- cloud/merge_gate_hard.py (new): pure hard gate; mode resolution is
env-only (unset/invalid -> hard, fail-closed); five checks plus
branch protection must be protected; unknown/unprotected block
even with explicit confirm; no-evidence blocks (fail-closed);
directory check reuses #209 check_directory_isolation (v0.3 rule);
blocks codes + merge_gate_blocked audit detail are the track-3
pushback interface (no pushback state machine in this track).
- cloud/server.py: POST /tasks/{id}/merge uses hard mode by default;
record/enforce/off only when explicitly set via env (preserving
#209 semantics); body merge_gate_mode is ignored server-side so
callers cannot downgrade the gate; every gate block writes a
merge_gate_blocked audit before returning 409, status unchanged;
hard-mode body type errors return 400.
- docs/merge-gate-branch-protection.md (new): protection payload
(PR + strict status checks + no force-push + no deletion +
enforce_admins), empty required_checks = unconfigured, Pro/public
prerequisites, 403 causes; states protection is NOT claimed enabled.
- SKILL.md (gate-mechanism wording only): four checks -> five checks;
body + coordinator + client appendix gate paragraphs updated to
default hard, merge_gate_blocked audit, payload doc reference.
- tests: 31 new hard-gate tests (pure + endpoint + skill text);
#209 endpoint tests now set record env explicitly (their intent);
test_server_merge 200-path calls now carry full hard evidence.
- cloud/merge_gate.py: pure gate; directory check reuses the v0.3
git diff --name-only merge-base command; protection modes
record (default, explicit confirm required when unprotected),
enforce (always blocks when unprotected), off (explicit only).
Confirm covers protection risk only, never directory violations.
Protection status is caller/env-declared only; unknown is a
recorded risk, not a claim of protection.
- server POST /tasks/{id}/merge: applies the gate only when gate
evidence is supplied (or env declares protection); no-evidence
calls behave as before plus a merge_gate field in the response.
Blocked merges return 409 without changing status; confirmed
unprotected merges write a merge_gate_risk audit entry.
- skill_seed.py: whole-directory seeding evaluated and rejected
(cannot preserve tenant deletions; no benefit while the pack
holds only SKILL.md); SKILL.md-only behaviour unchanged.
- software-engineering SKILL.md: gate paragraph added to the body
and to the coordinator + client appendix sections (v0.2 text on
this base; port to v0.3 text on rebase after #199 merges).
- tests: 16 new tests covering gate modes, directory reuse,
body/appendix bidirectional assertions naming the missing side,
SKILL.md-only seeding and tenant-edit preservation.
host