The branch tip had 15 mypy tests/ errors in files this bundle did not author,
which blocked CI's make quality mypy step (mypy roboco/ tests/) regardless of
the bundle's own commits. Pre-existing is still existing — fix every one:
- test_schemas_v1_flow.py (8): the StrList coercion tests intentionally pass
SDK-nested list-of-strings input ([[['...']]], {'item':{'$text':'...'}}, int,
dict). Annotate those literals as list[Any] locals so mypy accepts the
coerce-able shape; the StrList BeforeValidator still flattens to list[str] at
runtime. No type:ignore.
- test_pr_gate_records_verdict.py (3): notes_structured is dict|None; narrow
with 'assert t.notes_structured is not None' before indexing (the existing
pattern at line 90).
- test_pr_review_hand_format_guard.py (1 site, 2 errors): the _verb_runner()
spy assertion — use the cc: Any = c alias idiom so assert_not_awaited
resolves; drops the now-unused type:ignore[union-attr].
- test_pr_gate_notifies_pm.py (1): drop the unused type:ignore[method-assign]
on the a2a.send reassignment.
- test_content_models.py (1): narrow coerced with isinstance(coerced,
PrReviewContent) before reading .issues (the base _Content lacks the field).
Gates: rm -rf .mypy_cache && mypy roboco/ tests/ = Success (855 files);
ruff check + format clean; 5 affected suites = 40 passed.
The 2026-06-27 infinite pr_fail loop: a Main-PM root (PR #139) was pr_fail'd,
routed to needs_revision, and re-submitted byte-identical → awaiting_pr_review
→ pr_fail again, forever. The prior hint/a2a steer was ignored by the weak
coordinator model — hints don't stop a model that won't read them. A HARD gate
refuses the re-submit when the assembled root PR's head SHA is unchanged since
the last pr_fail (no new cell work → identical diff); a different SHA ⇒ the
branch advanced ⇒ allow. Every ambiguous case fails open (no prior fail, no
recorded SHA, no pr_number, unresolvable slug, git error, closed PR) — only the
exact-unchanged case is hard-blocked.
- content/models: PrReviewContent.head_sha (optional; JSON col → no migration).
- git: get_pr_head_sha (GitHub pulls API; None on any failure → fail-open).
- pr_gate: pr_fail captures head_sha into the verdict record; pr_pass does not.
- _impl: submit_root runs _submit_root_unchanged_pr_guard after _submit_up_guard;
_current_root_pr_head_sha resolves slug + current SHA (fail-open).
- pr_review: extract module-level resolve_task_project_slug, shared by the mixin
and the gate helper (_LegacyChoreographer reaches it via cast to the
ChoreographerHelpers typed view — it doesn't inherit the helpers mixin).
- tests: test_submit_root_unchanged_pr_guard (11 — refuse/allow/6 fail-open/3
capture-side, mypy-clean via cc:Any spy idiom, zero type:ignore) +
test_pr_gate_notifies_pm capture-path stub.
Renn F