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

Annotations already indicate destructiveHint=true and readOnlyHint=false, so a mutation is expected. The description adds valuable behavioral context: it submits a transaction for on-chain execution, involves 'paid value-action', requires user confirmation, and is non-custodial. This goes beyond what annotations provide, though some redundancy exists with the input schema description.

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 overly verbose, with a large block of repetitive SAP MCP context that appears both in the description and the input schema. The core purpose is stated concisely in the first sentence, but the rest is bloated and contains redundant instructions. This diminishes clarity and wastes tokens.

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 the tool's simplicity (2 parameters) and the presence of an output schema, the description adequately covers the high-level workflow. It explains the execution chain and signer requirements. However, it omits details about the return value or how to verify success, though these may be covered by the output schema.

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?

Input schema coverage is 100% with descriptions for both parameters. The description does not add meaningful new information beyond the schema; it repeats the same SAP MCP boilerplate text. The baseline score of 3 is appropriate because the schema already carries the parameter semantics.

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 submits a signed limit-order transaction for on-chain execution. The verb 'submit' and resource 'signed limit-order transaction' are specific. However, it does not explicitly distinguish itself from sibling tool 'jupiter_executeOrder', which likely serves a similar but different purpose (e.g., market orders). This lack of differentiation prevents a score of 5.

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 provides extensive but misdirected guidance about SAP MCP execution workflow, but fails to address when to use this tool versus alternatives like jupiter_executeOrder or jupiter_cancelLimitOrder. It does not mention prerequisites such as requiring a previously created limit order or that the transaction must be signed by the user. The agent is left without clear decision logic.

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