semantic_index_page

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

Annotations already indicate idempotency and a non-read-only nature. The description confirms the tool performs a write (add to index) but does not disclose additional behavior such as duplicate handling, authentication, or rate limits. It is adequate but not extra.

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 a single, front-loaded sentence with no wasted words. It clearly communicates the core action without 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 the tool's simplicity and the presence of an output schema and annotations, the description covers the essential action. It could be improved by mentioning return values or noting that the format parameter controls the output format, but it is largely 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?

The schema has 0% description coverage, so the description should explain the parameters. It does not explicitly define the 'url' or 'format' parameters. While 'url' is implied, 'format' is left ambiguous (output format vs. storage format). The enum values are not explained.

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 tool fetches a page and adds it to the semantic search index, using specific verbs and a clear resource. It distinguishes the tool from siblings like 'fetch' (which does not index) and 'semantic_search' (which searches the index).

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 no explicit guidance on when to use this tool versus alternatives. It does not mention when not to use it or list sibling tools like 'fetch' or 'extract_structured'. The purpose is implied, but lacking comparative context.

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