DXF File Summary

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

The annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the agent knows this is a safe read operation. The description adds detail about what the summary includes, which is useful, but it does not disclose additional behavioral traits such as error handling, file-size risks, or performance characteristics. No contradiction with annotations.

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 compact and well-structured: a single clear opening sentence followed by a terse list of the included summary fields. Every sentence earns its place, and the most important information is 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?

For a simple read-only summarization tool with one fully documented parameter, a safe annotation profile, and an existing output schema, the description is largely complete. It could strengthen routing by explicitly contrasting with sibling tools, but nothing critical is missing for an agent to 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?

There is only one parameter, file_path, and the schema already documents it as 'Absolute path to the .dxf file' with 100% coverage. The description does not add extra meaning beyond the schema, so the 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?

The description starts with a clear, specific verb and resource: 'Return a high-level overview of a DXF file.' It then enumerates the exact content areas (version, units, layer count, entity counts, block definitions, extents), making it unmistakably distinct from the more focused sibling tools like dxf_get_blocks or dxf_list_layers.

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?

Usage is implied rather than explicit: the tool is for a high-level summary, while siblings provide detailed or entity-specific views. However, the description does not explicitly state when to choose this tool over alternatives or mention any exclusions, so the agent must infer the appropriate context from the wording.

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