Note

Note Skill

Purpose

Persistent memo system surviving session compaction. Prevents critical context loss through compression in long sessions.

Core Principle: Critical info → Save memo → Persist after compaction → Available in next session

Storage Location

• Project Level: .claude/notepad.md (project root)
• Global Level: ~/.claude/notepad.md (shared across projects)

Commands

Sections

1. Priority Context (Always Loaded)

## Priority Context
<!-- 500 char limit - always injected at session start -->
- Project uses pnpm, not npm
- API client: src/api/client.ts
- Auth: NextAuth + Prisma adapter

Purpose:

• Project core information
• Must-know at every session start
• 500 char limit (context budget consideration)

2. Working Memory (Temporary Memos)

## Working Memory
<!-- Includes timestamp, auto-cleaned after 7 days -->
[2025-01-28 14:30] Auth bug found - UserContext missing useEffect dependency
[2025-01-28 15:45] RLS policy issue resolved - test with service_role key

Purpose:

• Debugging discoveries
• Current work content
• Auto-cleaned after 7 days (--prune)

3. MANUAL (Permanent Storage)

## MANUAL
<!-- Never auto-deleted -->
- Backend Team: backend@company.com
- Production DB: readonly, never directly modify
- Deploy: main branch push → Vercel auto-deploy

Purpose:

• Team contacts
• Deployment info
• Project rules
• Never-forget information

Notepad File Format

# Notepad
<!-- Session memos surviving compaction -->
<!-- Storage: .claude/notepad.md -->

## Priority Context
<!-- 500 char limit - always loaded -->
- Project uses TypeScript strict mode
- All files in src/, tests in tests/
- API endpoints: /api/v1/*

## Working Memory
<!-- Includes timestamp, auto-cleaned after 7 days -->
[2025-01-28 14:30] Found race condition in worker.ts:89

## MANUAL
<!-- Permanent storage - never auto-deleted -->
- Contact: api-team@company.com for backend questions
- NEVER commit to main directly

Workflow

Adding a Note

User: /note Auth module needs JWT expiry handling

Claude:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📝 [Note] Added to Working Memory
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[2025-01-28 14:30] Auth module needs JWT expiry handling

Saved to: .claude/notepad.md
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Adding Priority Context

User: /note --priority This project uses pnpm, npm commands forbidden

Claude:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📌 [Note] Added to Priority Context
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
- This project uses pnpm, npm commands forbidden

⚠️ Priority Context: 127/500 chars used
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Showing Notes

User: /note --show

Claude:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📋 [Note] Current Notepad Contents
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

## Priority Context (127/500 chars)
- This project uses pnpm, npm commands forbidden
- API: src/api/client.ts

## Working Memory (2 items)
[2025-01-28 14:30] Auth module needs JWT expiry handling
[2025-01-28 15:00] Fixed type error in UserService.ts:45

## MANUAL (1 item)
- Backend Team: backend@company.com

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Implementation

On Skill Invocation

1. Parse Arguments

   • Check options: --priority, --manual, --show, --prune, --clear
   • Extract content

2. Load/Create Notepad

   • Read or create .claude/notepad.md
   • Parse by section

3. Execute Action

   • Default: Add to Working Memory with timestamp
   • --priority: Add to Priority Context (check 500 char limit)
   • --manual: Add to MANUAL section
   • --show: Display full contents
   • --prune: Delete Working Memory older than 7 days
   • --clear: Delete entire Working Memory

4. Save Notepad

   • Save changes

Session Integration

Session Start

Auto-check notepad at session start:

1. Check .claude/notepad.md or ~/.claude/notepad.md existence
2. Load Priority Context (always)
3. Load recent Working Memory (within 24 hours)

Session End

Suggest noting important info before session end:

• Complex problems solved
• Project rules discovered
• Context needed for next session

Best Practices

Priority Context Writing Tips

✅ Good (concise and essential)
- Use pnpm, not npm
- API: src/api/client.ts
- Auth: NextAuth + Prisma

❌ Bad (too detailed)
- This project uses the pnpm package manager.
  Using npm or yarn can cause lock file conflicts,
  so please always use pnpm...

Working Memory Writing Tips

✅ Good (specific, includes file/line)
[2025-01-28] worker.ts:89 missing await on Promise.all - race condition cause

❌ Bad (vague)
[2025-01-28] Bug found

MANUAL Writing Tips

✅ Good (permanently useful info)
- Production DB: readonly access only
- Deploy: main push → Vercel auto-deploy
- Hotfix: hotfix/* branch → immediate deploy

❌ Bad (temporary info)
- Meeting today at 3pm

Related

• /learn - Pattern extraction and skill saving
• /checkpoint - Create restore point before work
• /checkpoint - Git-based work-state snapshot