simulate_incoming_message

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

No annotations are present, so the description carries the full burden. It reveals the underlying telegram endpoint and the app override behavior, but does not disclose side effects, whether an actual external send/event is triggered, auth/permission needs, or response behavior.

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?

Three short lines, front-loaded purpose, and zero waste; channel and app clarifications are formatted as compact parameter notes.

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 5- parameter tool with no annotations and no output schema, three of five parameters are uncleared and there is no return or side-effect information. It is not complete enough for an agent to invoke correctly with confidence.

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%, so the description must compensate. It explains channel and app, but the required sender and text fields, along with extra, receive no semantic explanation beyond their names.

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?

States a specific verb and resource: simulate an external user sending an inbound message to the app. It also specifies concrete channels (telegram via an endpoint, and whatsapp), making it immediately distinct from sibling simulation and webhook tools.

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?

Gives contextual details about channel choices and app targeting, including that app overrides set_app for this call, but never states when to prefer this tool over siblings or 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.