Medium Risk

export_mermaid

Export architecture as Mermaid

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

tesseract-mcp Write Risk 2/5

AI agents use export_mermaid to create or modify resources in Tesseract. 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 export_mermaid 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 Tesseract.

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

tesseract.yaml
tools:
  export_mermaid:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Tesseract policy for all 46 tools.

Tool Name export_mermaid
Category Write
Risk Level Medium

View all 46 tools →

Agents calling write-class tools like export_mermaid 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 export_mermaid tool do? +

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

How do I enforce a policy on export_mermaid? +

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

What risk level is export_mermaid? +

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

Can I rate-limit export_mermaid? +

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

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

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

Enforce policies on Tesseract

Open source. One binary. Zero dependencies.

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

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