set_breakpoint

Set a breakpoint in a GDScript file at a specific line, optionally with a condition

SERVERGodot SOURCE@keeveeg/godot-mcp

Medium RISK CLASS

Category Write

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/keeveeg-godot-mcp/set-breakpoint.md

WHAT IT DOES

What set_breakpoint does on Godot

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

Parameter	Type	Required	Description
`line`	integer	Yes	Line number to set breakpoint on
`condition`	string	—	Optional condition expression - breakpoint only triggers when true
`script_path`	string	Yes	Script file path (e.g. 'res://scripts/player.gd')

Parameters from the server's own tool schema.

RISK

Why set_breakpoint is rated Medium

Setting a breakpoint modifies debug metadata in a script file (marking a line for debugging), which is a reversible write operation. It does not execute code, delete data, or have financial implications. Breakpoints can be removed, making this a reversible modification with low blast radius.

From the tool's definition Set a breakpoint in a GDScript file at a specific line, optionally with a condition

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_breakpoint safely

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

set_breakpoint Rate-limited

set_breakpoint 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": {
    "set_breakpoint": {
      "limits": [
        {
          "counter": "set_breakpoint_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 Godot, apply this rule, and every set_breakpoint call is checked against it from then on.

FAQ

Questions about set_breakpoint

What does the set_breakpoint tool do? +

Set a breakpoint in a GDScript file at a specific line, optionally with a condition. It is categorised as a Write tool in the Godot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does set_breakpoint accept? +

set_breakpoint accepts 3 parameters: line, condition, script_path. Required: line, script_path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on set_breakpoint? +

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

What risk level is set_breakpoint? +

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

Can I rate-limit set_breakpoint? +

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

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

set_breakpoint is provided by the Godot MCP server (@keeveeg/godot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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