, TDD, security, performance, and related skills — on disk only after you enable the pack.

Requires pack: practice. See Packs.

npm

npx create-lean-agent-kit@latest . --enable-pack practice

pnpm

pnpm dlx create-lean-agent-kit@latest . --enable-pack practice

yarn

yarn dlx create-lean-agent-kit@latest . --enable-pack practice

bun

bunx create-lean-agent-kit@latest . --enable-pack practice

What it is

The practice pack adds engineering guardrail skills so the agent can run a structured review, debug systematically, follow TDD, and check security / performance / API design — without stuffing those skills into every core install.

After enable + leanagentkit-wire-agent, skills live under .agent/skills/. Some are always available to invoke; a few conditional ones (CI/CD, observability) are advertised in AGENTS.md §7 only when the repo shows matching evidence (usually via leanagentkit-match-stack step 7).

Do I need this pack?

• Enable if you want leanagentkit-review, debug, tdd, security, performance, git-workflow, and related skills available in the project.
• Skip if you only need map + ambient memory + LEARNINGS + convention check — core already includes leanagentkit-check.

Use cases

• Pre-merge review — run leanagentkit-review for a multi-axis findings report before opening a PR.
• Hard bug — leanagentkit-debug forces evidence-first diagnosis instead of shotgun edits.
• New behavior — leanagentkit-tdd keeps red → green → refactor discipline.
• Threat / perf pass — security / performance with checklists under .agent/skills/references/.
• Repo with CI — after match-stack, leanagentkit-ci-cd appears in §7 when CI config is detected.

How it works

Skills in this pack

Skill	Typical use
leanagentkit-review	Multi-axis review before merge
leanagentkit-simplify	Reduce complexity after a feature lands
leanagentkit-git-workflow	Branch / commit discipline
leanagentkit-docs	Documentation updates
leanagentkit-debug	Evidence-first debugging
leanagentkit-tdd	Test-driven implementation
leanagentkit-security	Security checklist pass
leanagentkit-performance	Performance checklist pass
leanagentkit-deprecation	Safe deprecation plans
leanagentkit-api-design	API shape review
leanagentkit-frontend-design	UI/frontend craft checklist
leanagentkit-ci-cd	Conditional — when CI config exists
leanagentkit-observability	Conditional — when observability evidence matches

Registry of practice skills (always-on vs conditional): .agent/practice-skills/registry.md after the pack is installed.

Invoke any skill explicitly:

Read .agent/skills/leanagentkit-review.md and follow it.

Further reading

• Packs — enable / prune
• Stacks — match-stack advertises conditional practice skills in §7
• Caveman — optional terse formatting paired with review / git-workflow
• Getting started