create_a_message

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

With no annotations and a one-word description, the tool discloses no behavioral traits such as permissions, side effects, or whether it creates a message in a specific channel. This is a critical gap for a creation action.

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?

While the description is a single sentence, it sacrifices necessary information for brevity. It is under-specified rather than concisely 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?

Given no output schema, no annotations, and zero parameters, the description provides no context about what a 'message' constitutes, where it appears, or prerequisites. Compared to richer siblings, this is completely inadequate.

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?

Input schema has zero parameters, so the description cannot add parameter-level meaning beyond the name. Baseline of 4 is appropriate as schema coverage is 100% (empty) and no parameter details are needed.

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 'Create a message' states the action and resource but fails to differentiate from the sibling tool 'create_a_new_message_in_a_conversation'. It is unclear if this creates a message in a conversation or standalone, leading to ambiguity.

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 is provided on when to use this tool versus alternatives like 'create_a_new_message_in_a_conversation'. The agent receives no context for selection.

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