AI agents use plan_feature to create or update resources in Task Manager MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Task Manager MCP Server environment.
The tool likely creates or modifies planning data (reversible), fitting Write category. Severity is medium because misuse could create incorrect task plans affecting an AI agent's work direction, but changes are typically reversible via adjust_plan. Confidence is moderate (0.7) because the description is empty; the category is inferred from tool name and server context rather than explicit documentation.
From the tool's definition Tool name 'plan_feature' suggests creating or modifying task plans. Context indicates this MCP server manages 'task planning and implementation tracking' with sibling tools like 'adjust_plan', 'mark_task_complete', suggesting plan_feature creates new plans or…
Documented attack patterns abuse exactly the kind of access plan_feature gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Task Manager MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for plan_feature:
{
"version": "1",
"default": "deny",
"tools": {
"plan_feature": {
"limits": [
{
"counter": "plan_feature_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}plan_feature 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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plan_feature. It is categorised as a Write tool in the Task Manager MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Task Manager MCP Server MCP server in PolicyLayer and add a rule for plan_feature: 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 Task Manager MCP Server. Nothing to install.
plan_feature 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 plan_feature 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 plan_feature. 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.
plan_feature is provided by the Task Manager MCP Server MCP server (jhawkins11/task-manager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Task Manager MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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5 Task Manager MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.