generate_svg_placeholder

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

Annotations are minimal (readOnlyHint=false). The description 'Generate' implies creation, but no details on side effects, output format, or behavior. For a generation tool with no output schema, more behavioral context is needed to inform the agent about expected results.

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?

Single sentence, no unnecessary text. It is appropriately concise, though it could add a bit more value without becoming verbose.

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?

No output schema, so the description should explain return value or behavior. It does not mention whether the SVG is returned inline or as a file, nor does it detail default text behavior. Incomplete for a generation tool.

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?

All 5 parameters have descriptions in the input schema (100% coverage). The description adds no additional meaning beyond what's already in the schema. Baseline score of 3 is appropriate.

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?

Clear verb 'Generate' and resource 'SVG placeholder images'. Purpose is well-defined, but it does not differentiate from sibling tools that also generate various outputs (e.g., QR codes, passwords). However, no other sibling specifically generates SVG placeholders, so it's sufficiently distinct.

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?

No explicit usage guidance. The description implies use for generating placeholder images, but does not indicate when to use this tool versus alternatives (e.g., other generators). Minimal guidance, acceptable for a straightforward tool.

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