Create AGENTS.md at repo root and core/AGENTS.md as provider-agnostic
sources of always-on rules. Slim both CLAUDE.md files to thin adapters.
Deploy core/AGENTS.md → ~/.agents/AGENTS.md via deploy-manifest.sh.
Update three test suites to check correct locations post-refactor.
All automated tests pass (57 instructions, 106 install, 25 governance).
HITL behavioral test plan in test-instructions-and-docs.sh scenarios 9–12.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>