create_excel_from_json

从 JSON 数据创建 Excel 文件

SERVERExcel MCP Server with Supabase Storage SOURCE1126misakp/excel-mcp-server-with-supabase-storage

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/1126misakp-excel-mcp-server-with-supabase-storage/create-excel-from-json.md

WHAT IT DOES

What create_excel_from_json does on Excel MCP Server with Supabase Storage

AI agents use create_excel_from_json to create or update resources in Excel MCP Server with Supabase Storage, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Excel MCP Server with Supabase Storage environment.

RISK

Why create_excel_from_json is rated Medium

This tool creates new Excel files from JSON input, which is a reversible write operation. It does not execute arbitrary code, delete data, or move money. The severity is medium because misconfigured or adversarial JSON could potentially generate large files or be used to create misleading spreadsheets, but the operation itself is reversible and bounded by file creation semantics.

From the tool's definition Tool name 'create_excel_from_json' and description '从 JSON 数据创建 Excel 文件' (Create Excel file from JSON data) indicates file creation/generation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_excel_from_json safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Excel MCP Server with Supabase Storage, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_excel_from_json, this is the rule to start with:

create_excel_from_json Rate-limited

create_excel_from_json stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_excel_from_json": {
      "limits": [
        {
          "counter": "create_excel_from_json_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Excel MCP Server with Supabase Storage, apply this rule, and every create_excel_from_json call is checked against it from then on.

FAQ

Questions about create_excel_from_json

What does the create_excel_from_json tool do? +

从 JSON 数据创建 Excel 文件. It is categorised as a Write tool in the Excel MCP Server with Supabase Storage MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_excel_from_json? +

Register the Excel MCP Server with Supabase Storage MCP server in PolicyLayer and add a rule for create_excel_from_json: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Excel MCP Server with Supabase Storage. Nothing to install.

What risk level is create_excel_from_json? +

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

Can I rate-limit create_excel_from_json? +

Yes. Add a rate_limit block to the create_excel_from_json rule in your PolicyLayer 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 create_excel_from_json completely? +

Set action: deny in the PolicyLayer policy for create_excel_from_json. 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 create_excel_from_json? +

create_excel_from_json is provided by the Excel MCP Server with Supabase Storage MCP server (1126misakp/excel-mcp-server-with-supabase-storage). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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