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schwarztim

PowerShell Empire MCP Server

by schwarztim

empire_plugins

List and execute Empire plugins to extend functionality for post-exploitation tasks.

Instructions

Manage Empire plugins

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actionYesAction to perform
plugin_idNoPlugin ID (for execute)
optionsNoPlugin execution options (for execute)
Behavior1/5

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

No annotations provided, so the description carries full burden. It only says 'Manage', which does not disclose whether operations are read-only or destructive, nor does it mention any side effects, authentication needs, or rate limits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three words is too concise for a tool with multiple actions and nested parameters. The description lacks structure and does not earn its place; it is under-specified.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema and a complex tool with both listing and execution actions, the description is completely inadequate. It does not explain return values, side effects, or how to interpret results.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with descriptions for all three parameters. The description adds no extra meaning beyond the schema, but the baseline for high coverage is 3.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'Manage Empire plugins' is vague; the verb 'manage' does not specify what operations are supported. The schema reveals 'list' and 'execute' actions, but the description fails to communicate this specific purpose, making it unclear how this tool differs from siblings.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like empire_shell, empire_listeners, etc. No context on prerequisites for executing plugins or typical use cases.

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

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