activate_tools
Dynamically register specific tools by name, regardless of current base tier.
This record as markdown: /tools/io-github-vmoranv-jshookmcp/activate-tools.md
What activate_tools does on Jshookmcp
AI agents invoke activate_tools to trigger actions in Jshookmcp. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why activate_tools is rated High
This tool modifies the active set of available tools at runtime, potentially enabling higher-privilege or more dangerous tools that are otherwise restricted. This is an execution/configuration change with significant blast radius: an AI agent misusing it could unlock destructive, financial, or exploit-related tools (e.g., exploit_build_rop_chain, exploit_analyze_mitigations) that are currently gated by tier controls.
From the tool's definition 'Dynamically register specific tools by name' — activates tools at runtime, bypassing tier restrictions ('regardless of current base tier')
Attacks that exploit this kind of access
The rule that runs activate_tools safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For activate_tools, this is the rule to start with:
activate_tools stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every activate_tools call is checked against it from then on.
Questions about activate_tools
Dynamically register specific tools by name, regardless of current base tier. It is categorised as a Execute tool in the Jshookmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Jshook MCP server in PolicyLayer and add a rule for activate_tools: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Jshookmcp. Nothing to install.
activate_tools is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the activate_tools rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for activate_tools. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
activate_tools is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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