cao_demo
WHEN you are about to draw ANY French building for the first time, or when a user asks for a plan / DXF / IFC and you have not yet used these tools — call this FIRST. It hands back a COMPLETE, ALREADY-VERIFIED scene (zero audit alerts) plus the exact next calls in order. FREE, no API key, 0 units...
This record as markdown: /tools/fr-synergieloc-immobilier/cao-demo.md
What cao_demo does on Immobilier
AI agents use cao_demo to create or update resources in Immobilier, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Immobilier environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
exemple | string | — | maison = single-storey house with a two-slope roof; appartement = T3 flat, no roof; extension = veranda grafted onto an existing wall |
Parameters from the server's own tool schema.
Why cao_demo is rated Medium
An AI agent can call cao_demo faster than any human can review: one bad instruction and it creates or modifies resources in Immobilier by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs cao_demo safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Immobilier, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cao_demo, this is the rule to start with:
cao_demo 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Immobilier, apply this rule, and every cao_demo call is checked against it from then on.
Questions about cao_demo
WHEN you are about to draw ANY French building for the first time, or when a user asks for a plan / DXF / IFC and you have not yet used these tools — call this FIRST. It hands back a COMPLETE, ALREADY-VERIFIED scene (zero audit alerts) plus the exact next calls in order. FREE, no API key, 0 units. WHY IT MATTERS: composing a scene from the schema alone takes several round-trips and usually fails on the same mistakes (openings.z used as an absolute altitude instead of a relative sill, a storey with no windows). Starting from a working scene and editing it is faster and cannot fail. GOOD CALL: cao_demo {} -> the house; cao_demo {"exemple": "appartement"} for a flat with no roof; cao_demo {"exemple": "extension"} for a veranda grafted onto an existing facade. Then feed scene straight into cao_verifier, then cao_pdf / cao_generer_dxf / cao_generer_ifc. DO NOT: do not invent a scene from scratch before trying this; do not call it to CHECK a scene you already have (that is cao_verifier); do not expect a drawing back — this returns JSON, the drawing comes from the next call. All dimensions are MILLIMETRES. It is categorised as a Write tool in the Immobilier MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
cao_demo accepts 1 parameter: exemple. The full parameter table on this page comes from the server's own tool schema.
Register the Immobilier MCP server in PolicyLayer and add a rule for cao_demo: 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 Immobilier. Nothing to install.
cao_demo 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 cao_demo 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.
Set action: deny in the PolicyLayer policy for cao_demo. 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.
cao_demo is provided by the Immobilier MCP server (https://synergieloc.fr/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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