Run several external workers in parallel

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

With annotations only flagging readOnlyHint=false and openWorldHint=true, the description does real work: it discloses the concurrency cap, that results come back in request order, and that partial failures are reported per worker. It could go further on permission profiles and provider/auth prerequisites, but the failure-semantics disclosure is genuinely valuable beyond the annotations.

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?

Two tight sentences with no filler, and the primary behavior (concurrent execution) is front-loaded ahead of the return-order and failure details.

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?

For a fairly complex orchestration tool with a rich nested schema and no output schema, the description covers ordering, partial-failure semantics and the concurrency bound. However, it omits authorization/permission expectations and any routing cues against sibling tools, so an agent still has gaps to resolve before invoking.

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?

Schema coverage is 50%, but the nested worker object is extensively self-documented in the schema (role, permissionProfile, commands, context, etc.). The description adds only the 16-worker cap and the defaults.maxConcurrent bound; it does not explain the workers array shape or aggregateTimeoutMs behavior beyond what the schema states. Baseline 3 is appropriate.

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?

States a specific verb and resource: run up to 16 isolated workers concurrently and return results in request order. This is clear and concrete, but it never distinguishes itself from siblings like meah_run_agent or meah_delegate_task, which it superficially resembles.

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?

There is no explicit when-to-use guidance, no exclusions, and no named alternative. An agent cannot tell from the description whether to reach for this tool or meah_run_agent for a single task; the parallel-for-batching intent is only implied by 'concurrently'.

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