catalog_overview

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

With no annotations provided, the description carries the full burden of behavioral disclosure. 'Overview' and 'discover' imply a safe, read-only informational tool, but the description does not say what the response contains (e.g., a list of categories, tool names, descriptions) or any structural details. The implied non-destructive nature is helpful but the surface remains thin.

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?

Two short sentences that front-load the purpose ('Overview...') and the usage signal ('Start here'). Every word earns its place; no filler or redundancy.

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 zero-parameter discovery tool with no output schema, this is adequately complete: it establishes the tool as an entry point to discover categories. It could mention the output format, but given the simplicity level, nothing critical is missing for correct invocation.

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?

Zero parameters, so the baseline of 4 applies. The description correctly has nothing to explain about parameters, and schema coverage is trivially 100% with an empty properties object.

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 states a clear, specific purpose: an overview of all PoetryDB MCP tools for discovering categories. The 'overview... discover categories' framing distinguishes it from siblings like catalog_category and the various search_* tools, though it could be slightly more explicit about what it returns.

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?

'Start here' gives a clear entry-point signal, indicating this is where an agent should begin discovery. However, it does not state when NOT to use it or name alternatives (e.g., catalog_category for specific category details). The usage context is implied rather than explicit.

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