restore_session_context · Session Buddy MCP: Risk & Policy

WHAT IT DOES

What restore_session_context does on Session Buddy

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

WHY IT NEEDS A POLICY

Why restore_session_context needs a policy

Restoring a session context writes/overwrites the current active session state with previously saved data. This is a reversible write operation (the session can be saved again), but misuse could overwrite in-progress work or inject stale context into the active coding session, giving it medium severity.

From the tool's definition "Restore a previously saved session context" — restores/overwrites current session state with previously saved data

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

restore_session_context Rate-limited

restore_session_context 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "restore_session_context": {
      "limits": [
        {
          "counter": "restore_session_context_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Session Buddy, so you can run agents against it safely.

FAQ

Questions about restore_session_context

What does the restore_session_context tool do? +

Restore a previously saved session context. It is categorised as a Write tool in the Session Buddy MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on restore_session_context? +

Register the Session Buddy MCP server in PolicyLayer and add a rule for restore_session_context: 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 Session Buddy. Nothing to install.

What risk level is restore_session_context? +

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

Can I rate-limit restore_session_context? +

Yes. Add a rate_limit block to the restore_session_context 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 restore_session_context completely? +

Set action: deny in the PolicyLayer policy for restore_session_context. 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 restore_session_context? +

restore_session_context is provided by the Session Buddy MCP server (lesleslie/session-buddy). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.