Fission-AI/OpenSpec · error · ChangeMetadataError

Invalid YAML in metadata file: ${parseError.message}

Error message

Invalid YAML in metadata file: ${parseError.message}

What it means

Error "Invalid YAML in metadata file: ${parseError.message}" thrown in Fission-AI/OpenSpec.

Source

Thrown at src/utils/change-metadata.ts:121

  let content: string;
  try {
    content = fs.readFileSync(metaPath, 'utf-8');
  } catch (err) {
    const ioError = err instanceof Error ? err : new Error(String(err));
    throw new ChangeMetadataError(
      `Failed to read metadata: ${ioError.message}`,
      metaPath,
      ioError
    );
  }

  let parsed: unknown;
  try {
    parsed = yaml.parse(content);
  } catch (err) {
    const parseError = err instanceof Error ? err : new Error(String(err));
    throw new ChangeMetadataError(
      `Invalid YAML in metadata file: ${parseError.message}`,
      metaPath,
      parseError
    );
  }

  // Validate with Zod
  const parseResult = ChangeMetadataSchema.safeParse(parsed);
  if (!parseResult.success) {
    throw new ChangeMetadataError(
      `Invalid metadata: ${parseResult.error.message}`,
      metaPath
    );
  }

  // Validate that the schema exists
  const availableSchemas = listSchemas(projectRoot);
  if (!availableSchemas.includes(parseResult.data.schema)) {

View on GitHub (pinned to 6926ccb18a)

When it happens

Trigger: Thrown at src/utils/change-metadata.ts:121 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Fission-AI/OpenSpec@6926ccb18a (2026-08-25). Data as JSON: /api/errors/e612d6ab691ed618. Report an issue: GitHub.