Generate an image using Stability AI
AI agents use stability-ai-generate-image-ultra to create or update resources in Stability AI MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Stability AI MCP Server environment.
This tool creates new image content via the Stability AI API. It produces a new artifact (an image) but does not delete, overwrite, or execute code, nor does it involve financial transactions. It is a Write operation with medium severity since it consumes API credits and generates potentially sensitive or inappropriate content if misused, but has limited blast radius beyond that.
From the tool's definition Generate an image using Stability AI
Documented attack patterns abuse exactly the kind of access stability-ai-generate-image-ultra gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Stability AI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for stability-ai-generate-image-ultra:
{
"version": "1",
"default": "deny",
"tools": {
"stability-ai-generate-image-ultra": {
"limits": [
{
"counter": "stability-ai-generate-image-ultra_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}stability-ai-generate-image-ultra 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.
Generate an image using Stability AI. It is categorised as a Write tool in the Stability AI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Stability AI MCP Server MCP server in PolicyLayer and add a rule for stability-ai-generate-image-ultra: 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 Stability AI MCP Server. Nothing to install.
stability-ai-generate-image-ultra 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 stability-ai-generate-image-ultra 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 stability-ai-generate-image-ultra. 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.
stability-ai-generate-image-ultra is provided by the Stability AI MCP Server MCP server (tadasant/mcp-server-stability-ai). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 Stability AI MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
14 Stability AI MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.