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

The description suggests a read-only operation ('Get transaction details'), but annotations indicate destructiveHint=true and readOnlyHint=false. This is a direct contradiction, fundamentally misleading the agent about the tool's behavior.

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 a single concise sentence that directly states the purpose. No unnecessary words or sections.

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?

The simple parameter count and schema coverage are sufficient for a basic get tool, but the contradiction with annotations makes the description inadequate and potentially dangerous. No output schema is provided, and the description does not clarify return behavior.

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%, so the baseline is 3. The description does not add any parameter semantics beyond the schema's description of transaction_id as a hash/txid.

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 using a transaction ID, using a specific verb and resource. It distinguishes from sibling tools like get_transaction_history and is_transaction_pending.

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 appropriate usage context: when you have a transaction ID and need details. It does not explicitly exclude alternatives or mention when not to use, but the context is clear.

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