Mem Save

3. Save to Memory Knowledge Graph

Use mcp__memory__create_entities or mcp__memory__add_observations to save:

# Add observations to existing project entity
mcp__memory__add_observations \
  --entityName "ProjectName" \
  --contents "Progress: implemented X, decided to use Y, next step is Z"

# Or create new entity for new technical component
mcp__memory__create_entities \
  --entities '[{
    "name": "ComponentName",
    "entityType": "Component",
    "observations": ["Description of the component and decisions"]
  }]'

Save only if there are:

• New architecture decisions
• New patterns or conventions discovered
• Key technology selections

4. Append to MEMORY_INDEX.md

Update docs/dev/MEMORY_INDEX.md in the consuming project:

4.1 If file does not exist, create initial structure:

# Memory Index

Project: [ProjectName]
Created: [YYYY-MM-DD]

---

## [Active Work]

4.2 Insert new entry at the TOP of [Active Work] section:

Format: - HH:MM | Description (same day) or - YYYY-MM-DD HH:MM | Description (cross-day)

Example:

## [Active Work]

- 15:30 | Completed mem-save skill implementation with MEMORY_INDEX.md support
- 14:00 | Started dev-phase-manager v1.1.0 implementation

Rules:

• New entries always go at the top of [Active Work] (newest first)
• Keep entries concise (one line each)
• Include the most important achievement or status change
• Do NOT modify archived phase sections

5. Output Summary

Display a concise summary:

✅ Memory saved

Saved to:
- claude-mem: "[ProjectName] Memory Save - [Achievement]"
- knowledge graph: Updated [EntityName] observations
- MEMORY_INDEX.md: Added entry to [Active Work]

Summary:
- ✅ Completed: [what was done]
- 🔄 In progress: [current work]
- 📋 Next steps: [what to do next]

💡 Tip: Use /mem-search to browse saved memories

Use Cases

Scenario 1: Periodic save during long session

# Working on implementation...
# After completing a significant chunk:
/mem-save
# → Summarizes progress
# → Saves to all backends
# → Updates MEMORY_INDEX.md

Scenario 2: Before context clear

# Context approaching limit
/mem-save
/checkpoint-progress
/clear
# → Memory preserved across clear

Scenario 3: After key decision

# Made important architecture decision
/mem-save
# → Decision recorded in knowledge graph
# → Indexed in MEMORY_INDEX.md

Notes

1. No file creation beyond MEMORY_INDEX.md: Only creates/updates docs/dev/MEMORY_INDEX.md
2. No git commits: Memory save does not commit to git
3. Idempotent: Safe to call multiple times, each call adds a new entry
4. Project detection: Auto-detect project name from git remote, directory name, or phase stack
5. Timestamp: Use current local time for entries