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

With no annotations, the description carries the burden and discloses meaningful traits: short caching, a $0.002 x402 payment model, and pre-payment hash validation. It still omits failure behavior (e.g., pending or unknown tx) and rate-limit details, which keeps it short of a 5.

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 compact sentences, front-loaded with the resource and scope, followed by behavioral/payment notes. Every clause adds practical information with no repetition.

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?

No output schema exists, yet the description names the returned fields (status, block, confirmations) and explains cost and caching. For a simple RPC wrapper it is nearly complete, though pending/not-found handling remains unspecified.

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 67%, with tx_hash and request_id already documented in the schema and chain self-documented via enum. The description confirms chain scope (Base or Ethereum) and hash validation but adds no semantics for request_id idempotency or chain defaulting beyond what the schema provides.

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 resource (transaction receipt status, block, confirmations), the two supported chains, and the exact RPC method (eth_getTransactionReceipt). An agent can immediately distinguish it from siblings like block_number, gas_price, or token_price.

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 is implied by the RPC method and the required tx_hash: call it when you have a transaction hash and need receipt data. However, there is no explicit when-not-to-use guidance, no mention of alternatives for pending transactions, and no stated prerequisites beyond hash format.

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