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kit-cli

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(ePost) Use when developing the epost-kit CLI — cac commands, @inquirer/prompts, vitest tests, TypeScript patterns

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  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/development/kit-cli/SKILL.md

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CLI Development Patterns

Tech Stack

  • Runtime: Node.js 20+
  • Language: TypeScript 5+
  • CLI Framework: cac
  • Prompts: @inquirer/prompts
  • Testing: vitest
  • Build: tsc + tsc-alias (no bundler)

Project Structure

epost-agent-kit-cli/   (standalone repo at /Users/than/Projects/epost-agent-kit-cli)
├── src/
│   ├── cli.ts              — Entry point, cac setup + fuzzy command suggestions
│   ├── commands/            — Command implementations (init, onboard, update, doctor, lint, fix-refs, verify)
│   ├── domains/             — Domain-driven modules
│   │   ├── health-checks/   — integrity-checker, skill-health-checks, doctor checks
│   │   ├── packages/        — package-resolver, profile-loader
│   │   ├── validation/      — ref-validator (lint + fix-refs)
│   │   └── ...
│   ├── services/            — File operations, template engine, transformers
│   ├── shared/              — Cross-cutting: logger, file-system, constants, path-resolver
│   └── types/               — TypeScript interfaces (PackageManifest, FileOwnership, etc.)
├── tests/
│   ├── unit/                — Unit tests by domain
│   └── integration/         — Integration tests for commands
├── dist/                    — Compiled output
└── package.json

Key Commands

  • lint — Validate references across installed agent/skill/command markdown files
  • fix-refs — Auto-fix stale references using rename maps from package.yaml (--apply to write)
  • verify — Full pre-release audit: integrity + lint + health checks + dependency graph (--strict, --json)
  • doctor — Verify installation and environment health
  • init — Initialize epost-agent-kit in existing project

Key Conventions

  • Custom lightweight YAML parser (parseSimpleYaml() in package-resolver.ts) — no js-yaml dependency
  • File ownership tracking with SHA256 checksums (.epost-metadata.json)
  • Settings merge strategies: base (overwrite), merge (deep), skip (no-op)
  • Profile-based package selection via profiles/profiles.yaml
  • Topological sort for dependency resolution (layer-based install order)
  • Skill index auto-generation from installed SKILL.md files
  • Import paths use @/ alias (e.g., @/shared/logger.js, @/domains/packages/package-resolver.js)

Testing

  • Unit tests with vitest
  • Run: cd /Users/than/Projects/epost-agent-kit-cli && npm test