search_all_models

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

Despite no annotations, the description discloses key behavioral traits: parallel search across sources, interleaved results, and the limitation that MakerWorld returns a search URL due to no direct API access. It also describes result fields (source, is_free, has_printable_files, has_sliceable_files). However, it does not mention rate limits, authorization, or pagination behavior beyond the page/per_page parameters.

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 well-structured with clear sections, bullet points, and examples. Every sentence adds value, and it is appropriately sized for the tool's complexity. No unnecessary repetition.

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 search tool with no output schema, the description effectively covers inputs, behavioral details (parallel search, source differences), output fields, and next steps via related tools. It is sufficiently complete for an AI agent to understand and invoke the tool correctly.

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 description provides detailed explanations for all 5 parameters, including examples for query ('raspberry pi case', 'benchy') and explanations for sort order and sources. This adds significant meaning beyond the bare schema (which has 0% coverage). The parameter descriptions are thorough and actionable.

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 tool searches across multiple 3D model marketplaces simultaneously, listing specific sources (Thingiverse, MyMiniFactory, Cults3D, MakerWorld) and mentioning interleaved results. It distinguishes from sibling tools like 'browse_models' and 'search_models' by specifying cross-marketplace search and referencing subsequent tools (model_details, model_files, download_model) for further actions.

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 explains when to use the tool (to search across connected marketplaces) and provides usage context: MakerWorld returns a URL rather than models, and the optional 'sources' parameter allows restriction. It also directs users to related tools (model_details, model_files, download_model) for follow-up. While not explicitly stating when not to use it, the guidance is clear and actionable.

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