{
 "provenance": {
  "source": "https://github.com/garrytan/gstack/actions/runs/39207508651 eval slice 3, plan-eng-coverage-audit (claude-opus-5-5); the first Bash call and its result, byte-exact",
  "recordedPassed": false,
  "recordedFailures": [
   "missing successful source-file read",
   "missing successful test-file read"
  ]
 },
 "cwd": "/home/runner/.cache/gstack-paid-shard-LcqBEz/tmp/skill-e2e-plan-eng-review-coverage-ZqqvIJ",
 "sessionId": "57278890-6314-4027-81d1-cd7c0041b348",
 "call": {
  "toolUseId": "toolu_017eDbqRbXZ1KgwfLu1MkB92",
  "command": "cd /home/runner/.cache/gstack-paid-shard-LcqBEz/tmp/skill-e2e-plan-eng-review-coverage-ZqqvIJ; wc -l plan-eng-review/SKILL.md plan-eng-review/sections/review-sections.md; cat src/billing.ts; echo ----; cat test/billing.test.ts",
  "isError": false,
  "output": "   359 plan-eng-review/SKILL.md\n  1542 plan-eng-review/sections/review-sections.md\n  1901 total\n\nexport function processPayment(amount: number, currency: string) {\n  if (amount <= 0) throw new Error('Invalid amount');\n  if (currency !== 'USD' && currency !== 'EUR') throw new Error('Unsupported currency');\n  return { status: 'success', amount, currency };\n}\n\nexport function refundPayment(paymentId: string, reason: string) {\n  if (!paymentId) throw new Error('Payment ID required');\n  if (!reason) throw new Error('Reason required');\n  return { status: 'refunded', paymentId, reason };\n}\n\n// coverage-read-evidence: 464ac75f-f634-4507-ab80-301fa99c4d72\n----\n\nimport { describe, test, expect } from 'vitest';\nimport { processPayment } from '../src/billing';\n\ndescribe('processPayment', () => {\n  test('processes valid payment', () => {\n    const result = processPayment(100, 'USD');\n    expect(result.status).toBe('success');\n  });\n  // GAP: no test for invalid amount\n  // GAP: no test for unsupported currency\n  // GAP: refundPayment not tested at all\n});\n\n// coverage-read-evidence: 03ff5e05-d277-409f-8467-45dedf773ad8"
 },
 "finalOutput": "## Test review: `src/billing.ts` (targeted audit)\n\nI read `src/billing.ts` and `test/billing.test.ts` and treated the two exported functions as the codepaths under review. Vitest is the framework, per the test file's import. As asked, I skipped architecture, code quality, performance, test generation and the rest of the workflow, and I didn't change any files.\n\n```\nCODE PATHS                                              USER FLOWS\n[+] src/billing.ts                                      [+] Take a payment (caller → processPayment)\n  ├── processPayment(amount, currency)                    ├── [★★  TESTED] Valid USD charge — billing.test.ts:6\n  │   ├── guard: amount <= 0 → throw 'Invalid amount'     ├── [GAP]        Valid EUR charge\n  │   │   ├── [GAP]         amount = 0 (boundary)         └── [GAP]        Caller sees 'Invalid amount' /\n  │   │   └── [GAP]         amount < 0                                     'Unsupported currency' error\n  │   ├── guard: currency not USD/EUR → throw\n  │   │   ├── [GAP]         'GBP' / '' / 'usd' (case)    [+] Refund a payment (caller → refundPayment)\n  │   │   └── [GAP]         'EUR' allowed branch          ├── [GAP]        Successful refund\n  │   ├── return { status:'success', amount, currency }   └── [GAP]        Caller sees 'Payment ID required' /\n  │   │   └── [★★  TESTED] (100,'USD') → status only                       'Reason required' error\n  │   │                    — billing.test.ts:6-9\n  │   └── edge: NaN / Infinity amount\n  │       └── [GAP]         NaN <= 0 is false → NaN passes the guard and returns 'success'\n  │\n  └── refundPayment(paymentId, reason)   ← never imported by the test file\n      ├── guard: !paymentId → throw 'Payment ID required'\n      │   └── [GAP]         '' / undefined paymentId\n      ├── guard: !reason → throw 'Reason required'\n      │   └── [GAP]         '' / undefined reason\n      └── return { status:'refunded', paymentId, reason }\n          └── [GAP]         happy path\n\nLegend: ★★★ behavior + edge + e",
 "files": {
  "source": "\nexport function processPayment(amount: number, currency: string) {\n  if (amount <= 0) throw new Error('Invalid amount');\n  if (currency !== 'USD' && currency !== 'EUR') throw new Error('Unsupported currency');\n  return { status: 'success', amount, currency };\n}\n\nexport function refundPayment(paymentId: string, reason: string) {\n  if (!paymentId) throw new Error('Payment ID required');\n  if (!reason) throw new Error('Reason required');\n  return { status: 'refunded', paymentId, reason };\n}\n\n// coverage-read-evidence: 464ac75f-f634-4507-ab80-301fa99c4d72\n",
  "tests": "\nimport { describe, test, expect } from 'vitest';\nimport { processPayment } from '../src/billing';\n\ndescribe('processPayment', () => {\n  test('processes valid payment', () => {\n    const result = processPayment(100, 'USD');\n    expect(result.status).toBe('success');\n  });\n  // GAP: no test for invalid amount\n  // GAP: no test for unsupported currency\n  // GAP: refundPayment not tested at all\n});\n\n// coverage-read-evidence: 03ff5e05-d277-409f-8467-45dedf773ad8\n"
 }
}