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Setup TS Deep Modules

Installs dependency-cruiser rules so TypeScript packages only expose their root entry-point files.

Source Download skill
Repository
mattpocock/skills
Stars
309,658
Licence
MIT
Files
2 files

What it does

When installed, this skill tells an AI agent how to set up architectural boundaries in a TypeScript repository. It adds the dependency-cruiser tool, writes a config that blocks other code from importing a package's internal subfolders, adds a lint:boundaries check alongside typecheck, creates a starter example package, and documents the convention for future agents. The agent then verifies the rules actually fail on a deliberate violation.

Great for

  • TypeScript teams that want packages to behave like deep modules with small public interfaces
  • Developers who keep hitting accidental deep imports between packages in a monorepo-style src/packages folder
  • Maintainers who want agents to discover import boundaries from a README and CLAUDE.md or AGENTS.md pointer

Skip it if

  • Projects that are not TypeScript or do not use a packages folder layout, since the rules are path-based and the skill assumes this structure
  • Repos that already use a different boundary tool or a heavily customised dependency-cruiser config, because the skill may overwrite or conflict with it (it asks to merge, but this is still intrusive)

Try asking

  • “Set up dependency-cruiser so each package in src/packages only exposes its root entry points”
  • “Add a lint:boundaries script and fold it into our existing check command”
  • “Scaffold an example package showing an entry point with a hidden lib folder”
Step-by-step guide: how to use Setup TS Deep ModulesInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 2 original files, the MIT licence and an attribution note.

    setup-ts-deep-modules.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip setup-ts-deep-modules.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip setup-ts-deep-modules.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Review the generated .dependency-cruiser.cjs and the changes to package.json before committing, since the agent edits config and scripts.
  • Check the README and CLAUDE.md or AGENTS.md changes, which the skill also writes.
  • Delete the example package once you have copied its pattern, since it is only a template.

What's inside

  • agents/openai.yaml
  • SKILL.md

Redistributed unmodified from mattpocock/skills under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.