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

Annotations only declare readOnlyHint=true; the description adds real behavioral context beyond that: results are ordered by pool_id, pagination is keyset-based, and each row's indexed state is null until indexed. It does not discuss rate limits or error behavior, but for a read-only list tool this is solid added value.

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?

Two dense sentences with the resource and scope front-loaded, then pagination and row semantics. Nothing is wasted, though 're-derived from its PoolKey' is jargon that adds length without much clarity for an unfamiliar agent.

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?

An output schema exists, so return-value detail is unnecessary, and the description covers the two things the schema cannot: ordering/pagination strategy and the null-until-indexed state. For a 7-parameter read-only listing tool, this is close to complete, with only sibling routing left unaddressed.

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 coverage is 100%, so all seven parameters are already documented, setting the baseline at 3. The description reinforces the filter modes (token, pair, extension) and the keyset cursor concept but adds little syntax or constraint detail beyond the schema.

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?

States a specific verb+resource ('Discover initialized pools') scoped to one chain and Core deployment, which separates it from the single-pool sibling get_pool. It does not explicitly name any sibling (e.g. discover_uniswap_pools) as an alternative, so it falls short of a 5.

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 implies the use case is enumeration with optional narrowing by token, pair or extension, and explains keyset pagination via the previous page's cursor. It gives no explicit when-to-use/when-not guidance or routing against siblings such as get_pool or discover_uniswap_pools.

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