Understand Technical Diagram

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

With no annotations, the description carries full burden for behavioral disclosure. It only states the tool 'reads' and 'explains', but does not mention any constraints (e.g., image format, clarity requirements), side effects, or return format. This is minimal beyond purpose.

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?

Description is a single 14-word sentence, front-loaded with the verb 'Read'. Every word is meaningful, and there is no redundancy or unnecessary detail.

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 no output schema and no annotations, the description should explain what the tool returns (e.g., a textual explanation) and mention any limitations. It only says 'explain its components and relationships', which is vague. The tool is simple (2 params) but still incomplete for an agent to fully understand the behavior.

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?

Schema description coverage is 100%; both parameters have descriptions in the schema. The tool description adds no additional meaning or context for the parameters. Baseline 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?

Description clearly states the verb 'Read' and 'explain', the resource 'technical diagrams' (architecture, flowchart, UML, ER diagram), and the outcome 'components and relationships'. It distinguishes from siblings like analyze_data_visualization (data charts) and describe_ui (UI elements) by specifying diagram types.

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?

Description implies use for technical diagrams by listing types, but provides no explicit when-to-use or when-not-to-use guidance nor comparison to sibling tools. The agent must infer usage from the listed types.

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