stop_timer

Stop a client-side timer on a Huly issue. Returns the stop timestamp. Calculate elapsed time from start/stop timestamps and use log_time to record it.

SERVERHuly SOURCEdugynoo/huly-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dugynoo-huly-mcp/stop-timer.md

WHAT IT DOES

What stop_timer does on Huly

AI agents use stop_timer to create or update resources in Huly, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Huly environment.

RISK

Why stop_timer is rated Medium

Stopping a timer modifies the state of a running timer (from active to stopped) and records a stop timestamp. This is a reversible state change (Write), not a destructive action. The actual time logging is a separate step via log_time. Misuse could result in incorrect time tracking but has limited blast radius.

From the tool's definition Stop a client-side timer on a Huly issue. Returns the stop timestamp. Calculate elapsed time from start/stop timestamps and use log_time to record it.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs stop_timer safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Huly, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stop_timer, this is the rule to start with:

stop_timer Rate-limited

stop_timer stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stop_timer": {
      "limits": [
        {
          "counter": "stop_timer_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about stop_timer

What does the stop_timer tool do? +

Stop a client-side timer on a Huly issue. Returns the stop timestamp. Calculate elapsed time from start/stop timestamps and use log_time to record it. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on stop_timer? +

Register the Huly MCP server in PolicyLayer and add a rule for stop_timer: 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 Huly. Nothing to install.

What risk level is stop_timer? +

stop_timer is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit stop_timer? +

Yes. Add a rate_limit block to the stop_timer 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 stop_timer completely? +

Set action: deny in the PolicyLayer policy for stop_timer. 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 stop_timer? +

stop_timer is provided by the Huly MCP server (dugynoo/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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