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

With no annotations provided, the description carries the full burden. It discloses the return type ('Returns a deleted confirmation') and the token cost (8 tokens). The word 'Remove' makes the destructive nature clear, and the prerequisite call provides useful behavioral context. It does not cover irreversibility or permissions, but for a simple identifier deletion, this is adequate.

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 concise and front-loaded: purpose, prerequisite, parameter usage, return value, and cost are each covered in short, clear sentences. Every sentence provides distinct value with no redundancy.

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 that an output schema exists, the description need not explain return values beyond the confirmation statement. It covers the prerequisite connection step and optional parameter handling, which are important for correct use. The cost note adds completeness. Minor omission is lack of error behavior, but overall it is sufficient for a delete tool with fully described 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?

The input schema provides 100% coverage, with detailed descriptions for both identifier_id and clerk_instance_id. The description adds only a restatement of the clerk_instance_id usage ('Pass clerk_instance_id to target a specific connection, or omit it to use the default account'), which is already present in the schema. No additional semantic depth is added.

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 begins with 'Remove an allowlist identifier by id,' which clearly states the action (remove) and the resource (allowlist identifier). This distinguishes it from sibling tools like delete_blocklist_identifier and create_allowlist_identifier.

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 a clear prerequisite: 'Call clerk.get_connected_accounts first.' It also explains the optional clerk_instance_id parameter with conditions for use and omission. While it does not explicitly mention alternatives or when not to use, the context is sufficient for correct invocation.

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