bulk_update_a_custom_account_field_value

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

Annotations already indicate it's a write (readOnlyHint false), non-destructive (destructiveHint false), and idempotent (idempotentHint true). The description confirms 'Modifies an existing record in place. Idempotent.' but adds no further behavioral context beyond annotation coverage.

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 extremely concise with three sentences that efficiently communicate the operation, resource, HTTP method, and key property (idempotency). No wasted words.

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?

Despite the tool having a nested input schema (body > array) and no output schema, the description does not explain the expected format of the request body (e.g., whether 'array' is genuinely an object or an array of objects), error handling, or return value. This lack of completeness could lead to misuse.

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 coverage is 100%, with each parameter documented. The tool description adds no additional meaning about parameter usage, making it redundant. Baseline 3 is appropriate.

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 this tool does a bulk update of custom field values for accounts, specifying the resource 'Account Custom Field Data' and HTTP method PATCH. The name differentiates it from siblings like 'bulk_update_a_custom_field_value' (for deals) and 'bulk_create_a_custom_account_field_value'.

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 lacks any guidance on when to use this tool versus alternatives like single-update or create tools. No prerequisites or scenarios are provided, leaving the agent without direction on tool selection.

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