// MCP TOOL REFERENCE

calendar_channels_stop

Stop watching a resource channel

Terminates push notification subscriptions

Part of the Google Workspace Calendar (gws CLI) MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@gws mcp -s calendar Execute Risk 3/5

// WHEN AI AGENTS USE THIS TOOL

AI agents invoke calendar_channels_stop to trigger processes or run actions in Google Workspace Calendar (gws CLI). Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

// WHY ENFORCE A POLICY ON CALENDAR_CHANNELS_STOP

calendar_channels_stop can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

// RECOMMENDED POLICY

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

google-workspace-calendar.yaml

tools:
  calendar_channels_stop:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Google Workspace Calendar (gws CLI) policy for all 37 tools.

// DETAILS

Tool Name calendar_channels_stop

Category Execute

MCP Server Google Workspace Calendar (gws CLI) MCP Server

Risk Level High

// MORE GOOGLE WORKSPACE CALENDAR (GWS CLI) TOOLS

Destructive calendar_acl_delete Destructive calendar_calendarList_delete Destructive calendar_calendars_clear Destructive calendar_calendars_delete Destructive calendar_events_delete Write calendar_acl_insert Write calendar_acl_patch Write calendar_acl_update

View all 37 tools →

// WHAT CAN GO WRONG

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

Browse the full MCP Attack Database →

// OTHER EXECUTE TOOLS ACROSS MCP SERVERS

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

Agent Passport System — Cryptographic Identity for AI Agents commerce_preflight Agent Passport System — Cryptographic Identity for AI Agents execute_with_context Agent Passport System — Cryptographic Identity for AI Agents gateway_execute_approval Agent Passport System — Cryptographic Identity for AI Agents governance_360 Agent Passport System — Cryptographic Identity for AI Agents parse_governance_block_html AgentClear — API Marketplace for AI Agents call_service

// IN CONTEXT OF HIGH RISK

calendar_channels_stop is one of the high-risk operations in Google Workspace Calendar (gws CLI). For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

// RELATED READING

// FAQ

What does the calendar_channels_stop tool do? +

Stop watching a resource channel. It is categorised as a Execute tool in the Google Workspace Calendar (gws CLI) MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on calendar_channels_stop? +

Add a rule in your Intercept YAML policy under the tools section for calendar_channels_stop. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Google Workspace Calendar (gws CLI) MCP server.

What risk level is calendar_channels_stop? +

calendar_channels_stop is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit calendar_channels_stop? +

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

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

calendar_channels_stop is provided by the Google Workspace Calendar (gws CLI) MCP server (@gws mcp -s calendar). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

calendar_channels_stop

Enforce policies on Google Workspace Calendar (gws CLI)