blogger_blogs_getByUrl

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

No annotations are provided, so the description must carry the full burden. It only says 'Retrieve' which implies a read operation, but it doesn't disclose what metadata is returned, error behavior, permissions, or rate limits. This is not misleading, but it's minimal for a tool with no annotation support.

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 exactly two sentences, front-loaded with the purpose, and has zero filler. Every word earns its place, making it highly concise and well-structured.

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 single-resource GET with two well-described parameters, the description covers the essential selection criteria and the unique URL-based identifier. It doesn't explain what the metadata includes or specify authentication requirements, but given the simplicity, the tool is adequately described for selection and invocation.

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?

The input schema fully documents both parameters (url and view) with descriptions, so schema coverage is 100%. The description adds no additional meaning beyond what the schema already provides, so the baseline 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 clearly states the verb 'Retrieve' plus the specific resource 'a single blog's metadata' and the scoping method 'by its public URL.' This distinguishes it from sibling tools like blogger_blogs_get (likely by ID) and blogger_blogs_listByUser (by user), so the agent can easily differentiate.

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?

It provides a clear usage context: 'Useful when you only know the blog address.' This tells the agent when to select this tool, though it doesn't explicitly mention alternatives or when not to use it. The context is clear enough to guide selection.

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