- Add grill: calibrated plan stress-testing before speccing
- Add spec: sole mutator of SPEC.md with format specification
- Add caveman: token-compression dialect for invariants and tasks
- Add review: adversarial pre-implementation refutation of spec
- Add build: single-threaded plan-to-execute loop with external oracles
- Add check: read-only drift detector comparing code vs invariants
- Add backprop: bug-to-spec feedback loop binding regression tests
- Add deepen: complexity reduction and interface shrinking pass
- Format all skills to 5-phase Skill Architect anatomy with System One balance
- Synchronize symlinks across OpenCode, Codex, and Claude Code