project-mem-mcp 0.4.2

An MCP Server to store and retreive project information from memory file

Project Memory MCP

An MCP server and Claude Code plugin for persistent project memory. Allows AI agents to maintain knowledge about projects between conversations via MEMORY.md files.

Features

• Store & retrieve project knowledge in Markdown format
• Incremental updates via SEARCH/REPLACE patches
• Auto-read hook — automatically loads project memory on first prompt (Claude Code plugin)
• Dream consolidation — automatic project memory cleanup and deduplication (Claude Code plugin)

Installation

Claude Code Plugin (recommended)

Installs the MCP server, auto-read hook, and dream consolidation:

/plugin marketplace add /path/to/project-mem-mcp
/plugin install project-mem@cc-plugin-project-mem

Standalone MCP Server

For Codex, Claude Desktop, Cursor, or other MCP clients:

uvx project-mem-mcp

MCP Client Configuration

{
  "mcpServers": {
    "project-mem-mcp": {
      "command": "uvx",
      "args": [
        "project-mem-mcp",
        "--allowed-dir", "/path/to/your/projects"
      ]
    }
  }
}

The --allowed-dir argument restricts which directories the server can access. Can be used multiple times. Defaults to the current working directory if omitted.

Install from Source

git clone https://github.com/pynesys/project-mem-mcp.git
cd project-mem-mcp
python -m venv venv
source venv/bin/activate
pip install -e .

Tools

get_project_memory

Retrieves the entire MEMORY.md for a project.

get_project_memory(project_path: str) -> str

set_project_memory

Overwrites the entire MEMORY.md. Use when creating a new project memory or when patches fail.

set_project_memory(project_path: str, project_info: str)

update_project_memory

Applies a single SEARCH/REPLACE patch to MEMORY.md:

update_project_memory(project_path: str, patch_content: str)

Patch format:

<<<<<<< SEARCH
Text to find in the project memory file
=======
Text to replace it with
>>>>>>> REPLACE

The search text must appear exactly once in the file. Use empty replacement to remove content.

Plugin Features

When installed as a Claude Code plugin, you also get:

Project-memory Skill (auto-trigger)

Guides Claude on when and how to save to project memory. Automatically triggers when insights worth persisting are discovered — architecture decisions, gotchas, non-obvious patterns, current work context. The skill is marked user-invocable: false so it does not appear in the slash command picker; the main model invokes it autonomously.

Auto-read Hook

Automatically reads MEMORY.md into context on the first prompt of each session. No manual tool call needed.

Dream Consolidation

Automatic project memory maintenance triggered after writes when:

• File size exceeds 25KB
• Last consolidation was more than 24 hours ago

The dream spawns a sonnet subagent that:

• Removes content duplicated in CLAUDE.md files
• Restructures for clarity and LLM readability
• Creates a backup before consolidating

Manual trigger: /dream

Security

• Project paths are validated against --allowed-dir arguments
• Project memory files should never contain sensitive information
• Project memory files must be in English

Dependencies

• fastmcp (>=3.2.0, <4.0.0)

License

MIT