delegate_batch

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description bears full responsibility for behavioral disclosure. It usefully notes that one failure does not cancel the batch. However, it omits other critical behaviors such as how results are returned, whether tasks share state, or any execution limits, leaving significant gaps for a tool that manages parallelism.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise, using only two sentences. Every sentence provides distinct value: the first states the core purpose, the second adds a critical behavioral trait. No unnecessary words or redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite the tool's simple parameter set, the description is incomplete. It does not explain the return format, error propagation beyond non-cancellation, or any constraints on parallelism. With no output schema and no parameter descriptions, the agent lacks sufficient information to invoke the tool correctly in a complex workflow.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0% description coverage and the description does not explain the 'tasks' parameter beyond stating it runs tasks in parallel. It fails to clarify what each object in the array should contain (e.g., same fields as delegate_task input). This is a major omission that forces the agent to guess the parameter's structure.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool runs tasks in parallel, using the verb 'Run' and resource 'independent local tasks.' It distinguishes from the sibling 'delegate_task' by emphasizing parallelism and independence. However, it does not explicitly define what constitutes a 'local task,' relying on the schema's generic array of objects, which slightly reduces specificity.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for parallel independent tasks, but it provides no explicit guidance on when to choose this tool over siblings like 'delegate_task' (single task) or 'delegate_file'/'delegate_pdf' (specialized tasks). The absence of when-not-to-use or alternative recommendations leaves the agent to infer context from tool names alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.