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

With no annotations, the description must disclose behavioral traits. It only reveals the cost ($0.05 USDC) and implies a read-only comparison. It does not mention what happens on mismatch, whether any state changes occur, rate limits, or authentication requirements, leaving significant behavioral ambiguity.

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 extremely concise: two short sentences with no redundancy. The main purpose is front-loaded, and the cost note is useful context. Every word 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?

Given the tool's complexity (5 parameters, nested intent object) and no output schema, this description is far from complete. It lacks return format, error handling, relationship to sibling tools, and any explanation of intent semantics or optional parameters, making it inadequate for reliable agent invocation.

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 0%, and the description only hints at two inputs: a 'mined Base transaction' (likely transactionHash) and 'buyer intent' (the intent object). The nested intent fields and optional parameters (intentId, referralCode, sourceAgentId) are left entirely unexplained, so the description provides minimal semantic value beyond the schema's bare structure.

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's function: 'Compare a mined Base transaction with buyer intent.' It uses a specific verb (compare) and resource (mined Base transaction) plus the intent object, distinguishing it from siblings like verify_swap_execution and preflight_transaction. The mention of cost also hints at a distinct paid verification service.

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 post-transaction use via the word 'mined', but provides no explicit when-to-use or when-not-to-use guidance relative to sibling tools. It does not mention alternatives like verify_swap_execution or preflight_transaction, leaving the agent to infer the appropriate context from the verb alone.

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