Send Agent EOA Transaction

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

With no annotations, the description carries the full burden. It usefully discloses that the transaction bypasses popup approval, a critical safety-relevant behavior. However it does not state that broadcasting is irreversible, what wallet/profile prerequisites are required, or how gas defaults are applied — gaps that matter for an unguarded mutation tool.

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 sentences, zero waste. The primary action is front-loaded and the usage constraint follows immediately.

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?

For a 10-parameter, zero-required, no-annotation transaction-signing tool with no output schema, the description covers the routing decision well but leaves behavioral risk (irreversibility, required wallet setup) and half the parameters unexplained.

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 only 50%: data, chain, value, walletId and profileId are documented, but to, gas, gasPrice, maxFeePerGas and maxPriorityFeePerGas are not. The description adds no parameter meaning at all, so it fails to compensate for the undocumented half.

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 states a specific verb and resource ("Sign and broadcast a transaction") and scopes it to a raw local agent EOA, which implicitly contrasts with the popup-approval path used by siblings like send_transaction. It does not name an alternative tool explicitly, so sibling differentiation is by contrast rather than by name.

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?

It gives an explicit selection condition: use only when the user explicitly chose the raw agent wallet. It also names the behavioral alternative (WalletChan popup approval) that this bypasses, but does not name a specific sibling tool to use instead.

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