picus_get_threat_action

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

No annotations are provided, so the description carries the full burden. It discloses that the response includes affected platforms, attack category/module, framework mappings (MITRE/UKC), process details, keyword queries, and epoch timestamps. This adds significant behavioral context beyond a simple 'get detail' statement, though it does not explicitly state that it is a read-only operation.

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 two sentences. The first sentence clearly states the purpose. The second sentence lists the key data points included. There is no extraneous information, and every sentence adds value. It is front-loaded and efficient.

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 there is no output schema, the description does an excellent job of outlining what the agent can expect: platforms, attack category/module, framework mappings, process details, keyword queries, and timestamps. This covers the essential information for a detail retrieval endpoint. No critical gaps are apparent.

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 only one parameter (action_id) with no description in the schema (0% coverage). The tool description does not elaborate on the parameter's meaning beyond what is implied by the name and context. Since it is a simple integer and the purpose is clear, the description provides minimal additional value for parameter understanding. A score of 3 reflects that the parameter is self-evident but not enhanced by the description.

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 'Get full detail for a single action from the Threat Library.' It specifies the verb (get) and the resource (full detail for a single action). This distinguishes it from sibling tools like picus_list_threat_actions (list) and picus_get_threat (get a threat, not an action).

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?

While no explicit when-to-use or exclusion statements are given, the purpose implies it is for retrieving detailed information about a specific action. The agent can infer from the name and description that this is for detail retrieval, and sibling tools like list variants serve different purposes. The lack of explicit alternatives prevents a higher score.

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