MITRE ATT&CK MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the output includes techniques and optionally descriptions, but does not specify format (e.g., list, JSON), pagination, rate limits, authentication needs, or error handling. For a tool with no annotation coverage, this leaves significant behavioral gaps, though it at least clarifies the core function.

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 in the first sentence, followed by a structured 'Args' section that efficiently explains each parameter. Every sentence earns its place with no redundant or vague language, making it appropriately sized and easy to parse.

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 no annotations and no output schema, the description provides adequate basics (purpose and parameters) but lacks details on return format, error cases, or performance traits. For a tool with 3 parameters and moderate complexity in a security context, it is minimally viable but leaves room for more completeness, such as explaining the structure of returned techniques.

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 0%, so the description must compensate. It provides clear semantics for all three parameters: 'group_stix_id' specifies the group identifier, 'domain' lists valid values ('enterprise', 'mobile', or 'ics') with a default implied, and 'include_description' explains its effect on output. This adds substantial value beyond the bare schema, though it could note that 'domain' defaults to 'enterprise' explicitly.

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 the specific action ('Get all MITRE ATT&CK techniques used by group') and identifies the resource ('by group STIX ID'). It distinguishes from siblings like 'get_all_techniques' (which retrieves all techniques without group filtering) and 'get_techniques_used_by_campaign' (which filters by campaign instead of group). The purpose is precise and differentiated.

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 implies usage when querying techniques associated with a specific group, but does not explicitly state when to use this tool versus alternatives like 'get_groups_using_technique' (which reverses the relationship) or 'get_techniques_by_tactic' (which filters by tactic). No exclusions or prerequisites are mentioned, leaving usage context partially implied rather than fully guided.

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