execute_chat

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

No annotations provided, so description carries full burden. It only states the action 'Send a message' but does not disclose behavioral traits such as side effects (e.g., creating a new message in the session), required permissions, or error conditions (e.g., if session does not exist).

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?

Very concise with a clear one-line summary followed by bulleted args and returns. No extraneous text, well-structured for quick consumption.

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?

Adequate for a simple tool with 3 parameters and an output schema (not shown). However, it lacks contextual completeness: it does not mention that a chat session must exist, or how the tool behaves if the session is invalid. The return value is described generically as 'Chat response with AI message' but no details about the response structure.

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 0%. The description adds one-line explanations for parameters (e.g., 'Session ID', 'Optional context data'), but these add only marginal meaning beyond the parameter names. Context parameter gets a slightly more detailed description, but overall the parameter semantics are minimal.

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?

Description clearly states the action 'Send a message in a chat session'. However, it does not explicitly differentiate from sibling tools like ask_question or ask_simple, which might also involve sending messages in a session.

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?

No guidance on when to use this tool versus alternatives such as ask_question or ask_simple. The description only states what the tool does without providing decision criteria.

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