Extract Skill

Extract Skill

Typically runs automatically via SessionStart hook.

Process pending learning extractions from previous sessions.

How It Works

The SessionStart hook runs:

ao extract

This checks for queued extractions and outputs prompts for Claude to process.

Manual Execution

Given /​extract:

Step 1: Check for Pending Extractions

ao extract 2>/​dev/​null

Or check the pending queue:

cat .agents/​ao/​pending.jsonl 2>/​dev/​null | head -5

Step 2: Process Each Pending Item

For each queued session:

1. Read the session summary
2. Extract actionable learnings
3. Write to .agents/​learnings/

Step 3: Write Learnings

Write to: .agents/​learnings/​YYYY-MM-DD-<session-id>.md

# Learning: <Short Title>

**ID**: L1
**Category**: <debugging|architecture|process|testing|security>
**Confidence**: <high|medium|low>

## What We Learned

<1-2 sentences describing the insight>

## Why It Matters

<1 sentence on impact/​value>

## Source

Session: <session-id>

Step 4: Clear the Queue

ao extract --clear 2>/​dev/​null

Step 5: Report Completion

Tell the user:

• Number of learnings extracted
• Key insights
• Location of learning files

The Knowledge Loop

Session N ends:
  → ao forge --last-session --queue
  → Session queued in pending.jsonl

Session N+1 starts:
  → ao extract (this skill)
  → Claude processes the queue
  → Writes to .agents/​learnings/
  → Loop closed

Key Rules

• Runs automatically - usually via hook
• Process the queue - don't leave extractions pending
• Be specific - actionable learnings, not vague observations
• Close the loop - extraction completes the knowledge cycle