dictionary_modules

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is fully covered by structured data. The description adds only that entries carry entry counts and licenses, giving a modest hint about payload contents but nothing on ordering, filtering, or how results feed downstream tools.

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?

A single short sentence with no filler, so nothing is wasted. The trade-off is that its brevity comes at the cost of a missing verb and any routing information, but structurally it is tight and front-loaded.

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?

With no parameters and no output schema, the description must convey what comes back and what to do with it. It hints at counts and licenses but never explains that the returned module identifiers are meant to be passed to 'dictionary' or similar tools, leaving the workflow incomplete.

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 takes zero parameters, so there is nothing for the description to disambiguate; baseline 4 applies. The schema is an empty object with full coverage, leaving no semantic gap to fill.

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 sentence names the resource ('dictionary and lexicon modules') and hints at returned fields (entry counts, licenses), but it omits a verb entirely — is this listing, fetching, or describing modules? It also fails to distinguish itself from the sibling 'dictionary' tool, which an agent could easily confuse with it.

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?

There is no statement of when to call this versus 'dictionary', 'commentary_modules', or any other sibling, and no mention of prerequisites or follow-up steps. The agent must infer that this is a discovery step preceding an actual dictionary lookup.

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