Write pin title & description

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

Annotations declare this as a read-only, idempotent, non-destructive operation with no open-world interaction. The description adds useful constraints about output format (variant count, character limits, keyword placement) but doesn't disclose any behavioral traits beyond what the annotations already cover.

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 concise sentence that front-loads the key output constraints. However, it crams multiple distinct pieces of information (variant count, title length, description length, keyword placement) without clear separation, making it slightly dense.

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 tool with 7 parameters, only 2 required, low schema coverage, and no output schema, the description is inadequate. It fails to explain what the tool does with the topic, keywords, and other inputs, and doesn't describe the expected output structure beyond basic formatting.

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 coverage is low at 29%. The description only mentions 'primary keyword' from the keywords parameter but doesn't explain other parameters like topic, cta, benefit, audience, digital, or variants. It provides some constraint awareness (character limits) but doesn't compensate for the missing parameter documentation.

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?

States a specific verb+resource: 'Write pin title & description variants'. This clearly distinguishes it from siblings like generate_pin_ideas (ideation) and analyze_pin_analytics (measurement). However, it focuses heavily on the output format rather than the core purpose of SEO copywriting, leaving some ambiguity about what 'write' means in this context.

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 guidance on when to use this tool versus alternatives like generate_pin_ideas or suggest_boards. The constraints on output format (1-4 variants, char limits) are present, but there's no indication of when this tool is appropriate or what prerequisites exist.

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