--- name: monorepo-navigator-7d179c201204 description: "Monorepo Navigator" --- # Monorepo Navigator **Tier:** POWERFUL **Category:** Engineering **Domain:** Monorepo Architecture / Build Systems --- ## Overview Navigate, manage, and optimize monorepos. Covers Turborepo, Nx, pnpm workspaces, and Lerna. Enables cross-package impact analysis, selective builds/tests on affected packages only, remote caching, dependency graph visualization, and structured migrations from multi-repo to monorepo. Includes Claude Code configuration for workspace-aware development. --- ## Core Capabilities - **Cross-package impact analysis** — determine which apps break when a shared package changes - **Selective commands** — run tests/builds only for affected packages (not everything) - **Dependency graph** — visualize package relationships as Mermaid diagrams - **Build optimization** — remote caching, incremental builds, parallel execution - **Migration** — step-by-step multi-repo → monorepo with zero history loss - **Publishing** — changesets for versioning, pre-release channels, npm publish workflows - **Claude Code config** — workspace-aware CLAUDE.md with per-package instructions --- ## When to Use Use when: - Multiple packages/apps share code (UI components, utils, types, API clients) - Build times are slow because everything rebuilds when anything changes - Migrating from multiple repos to a single repo - Need to publish packages to npm with coordinated versioning - Teams work across multiple packages and need unified tooling Skip when: - Single-app project with no shared packages - Team/project boundaries are completely isolated (polyrepo is fine) - Shared code is minimal and copy-paste overhead is acceptable --- ## Tool Selection | Tool | Best For | Key Feature | |---|---|---| | **Turborepo** | JS/TS monorepos, simple pipeline config | Best-in-class remote caching, minimal config | | **Nx** | Large enterprises, plugin ecosystem | Project graph, code generation, affected commands | | **pnpm workspaces** | Workspace protocol, disk efficiency | `workspace:*` for local package refs | | **Lerna** | npm publishing, versioning | Batch publishing, conventional commits | | **Changesets** | Modern versioning (preferred over Lerna) | Changelog generation, pre-release channels | Most modern setups: **pnpm workspaces + Turborepo + Changesets** --- ## Turborepo → See references/monorepo-tooling-reference.md for details ## Common Pitfalls | Pitfall | Fix | |---|---| | Running `turbo run build` without `--filter` on every PR | Always use `--filter=...[origin/main]` in CI | | `workspace:*` refs cause publish failures | Use `pnpm changeset publish` — it replaces `workspace:*` with real versions automatically | | All packages rebuild when unrelated file changes | Tune `inputs` in turbo.json to exclude docs, config files from cache keys | | Shared tsconfig causes one package to break all type-checks | Use `extends` properly — each package extends root but overrides `rootDir` / `outDir` | | git history lost during migration | Use `git filter-repo --to-subdirectory-filter` before merging — never move files manually | | Remote cache not working in CI | Check TURBO_TOKEN and TURBO_TEAM env vars; verify with `turbo run build --summarize` | | CLAUDE.md too generic — Claude modifies wrong package | Add explicit "When working on X, only touch files in apps/X" rules per package CLAUDE.md | --- ## Best Practices 1. **Root CLAUDE.md defines the map** — document every package, its purpose, and dependency rules 2. **Per-package CLAUDE.md defines the rules** — what's allowed, what's forbidden, testing commands 3. **Always scope commands with --filter** — running everything on every change defeats the purpose 4. **Remote cache is not optional** — without it, monorepo CI is slower than multi-repo CI 5. **Changesets over manual versioning** — never hand-edit package.json versions in a monorepo 6. **Shared configs in root, extended in packages** — tsconfig.base.json, .eslintrc.base.js, jest.base.config.js 7. **Impact analysis before merging shared package changes** — run affected check, communicate blast radius 8. **Keep packages/types as pure TypeScript** — no runtime code, no dependencies, fast to build and type-check --- Source attribution: LeoYeAI Original project: https://github.com/LeoYeAI/openclaw-master-skills/blob/e5199b56ae1ff72e141586c17695563486c46702/skills/monorepo-navigator/SKILL.md License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Dave AI. ## Upstream license notice MIT License Copyright (c) 2026 MyClaw.ai (LeoYeAI) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Dave AI resource metadata Creator / publisher: LeoYeAI Original project: https://github.com/LeoYeAI/openclaw-master-skills/blob/e5199b56ae1ff72e141586c17695563486c46702/skills/monorepo-navigator/SKILL.md Attribution basis: Source repository record Fields of work: Development & Engineering, Product Management Roles: Backend Developer, DevOps / SRE, Frontend Developer, Full-Stack Developer, Product Manager Specialties: Backend, DevOps Tools: Changesets, Lerna, Nx, Turborepo, Pnpm Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: ec48fb593c9fb636582f144aceaac4d41fcd6daca29aa8ae00b50ad31b315b45