Cairn
Second brain as plain Markdown in your repo: search, notes, capture, journal, task queue.
- tools
- 13
- transport
- STDIO
- last updated
- Nov 13, 2026
Tools
13 toolsPublic tool metadata for what this MCP can expose to an agent.
searchFind notes by text, type, status or tag.
Find notes by text, type, status or tag.
No parameter schema in public metadata yet.
read_noteRead one note with its backlinks.
Read one note with its backlinks.
No parameter schema in public metadata yet.
list_notesFind notes by type, status or tag.
Find notes by type, status or tag.
No parameter schema in public metadata yet.
contextThe project brief.
The project brief.
No parameter schema in public metadata yet.
recentWhat changed lately.
What changed lately.
No parameter schema in public metadata yet.
code_todosTODO/FIXME comments in the code.
TODO/FIXME comments in the code.
No parameter schema in public metadata yet.
captureAdd an idea, task or decision.
Add an idea, task or decision.
No parameter schema in public metadata yet.
logWrite to today's journal.
Write to today's journal.
No parameter schema in public metadata yet.
update_noteChange status or tags (refuses to overwrite newer edits).
Change status or tags (refuses to overwrite newer edits).
No parameter schema in public metadata yet.
precedent_briefThe brief for a goal from your own history.
The brief for a goal from your own history.
No parameter schema in public metadata yet.
queue_nextThe next open #queue item.
The next open #queue item.
No parameter schema in public metadata yet.
queue_addQueue a follow-up instead of asking.
Queue a follow-up instead of asking.
No parameter schema in public metadata yet.
precedent_logRecord what shipped and what you corrected.
Record what shipped and what you corrected.
No parameter schema in public metadata yet.
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Cairn: a second brain that lives inside your repo.
A second brain that lives inside your repo.
Capture ideas, brainstorm, record decisions and move tasks, all as plain Markdown next to your code.
Try it live · See it in action · Highlights · Landing page · More by juw12
Details
- Repository
- github.com/juw12/cairn
- Website
- github.com/juw12/cairn
- Categories
- Documents & Knowledge, Search & Web Crawling, Productivity & Office
- Package
https://github.com/juw12/cairn/releases/download/mcp-v1.0.0/cairn.mcpb- Transport
- STDIO
- Registry
- MCP registry, active
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