Claude Session Restore

Efficiently restore context from previous Claude Code sessions by analyzing session files and git history.

Features

• Multi-Vector Data Collection: Extracts tasks, user messages, tool operations, bash activities, and web searches
• Time-Based Filtering: Filter sessions by last modification time (12-24 hours)
• Efficient Parsing: Tail-based reverse parsing for large session files (2GB+)
• Claude Code Integration: Works seamlessly with Claude Code skill system

Components

1. Session Summary CLI

A command-line tool for analyzing Claude Code session files.

Commands:

• list - List recent sessions with multi-vector summaries
• load - Load full context from a selected session

Example:

# List sessions from last 12 hours
session-summary list

# Extend to 24 hours
session-summary list --max-age-hours 24

# Load full context
session-summary load "/path/to/session-id.jsonl"

2. Claude Code Skill

A skill for Claude Code that enables automatic session restoration.

Usage: Simply say "restore session" or "восстанови сессию" and Claude will:

1. List recent sessions with multi-vector data
2. Let you select which session to restore
3. Analyze the session data and provide context summary
4. Search git history for related commits

Installation

Prerequisites

• Rust 1.70+ (for building from source)
• Claude Code CLI

Build from Source

git clone https://github.com/ZENG3LD/claude-session-restore
cd claude-session-restore
cargo build --release --workspace

The binary will be at target/release/session-summary (or session-summary.exe on Windows).

Install to PATH

Linux/macOS

cargo install --path session-summary

Windows (Git Bash/MSYS2)

cargo build --release
cp target/release/session-summary.exe ~/.local/bin/

Install Claude Code Skill

# Copy skill to Claude Code skills directory
mkdir -p ~/.claude/skills/restore-session
cp skill/SKILL.md ~/.claude/skills/restore-session/

Usage

CLI Tool

List recent sessions:

$ session-summary list

Recent Sessions:

1. 8f59d651-cada-4484-9153-5cc577137486
   Jan 26 04:33 | 32.42 MB | [projects] | Agent tasks
   📋 Tasks: Fix the dropdown z-order problem... → Fix the dropdown...
   💬 User: дропдауны либо с 0 опасити... → закомить работу...
   🔧 Tools: Bash, Bash, Bash, Write

2. 4e0b5d3d-c6d1-497d-9c6f-96e83980c7a0
   Jan 26 05:47 | 103.69 MB | [projects] | Agent tasks
   📋 Tasks: Implement MOEX ISS API connector...
   💬 User: <ide_opened_file>... → да, какие проблемы выявлены...
   🔧 Tools: Bash, Bash, Task, Task

To load a session, use:
  1. session-summary load "C:\Users\...\8f59d651-cada-4484-9153-5cc577137486.jsonl"
  2. session-summary load "C:\Users\...\4e0b5d3d-c6d1-497d-9c6f-96e83980c7a0.jsonl"

Load full context:

$ session-summary load "path/to/session.jsonl"

═══════════════════════════════════════
Session: 8f59d651-cada-4484-9153-5cc577137486
═══════════════════════════════════════
Date: 2026-01-26 04:33:18
Size: 32.42 MB
Topic: Agent tasks

Agent Tasks 📋 (126 tasks)
  1. СРОЧНО! Dropdown перекрывается другими элементами...
  2. Fix dropdown z-order problem in Chart Settings modal
  ...

User Messages 💬 (2 messages)
  1. закомить работу в ваших крейтах
  2. итого подведи итог что мы сделали...

Tool Operations 🔧 (7 operations)
  1. Task
  2. Bash
  ...

Files Modified 📁 (17 files)
  1. zengeld-terminal/ui/chart_settings.rs
  2. zengeld-terminal/ui/dropdown.rs
  ...

Git Branch: zengeld-chart

Claude Code Skill

In a new Claude Code session:

User: restore session

Claude: I'll list recent sessions from the last 12 hours...
[Shows multi-vector data for each session]

Which session would you like to restore? (1-3)

User: 1

Claude: [Analyzes session data and provides context summary]

Architecture

Multi-Vector Data Collection

The tool collects raw data from multiple event sources:

• 📋 Agent Tasks - What agents were doing
• 💬 User Messages - User requests and decisions
• 🔧 Tool Operations - Files read/edited and operations performed
• ⚙️ Bash Activities - Build/test commands and git operations
• 🔍 Web Searches - Research topics and API documentation

Efficient Parsing

• Uses tail command to read only the end of session files
• Parses events in reverse order
• Stops early after collecting required data
• Handles large session files (2GB+) without loading entire file

Design Philosophy

The parser does not try to infer topics - it simply collects raw data from all event types. The Claude Code skill then analyzes this data to understand what was being worked on.

Project Structure

claude-session-restore/
├── types/              # Type definitions for Claude session events
│   ├── Cargo.toml
│   └── src/
│       ├── lib.rs
│       └── events/     # Event type hierarchy
├── session-summary/    # CLI tool
│   ├── Cargo.toml
│   └── src/main.rs
├── skill/              # Claude Code skill
│   └── SKILL.md
├── README.md
└── LICENSE

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

Licensed under either of:

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Support the Project

If you find this tool useful, consider supporting development:

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Acknowledgments

Built for use with Claude Code - Anthropic's CLI tool for Claude.