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

Annotations already declare this read-only, idempotent and non-destructive, so safety is covered. The description adds substantive behavior beyond that by disclosing the recursive return shape (nested sub-requests, per-node status/agent/budget, aggregated status roll-up), which is exactly what an agent needs to decide whether to call it.

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: the return payload first, the use case second. No filler, no repetition of the title, and the most load-bearing detail (recursive tree with roll-up) is front-loaded.

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?

With no output schema, the description is the only source of return-value information and it does a reasonable job. It omits, however, anything about tree size limits, truncation at depth, or how large recursive results are paginated or bounded — a real concern for an unbounded-depth fetch.

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 description coverage is 100%, so task_id and the optional token override are fully documented in the schema. The description only implicitly confirms that task_id selects the tree root and adds no semantics about depth, sub-request ordering, or the token's role. Baseline 3 applies.

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 states a concrete resource and shape: a request plus all nested sub-requests, each with status, agent and budget, plus a status roll-up. That is far more specific than the bare name 'task_tree'. It does not, however, differentiate this from related lookups like get_request, list_requests or circle_tasks.

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?

'Use it to coordinate delegated work' implies a scenario but never names a condition that selects this tool over get_request or list_requests. There are no exclusions and no guidance on when a flat request lookup would be preferable.

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