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

The annotation readOnlyHint=true already establishes that this is a safe read operation. The description adds useful context by identifying the underlying Kickserv endpoint and clarifying what a task represents, but it does not disclose error behavior, authentication requirements, or response details.

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 two short sentences, front-loaded with the tool's purpose and followed by the concrete endpoint. Every element earns its place without repetition or filler.

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 simple read-only get-by-id tool with complete parameter documentation and a readOnlyHint annotation, the description supplies the needed domain context. It is nearly complete, though it could mention return format or error cases, which is a minor gap given the absence of an output schema.

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 the single task_id parameter is fully documented in the schema. The description adds only 'by id,' which does not meaningfully extend the schema's meaning, making the baseline of 3 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?

The description states a specific verb and resource: fetch one task by id. It also clarifies that a task is an appointment or to-do attached to a job, which helps distinguish it from job- or customer-level tools. It does not explicitly name alternatives among siblings, so it falls short of 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?

The phrase 'by id' implies usage: call this when you have a task_id and need the corresponding task. However, there is no explicit when-to-use, when-not-to-use, or alternative-tool guidance, so the usage context remains inferred.

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