AGENTS.md is now the canonical instruction file, with CLAUDE.md,
.cursorrules, and .github/copilot-instructions.md as symlinks to it.
This is simpler and more intuitive - the main file is at the root,
not buried in .github/.
Updated all references across agents, commands, skills, and .memory/.
Replace 4 separate instruction files with 1 real file + symlinks:
- .github/copilot-instructions.md is the canonical instruction file
- CLAUDE.md and .cursorrules are symlinks to it
- AGENTS.md stays as global config (not a project instruction file)
This eliminates all sync/merge logic - changes propagate automatically.
Changes:
- AGENTS.md: rewrite Cross-Tool Instruction Files section for symlink convention
- librarian.md: simplify to maintain single instruction file + verify symlinks
- lead.md: simplify PHASE-WRAP and Documentation Completion Gate
- commands (init, bootstrap-memory, save-memory): update for symlink model
- doc-coverage skill: verify symlinks exist and point correctly
