added 260907 version of worker toolkit

worker-toolkit-flaredown/.claude/skills/detector-rubric-form/SKILL.md

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+---
+name: detector-rubric-form
+description: |
+  Self-check that your atomic rubric is well-formed. A deterministic contract
+  checks the artifact: the file parses against the criterion schema,
+  criteria number 2 to 24, ids are kebab-case and unique, category and
+  severity use the defined vocabularies, extra_credit criteria carry no
+  severity, at most 2 criteria are crux, `dimensions` names grading-standard
+  criteria, and no text states a numeric penalty amount. A judgment layer
+  checks the writing: each guideline is one positively phrased,
+  independently judgeable requirement, criteria stand alone, factual
+  criteria carry their answer key inline in bold, and elaborations clarify
+  the guideline instead of adding requirements. Reads
+  `tests/atomic-rubric.yaml` (or `tests/rubrics.yaml`) and
+  `tests/grader-context.md`. Emits `not-applicable` when the task has no
+  atomic rubric yet.
+allowed-tools: Bash, Read, Write
+---
+
+# Rubric-form detector
+
+This skill checks your atomic rubric as an artifact. Each criterion is scored
+on its own, and the aggregate score is computed from `category` and
+`severity`. That only works when the file obeys the schema and each criterion
+states one requirement a grader can judge independently.
+
+The failure shapes to catch:
+
+- **Schema violations.** The file fails to parse, ids repeat or are not
+  kebab-case, a category or severity value is outside the vocabulary, an
+  extra_credit criterion carries a severity, more than 2 criteria are crux,
+  or `dimensions` is empty.
+- **Numeric penalty language.** A guideline, elaboration, or
+  `tests/grader-context.md` sentence states a penalty amount, such as
+  "subtract roughly 0.35". Penalty weight is expressed through category and
+  severity. Sizing the subtraction is the grading machinery's job.
+- **Negation-phrased guidelines.** A guideline says "should not" or "must
+  not" instead of stating the requirement positively. Use "The response
+  should avoid X" for prohibitions.
+- **Bundled or fragmentary criteria.** One criterion packs several
+  independent requirements, so a grader must improvise a partial verdict.
+  Or a criterion cannot be judged without reading a sibling criterion.
+  Parallel facts from one derivation may share a criterion.
+- **Missing answer keys.** A criterion grades the response for surfacing a
+  specific fact, and the fact is not stated inline in bold in the guideline.
+- **Requirements hidden in elaborations.** An elaboration adds a requirement
+  the guideline never states.
+- **Unfair grading shapes.** Criteria spent on trivially-satisfied
+  properties, two criteria that both fire on one defect with no note saying
+  which one charges, phrasing that forecloses an approach the rubric's own
+  text treats as acceptable, or a requirement the task's environment cannot
+  satisfy.
+
+Read these before deciding:
+
+1. `.claude/skills/_detector-worker-shell.md` — where to write the report and how to handle re-runs.
+2. `.claude/skills/detector-rubric-form/core.md` — the deterministic contract with its pattern sweeps, the judgment checks, what is deliberately not a finding, verdict definitions, and the body schema.
+
+Compose the report per the schema in `core.md` and write it per `_detector-worker-shell.md`.
+
+## Acting on the verdict
+
+- **`clear`** — the file passes the deterministic contract and the criteria
+  read as a working rubric. Good.
+- **`minor-issues`** — the contract passes, and the findings are
+  polish-level. Read the findings list and tighten the criteria. There is no
+  need to rebuild the rubric.
+- **`material-issues`** — the file breaks the deterministic contract, or at
+  least one criterion cannot be graded as written. Fix every finding in the
+  deterministic-contract section first, then the judgment findings. Re-run
+  this skill after editing.
+- **`not-applicable`** — the task has no atomic rubric yet. Write the atomic
+  rubric first, then come back to this skill.