render_2d_structure

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

The description discloses that the tool writes PNG to disk and shows output inline, but does not explain the return format, behavior with conflicting inputs, or the effect of max_structures. No annotations are present to supplement.

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 concise (two sentences) and front-loaded with the main purpose. However, it could be structured with bullet points for clarity.

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 five parameters and no output schema, the description covers core functionality but omits details on max_structures, default output path, and inline display semantics. The sibling tool list is large but no differentiation is provided.

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?

With 0% schema description coverage, the description adds meaning for smiles, input_path, and legend_property, but does not explain max_structures or output_path. The description provides partial clarity beyond the schema.

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 renders molecules as 2D PNG images inline, specifying the two input options (smiles or input_path). It differentiates from siblings by focusing on 2D structure rendering, but does not explicitly contrast with similar tools like generate_2d_report.

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 smiles vs input_path and gives an example for legend_property, but lacks guidance on when to use this tool over alternatives (e.g., generate_2d_report) or contexts to avoid.

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