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

The annotations already mark this as a safe read-only operation, but the description adds important behavioral context beyond that: unlisted accounts are not attackable, empty results are valid, and accounts may still exist for other purposes such as posture scanning. It also documents the defaultRegion semantics for subsequent attacks, which is not captured by 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?

The description is front-loaded with the core purpose and the launch_attack dependency. Every sentence carries operational value: empty-result interpretation, accountNo/accountName roles, and defaultRegion behavior are all relevant and not repeated elsewhere.

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?

Without an output schema, the description still explains the important returned fields: accountNo, accountName, and defaultRegion. It also covers the empty-result case and the distinction between eligibility for attack emulation and existence in Mitigant, so the agent has enough context to call and interpret the tool 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?

Schema description coverage is 100%, and the single optional cloud_service parameter is fully documented in the schema, including enum-like allowed values and empty-string handling. The description does not add further parameter meaning beyond what the schema already provides, so the baseline of 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 states a specific verb and resource: list the cloud accounts available for attack emulation. It also distinguishes this preparatory lookup from the sibling launch_attack by explaining that account_no must come from this list before launching an attack.

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?

It explicitly says to check this tool before guessing an account_no for launch_attack, and explains that unlisted accounts cannot be attacked. It also clarifies that an empty result is not a failure, which prevents the agent from misinterpreting a valid empty response.

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