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quarantine_security

Destructive

Review and manage quarantined MCP servers and tools to prevent Tool Poisoning Attacks. Supports server-level quarantine and tool-level approval for schema changes.

Instructions

Security quarantine management for MCP servers and tools. Review and manage quarantined servers and tools to prevent Tool Poisoning Attacks (TPAs). Supports server-level quarantine and tool-level approval for individual tool description/schema changes. NOTE: Unquarantining servers is only available through manual config editing or system tray UI for security.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNoServer name (required for inspect_quarantined, quarantine_server, inspect_tools, approve_tool, approve_all_tools)
operationYesSecurity operation: list_quarantined, inspect_quarantined, quarantine_server, inspect_tools, approve_tool, approve_all_tools
tool_nameNoTool name (required for approve_tool operation)
Behavior3/5

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

Annotations indicate destructiveHint=true, and description mentions quarantining/approving as destructive actions. The NOTE adds transparency about unquarantining limitations. However, details on side effects of each operation are missing.

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

Conciseness5/5

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

Very concise: two sentences plus a note, front-loaded with purpose. Every sentence adds necessary context without redundancy.

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

Completeness3/5

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

Covers overall purpose but lacks per-operation details (e.g., return values, what each operation does). With no output schema, more specific descriptions for each operation would improve completeness.

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%, so baseline 3. Description enumerates operations but adds no additional semantic depth beyond the schema's parameter descriptions.

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

Purpose4/5

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

Description clearly states the tool manages quarantine of MCP servers and tools to prevent TPAs, with specific operations listed. It distinguishes from siblings like call_tool_*, but does not explicitly contrast with all alternatives.

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 explicit guidance on when to use this tool versus alternatives like call_tool_read or retrieve_tools. The NOTE on unquarantining is a constraint but does not help choose among siblings.

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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