indexnow_submit_url

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

No annotations are provided, so the description carries the full burden. It mentions the notification of multiple search engines and the env var requirement, but lacks details on rate limits, error handling, or what happens if prerequisites aren't met. The behavioral disclosure is minimal.

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 concise with two sentences. The first sentence states the purpose, and the second adds a prerequisite. It is front-loaded and wastes no words, though structure could be slightly improved by grouping requirements separately.

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 low complexity (one parameter, no enums) and presence of an output schema, the description still lacks explanation of return values, side effects, or domain restrictions. It leaves the agent with incomplete context for a production environment.

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 0%, and the description adds no meaning beyond the schema for the 'url' parameter. It only says 'a single URL' without specifying format, validation, or other constraints.

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 'Notify' and the resource 'a single URL', listing specific search engines. It distinguishes from the sibling tool 'indexnow_submit_urls' by specifying 'single URL'.

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 provides a prerequisite (env var and hosted key file) but does not explicitly state when to use this tool vs alternatives or when not to use it. Usage is implied but not fully guided.

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