deepseek-ai/deepseek-harness · error · Error

pattern must be a non-empty string

Error message

pattern must be a non-empty string

What it means

Error "pattern must be a non-empty string" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/fs/tool-fs-search/src/glob.ts:73

  timeoutMs: number
}

/** Validated `glob` arguments. */
export interface GlobInput {
  pattern: string
  path?: string
}

/**
 * Validate value constraints the schema DSL can't express: a non-blank
 * `pattern`, and a non-blank `path` when given. Throws a plain `Error` (an
 * ordinary tool argument error) otherwise.
 *
 * @param args - the schema-validated `glob` arguments.
 * @returns the accepted input, unchanged.
 */
export function parseGlobArgs(args: { pattern: string; path?: string }): GlobInput {
  if (args.pattern.trim().length === 0) throw new Error('pattern must be a non-empty string')
  if (args.path !== undefined && args.path.trim().length === 0) throw new Error('path must be a non-empty string when given')
  return { pattern: args.pattern, ...args.path !== undefined ? { path: args.path } : {} }
}

/**
 * Build the fixed `rg --files` argv for one `glob` call. Every
 * model-controlled value ({@link GlobInput.pattern}, {@link GlobInput.path})
 * is a plain argv element — no shell layer exists, so no quoting applies; the
 * search root rides behind `--` so a leading-dash path can never be parsed as
 * a flag. `--sort=modified` orders by modification time, `--no-ignore
 * --hidden` searches ignored and hidden files, and
 * {@link GLOB_VCS_EXCLUDES} keeps VCS metadata out.
 *
 * @param input - the validated arguments.
 * @returns the complete ripgrep argument vector (excluding the binary itself).
 */
export function buildGlobCommand(input: GlobInput): string[] {
  const parts = [

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/fs/tool-fs-search/src/glob.ts:73 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/94ea8ae9f4704d8f. Report an issue: GitHub.