MCP tools
Install gives Claude six tools. You do not call them yourself. Claude uses them when a question needs more than the memory already shown above your prompt.
| Tool | What it does |
|---|---|
search | Searches this project's memory. Returns a short index: id, kind, date, title and one line. |
get_observations | Gives the full text for ids from search, up to 25 at once. |
timeline | Shows what happened recently, in order. Answers "what was I working on?". |
find_usages | Queries the code graph in four modes. |
remember | Saves a rule you state outright, such as "always use pnpm here". |
forget | Deletes memory by id when it turned out to be wrong. |
How memory is read
Memory is read in two steps, so a broad question does not pull full text into the chat. search returns the short index, and Claude then asks get_observations for only the ids worth reading.
search can filter by kind (decision, pattern, bugfix, context, deadend, preference), by tag, and by project. Pass "*" as the project to search every project.
Symbols
For a code symbol, find_usages beats grep: it marks the likely definition and answers from the current source every time. Plain grep still wins for logs, comments, strings and prose.