ADR-1244 Phase 5 (D7). dispatchOverlayCapabilityCommand in gsd-tools.cjs dispatches an installed third-party capability command family via loadRegistry({includeInstalled}), gated on a committed ledger entry (consent) and confined to the capability's install root (defaultRequireFromInstallRoot: bare-.cjs basename + realpath containment, rejects ../ traversal + symlink escape); same own-property/function/sync/ExitError guards as the first-party path. capability-loader records _overlay.commandRoots only for accepted overlay caps with a committed, structurally-valid ledger entry (fail closed). First-party graphify/intel/audit unchanged (already on the registry seam). 3 Codex rounds converged + /security-review (no HIGH) + /code-review (Approve); gsd-test green both platforms; CI green.
Closes#1434.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>