Data-layer contracts the cockpit (and any jq user) consumes — all strictly
additive (existing human output byte-identical), full guard suite green (54/54):
- registry-emit.sh --json : {variants,defaults,profiles{engines,models,hardware,drafters}}
- tools/kv-calc.py --fit <slug|model> --card <gpu> --json : structured fit verdict
- gpu-mode.sh --list-modes [--json] : scene catalog (serving/studio/ops)
- estate_cli.py report-state/diagnose --json : structured estate read
- pull.sh --profile-like --dry-run --json : structured swap_path (not a message blob)
- health.sh CONTAINER= : Doctor probes any engine container (was qwen36-27b-hardcoded)
- switch.sh --explain <slug> [--json] : joined registry/engine/model/hw/drafter + fit + bench
Built + adversarially reviewed via workflow. The review caught a real
switch<->kv-calc seam defect (switch fed hyphenated 'rtx-3090', kv-calc matched
only 'rtx3090' -> fit silently 'unavailable' on the 3090 rig); fixed: kv-calc
accepts hyphenated hardware-profile ids + hyphen-strip fallback; switch surfaces
kv-calc's structured verdict regardless of RC and renders its real keys; both
tests now exercise the seam. No shared-module edits.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
