bridge_convert_url

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

With no annotations, the description carries the burden of disclosing behavior. It mentions the extension prerequisite and auto-discovery of the extension ID, which is useful. However, it does not disclose what the function returns, error behavior, or side effects, leaving some uncertainty for a conversion tool lacking an output schema.

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 two concise sentences, front-loaded with the primary action and immediately clarifying the distinctive extension requirement. Every word earns its place with no fluff or repetition.

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 the simple parameters and no output schema, the description covers the key prerequisites and use cases, but it omits the return format and failure modes. For a conversion tool, the lack of output information is a noticeable gap, making it not fully complete.

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% and the property descriptions already explain the URL format and extensionId override. The tool description adds redundant mention of auto-discovery but does not provide additional semantic value beyond the schema, matching the baseline for high coverage.

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 verb 'Convert a URL' and the resource 'using your Chrome extension', distinguishing it from sibling convert_url by emphasizing the extension requirement and specific use cases (Reddit, JS-rendered, login-protected pages). This avoids ambiguity with similar tools.

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 explicitly states when this tool is required (Reddit, JS-rendered sites, login-protected pages) and mentions the prerequisite (extension must be installed and running). It does not explicitly exclude alternatives or name them, but the context is clear enough for the agent to select appropriately.

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