Generate a mask image from a region. 为当前ROI区域生成一个蒙版图像，以指定的位置和尺寸。 White pixels in the mask image represent areas within the region. 图像中的白像素表示该位置包含在当前区域中。 If position and size are not specified (x, y, w, h all 0), the mask is generated based on the region's bounding box. 若指定的位置和尺寸均为空，即 x, y, w 和 ...
Part of the Leaper Vision Toolkit MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents use il_region_to_mask to create or modify resources in Leaper Vision Toolkit. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call il_region_to_mask repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Leaper Vision Toolkit.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
tools:
il_region_to_mask:
rules:
- action: allow
rate_limit:
max: 30
window: 60See the full Leaper Vision Toolkit policy for all 169 tools.
Generate a mask image from a region. 为当前ROI区域生成一个蒙版图像，以指定的位置和尺寸。 White pixels in the mask image represent areas within the region. 图像中的白像素表示该位置包含在当前区域中。 If position and size are not specified (x, y, w, h all 0), the mask is generated based on the region's bounding box. 若指定的位置和尺寸均为空，即 x, y, w 和 h 均为 0，则蒙版图像基于区域的包围盒位置生成。 并输出生成的蒙版图像(ILImage类型)的描述JSON。 . It is categorised as a Write tool in the Leaper Vision Toolkit MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Add a rule in your Intercept YAML policy under the tools section for il_region_to_mask. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Leaper Vision Toolkit MCP server.
il_region_to_mask is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the il_region_to_mask rule in your Intercept 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.
Set action: deny in the Intercept policy for il_region_to_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.
il_region_to_mask is provided by the Leaper Vision Toolkit MCP server (leaper-mcp/leaper-mcp-proxy). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept