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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds genuinely useful access-control semantics beyond that: a delegated agent sees only withdrawals it requested and others are 'not found' (404-style), which is meaningful behavior not expressed in the annotations.

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 tight sentences with no padding. The scope statement is front-loaded and the delegation caveat follows. Slightly dense phrasing in the second sentence, but every clause carries information.

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 single-item get-by-ID tool with no output schema, the description adequately conveys scope and access behavior. It falls short on the input parameter and gives no sense of what a successful result contains, leaving gaps an agent would want filled.

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?

There is one required parameter (withdrawal_id) with 0% schema description coverage, and the description never mentions it or explains its expected format, provenance, or how to obtain it. The name is fairly self-evident, but the description contributes nothing to compensate for the coverage gap.

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?

"One of my withdrawals" largely restates the title rather than stating a verb+resource, but the follow-on sentence clarifies scope: it retrieves a single withdrawal on the wallet this agent uses. It is distinguishable from list_withdrawals only by the singular phrasing, with no explicit verb or sibling reference.

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?

There is no when-to-use guidance and no named alternative. The agent must infer that this is for fetching one withdrawal by ID versus list_withdrawals for enumeration. The delegation note describes visibility, not when to select this tool.

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