Create a new development session for a project (or reuse existing active session)
AI agents use create_session to create or update resources in DevMind MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your DevMind MCP environment.
The tool creates session metadata/state within the memory system, which is a Write operation (data creation). It is not destructive because sessions can be deleted or superseded. It carries low severity because creating a session is a benign administrative action with minimal blast radius — the worst outcome is unnecessary session records that can be cleaned up, with no impact on core data or external systems.
From the tool's definition Tool description states 'Create a new development session for a project (or reuse existing active session)' — this creates or initializes a new session record, which is a reversible data modification operation.
Documented attack patterns abuse exactly the kind of access create_session gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and DevMind MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for create_session:
{
"version": "1",
"default": "deny",
"tools": {
"create_session": {
"limits": [
{
"counter": "create_session_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_session 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 new development session for a project (or reuse existing active session). It is categorised as a Write tool in the DevMind MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the DevMind MCP server in PolicyLayer and add a rule for create_session: 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 DevMind MCP. Nothing to install.
create_session 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_session 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_session. 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_session is provided by the DevMind MCP server (jochenyang/devmind-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from DevMind MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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13 DevMind MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.