Medium Risk

th0th_synapse_session

Create/resume a Synapse cognitive session. Returns sessionId to pass as sessionId on every th0th_search. Activates task alignment, agent affinity, working-memory buffer. Name by intent:

How to control th0th_synapse_session ↓

AI agents use th0th_synapse_session to create or update resources in Th0th — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Th0th environment.

Medium Risk

This tool performs a reversible write operation: it creates session state (or retrieves an existing session) that can be abandoned or replaced without permanent consequences. It does not retrieve external data (Read), execute arbitrary code (Execute), delete data (Destructive), or transfer funds (Financial).

From the tool's definition Tool creates or resumes a session ('Create/resume a Synapse cognitive session') and returns a sessionId. This is a session initialization/management operation that modifies state by establishing a new session object or resuming an existing one.

Risk signalsBulk/mass operation — affects multiple targets

Documented attack patterns abuse exactly the kind of access th0th_synapse_session gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and Th0th, and nothing reaches the server without passing your rules. This is the rule we recommend for th0th_synapse_session:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "th0th_synapse_session": {
      "limits": [
        {
          "counter": "th0th_synapse_session_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

th0th_synapse_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.

  1. Create a free account and register Th0th — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the th0th_synapse_session tool do? +

Create/resume a Synapse cognitive session. Returns sessionId to pass as sessionId on every th0th_search. Activates task alignment, agent affinity, working-memory buffer. Name by intent:. It is categorised as a Write tool in the Th0th MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on th0th_synapse_session? +

Register the Th0th MCP server in PolicyLayer and add a rule for th0th_synapse_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 Th0th. Nothing to install.

What risk level is th0th_synapse_session? +

th0th_synapse_session is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit th0th_synapse_session? +

Yes. Add a rate_limit block to the th0th_synapse_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.

How do I block th0th_synapse_session completely? +

Set action: deny in the PolicyLayer policy for th0th_synapse_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.

What MCP server provides th0th_synapse_session? +

th0th_synapse_session is provided by the Th0th MCP server (s1lv4/th0th). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Th0th tool call.

Deterministic rules across all 21 Th0th tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

21 Th0th tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// GET IN TOUCH

Have a question or want to learn more? Send us a message.

Message sent.

We'll get back to you soon.