task-sync

Task Synchronization: Trekker is Primary

CRITICAL: Trekker is the PRIMARY task tracker. TodoWrite is secondary.

Trekker persists across sessions in SQLite. TodoWrite only lives within a conversation. When they conflict, Trekker wins.

The Rule

Trekker = Source of Truth (survives context resets)
TodoWrite = Session Mirror (conversation-scoped only)

Automatic Sync Behavior

When Starting a Session

1. Read Trekker state first: trekker --toon task list --status todo,in_progress
2. Populate TodoWrite from Trekker tasks
3. Never trust TodoWrite from previous sessions - always refresh from Trekker

When Creating Tasks

1. Create in Trekker FIRST:
   trekker task create -t "Title" -d "Description"

2. THEN mirror to TodoWrite:
   TaskCreate with same subject

When Updating Tasks

1. Update Trekker FIRST:
   trekker task update TREK-n -s in_progress

2. THEN update TodoWrite:
   TaskUpdate for corresponding todo

When Completing Tasks

1. Add summary comment to Trekker:
   trekker comment add TREK-n -a "claude" -c "Summary: ..."

2. Mark complete in Trekker:
   trekker task update TREK-n -s completed

3. Mark complete in TodoWrite:
   TaskUpdate status: completed

Priority Order

Scenario	Action
Trekker has task, TodoWrite doesn't	Add to TodoWrite
TodoWrite has task, Trekker doesn't	Create in Trekker first
Both have task, states differ	Trekker wins, update TodoWrite
User creates via TodoWrite	Immediately create in Trekker

Why Trekker is Primary

1. Persistence: Survives context resets, TodoWrite doesn't
2. Searchable: trekker search finds past work
3. Auditable: trekker history shows change trail
4. Dependencies: Trekker tracks task relationships
5. Multi-session: Work continues across conversations

Implementation Pattern

Before ANY task operation, think:

1. Is this in Trekker? → trekker task show <id>
2. Make change in Trekker FIRST
3. Mirror to TodoWrite AFTER
4. If conflict → Trekker wins

Anti-Patterns (DO NOT DO)

• Creating in TodoWrite without Trekker
• Trusting TodoWrite state from "previous session" (it's gone)
• Updating TodoWrite but forgetting Trekker
• Having tasks in TodoWrite that don't exist in Trekker