Zoltan KochanandClaude Opus 5.5
6f95957063
* docs: lint prose with Vale Add Vale with an in-repo style, .vale/styles/pnpm, that turns the writing rules in AGENTS.md and the Google developer documentation style guide into lint rules. The stock Vale packages (Google, Microsoft, RedHat, write-good) were too noisy to block on, for example 1,300 passive-voice hits in the v12 docs alone, so the rules are written for this repo, following the GitLab model. Each one links the guideline it enforces. Levels: - error, fails CI: dashes, plain-word substitutions, condescending words, "please", "note that", hedges, puffery, optional plurals, exclamation marks, ellipses, curly quotes, generic link text, product spellings, sentence-case headings, repeated words, double spaces, implementation history in comments; in changesets, bold or italic emphasis, internal names and release-line names. - warning: future tense, sentences over 30 words, "instead of" and "so that" tails in changesets. - suggestion: passive voice. .vale.ini scopes the rules. Docs get every rule. Contributor Markdown and code comments keep dashes and headings as warnings until their roughly 8,100 em dashes are rewritten. Released changesets stay in .changeset/ and are not rewritten, so lint-prose.mjs lints only the changesets added since PROSE_BASE (the PR base in CI). The prose workflow installs a pinned, checksum-verified Vale release and runs `pnpm lint:prose`. The rest of this change rewrites the existing docs, READMEs, contributor Markdown, and code comments to pass the error-level rules. Only prose and comment text changed. Renamed headings keep their anchors. Spelling stays with cspell, which checks identifiers that Vale does not see. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * docs: keep prose lint from flattening meaning --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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Fast, disk space efficient package manager:
- Fast. Up to 2x faster than the alternatives (see benchmark).
- Efficient. Files inside
node_modulesare linked from a single content-addressable storage. - Great for monorepos.
- Strict. A package can access only dependencies that are specified in its
package.json. - Deterministic. Has a lockfile called
pnpm-lock.yaml. - Works as a Node.js version manager. See pnpm runtime.
- Works everywhere. Supports Windows, Linux, and macOS.
- Battle-tested. Used in production by teams of all sizes since 2016.
- Experimental Rust port. Includes pacquet, an experimental port of the CLI written in Rust.
- See the full feature comparison with npm and Yarn.
To quote the Rush team:
Microsoft uses pnpm in Rush repos with hundreds of projects and hundreds of PRs per day, and we've found it to be very fast and reliable.
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Background
pnpm uses a content-addressable filesystem to store all files from all module directories on a disk. When using npm, if you have 100 projects using lodash, you will have 100 copies of lodash on disk. With pnpm, lodash will be stored in a content-addressable storage, so:
- If you depend on different versions of lodash, only the files that differ are added to the store.
If lodash has 100 files, and a new version has a change only in one of those files,
pnpm updatewill only add 1 new file to the storage. - All the files are saved in a single place on the disk. When packages are installed, their files are linked from that single place consuming no additional disk space. Linking is performed using either hard-links or reflinks (copy-on-write).
As a result, you save gigabytes of space on your disk and you have a lot faster installations.
If you'd like more details about the unique node_modules structure that pnpm creates and
why it works fine with the Node.js ecosystem, read this small article: Flat node_modules is not the only way.
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Getting Started
Benchmark
pnpm is up to 2x faster than npm and Yarn classic. See all benchmarks.
Benchmarks on an app with lots of dependencies:
License
MIT, except the pnpr/ directory, which is source-available under the PolyForm Shield License 1.0.0.