ccf/agentcairn

Overview

Agentcairn is a Python tool that gives AI coding agents long-term, cross-project memory by using an Obsidian vault as the source of truth. It operates without a daemon or opaque databases, keeping memory fully under the user's control.

Best for

Best for
Developers who want transparent, file-based memory for AI coding agents using Obsidian

Use cases

• Persisting agent context across multiple coding sessions
• Sharing memory between different AI coding agents
• Maintaining a human-readable, editable memory store in Obsidian

How to use

Install

uvx agentcairn

Tested with

Claude Code, Codex, Cursor

Example client config

auto_recall       = true\nauto_recall_k     = 3\nauto_recall_scope = "project"

Notes

Agentcairn is a Python tool that gives AI coding agents long-term, cross-project memory by using an Obsidian vault as the source of truth. It operates without a daemon or opaque databases, keeping memory fully under the user’s control.

16 stars on GitHub. Last updated 2026-07-13. Licensed Apache-2.0.

Use cases

• Persisting agent context across multiple coding sessions
• Sharing memory between different AI coding agents
• Maintaining a human-readable, editable memory store in Obsidian

Pros

• Memory is stored in plain Markdown files, not a proprietary database
• No background daemon required, reducing complexity
• Cross-project memory helps agents retain context over time

Cons

• Requires an Obsidian vault, adding a dependency
• Limited to Python-based agent workflows
• Small community (16 stars) may mean less support and fewer integrations

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.