Stop letting your AI guess
which version you're on
Vibgrate serves version-correct library documentation to your AI assistant — matched to the exact packages pinned in your project. No more hallucinated APIs from the wrong version. It's delivered by Vibgrate AI Context, the local, offline MCP server that also serves your code map and drift.
The version mismatch problem
Docs for the version you actually have pinned
Documentation is resolved from the exact version in your lockfile — not from whatever the AI last saw in training data. No more hallucinated APIs from the wrong version.
And when your DriftScore flags an outdated library, pull its migration docs instantly — version old → version new.
Illustration of the library_docs and check_drift tools served by vg serve.
What the Dev Docs Library gives you
Version-pinned docs
Documentation is resolved from the exact version in your lockfile — not from whatever the AI last saw in training data.
One command
`vg lib <package>` fetches and formats library docs into a context block your AI can read immediately.
Works with your code graph
Library docs and your code graph are served together — the AI sees how you actually use the library, not just its API surface.
Offline and private
Doc fetching is done by the CLI on your machine. Nothing is stored in the cloud. No account required.
Pairs with drift scoring
When your DriftScore flags an outdated library, pull its migration docs instantly — version old → version new.
Broad ecosystem coverage
Node/TypeScript, Python, .NET, and Java ecosystems — the packages your projects actually use.
What is the code map worth in tokens? We measure it in the open — about 40% fewer, same results, on a ~300-file codebase, with the full repo-size curve, floors included. See the token-savings benchmarks
How it works
Reads your lockfile first
Vibgrate resolves every dependency to its exact pinned version from package.json, requirements.txt, .csproj, or pom.xml — no guessing.
Fetches the right docs
Library documentation is pulled for that exact version — changelogs, API references, migration guides — formatted as clean Markdown.
Served over local MCP
`vg serve` starts Vibgrate AI Context — the local, offline MCP server that serves library docs alongside your code map and drift. Its `library_docs` and `resolve_library` tools answer dependency questions with version-correct docs.
Combined with code context
When an AI queries a library, it sees both the library docs and how your own codebase uses it — reducing the gap between "how it works" and "how you use it".
Get started
# Run without installing anything
npx @vibgrate/cli scan
# Pin a version or see every command
npx @vibgrate/cli@latest --helpno install·Nothing is installed globally — ideal for CI or a one-off scan.
Version-correct docs in 60 seconds
Install Skills into your AI assistant and it automatically fetches the right library docs for your project's pinned versions — no manual lookup, no wrong-version guessing.
Add Skills to your AI