- Add "Agents vs Sessions" explainer section to ARCHITECTURE.md
- Replace all "PM Agent" references with "Orchestrator" in sequence diagrams
- Fix ticket creation: agents create issues via glab, not humans
- Update scope boundaries to show sub-agent session responsibilities
- Clarify plugin returns instructions, agent executes session operations
- Update ONBOARDING.md issue creation to show agent-first workflow
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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