agentbrush_edit_mask

SERVERMcp Server SOURCE@agentbrush/mcp-server

High RISK CLASS

Category Execute

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-agentbrush-mcp-server/agentbrush-edit-mask.md

WHAT IT DOES

What agentbrush_edit_mask does on Mcp Server

AI agents invoke agentbrush_edit_mask to trigger actions in Mcp Server. 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.

Parameter	Type	Required	Description
`image_path`	string	Yes	Absolute path to the image to edit
`instruction`	string	Yes	What should change in the masked area (max 500 chars)
`quality_hint`	string	—	Quality level for the edit: low=1 token, medium=5 tokens (default), high=20 tokens at 1024×1024.

Parameters from the server's own tool schema.

RISK

Why agentbrush_edit_mask is rated High

This tool triggers an external browser-based operation (opens a browser tab, blocks execution for up to 30 minutes waiting for user interaction) and produces a modified image artifact. It spans Write (modifies an existing image) and Execute (triggers browser actions and external operations). Per the rules, Execute is more severe than Write, so Execute is selected.

From the tool's definition Open a browser-based mask editor... then block until the user accepts a result... The tool opens a browser tab where the user draws a mask... Returns the edited image path

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs agentbrush_edit_mask safely

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

agentbrush_edit_mask Rate-limited

agentbrush_edit_mask 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": {
    "agentbrush_edit_mask": {
      "limits": [
        {
          "counter": "agentbrush_edit_mask_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 Mcp Server, apply this rule, and every agentbrush_edit_mask call is checked against it from then on.

FAQ

Questions about agentbrush_edit_mask

What does the agentbrush_edit_mask tool do? +

Open a browser-based mask editor for spatial precision edits on an existing image, then block until the user accepts a result. Use this instead of agentbrush_generate when the change requires repositioning, area-specific modifications, removing or adding elements in a specific region, or any edit that text prompts alone cannot express. How it works: 1. The tool opens a browser tab where the user draws a mask over the area to modify. 2. The user describes the change and submits the edit. 3. The tool blocks while the user edits (up to 30 minutes). 4. Returns the edited image path, token cost, and remaining balance when the user accepts a result. If you want to hand the editor URL to the user and continue working while they draw, call agentbrush_edit_mask_open instead and then agentbrush_edit_mask_result to retrieve the image. Requires authentication — run agentbrush_login first if not authenticated. image_path must be an absolute path to an existing image file within the project. instruction describes what should change in the masked area (max 500 characters). quality_hint: low=1 token, medium=5 tokens (default), high=20 tokens at 1024×1024. It is categorised as a Execute tool in the Mcp Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

What parameters does agentbrush_edit_mask accept? +

agentbrush_edit_mask accepts 3 parameters: image_path, instruction, quality_hint. Required: image_path, instruction. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on agentbrush_edit_mask? +

Register the Mcp Server MCP server in PolicyLayer and add a rule for agentbrush_edit_mask: 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 Mcp Server. Nothing to install.

What risk level is agentbrush_edit_mask? +

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

Can I rate-limit agentbrush_edit_mask? +

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

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

agentbrush_edit_mask is provided by the Mcp Server MCP server (@agentbrush/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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