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name: c3 description: | Routes C3 architecture requests and audits existing C3 documentation for consistency. Use when the user asks to "audit architecture", "validate C3", "check C3 docs", or when no .c3/ directory exists (routes to onboarding). Routes navigation to c3-navigator agent, changes to c3-orchestrator agent.

C3 Architecture Assistant

REQUIRED: Load References

Before proceeding, use Glob to find and Read these files:

1. **/references/skill-harness.md - Red flags and complexity rules
2. **/references/layer-navigation.md - How to traverse C3 docs

Mode Selection

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Mode: Adopt

Route to /onboard skill for the full staged learning loop.

See skills/onboard/SKILL.md for the complete workflow.

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Mode: Audit

REQUIRED: Load **/references/audit-checks.md for full procedure.

Checks: Inventory vs code, categorization, reference validity, diagrams, ADR lifecycle, abstraction boundaries, content separation

Content Separation Check (Phase 9):

• Verifies components contain domain logic, refs contain usage patterns
• Uses c3-skill:c3-content-classifier agent for LLM-based analysis
• Detects: missing refs for technologies, integration patterns in components, duplicated patterns

Example:

CopyUser: "Check if C3 docs are up to date"

1. Load audit-checks.md
2. Run Phase 1: Gather (list containers, components, ADRs)
3. Run Phase 2-9: Validate each check (including content separation)
4. Output audit report with PASS/FAIL/WARN per check
5. List actionable fixes for any failures