Function parseToolListString

src/utils/markdownConfigLoader.ts:77–106

* Parses tools from frontmatter, supporting both string and array formats * Always returns a string array for consistency * @param toolsValue The value from frontmatter * @returns Parsed tool list as string[]

(toolsValue: unknown)

 * @returns Parsed tool list as string[]
 */
function parseToolListString(toolsValue: unknown): string[] | null {
  // Return null for missing/null - let caller decide the default
  if (toolsValue === undefined || toolsValue === null) {
    return null
  }

  // Empty string or other falsy values mean no tools
  if (!toolsValue) {
    return []
  }

  let toolsArray: string[] = []
  if (typeof toolsValue === 'string') {
    toolsArray = [toolsValue]
  } else if (Array.isArray(toolsValue)) {
    toolsArray = toolsValue.filter(
      (item): item is string => typeof item === 'string',
    )
  }

  if (toolsArray.length === 0) {
    return []
  }

  const parsedTools = parseToolListFromCLI(toolsArray)
  if (parsedTools.includes('*')) {
    return ['*']
  }
  return parsedTools
}

/**
 * Parse tools from agent frontmatter