Subagents now read project-level CLAUDE.md if it exists: - Workflows: execute-phase, plan-phase, quick - Agents: gsd-executor, gsd-planner, gsd-phase-researcher, gsd-plan-checker Agents read ./CLAUDE.md in their fresh context, following project-specific guidelines, security requirements, and coding conventions. Fixes: #671 Co-Authored-By: Claude <noreply@anthropic.com>