Low Risk

list_sessions

List all active sessions with stats (age, message count, last activity). Use to continue the most relevant session instead of starting from scratch.

Part of the Notebooklm MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call list_sessions to retrieve information from Notebooklm without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though list_sessions only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

io-github-pantheon-security-notebooklm-mcp-secure.yaml
tools:
  list_sessions:
    rules:
      - action: allow

See the full Notebooklm policy for all 31 tools.

Tool Name list_sessions
Category Read
Risk Level Low

View all 31 tools →

Agents calling read-class tools like list_sessions have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the list_sessions tool do? +

List all active sessions with stats (age, message count, last activity). Use to continue the most relevant session instead of starting from scratch.. It is categorised as a Read tool in the Notebooklm MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_sessions? +

Add a rule in your Intercept YAML policy under the tools section for list_sessions. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Notebooklm MCP server.

What risk level is list_sessions? +

list_sessions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_sessions? +

Yes. Add a rate_limit block to the list_sessions rule in your Intercept 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 list_sessions completely? +

Set action: deny in the Intercept policy for list_sessions. 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 list_sessions? +

list_sessions is provided by the Notebooklm MCP server (@pan-sec/notebooklm-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Notebooklm

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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