robhicks/claude-diary-mcp-server

Claude Diary MCP Server

A fast, memory-safe MCP (Model Context Protocol) server written in Rust that provides tools to query your Claude diary entries stored in SQLite.

Features

• get_today_diary: Get diary entries for today
• get_yesterday_diary: Get diary entries for yesterday
• get_diary_by_date: Get diary entries for a specific date (YYYY-MM-DD format)
• get_recent_sessions: Get recent diary sessions (configurable limit)

Prerequisites

• Rust (1.75 or later)
• SQLite database with diary entries (created by the Claude diary hook)

Setup

1. Clone and build:

   git clone https://github.com/robhicks/claude-diary-mcp-server
   cd claude-diary-mcp-server
   cargo build --release
   

2. Configure Claude Code: Add this MCP server to your Claude Code configuration:

   {
     "mcpServers": {
       "diary": {
         "command": "/path/to/claude-diary-mcp-server/target/release/claude-diary-mcp-server"
       }
     }
   }
   

   Or use the MCP configuration directly:

   claude --mcp-config /path/to/claude-diary-mcp-server/mcp-config.json
   

Usage

Once configured, you can use these tools in Claude Code:

Get Today's Entries

Use the get_today_diary tool to see what I worked on today

Get Yesterday's Entries

Use the get_yesterday_diary tool to see what I worked on yesterday

Get Specific Date

Use the get_diary_by_date tool to see what I worked on 2025-08-25

Get Recent Sessions

Use the get_recent_sessions tool to show my last 10 sessions

Database Schema

The server reads from the SQLite database created by the diary hook:

• sessions: Main session records with timing
• accomplishments: What was accomplished in each session
• objectives: Session goals inferred from user prompts
• issues: Problems encountered during sessions
• tool_usage: Which Claude Code tools were used

Development

Build for development:

cargo build

Run the server:

cargo run

Run tests:

cargo test

Performance

This Rust implementation provides:

• ⚡ Fast startup times
• 🔒 Memory safety without garbage collection
• 📦 Single statically-linked binary
• 🚀 Concurrent query processing with async/await

Output Format

The tools return formatted markdown with:

• Session timestamps and durations
• Accomplishments grouped by category
• Session objectives
• Issues encountered
• Tool usage statistics

Perfect for getting context on your recent work or reviewing progress!