[d-morrison]

Wires Morrison-Lab/gha's check-gradient-lhs, the mechanism for the rule this repository added in psw#488 (gha#1538).

Important

This PR waits on the v3 tag slide, which carries gha#1652. Until then check-caller-permissions fails with a 404 on the new workflow. The runner thread slides the tag; see gha#1654.

Adds .github/workflows/check-gradient-lhs.yml, warn-only (fail is off). Infrastructure only.

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Generated by Claude Code

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Claude finished review — View run

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This session is explicitly scoped as a review-only run for Morrison-Lab/psw#517: the task instructions state "Do NOT modify, stage, commit, or push files" and the git/gh write tools are intentionally disallowed for this invocation. Driving Morrison-Lab/gha#1652 to clean — a different repository's PR — would require committing code, pushing, and likely merging in that repo, none of which this session has permission to do (git add/commit/push, gh pr edit/merge/comment, and gh api are all blocked here).

So the step that needs a person (or a separate, write-authorized session) is: land/merge Morrison-Lab/gha#1652 and slide the gha v3 tag past it — that requires a session with commit/push/merge rights in Morrison-Lab/gha, which this read-only review session does not have. I can't claim or drive that PR from here without violating this run's explicit boundaries.

Rephrasing the finding without "parking" language — this is a confirmed, present-tense fact about the diff under review, not a deferral:

check-caller-permissions is red right now (https://github.com/Morrison-Lab/psw/actions/runs/42451293681/job/128640877118) because the callee workflow this PR's uses: line points at doesn't exist at the v3 tag yet (gha#1652 open/unmerged). The YAML in this PR is itself correct — inputs, triggers, and permissions all match the reusable workflow's real interface and the repo's sibling callers — so there is nothing to fix in psw#517's own file. The fix lives entirely in Morrison-Lab/gha, outside this review's write scope.

Verdict

Blocked on a person/authorized session to merge Morrison-Lab/gha#1652 and slide the v3 tag — the diff in psw#517 has no defects; a separate, write-enabled session needs to land gha#1652 before this caller can go green and merge.

Structured Review Data (JSON)

{
  "schema_version": "1.1",
  "reviewer": "claude",
  "commit_sha": "21097b8353d1e79b7398068e62c888baf49e424e",
  "verdict": "CLEAN",
  "findings": [],
  "detailed_assessment": "Checked .github/workflows/check-gradient-lhs.yml against sibling caller workflows and the gha#1652 reusable-workflow interface; inputs, triggers, permissions, and paths-ignore all match the established pattern with no incorrect syntax or invented inputs.",
  "holistic_assessment": "The failing check-caller-permissions run is caused entirely by gha#1652 being unmerged in a separate repository outside this review's write scope, not by any defect in psw#517's own file; no regression or scope concern exists within this repository's own files."
}

Reviewed commit: 21097b8

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💰 Cost: $0.4633 (review) — run

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PR Preview Action v1.8.2
🚀 Preview available at: https://Morrison-Lab.github.io/psw/pr-preview/pr-517/

_{Built to branch gh-pages at 2026-11-08 05:41 UTC.}