solana_signAndSendTransaction

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

With no annotations, the description must disclose behavioral traits. It states 'sign and broadcast' but does not mention that this is a state-changing operation (e.g., sending SOL, executing a program), potential costs, or irreversible nature. No information about return value or error conditions is provided.

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 sentence, which is concise and front-loaded. However, it could be expanded slightly to include essential context without becoming verbose. It earns its place but is very brief.

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 5 parameters and no output schema, the description is incomplete. It does not explain what the tool returns (likely a transaction signature), how to handle errors, or the implications of the 'sponsor' parameter. An agent cannot fully understand the tool's behavior from this description alone.

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 each parameter has a description. The tool description adds no extra meaning beyond the schema. For example, 'sponsor' is described only as 'Enable gas sponsorship (requires Privy Dashboard config)' which is already in the schema. No additional context or clarification is provided.

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 signs and broadcasts a transaction with a Solana wallet. This distinguishes it from sibling tools like solana_signMessage (signs a message) and solana_signTransaction (signs only). However, it could be more explicit about the difference from solana_signTransaction.

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?

No guidance on when to use this tool versus alternatives. It does not mention prerequisites (e.g., wallet must be created and funded) or when to prefer solana_signTransaction for signing only. The description lacks any usage context or exclusions.

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