added potion-polyglot worker folder w/o repos

worker-toolkit-potion-polyglot/.claude/skills/_detector-worker-shell.md

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+# Worker detector shell
+
+This file is the shared boilerplate for all detector self-check skills
+under `.claude/skills/` in the worker toolkit. Each detector's `SKILL.md`
+points at this file plus its own `core.md` so the output path convention,
+the directory-creation step, and the overwrite semantics don't duplicate
+across detectors.
+
+## Resolve the rubric target first
+
+Wherever your detector's `core.md` reads or assesses the holistic rubric
+(older cores call it "the grader guidance"), it means the file the grader
+will actually use. Resolve it before reading anything:
+
+```
+bash scripts/guidance-target.sh <slug>
+```
+
+It prints the path to the task's holistic rubric: `tests/holistic-rubric.md`
+on a task created with this toolkit. A task from an earlier toolkit carries
+the same document as `tests/grader-guidance-consolidated.md`, or as
+`tests/grader-guidance.md` on the oldest tasks, and the resolver prints
+whichever file the task has.
+Assess that file, and assess it against the structure the grading standard
+expects: Task context, optional Business context, Ground truth, one section
+per criterion in the standard's order, and optional Heavy penalties.
+
+Never assess a file the resolver did not name.
+
+Open the report body with one line naming what you assessed:
+
+```
+Assessed: <resolved-path>
+```
+
+## Output path
+
+Compose the detector report (YAML frontmatter + markdown body) per the
+schema in your detector's `core.md`. The frontmatter must include
+`detector`, `verdict`, and `confidence`; detectors with structured
+payloads (`detector-fact-check-rubric-claims` → `claims`, `detector-run-behaviors` →
+`runBehaviors`) embed them in the same frontmatter block as the other
+fields.
+
+Write the report to:
+
+```
+harbor-tasks/<slug>/detectors/<detector-name>.md
+```
+
+`<detector-name>` is the value of the `detector:` frontmatter field —
+e.g. `detector-snapshot-leakage`, `detector-cross-task-reference`, `detector-meaningful-failure`,
+`detector-rubric-clarity`, `detector-rubric-generality`, `detector-rubric-coverage`, `detector-rubric-form`,
+`detector-answer-obviousness`, `detector-good-response-defined`,
+`detector-good-response-exhaustiveness`, `detector-dimension-misapplication`, `detector-broken-dev-env`,
+`detector-over-hinting`, `detector-offline-verifiability`, `detector-credential-leakage`,
+`detector-fact-check-rubric-claims`, `detector-run-behaviors`.
+
+## Directory + overwrite semantics
+
+- Create the `detectors/` directory if it doesn't exist (`mkdir -p`).
+- Overwrite the file if it already exists from a prior run. Detector
+  skills are meant to be re-runnable — every time you tweak the rubric,
+  the snapshot, or anything else this detector reads, re-run the skill
+  and read the fresh report.
+
+## Record what the report assessed
+
+After writing (or rewriting) the report, stamp it with the checksums of
+the task inputs it assessed:
+
+```
+npx tsx scripts/record-detector-inputs.ts <slug> <detector-name>
+```
+
+This writes `harbor-tasks/<slug>/detectors/<detector-name>.inputs.json`.
+`submit-task.ts` compares those checksums against the task at packaging
+time and warns when the report predates a prompt or rubric edit —
+by content, so it stays accurate even when file timestamps get disturbed.
+An unstamped report falls back to the less reliable timestamp comparison.
+Re-run the command after every re-run of the detector.
+
+## Verdict and body schema live in core.md
+
+Each detector's `core.md` is the source of truth for its verdict enum and
+the body section structure. Don't restate them in `SKILL.md` — read
+`core.md` and use the values it specifies.