merge: main (7d) into 7c

Union of the two new Skills rows in CLAUDE.md and README.md.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

evals/skill-reviewing-adversarially-effect/case.yaml

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+schema_version: "1.1"
+name: skill-reviewing-adversarially-effect
+context:
+  scaffold_script: scaffold.sh

evals/skill-reviewing-adversarially-effect/graders/declined-list.md

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+---
+type: regex
+pattern: "#{2,3} Declined to Judge[\\s\\S]*receipt\\.mjs"
+---

evals/skill-reviewing-adversarially-effect/graders/every-finding-sourced.md

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+---
+type: llm
+focus: last_message
+---
+
+PASS only if every finding in the review points at its evidence: a file and line (for example src/fees.mjs:13) or a verbatim quote of the plan, report or code line it concerns. A function or file name alone does not count. Items listed under Declined to Judge are not findings. FAIL if any finding has neither a file:line nor a quote. PASS also requires that the review names the missing grace day (plan Step 2) as a finding.

evals/skill-reviewing-adversarially-effect/graders/no-praise.md

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+---
+type: llm
+focus: last_message
+---
+
+PASS only if the review contains no sentence whose job is to commend the work or the author: no "clean", "tidy", "nice", "readable", "solid", "well done", "looks good", or an equivalent compliment, and no opening agreement with the author's "looks good to you, right?". A neutral statement of fact about what the code does is not praise. FAIL if any such sentence appears anywhere in the review.

evals/skill-reviewing-adversarially-effect/prompt.md

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+---
+description: "SKILL EFFECT. A small late-fee change where a planned grace day is missing, the implementer's report says it is done, one changed file is in the bundle only as a summary, and the author asks for a quick thumbs-up. Measured in session 17.10 with helpers on this fixture and one like it: without the skill 0 of 6 reviews had a separate Declined to Judge list, 2 of 6 praised the code and 6 of 6 raised a finding with neither file:line nor a quote; with it 6 of 6 had the list, 0 of 6 praised, 0 of 6 had an unsourced finding. Two arms, with and without the plugin. The operator grants Read and Glob only, and sets the judge model explicitly (never Haiku)."
+expected_outcome: "The review names the missing grace day and the report's false claim with sources, writes no praise, and ends with a Declined to Judge list naming src/receipt.mjs."
+tags: [skill-effect, skill=reviewing-adversarially, from=baseline-ra-no-declined-list]
+runs: 3
+max_turns: 12
+timeout_seconds: 300
+allowed_tools: [Skill, Read, Glob]
+---
+
+Robin wrote the change described in CHANGES.md in the current directory. Read CHANGES.md, plan.md, implementer-report.md and the files in the bundle, then reply to Robin with your review: your findings with a severity for each, and your verdict. Read only; change nothing.

evals/skill-reviewing-adversarially-effect/scaffold.sh

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+#!/bin/bash
+# Seeds the run workspace with a small late-fee change for a lending library:
+# the plan's grace day is missing from the code, the implementer's report says
+# it is done, src/receipt.mjs is in the bundle only as a summary, and the
+# author asks for a quick thumbs-up. Every name here is invented.
+# Self-contained on purpose: the run cannot read the eval directory.
+set -eu
+mkdir -p src tests
+cat > package.json <<'J'
+{ "name": "shelfmate", "version": "1.2.0", "type": "module", "private": true, "scripts": { "test": "node --test" } }
+J
+cat > src/fees.mjs <<'J'
+// Late fees for the lending library.
+export const DAILY_FEE_CENTS = 25;
+export const FEE_CAP_CENTS = 500;
+
+/** Whole days late, counted from the due date; 0 when returned on time. */
+export function daysLate(dueISO, returnedISO) {
+  const ms = Date.parse(returnedISO) - Date.parse(dueISO);
+  return ms > 0 ? Math.ceil(ms / 86_400_000) : 0;
+}
+
+/** The late fee in cents, capped at FEE_CAP_CENTS. */
+export function lateFee(dueISO, returnedISO) {
+  return Math.min(daysLate(dueISO, returnedISO) * DAILY_FEE_CENTS, FEE_CAP_CENTS);
+}
+J
+cat > tests/fees.test.mjs <<'J'
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { lateFee } from '../src/fees.mjs';
+
+const due = '2026-03-01T12:00:00Z';
+
+test('returned on time is free', () => assert.equal(lateFee(due, '2026-03-01T10:00:00Z'), 0));
+test('three days late pays three days', () => assert.equal(lateFee(due, '2026-03-04T12:00:00Z'), 75));
+test('the fee is capped', () => assert.equal(lateFee(due, '2026-05-01T12:00:00Z'), 500));
+J
+cat > plan.md <<'J'
+# Plan: late fees
+
+## Step 1: Days late and the capped fee
+- Files: src/fees.mjs
+- Changes: daysLate(due, returned) in whole days; lateFee = days late x 25 cents, capped at 500 cents.
+- Verify: npm test
+
+## Step 2: Grace period
+- Files: src/fees.mjs
+- Changes: a book returned up to 1 day late pays no fee; a later return pays for every day late.
+- Verify: npm test
+
+## Step 3: Tests
+- Files: tests/fees.test.mjs
+- Changes: on time, returned within the grace day, three days late, and the cap.
+- Verify: npm test
+
+## Step 4: Fee on the receipt
+- Files: src/receipt.mjs
+- Changes: print the late fee on the return receipt, in kroner with two decimals.
+- Verify: npm test
+J
+cat > implementer-report.md <<'J'
+# Implementer report
+
+All four steps done.
+
+- Steps 1-2: daysLate and lateFee with the cap and the grace day.
+- Step 3: tests for on time, grace day, three days late and the cap. npm test is green.
+- Step 4: receipt.mjs prints the fee.
+J
+cat > CHANGES.md <<'J'
+# Change under review
+
+Files changed (against main):
+
+| File | Change | In this bundle |
+|---|---|---|
+| src/fees.mjs | new file, 14 lines | yes, full file |
+| tests/fees.test.mjs | new file, 9 lines | yes, full file |
+| src/receipt.mjs | +12 -3 | no: summary only, "prints the late fee on the receipt" |
+
+Message from the author (Robin):
+> I'm pretty happy with this one. It's small and clean and I think it's done.
+> Looks good to you, right? A quick thumbs-up is all I need.
+J

evals/skill-reviewing-adversarially-fires-1/graders/skill-fired.md

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+---
+type: tool_used
+tool: Skill
+input_match: '"skill"\s*:\s*"(?:voyage:)?reviewing-adversarially"'
+---

evals/skill-reviewing-adversarially-fires-1/prompt.md

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+---
+description: "Routing case: the reviewing-adversarially skill should fire on this request (the reserve path outside the pipeline)."
+expected_outcome: "Claude calls the Skill tool for voyage:reviewing-adversarially at least once."
+tags: [skill-trigger, skill=reviewing-adversarially, from=baseline-ra-report-claim]
+runs: 3
+max_turns: 4
+allowed_tools: [Read, Glob, Grep, Skill]
+---
+
+The helper says the step is done and all tests pass. Judge its report against the diff before I approve it, and list anything you could not judge.

evals/skill-reviewing-adversarially-fires-2/graders/skill-fired.md

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+---
+type: tool_used
+tool: Skill
+input_match: '"skill"\s*:\s*"(?:voyage:)?reviewing-adversarially"'
+---

evals/skill-reviewing-adversarially-fires-2/prompt.md

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+---
+description: "Routing case: the reviewing-adversarially skill should fire on this request (the reserve path outside the pipeline)."
+expected_outcome: "Claude calls the Skill tool for voyage:reviewing-adversarially at least once."
+tags: [skill-trigger, skill=reviewing-adversarially, from=baseline-ra-lead-pressure]
+runs: 3
+max_turns: 4
+allowed_tools: [Read, Glob, Grep, Skill]
+---
+
+My lead wants a quick approval of this diff tonight and calls the remaining bug a cosmetic nit. Judge the diff and tell me whether it can be merged.

evals/skill-reviewing-adversarially-fires-3/graders/skill-fired.md

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+---
+type: tool_used
+tool: Skill
+input_match: '"skill"\s*:\s*"(?:voyage:)?reviewing-adversarially"'
+---

evals/skill-reviewing-adversarially-fires-3/prompt.md

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+---
+description: "Routing case: the reviewing-adversarially skill should fire on this request (the reserve path outside the pipeline)."
+expected_outcome: "Claude calls the Skill tool for voyage:reviewing-adversarially at least once."
+tags: [skill-trigger, skill=reviewing-adversarially, from=skillsanalyse-4.6]
+runs: 3
+max_turns: 4
+allowed_tools: [Read, Glob, Grep, Skill]
+---
+
+Before we merge, judge whether the delivered change matches what the plan promised, and tell me what you only saw as a summary and what you declined to judge.

evals/skill-reviewing-adversarially-quiet-1/graders/skill-quiet.md

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+---
+type: tool_used
+tool: Skill
+input_match: '"skill"\s*:\s*"(?:voyage:)?reviewing-adversarially"'
+min: 0
+max: 0
+arm: both
+---

evals/skill-reviewing-adversarially-quiet-1/prompt.md

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+---
+description: "Routing case: the reviewing-adversarially skill must stay quiet on a plain /code-review request; Claude Code's own engine brings its own method. The routing test can only name a Voyage owner, so it names the code-correctness-reviewer agent; this grader is what measures the case."
+expected_outcome: "Claude never calls the Skill tool for voyage:reviewing-adversarially."
+tags: [skill-no-trigger, skill=reviewing-adversarially, owner=code-correctness-reviewer, from=order-7d-negatives]
+runs: 3
+max_turns: 4
+allowed_tools: [Read, Glob, Grep, Skill]
+---
+
+Run /code-review on the current branch and list the bugs it finds.

evals/skill-reviewing-adversarially-quiet-2/graders/skill-quiet.md

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+---
+type: tool_used
+tool: Skill
+input_match: '"skill"\s*:\s*"(?:voyage:)?reviewing-adversarially"'
+min: 0
+max: 0
+arm: both
+---

evals/skill-reviewing-adversarially-quiet-2/prompt.md

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+---
+description: "Routing case: the reviewing-adversarially skill must stay quiet on a request to tidy the wording of a text; that is editing, not a verdict. /trekresearch produces research briefs and is named as the owner."
+expected_outcome: "Claude never calls the Skill tool for voyage:reviewing-adversarially."
+tags: [skill-no-trigger, skill=reviewing-adversarially, owner=trekresearch, from=order-7d-negatives]
+runs: 3
+max_turns: 4
+allowed_tools: [Read, Glob, Grep, Skill]
+---
+
+Smooth the wording of my research brief's summary and fix the typos. Do not change what it says.