pnpm

pnpm is a fast, disk space efficient package manager. It uses a content-addressable store to deduplicate packages across all projects on a machine, saving significant disk space. pnpm enforces strict dependency resolution by default, preventing phantom dependencies. Configuration should preferably be placed in `pnpm-workspace.yaml` for pnpm-specific settings. **Important:** When working with pnpm projects, agents should check for `pnpm-workspace.yaml` and `.npmrc` files to understand workspace structure and configuration. Always use `--frozen-lockfile` in CI environments. > The skill is based on pnpm 10.x, generated at 2026-01-28. ## Core | Topic | Description | Reference | |-------|-------------|-----------| | CLI Commands | Install, add, remove, update, run, exec, dlx, and workspace commands | [core-cli](references/core-cli.md) | | Configuration | pnpm-workspace.yaml, .npmrc settings, and package.json fields | [core-config](references/core-config.md) | | Workspaces | Monorepo support with filtering, workspace protocol, and shared lockfile | [core-workspaces](references/core-workspaces.md) | | Store | Content-addressable storage, hard links, and disk efficiency | [core-store](references/core-store.md) | ## Features | Topic | Description | Reference | |-------|-------------|-----------| | Catalogs | Centralized dependency version management for workspaces | [features-catalogs](references/features-catalogs.md) | | Overrides | Force specific versions of dependencies including transitive | [features-overrides](references/features-overrides.md) | | Patches | Modify third-party packages with custom fixes | [features-patches](references/features-patches.md) | | Aliases | Install packages under custom names using npm: protocol | [features-aliases](references/features-aliases.md) | | Hooks | Customize resolution with .pnpmfile.cjs hooks | [features-hooks](references/features-hooks.md) | | Peer Dependencies | Auto-install, strict mode, and dependency rules | [features-peer-deps](references/features-peer-deps.md) | ## Best Practices | Topic | Description | Reference | |-------|-------------|-----------| | CI/CD Setup | GitHub Actions, GitLab CI, Docker, and caching strategies | [best-practices-ci](references/best-practices-ci.md) | | Migration | Migrating from npm/Yarn, handling phantom deps, monorepo migration | [best-practices-migration](references/best-practices-migration.md) | | Performance | Install optimizations, store caching, workspace parallelization | [best-practices-performance](references/best-practices-performance.md) |