instrumentation_hook_preset

Apply hook presets inside an instrumentation session.

SERVERJshookmcp SOURCE@jshookmcp/jshook

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-vmoranv-jshookmcp/instrumentation-hook-preset.md

WHAT IT DOES

What instrumentation_hook_preset does on Jshookmcp

AI agents invoke instrumentation_hook_preset 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.

RISK

Why instrumentation_hook_preset is rated High

Applies instrumentation hooks at runtime, triggering external operations with potentially wide impact.

From the tool's definition Apply hook presets inside an instrumentation session

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs instrumentation_hook_preset 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 instrumentation_hook_preset, this is the rule to start with:

instrumentation_hook_preset Rate-limited

instrumentation_hook_preset 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "instrumentation_hook_preset": {
      "limits": [
        {
          "counter": "instrumentation_hook_preset_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every instrumentation_hook_preset call is checked against it from then on.

FAQ

Questions about instrumentation_hook_preset

What does the instrumentation_hook_preset tool do? +

Apply hook presets inside an instrumentation session. 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.

How do I enforce a policy on instrumentation_hook_preset? +

Register the Jshook MCP server in PolicyLayer and add a rule for instrumentation_hook_preset: 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.

What risk level is instrumentation_hook_preset? +

instrumentation_hook_preset is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit instrumentation_hook_preset? +

Yes. Add a rate_limit block to the instrumentation_hook_preset 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.

How do I block instrumentation_hook_preset completely? +

Set action: deny in the PolicyLayer policy for instrumentation_hook_preset. 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.

What MCP server provides instrumentation_hook_preset? +

instrumentation_hook_preset 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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