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

The annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered externally. The description's only contribution is that feeds are returned in order alongside auctions, which hints at a nested/expanded return shape but never says whether feeds are always embedded or how many. Defaults for paging are left entirely to the 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?

It is a single short fragment with zero wasted words, which is efficient, but the terseness crosses into under-specification rather than tightness. There is no verb to front-load and no structure to guide reading.

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 list endpoint with pagination, search filtering, and an implied nested feed payload — and no output schema — the definition leaves too much unstated. An agent cannot tell the result shape, ordering guarantees, or how the payload relates to list_ssp_feeds.

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 all three parameters (page, search, per_page) already document their semantics and bounds. The description adds no filtering or paging detail beyond the schema, so the baseline of 3 applies.

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?

"SSP auctions with their ordered feeds" names the resource and adds a relationship detail (each auction carries ordered feeds), but it is a noun fragment with no verb and no scope statement. It also fails to distinguish this from near-identical siblings such as list_ssp_feeds and list_ssp_bids, so the agent must infer the boundary from names alone.

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?

There is no when-to-use guidance, no exclusion of alternatives, and no mention of when to reach for list_ssp_feeds instead. Nothing tells an agent under what conditions this list tool is the right call.

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