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

Goes well beyond the annotations by disclosing the cost model ($0.01/call via x402 USDC or card key, first 25 free, failed calls free) and the consequence that repeated calls are billed, which is consistent with idempotentHint=false. It also caps the return size at 100 logs. Minor shortfall: no note on behavior when no logs match or on block-range errors.

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?

Front-loads what the tool returns and follows with filtering, usage, cost, and safety notes in a logical order. Slight redundancy: 'Reads or computes only and changes nothing' restates readOnlyHint=true, and the pricing sentence is dense but earns its place.

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 three-parameter read tool with no output schema, it covers scope limits, return contents, filtering semantics, the alternative tool, and the billing model. An agent has everything needed to decide to call it and to interpret the result.

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%, so the schema already documents all three parameters. The description largely restates the same facts (1-1,000 blocks, default 50, topic0 as the 0x 32-byte event signature hash) and only adds a concrete address example, so the baseline 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?

States a specific verb and resource ('Recent contract event logs on Gnosis (eth_getLogs)') with scope ('the events a contract emitted over the last N blocks') and return shape. It distinguishes itself from gnosis_receipt, though it does not mention the equally close sibling gnosis_token_transfers, which agents may want for transfer-watching.

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?

Gives explicit when-to-use ('watch transfers or contract events') and names an alternative with its selecting condition ('for one transaction's outcome use gnosis_receipt'). The gap is that the more direct transfer-log sibling, gnosis_token_transfers, is never mentioned or excluded.

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