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daily-fix: step9c selector-module diff selects zero tests

kind: infra#wf-fix#wf-fix-fp:58f5c3cd919e#daily-auto-filed
track:

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Overview / Motivation

Auto-filed by the /daily parked-candidate routing pass (Step C) from a recursion-guard-parked prose follow-up on task #1579 (emitting agent: code-reviewer, #1579 round 1).

Goal

Make a diff touching scripts/select_step9c_tests.py itself select its own pin/consumer tests (at minimum tests/test_step9c_baseline.py), instead of mapping to zero tests.

Workflow gap

  • Bug observed: a selector-module diff never selects tests/test_step9c_baseline.py because that consumer references the selector by SYMBOL name only — no import of the module file path, no stem match, no literal path — a miss class adjacent to the docstring's documented residuals.
  • Why it is a workflow gap: the Step-9c test gate's own selector is invisible to itself; a regression in the selector ships without its consumer tests running on the mapped-tests leg.
  • Confidence (emitter): medium (empirically confirmed at filing — see below).
  • verified-at-filing: uv run python scripts/select_step9c_tests.py --map-files scripts/select_step9c_tests.py → ZERO pairs printed (2026-07-22; the claimed miss reproduces, and is broader than the candidate stated: not even a selector self-test is selected); grep -n 'test_step9c_baseline' scripts/select_step9c_tests.py → 0 registration hits. NOT a duplicate of open #865 (on_hold, wf-fix-fp:d2551dac39f5 — worktree-blind diffing, a different bug on the same file; the open-sibling advisory will list it — verified distinct at filing).

Proposed change (candidate diff sketch — refine in planning)

(none — synthesized from prose follow-up) Register tests/test_step9c_baseline.py (and the selector's own test suite, if any) in WORKFLOW_INVARIANT, or add a literal/dependency mapping so selector-module diffs select their pin tests.

Scope / surfaces

  • Primary target: scripts/select_step9c_tests.py
  • Grep tests/ for other symbol-only consumers of the selector before editing; list them in the plan.

Constraints / invariants

  • Workflow-surface only. scripts/workflow_lint.py default run passes; ruff passes; the selector's safe-by-direction over-select contract is preserved.
  • This session runs under EPM_WORKFLOW_FIX_SESSION=1 and carries a workflow_fix_target: Provenance line — recursion guard applies.

Provenance

  • fingerprint: 58f5c3cd919e

  • workflow_fix_target: scripts/select_step9c_tests.py

Verbatim parked candidate (task #1579 events, 2026-07-21T10:18:11Z): "parked — running under workflow_fix_target recursion guard (see .claude/rules/workflow-fix-on-bug.md § Recursion guard); surfaced by code-reviewer r1 (source: prose-followup): a selector-module diff never selects tests/test_step9c_baseline.py because that consumer references the selector by SYMBOL name only (no import of the module file path, no stem match, no literal path) — a miss class adjacent to the docstring's documented residuals. target_file: scripts/select_step9c_tests.py; confidence: medium; related_task: #1579."

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