Navigator Knowledge Graph Skill

Query and manage the unified project knowledge graph. Surfaces relevant knowledge from tasks, SOPs, system docs, and experiential memories.

Why This Exists

Navigator v6.0.0 introduces the Project Knowledge Graph:

• Unified search: Query across all knowledge types with one interface
• Experiential memory: Patterns, pitfalls, decisions, learnings persist
• Context-aware retrieval: Load only relevant knowledge (~1-2k tokens)
• Relationship traversal: Find related concepts and documents

When to Invoke

Query triggers:

• "What do we know about X?"
• "Show everything related to X"
• "Any pitfalls for X?"
• "What decisions about X?"
• "Find all knowledge about X"

Memory capture triggers:

• "Remember this pattern: ..."
• "Remember this pitfall: ..."
• "Remember we decided: ..."
• "Remember this learning: ..."

Graph management triggers:

• "Initialize knowledge graph"
• "Rebuild knowledge graph"
• "Show graph stats"

Graph Location

.agent/knowledge/graph.json (~1-2k tokens, loaded on query)

Execution Steps

Step 1: Determine Action

QUERY (searching knowledge):

User: "What do we know about authentication?"
→ Query graph by concept

CAPTURE (storing memory):

User: "Remember: auth changes often break session tests"
→ Create new memory node

INIT (building graph):

User: "Initialize knowledge graph"
→ Build graph from existing docs

STATS (viewing graph):

User: "Show graph stats"
→ Display graph statistics

Step 2: Load or Initialize Graph

Check if graph exists:

if [ -f ".agent/knowledge/graph.json" ]; then
  echo "Graph exists"
else
  echo "No graph found, will initialize"
fi

Initialize if not exists:

python skills/nav-graph/functions/graph_builder.py \
  --agent-dir .agent \
  --output .agent/knowledge/graph.json

Step 3A: Query Knowledge (If QUERY Action)

Extract concept from user input:

User: "What do we know about testing?"
→ Concept: testing

User: "Any pitfalls for auth?"
→ Concept: auth (normalized to authentication)

Run query:

python skills/nav-graph/functions/graph_manager.py \
  --action query \
  --concept "testing" \
  --graph-path .agent/knowledge/graph.json

Display results:

Knowledge Graph: "testing"

TASKS (3)
  - TASK-30: Task Verification Enhancement (completed)
  - TASK-17: Visual Regression Integration (completed)
  - TASK-11: Project Skills Generation (completed)

MEMORIES (2)
  - PITFALL: "Auth changes break session tests" (90%)
  - PATTERN: "Always run unit tests before integration" (85%)

SOPs (1)
  - visual-regression-setup

FILES (5)
  - skills/backend-test/*
  - skills/frontend-test/*

Load details: "Read TASK-30" or "Show testing memories"

Step 3B: Capture Memory (If CAPTURE Action)

Parse memory from user input:

User: "Remember this pitfall: auth changes often break session tests"
→ Type: pitfall
→ Summary: "auth changes often break session tests"
→ Concepts: [auth, testing]

User: "Remember we decided to use JWT over sessions for scaling"
→ Type: decision
→ Summary: "use JWT over sessions for scaling"
→ Concepts: [auth, architecture]

Determine memory type:

Create memory:

python skills/nav-graph/functions/graph_manager.py \
  --action add-memory \
  --memory-type pitfall \
  --summary "auth changes often break session tests" \
  --concepts "auth,testing" \
  --confidence 0.9 \
  --graph-path .agent/knowledge/graph.json

Optionally create detailed memory file:

# Pitfall: Auth Changes Break Session Tests

## Summary
Auth changes often break session tests due to...

## Context
Discovered during TASK-XX when...

## Recommended Approach
When modifying auth, always run...

## Related
- TASK-12: V3 Skills-Only
- SOP: autonomous-completion

Confirm capture:

Memory captured: mem-001

Type: Pitfall
Summary: "auth changes often break session tests"
Concepts: auth, testing
Confidence: 90%

This will be surfaced when working on auth or testing topics.

Step 3C: Initialize Graph (If INIT Action)

Build from existing docs:

python skills/nav-graph/functions/graph_builder.py \
  --agent-dir .agent \
  --output .agent/knowledge/graph.json

Display results:

Knowledge Graph Initialized

Scanned:
  - Tasks: 35
  - SOPs: 12
  - System docs: 3
  - Markers: 8

Extracted:
  - Concepts: 15
  - Relationships: 47

Graph saved to .agent/knowledge/graph.json

Query with: "What do we know about [topic]?"

Step 3D: Show Stats (If STATS Action)

Display graph statistics:

python skills/nav-graph/functions/graph_manager.py \
  --action stats \
  --gra

...