Reads DESIGN.md to detect infrastructure needs and generates Terraform or Bicep files. Returns generated file contents, variables, and a Mermaid diagram of the infrastructure topology.
AI agents use sdd_generate_iac to create or update resources in Specky — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Specky environment.
This tool generates Infrastructure-as-Code (IaC) files that define cloud infrastructure. While the tool itself only produces file outputs (Write category), IaC files are executable artifacts that can provision or modify cloud resources. Classified as Write rather than Execute because the tool generates/creates the IaC definitions themselves without directly applying them.
From the tool's definition Generates Terraform or Bicep files (Infrastructure-as-Code files that create/modify cloud infrastructure when applied). The tool produces file contents that represent infrastructure definitions which, when deployed, will create or modify cloud resources.
Documented attack patterns abuse exactly the kind of access sdd_generate_iac gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Specky, and nothing reaches the server without passing your rules. This is the rule we recommend for sdd_generate_iac:
{
"version": "1",
"default": "deny",
"tools": {
"sdd_generate_iac": {
"limits": [
{
"counter": "sdd_generate_iac_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}sdd_generate_iac 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.
Free to start. No card required.
Reads DESIGN.md to detect infrastructure needs and generates Terraform or Bicep files. Returns generated file contents, variables, and a Mermaid diagram of the infrastructure topology. It is categorised as a Write tool in the Specky MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Specky MCP server in PolicyLayer and add a rule for sdd_generate_iac: 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 Specky. Nothing to install.
sdd_generate_iac 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 sdd_generate_iac 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 sdd_generate_iac. 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.
sdd_generate_iac is provided by the Specky MCP server (paulasilvatech/specky). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Specky, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
56 Specky tools catalogued and risk-classified — across an index of 43,000+ MCP servers.