High Risk →

recompute

Force recompute of all objects in a document. Args: doc_name: Document to recompute. Uses active document if None. Returns: Dictionary with result: - success: Whether recompute completed - touch_count: Number of objects that were recomputed

How to control recompute ↓

AI agents invoke recompute to trigger actions in FreeCAD Robust 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.

High Risk

This tool forces a recomputation/recalculation of all objects in a FreeCAD document. It executes an operation that triggers external computation in FreeCAD, which may have cascading effects on 3D model geometry and dependencies. It doesn't simply read data, nor does it create/modify/delete data directly — it triggers a computational process, making Execute the best fit.

From the tool's definition 'Force recompute of all objects in a document' — triggers a computational operation across all document objects

Documented attack patterns abuse exactly the kind of access recompute gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and FreeCAD Robust MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for recompute:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "recompute": {
      "limits": [
        {
          "counter": "recompute_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

recompute 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.

  1. Create a free account and register FreeCAD Robust MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the recompute tool do? +

Force recompute of all objects in a document. Args: doc_name: Document to recompute. Uses active document if None. Returns: Dictionary with result: - success: Whether recompute completed - touch_count: Number of objects that were recomputed. It is categorised as a Execute tool in the FreeCAD Robust MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on recompute? +

Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for recompute: 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 FreeCAD Robust MCP Server. Nothing to install.

What risk level is recompute? +

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

Can I rate-limit recompute? +

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

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

recompute is provided by the FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every FreeCAD Robust MCP Server tool call.

Deterministic rules across all 152 FreeCAD Robust MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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