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

No annotations are provided, so the description alone must convey behavioral traits. It discloses the cost ($0.005 per call) and the provider mechanism (multi-provider JSON-RPC). However, it does not mention read-only nature, error handling, rate limits, or response format. The cost disclosure is valuable, but other aspects are omitted.

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 sentences, each serving a purpose (what the tool does, and its cost). No filler words. Information is front-loaded with the primary action and resource.

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?

With no output schema, the description should hint at what 'details' means, but it does not. For a single-parameter read tool, this is adequate but leaves the agent uncertain about the returned structure. Cost and chain info are helpful, but completeness is only moderate.

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?

The input schema covers 100% of parameters with a clear description ('0x-prefixed 32-byte transaction hash'). The description adds no extra meaning beyond the schema, so a baseline score of 3 is appropriate.

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 retrieves transaction details by hash on Base mainnet, using multi-provider JSON-RPC. This is a specific verb+resource pair, and among sibling tools like chain_balance (balance queries) and chain_block_number (block queries), this tool is distinct.

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 usage for transaction hash lookups but does not explicitly state when to use this tool versus alternatives (e.g., preview tools cost less but may have different data). No guidance on when not to use or prerequisites.

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