deepseek-ai/deepseek-harness · error · Error

limit must be less than or equal to ${maxLimit}

Error message

limit must be less than or equal to ${maxLimit}

What it means

Error "limit must be less than or equal to ${maxLimit}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/fs/tool-fs/src/read.ts:60

function parsePositiveInteger(value: number, name: string): number {
  if (!Number.isFinite(value) || !Number.isInteger(value) || value < 1) {
    throw new Error(`${name} must be a positive integer`)
  }
  return value
}

/**
 * Validate value constraints the schema DSL can't express. `maxLimit` is the deployment's line cap.
 * @param args - the schema-validated raw tool arguments; `offset`/`limit` must be positive integers when given.
 * @param maxLimit - the configured line cap: both the default `limit` and the largest one accepted.
 * @returns the validated input with `offset` defaulted to 1 and `limit` to `maxLimit`.
 */
export function parseReadArgs(args: { file_path: string; offset?: number; limit?: number }, maxLimit: number): ReadInput {
  if (args.file_path.trim().length === 0) throw new Error('file_path must be a non-empty string')
  const offset = args.offset === undefined ? 1 : parsePositiveInteger(args.offset, 'offset')
  const limit = args.limit === undefined ? maxLimit : parsePositiveInteger(args.limit, 'limit')
  if (limit > maxLimit) throw new Error(`limit must be less than or equal to ${maxLimit}`)
  return { filePath: args.file_path, offset, limit }
}

/**
 * Register the `read` tool and its system-prompt guidance.
 * @param ctx - the plugin context; registrations are effects scoped to it, and execution uses its `fs` service.
 * @param caps - the deployment's resolved read caps (plugin config after defaulting).
 */
export function applyReadTool(ctx: Context, caps: ReadToolCaps): void {
  ctx.systemPrompt.section({
    name: 'tool:read',
    order: 100,
    text: 'Use the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.',
  })

  ctx.tools.register(defineTool({
    name: 'read',
    description: 'Read a UTF-8 text file and return line-numbered content.',

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/fs/tool-fs/src/read.ts:60 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/6b61a67e00b01a97. Report an issue: GitHub.