AI-powered progress tracking for epic, multi-session tasks in Claude Code. Never lose context. Auto-summarize with Claude Haiku. Continue seamlessly across sessions.

Languages: English | 中文 | 日本語 | 한국어 | Русский | Español

# Add the marketplace
/plugin marketplace add Equality-Machine/claude-marathon

# Install the plugin
/plugin install marathon@marathon

# Done! 🎉

Marathon solves one problem: Long tasks lose context when sessions end.

When working on complex tasks that span multiple Claude Code sessions, you lose valuable context:

• What did I do last session?
• What was I about to implement?
• What decisions did I make and why?

Marathon automatically tracks and intelligently summarizes every operation using Claude Haiku:

Before Marathon:

Session 1: Edit 20 files for auth feature ✅
[Context compression happens]
Session 2: "What did I implement yesterday?" ❓
          Read through all 20 files manually... 😓

With Marathon:

Session 1: Edit 20 files ✅
          → Auto checkpoint triggers
          → Claude Haiku summarizes: "🎯 Implemented JWT auth system"
[Context compression happens]
Session 2: /marathon-review
          → "Last session: JWT auth 75% complete. Next: Add refresh tokens" ✅
          Resume immediately! 🚀

Marathon provides a complete task lifecycle management:

Session Start
  ↓
📖 /marathon-review        ← Restore context from previous sessions
  ↓
⚙️ /marathon-config        ← (Optional) Configure auto-checkpoint threshold
  ↓
💻 Work on your task...
  ├─ 🤖 Auto Checkpoint    ← Background: AI summarizes every 20 operations
  ├─ 💾 /marathon-checkpoint  ← Manual: Save detailed progress at key moments
  └─ 🏁 /marathon-milestone   ← Manual: Mark major achievements
  ↓
✅ /marathon-end           ← Complete and archive when task is done

Runs in background automatically - no command needed!

• What: AI batch summarizes recent operations using Claude Haiku
• When: Every N tool calls (default: 20, configurable)
• Cost: < $0.10/month
• Example:

  ## 📊 Auto Summary (11:03)
  - [11:02] 📝 Edit: test_manual.txt
  - [11:03] 🔧 Refactor: auth module (login.js, token.js)

Auto vs Manual:

• Auto Checkpoint: Background AI summary, runs automatically every N operations
• Manual Checkpoint (/marathon-checkpoint): Detailed progress save with your analysis
• Milestone (/marathon-milestone): Celebration marker for major achievements

Day 1: You start task
├─ Marathon creates workspace/session_20260222_*/
├─ Auto-tracks every file edit, git command
└─ After 20 operations → AI summary ✅

Day 3: You continue
├─ /marathon-review → Loads all previous sessions
├─ Shows: What's done? What's next?
└─ You continue with full context ✅

Workspace Structure:

workspace/session_YYYYMMDD_HHMMSS/
├── progress.md          # Auto + manual tracking
├── learnings.md         # Technical insights
├── session.json         # Metadata
└── logs/                # Auto-checkpoint logs

# Working on JWT auth feature...

# (After 20 edits, auto checkpoint triggers)
## 📊 Auto Summary
- [14:10] 🎯 Implement JWT login + token generation
- [14:25] 🧪 Add integration tests

# After major milestone
/marathon-checkpoint
✅ Checkpoint: Login endpoint complete

# When MVP done
/marathon-milestone
🏁 Milestone: JWT Authentication MVP Complete!

# Next session
/marathon-review
🔍 Loaded 3 sessions, 75% complete
🎯 Next: Add token refresh mechanism

Adjust auto-checkpoint frequency:

/marathon-config

Recommended thresholds:

• 10-15 → Fast-paced work
• 20-30 → Balanced (default)
• 30-50 → Deep work

✅ Auto-tracking - Set it and forget it ✅ AI-powered - Claude Haiku intelligently summarizes ✅ Cost-effective - <$0.10/month ✅ Zero interruption - Background execution ✅ Multi-project - Directory-aware session filtering ✅ Seamless continuity - Resume exactly where you left off

• Multi-day feature implementations
• Bug investigations spanning sessions
• Research and learning projects
• Team handoffs and context sharing
• Any task longer than one session

• Full Guide: INSTALL.md
• 中文文档: README_ZH.md
• Issues: GitHub Issues

PRs welcome! See CONTRIBUTING.md

MIT License - see LICENSE

• Official Claude Plugins
• Everything Claude Code
• Awesome Claude Code

Run your marathon with confidence! 🏃‍♂️💨