{"record":{"id":"cd3521e1512a2bb2","repo":"vercel/ai","slug":"invalid-acp-skill-name-json-stringify-skill-name","errorCode":null,"errorMessage":"Invalid ACP skill name ${JSON.stringify(skill.name)}: expected a kebab-case slug.","messagePattern":"Invalid ACP skill name (.+?): expected a kebab-case slug\\.","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/harness-acp/src/v1/acp-v1-skills.ts","lineNumber":110,"sourceCode":"\n  const rootDir = path.posix.join(implementationHomeDir, normalizedDirectory);\n  assertOutsideSessionWorkDir({ rootDir, sessionWorkDir });\n  return rootDir;\n}\n\nfunction validateACPSkills({\n  skills,\n}: {\n  skills: ReadonlyArray<HarnessV1Skill>;\n}): void {\n  const skillNames = new Set<string>();\n  for (const skill of skills) {\n    if (\n      !ACP_SKILL_NAME_PATTERN.test(skill.name) ||\n      skill.name === '.' ||\n      skill.name === '..'\n    ) {\n      throw new Error(\n        `Invalid ACP skill name ${JSON.stringify(skill.name)}: expected a kebab-case slug.`,\n      );\n    }\n    if (skillNames.has(skill.name)) {\n      throw new Error(\n        `Duplicate ACP skill name ${JSON.stringify(skill.name)}.`,\n      );\n    }\n    skillNames.add(skill.name);\n\n    const filePaths = new Set<string>();\n    for (const file of skill.files ?? []) {\n      const normalizedPath = validateACPAttachedFilePath({\n        skillName: skill.name,\n        filePath: file.path,\n      });\n      if (normalizedPath === 'SKILL.md') {\n        throw new Error(","sourceCodeStart":92,"sourceCodeEnd":128,"githubUrl":"https://github.com/vercel/ai/blob/69428b1f8b037e4d118fb4853428d5c4e620493c/packages/harness-acp/src/v1/acp-v1-skills.ts#L92-L128","documentation":"Error \"Invalid ACP skill name ${JSON.stringify(skill.name)}: expected a kebab-case slug.\" thrown in vercel/ai.","triggerScenarios":"Thrown at packages/harness-acp/src/v1/acp-v1-skills.ts:110 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"69428b1f8b037e4d118fb4853428d5c4e620493c","analyzedAt":"2026-08-30T12:32:21.016Z","schemaVersion":2},"datasetVersion":"2026-08-30T13:17:10.514Z"}