{"record":{"id":"76ea1330ab5d6933","repo":"pbakaus/impeccable","slug":"concept-seed-platform-must-be-one-of-composit-76ea13","errorCode":null,"errorMessage":"concept-seed: --platform must be one of ${COMPOSITION_PLATFORMS.join(', ')}","messagePattern":"concept-seed: --platform must be one of (.+?)","errorType":"validation","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"skill/scripts/concept-seed.mjs","lineNumber":330,"sourceCode":"  if (register !== null && register !== 'safer' && register !== 'bolder') {\n    throw new Error('concept-seed: --register must be safer or bolder');\n  }\n  if (register !== null && reroll < 1) {\n    throw new Error('concept-seed: --register steers a re-roll round; pass --reroll <n> with it');\n  }\n  if (register !== null && scope !== 'direction') {\n    throw new Error('concept-seed: --register applies to direction rounds only');\n  }\n  if (mode !== null && !SEED_MODES.has(mode)) {\n    throw new Error('concept-seed: --mode must be persuade, operate, read, or experience');\n  }\n  // Grain needs no mode: how much of the product is in play is independent of\n  // which register of work it is.\n  if (grain !== null && !COMPOSITION_GRAINS.includes(grain)) {\n    throw new Error(`concept-seed: --grain must be one of ${COMPOSITION_GRAINS.join(', ')}`);\n  }\n  if (platform !== null && !COMPOSITION_PLATFORMS.includes(platform)) {\n    throw new Error(`concept-seed: --platform must be one of ${COMPOSITION_PLATFORMS.join(', ')}`);\n  }\n  if (!Number.isInteger(candidateCount) || candidateCount < 5 || candidateCount > 7) {\n    throw new Error('concept-seed: --candidate-count must be an integer from 5 to 7');\n  }\n  const unit = (salt) => {\n    const h = crypto.createHash('sha256').update(`${scope}:${salt}:${key}`).digest();\n    return h.readUInt32BE(0) / 0xffffffff;\n  };\n  const indexSalt = reroll === 0 ? 'index' : `index:reroll-${reroll}`;\n  const buildIndex = 3 + Math.floor(unit(indexSalt) * (candidateCount - 2)); // 3..candidateCount\n  // Surface scope deals a hand of three grounded structures: one card is not\n  // a choice, and the full ranked list would hand selection back to the\n  // model's taste. The dice pick all three; the primary index leads. The\n  // no-lineup rule stays direction-only, where it was written for worlds.\n  const dealtIndices = [buildIndex];\n  for (let draw = 0; scope === 'surface' && dealtIndices.length < Math.min(3, candidateCount); draw += 1) {\n    const idx = 1 + Math.floor(unit(`${indexSalt}:deal-${draw}`) * candidateCount);\n    if (!dealtIndices.includes(idx)) dealtIndices.push(idx);","sourceCodeStart":312,"sourceCodeEnd":348,"githubUrl":"https://github.com/pbakaus/impeccable/blob/d14711ae3d1a1dd62dee61a358d27f107c51ccd0/skill/scripts/concept-seed.mjs#L312-L348","documentation":"Thrown when `platform` is set to a value not in COMPOSITION_PLATFORMS = [web, ios, android]. Platform is optional (default null). Note 'adaptive' is deliberately excluded — it is a project-level value meaning both native targets, not a property of a single composition. The dynamic message interpolates the allowed list.","triggerScenarios":"Passing 'mobile', 'desktop', 'native'; passing 'adaptive' (rejected); passing 'macos' or 'windows'; confusing platform with grain.","commonSituations":"Assuming 'mobile' covers ios+android; trying to use the project-level 'adaptive' value at the composition level; a caller forwarding an OS string from the runtime.","solutions":["Use exactly web, ios, or android, or omit platform / pass null.","If you meant 'both native targets', that is the project-level 'adaptive' concept and is not valid here — pick web, ios, or android per composition."],"exampleFix":"// before\nawait seedConcepts({ scope: 'surface', platform: 'mobile' });\n\n// after\nawait seedConcepts({ scope: 'surface', platform: 'ios' }); // or web|android","handlingStrategy":"type-guard","validationCode":null,"typeGuard":"import { COMPOSITION_PLATFORMS, isPlatform } from './lib/roll-selection.mjs';\nfunction isValidPlatform(v) {\n  return v == null || isPlatform(v);\n}","tryCatchPattern":null,"preventionTips":["Use web, ios, or android only, or omit / pass null.","'adaptive' is a project-level value and is intentionally rejected at the composition level.","Do not pass 'mobile'/'desktop'; pick web/ios/android explicitly."],"tags":["validation","concept-seed","cli","enum"],"backgroundTag":null,"analyzedSha":"d14711ae3d1a1dd62dee61a358d27f107c51ccd0","analyzedAt":"2026-08-13T00:52:25.771Z","schemaVersion":2},"datasetVersion":"2026-08-13T04:17:16.726Z"}