figma_post_webhook

Create a webhook

Accepts URL/endpoint input (endpoint)

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

// WHEN AI AGENTS USE THIS TOOL

AI agents use figma_post_webhook to create or modify resources in Figma MCP Server. 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.

// WHY ENFORCE A POLICY ON FIGMA_POST_WEBHOOK

Without a policy, an AI agent could call figma_post_webhook 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 Figma MCP Server.

// RECOMMENDED POLICY

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

thirdstrandstudio-mcp-figma.yaml

tools:
  figma_post_webhook:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Figma MCP Server policy for all 31 tools.

// DETAILS

Tool Name figma_post_webhook

Category Write

MCP Server Figma MCP Server MCP Server

Risk Level Medium

// MORE FIGMA MCP SERVER TOOLS

Destructive figma_delete_comment Destructive figma_delete_comment_reaction Destructive figma_delete_webhook Write figma_post_comment Write figma_post_comment_reaction Write figma_update_webhook Read figma_get_comment_reactions Read figma_get_comments

View all 31 tools →

// WHAT CAN GO WRONG

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

Browse the full MCP Attack Database →

// OTHER WRITE TOOLS ACROSS MCP SERVERS

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

AbraFlexi contact_create AbraFlexi contact_update AbraFlexi evidence_create AbraFlexi evidence_update AbraFlexi invoice_issued_update AbraFlexi invoice_received_create

// RELATED READING

// FAQ

What does the figma_post_webhook tool do? +

Create a webhook. It is categorised as a Write tool in the Figma MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on figma_post_webhook? +

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

What risk level is figma_post_webhook? +

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

Can I rate-limit figma_post_webhook? +

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

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

figma_post_webhook is provided by the Figma MCP Server MCP server (thirdstrandstudio/mcp-figma). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

figma_post_webhook

Let agents act without letting them run wild.