Freshness audit — stale entries

[github-actions]

Freshness audit — 2026-06-01

Threshold: 9 months since last review.

Stale entries

None.

Files missing a Last reviewed: marker

• appendix/agentic-engineering-reference-stack.md
• appendix/creative-ai.md
• appendix/customer-support-and-crm-agents.md
• appendix/learning-resources.md
• appendix/newsletters-and-communities.md
• appendix/voice-agents.md

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Generated by .github/workflows/stale-entry-detector.yml — latest run.