Medium Risk

flowforge_send_event

Send an event into FlowForge. Any function with trigger_type='event' and a matching trigger_value will fan out into a new run. Returns the event id and any runs created. Use flowforge_list_runs shortly after to monitor execution. Passing an explicit id makes the send idempotent — repeats return t...

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

flowforge-mcp-server Write Risk 2/5

AI agents use flowforge_send_event to create or modify resources in Flowforge. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call flowforge_send_event repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Flowforge.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

flowforge.yaml
tools:
  flowforge_send_event:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Flowforge policy for all 49 tools.

Tool Name flowforge_send_event
Category Write
Risk Level Medium

View all 49 tools →

Agents calling write-class tools like flowforge_send_event 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 Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

What does the flowforge_send_event tool do? +

Send an event into FlowForge. Any function with trigger_type='event' and a matching trigger_value will fan out into a new run. Returns the event id and any runs created. Use flowforge_list_runs shortly after to monitor execution. Passing an explicit id makes the send idempotent — repeats return the original event.. It is categorised as a Write tool in the Flowforge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on flowforge_send_event? +

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

What risk level is flowforge_send_event? +

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

Can I rate-limit flowforge_send_event? +

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

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

flowforge_send_event is provided by the Flowforge MCP server (flowforge-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Flowforge

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
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