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

Annotations declare readOnlyHint and openWorldHint, so the safety profile is covered. The description adds valuable behavioral context: it is free with a 100 calls/day rate limit, the verdict vocabulary (SINGLE KEY, MULTISIG NO TIMELOCK, TIMELOCKED, UNRESOLVED), and the comprehensive scope of what gets resolved. It does not explain error conditions or what an UNRESOLVED result implies operationally.

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 front-loaded with the purpose but then becomes a dense run-on enumeration of protocols, roles, chains, and verdicts. The chain list in particular is long and could be deferred or summarized, hurting readability.

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 two-parameter read-only tool with no output schema, the description covers what is resolved, the chain domain, and pricing limits. It is complete enough for an agent to invoke correctly, though it could better explain the verdict semantics or when UNRESOLVED occurs.

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% and both parameters are documented in the schema. The description adds chain IDs alongside names, which is useful but partially overlaps with the schema's example list. Baseline 3 is appropriate when the schema does the heavy lifting.

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 states a specific verb and resource ('On-chain control path of an EVM contract or Safe') and enumerates exactly what is resolved (proxy type, admin, owners, roles, verdict). It clearly distinguishes itself from 'watch_contract' by focusing on current ownership/control resolution rather than ongoing monitoring.

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?

Usage context is implied by the description ('control path,' 'verdict'), but there is no explicit when-to-use vs when-not-to-use guidance or mention of the sibling tool 'watch_contract'. An agent must infer that this is for point-in-time control analysis rather than monitoring.

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