Subtract one region from another. 从当前ROI区域中减去输入的ROI区域。 The new region contains the parts of the original region that are not in the other region. 新的区域包含原始区域中不在另一个区域中的部分。 If a non-empty region is subtracted by an empty region, a copy of the original region is returned. 一个非空区域减去空区域，获得该区域对象的拷贝。 I...
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_subtract 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_subtract 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_subtract:
rules:
- action: allow
rate_limit:
max: 30
window: 60See the full Leaper Vision Toolkit policy for all 169 tools.
Subtract one region from another. 从当前ROI区域中减去输入的ROI区域。 The new region contains the parts of the original region that are not in the other region. 新的区域包含原始区域中不在另一个区域中的部分。 If a non-empty region is subtracted by an empty region, a copy of the original region is returned. 一个非空区域减去空区域，获得该区域对象的拷贝。 If an empty region is subtracted by a non-empty region, the complement of the other region is returned. 一个空区域减去一个非空区域，获得后者的取反区域。 并输出一个新的复合ROI区域对象(ILCompoundRegion类型)的描述JSON。 其中ILCompoundRegion类型继承于ILRegion类型 . 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_subtract. 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_subtract 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_subtract 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_subtract. 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_subtract 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