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

Annotations already mark this as non-read-only and destructive, and the description adds meaningful behavior beyond that: transactionBase64 is returned only after builder-side RPC simulation passes; approval is gated on safeToApprove and approvalBlocked; and the signer boundary is made explicit with hosted builders never receiving keypair bytes. No contradiction with annotations was found.

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 first sentence front-loads the core purpose, and the safety/approval instructions are concise. The SAP MCP execution guidance adds useful routing and pricing context but is boilerplate-like and somewhat redundant with the schema description. Still, every part earns its place overall.

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 complexity as a paid hosted builder, the description covers the full call flow: estimate, pay/build, simulation-gated return, approval safety, local finalization, and signer boundary. An output schema exists, so return-value details are not required. The guidance is sufficient for an agent to invoke and handle the result correctly.

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 fully describes all three parameters, including enums for side and principalToken and a description for owner. The description itself adds no parameter-level meaning beyond the schema, so it stays at the baseline of 3 for full schema coverage.

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 opens with a specific verb-and-resource statement: 'Build an unsigned transaction to cancel take profit on an Adrena position.' This clearly distinguishes it from siblings like sap_adrena_build_set_take_profit and sap_adrena_build_cancel_stop_loss. It also adds important scope details: returns transactionBase64 only after builder-side simulation passes.

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 clear operational context: it is a paid hosted unsigned transaction builder, requires sap_estimate_tool_cost first, and needs local finalization when signing is required. It also gives an explicit guardrail: show approval only when safeToApprove=true and approvalBlocked=false. However, it does not explicitly name sibling alternatives or state when to prefer this over cancel_stop_loss or set_take_profit.

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