send_sticker

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

Annotations indicate readOnlyHint=false and destructiveHint=false, so the description does not need to restate that. However, it adds no behavioral context beyond that, such as message delivery semantics, error conditions, or side effects. With minimal annotation detail and no additional description, the tool's behavior is largely undisclosed.

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 extremely short, which is concise, but it is essentially a tautology of the tool name. It provides no structured information, no examples, and no breakdown of key behaviors. The sentence is under-specified rather than efficiently informative.

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 11 parameters, no output schema, and low schema coverage, the description is completely inadequate. There is no mention of return values, possible failures, permission requirements, or any contextual cues that would help an agent invoke this tool correctly.

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 only 36%, with just chat_id and sticker having descriptions. The description 'Send a sticker' provides no information about any of the 11 parameters, leaving all undocumented parameters without any clue to their purpose. The description fails to compensate for the low schema coverage.

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 verb 'Send' and the resource 'sticker', which distinguishes it from sibling tools like send_message, send_photo, and send_animation. However, it lacks any additional scope or context, so it falls short of a top-tier description that would include specifics such as target chat or method of sticker identification.

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 guidance on when to use this tool versus alternatives. No mention of when stickers are appropriate, prerequisites, or exclusions. The sibling list contains many send_* tools, and the description does not clarify when this tool should be selected over them.

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