Context7 for documentation
Documentation work reads in two directions, consuming reference docs while you code and producing the docs your team relies on. Context7 is the top pick of four here for the reading side: it pulls version-accurate library docs and code examples into context on demand, so when the agent documents usage it cites the current API rather than a stale one.
That reading accuracy is foundational, which is why it leads. The other picks handle the writing side, a local Git reader for changelogs and two knowledge-base back ends for where the docs actually live.
How Context7 fits
The two tools are resolve-library-id, which maps a library or product name to a Context7 ID, and query-docs, which returns current documentation and examples scoped to the question. When the agent writes a how-to or an API reference, it checks the live docs so the snippets and signatures it publishes are correct as of the installed version.
Context7 reads docs; it does not write or store them. Git reads commit history, which is what you want when assembling a changelog from real changes. Notion and Obsidian are the back ends where finished docs live, Notion for a shared hosted workspace, Obsidian for a local Markdown vault, and they are where the agent edits actual pages. The natural setup is Context7 feeding accurate source material, Git supplying history, and a knowledge-base server holding the output. Pick the back end that matches where your docs already are.
Tools you would use
| Tool | What it does |
|---|---|
| resolve-library-id | Resolves a package or product name into a Context7-compatible library ID, ranking matches by the user's query. |
| query-docs | Retrieves up-to-date documentation and code examples from Context7 for a resolved library ID, scoped to the user's question. |
FAQ
- How does Context7 help when writing documentation?
- It keeps the technical facts current. query-docs returns up-to-date docs and examples for the library you are documenting, so the API signatures and code snippets you publish match the present release rather than the model's training cutoff.
- Does Context7 store or edit my documentation?
- No. It only retrieves library docs. To write and keep finished documentation, use a back end like Notion or Obsidian, and use Git to read commit history for changelogs.