Handoff

Preserve context across Claude Code sessions by writing a structured HANDOFF.md file at the project root.

When to Use

• Before ending a long session
• Before running /compact to free context
• When switching to a different task and planning to return
• When handing work to another developer or agent

How It Works

1. Check if a HANDOFF.md already exists in the project root
2. If it does, read it first to build on previous context
3. Write/update HANDOFF.md with the five sections below

HANDOFF.md Format

# Handoff — [Project Name]

**Date**: YYYY-MM-DD HH:MM
**Branch**: current git branch

## Goal
What we're trying to accomplish overall.

## Current Progress
- What's been completed this session
- Files created or modified (with paths)
- Decisions made and rationale

## What Worked
- Approaches or patterns that succeeded
- Key insights discovered

## What Didn't Work
- Approaches tried and abandoned (with reasons)
- Pitfalls to avoid next time

## Next Steps
1. Specific actionable items for the next session
2. Ordered by priority
3. Include file paths and context needed

Rules

• Always include the current git branch and date
• Be specific about file paths — the next session has zero context
• List what didn’t work so the next session doesn’t repeat failed approaches
• Keep it under 100 lines — enough to resume, not a novel
• If a HANDOFF.md exists, update it rather than overwriting blindly

Example

# Handoff — checkout-service

**Date**: 2026-02-12 14:30
**Branch**: feat/stripe-checkout

## Goal
Implement Stripe checkout flow with webhook verification.

## Current Progress
- Created `src/api/checkout.ts` with createSession endpoint
- Added `src/api/webhooks/stripe.ts` for webhook handler
- Database migration `migrations/005_orders.sql` applied
- Unit tests passing for checkout session creation

## What Worked
- Using Stripe's PaymentIntent API instead of Charges (simpler flow)
- Zod schema validation on webhook payload before processing

## What Didn't Work
- Tried using Stripe Checkout Sessions redirect — didn't work with SPA routing
- webhook signature verification failed when using raw body parser from express (need raw buffer)

## Next Steps
1. Fix webhook body parsing — use `express.raw()` middleware for `/api/webhooks/stripe`
2. Add idempotency key to prevent duplicate order creation
3. Write integration tests for the full checkout -> webhook -> order flow
4. Add error handling for failed payments (update order status)