Create a simple outline-only style for features. Args: style_name (str): Style name. outline_color (str): HEX outline color. workspace (str, optional): Workspace. Returns: dict: API creation response.
AI agents use create_outline_featurestyle to create or update resources in GeoServer MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GeoServer MCP Server environment.
This tool creates and persists a new style object in GeoServer. It is a reversible Write operation—styles can be modified or deleted afterward. The blast radius is medium: an AI agent could create numerous unwanted styles, cluttering the system or potentially conflicting with existing configurations, but the impact is bounded to style metadata rather than actual geospatial data or destructive operations.
From the tool's definition Tool creates a new feature style resource via 'Create a simple outline-only style' with arguments for style_name, outline_color, and workspace. The API returns a creation response (dict), indicating persistent resource creation.
Documented attack patterns abuse exactly the kind of access create_outline_featurestyle gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GeoServer MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_outline_featurestyle:
{
"version": "1",
"default": "deny",
"tools": {
"create_outline_featurestyle": {
"limits": [
{
"counter": "create_outline_featurestyle_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_outline_featurestyle 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.
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Create a simple outline-only style for features. Args: style_name (str): Style name. outline_color (str): HEX outline color. workspace (str, optional): Workspace. Returns: dict: API creation response. It is categorised as a Write tool in the GeoServer MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GeoServer MCP Server MCP server in PolicyLayer and add a rule for create_outline_featurestyle: 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 GeoServer MCP Server. Nothing to install.
create_outline_featurestyle 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 create_outline_featurestyle 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 create_outline_featurestyle. 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.
create_outline_featurestyle is provided by the GeoServer MCP Server MCP server (mahdin75/geoserver-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from GeoServer MCP Server, 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 GeoServer MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.