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

Annotations already declare readOnlyHint=true, so the safe read nature is carried by structured data. The description adds only the REST endpoint correspondence (GET /api/tasks/{id}), no return shape or error behavior. With annotations covering safety, a 3 is appropriate.

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 short sentences with the purpose front-loaded and zero padding. The REST mapping is a minor value-add rather than waste. Slightly more terse than necessary but well structured.

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 single-resource read with one fully documented parameter and no output schema, the definition is minimally sufficient. It gives no indication of what the returned task contains or how errors (e.g. unknown id) surface, but the low complexity limits the practical risk.

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% (the id parameter is documented as 'The task id.'), so the schema does the heavy lifting. The description adds no format, type, or sourcing detail for the id beyond what the schema provides, so 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?

States a specific verb (Get) and resource (task) with explicit scope (single, by id), which clearly separates it from the sibling list_tasks. The REST endpoint mapping reinforces the operation. It stops short of explicitly naming the sibling alternative, so not a 5.

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?

Usage is implied: fetch one task when you have its id. There is no explicit when-to-use statement, no exclusion of list_tasks, and no mention of prerequisites. Adequate but with a clear gap.

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