get_topics

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

No annotations are provided, so the description carries full burden. It mentions 'Fetch' but doesn't disclose behavioral traits such as whether this is a read-only operation, potential rate limits, authentication needs, or what the return format looks like. The example adds minimal value beyond the basic 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?

The description is brief with two sentences, but the example 'get_topics()' is redundant as it restates the tool name without adding value. It could be more front-loaded by omitting the example or replacing it with more informative content, making it somewhat inefficient.

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 the tool has no parameters and no output schema, the description is minimal. It lacks context on what 'available topics' entails (e.g., format, scope, or relation to siblings), making it incomplete for guiding an AI agent effectively in a server with multiple ROS-related tools.

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?

The tool has 0 parameters, and schema description coverage is 100%, so no parameter documentation is needed. The description doesn't add parameter details, which is appropriate here, but it also doesn't compensate for any gaps since there are none. A baseline of 4 reflects that the description doesn't detract from the complete 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 action ('Fetch') and resource ('available topics from the ROS bridge'), making the tool's purpose understandable. However, it doesn't explicitly differentiate from sibling tools like 'get_services' or 'get_message_details', which would require a more specific scope statement.

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 versus alternatives. With siblings like 'get_publishers_for_topic' and 'get_subscribers_for_topic', it's unclear if this tool lists all topics broadly or serves a specific subset, leaving usage context ambiguous.

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