senders_update

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

With no annotations provided, the description carries full burden for behavioral disclosure. It indicates the tool modifies state (update), but does not disclose behaviors like whether the operation is idempotent, what permissions are required, or if partial updates are supported. The description only mentions the HTTP method and a vague update process.

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 short (3 sentences) but includes unnecessary phrasing like 'The response body will contain a JSON object with the attributes of your sender.' which adds little value for an agent that already has the output schema. It could be more concise by focusing on key usage 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?

Given that an output schema exists and there are only 2 parameters (1 required), the description is relatively complete. It explains the HTTP method, endpoint pattern, and response format. However, it lacks detail on potential errors or side effects, but this is acceptable for a simple update operation.

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 parameters are fully documented in the schema. The description adds no additional meaning beyond the schema, such as clarifying the sender_id is a required path parameter or that name is optional for updates. 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?

The description clearly states the tool updates a sender via PATCH request. However, it does not differentiate from sibling tools like senders_create or senders_delete, relying on the tool name for distinction. The purpose is adequate but not distinctive.

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 provides no guidance on when to use this tool vs alternatives (e.g., when to update vs create a sender). It lacks context for prerequisites, such as needing an existing sender ID, and does not mention when not to use it.

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