environment_set_sky

SERVERBreakpoint SOURCEbreakpoint-mcp

Medium RISK CLASS

Category Write

Parameters 31 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/breakpoint-mcp/environment-set-sky.md

WHAT IT DOES

What environment_set_sky does on Breakpoint

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

Parameter	Type	Required	Description
`path`	string	Yes	Environment res:// path
`confirm`	boolean	—	Auto-approve this destructive action (skip the confirmation prompt)
`sky_material`	string	—	Sky material kind (default procedural)

Parameters from the server's own tool schema.

RISK

Why environment_set_sky is rated Medium

Despite the tool labeling itself 'DESTRUCTIVE', it writes/modifies an existing Environment resource file rather than deleting or irreversibly destroying data. It overwrites the file with new sky settings, which is a reversible modification (the file can be restored). The label 'DESTRUCTIVE' here refers to file-writing side effects, not irreversible deletion. It is gated by confirmation, reducing blast radius.

From the tool's definition Attach a Sky to an existing Environment resource file...and switch its background to SKY, then re-save. DESTRUCTIVE (writes a file) — gated by confirmation.

Risk signalsAccepts file system path (path)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs environment_set_sky safely

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

environment_set_sky Rate-limited

environment_set_sky 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": {
    "environment_set_sky": {
      "limits": [
        {
          "counter": "environment_set_sky_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 Breakpoint, apply this rule, and every environment_set_sky call is checked against it from then on.

FAQ

Questions about environment_set_sky

What does the environment_set_sky tool do? +

Attach a Sky to an existing Environment resource file (setting a ProceduralSkyMaterial, PhysicalSkyMaterial, or PanoramaSkyMaterial) and switch its background to SKY, then re-save. DESTRUCTIVE (writes a file) — gated by confirmation. Refuses a path that is not an Environment. It is categorised as a Write tool in the Breakpoint MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does environment_set_sky accept? +

environment_set_sky accepts 3 parameters: path, confirm, sky_material. Required: path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on environment_set_sky? +

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

What risk level is environment_set_sky? +

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

Can I rate-limit environment_set_sky? +

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

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

environment_set_sky is provided by the Breakpoint MCP server (breakpoint-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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