// MCP TOOL REFERENCE

delete_draft

ServerSubstack Mcp Plus
CategoryDestructive

WHAT IT DOES

What delete_draft does on Substack Mcp Plus

AI agents call delete_draft to permanently remove resources in Substack Mcp Plus — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

THE RISK

Critical Risk

Why delete_draft needs a policy

This tool permanently deletes draft posts with no undo capability. While the blast radius is somewhat limited to draft content (not published posts), deletion is irreversible and represents clear data destruction. The tool's own documentation emphasizes the permanence ('permanent action'), confirming the Destructive category.

From the tool's definition Tool name is 'delete_draft' and description states 'Delete a draft post' and 'this permanent action', indicating irreversible deletion of data.

Documented attack patterns abuse exactly the kind of access delete_draft gives an agent:

POLICY

How to control delete_draft

PolicyLayer is an MCP gateway — it sits between your AI agents and Substack Mcp Plus, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_draft:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_draft"
  ]
}

delete_draft disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Substack Mcp Plus — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Substack Mcp Plus tools

Execute publish_post Publish a draft post immediately to your Substack publication. This makes the post publicl Write create_formatted_post Create a new formatted draft post on Substack. Supports full markdown formatting. IMPORTAN Write duplicate_post Create a copy of an existing post as a new draft. Perfect for using posts as templates. IM Write update_post Update an existing Substack draft post. WARNING: This tool COMPLETELY REPLACES the specifi Write upload_image Upload an image file from your local computer to Substack Read get_post_content Read the full content of a specific post (draft or published) with all its formatting. Ret Read get_sections Get a list of available sections/categories in your Substack publication. Sections help or Read get_subscriber_count Get the total number of subscribers to your Substack publication. Useful for tracking grow

All 12 Substack Mcp Plus tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in Substack Mcp Plus → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_draft

What does the delete_draft tool do? +

Delete a draft post. IMPORTANT: You MUST ALWAYS ask the user to confirm deletion in a follow-up message BEFORE calling this tool with confirm_delete=true. Never set confirm_delete=true on the first request, even if the user explicitly asks to delete. This ensures users have time to reconsider this permanent action. It is categorised as a Destructive tool in the Substack Mcp Plus MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_draft? +

Register the Substack Mcp Plus MCP server in PolicyLayer and add a rule for delete_draft: 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 Substack Mcp Plus. Nothing to install.

What risk level is delete_draft? +

delete_draft is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_draft? +

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

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

delete_draft is provided by the Substack Mcp Plus MCP server (ty13r/substack-mcp-plus). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Substack Mcp Plus tool call.

Start from Substack Mcp Plus, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

Free to start. No card required.

12 Substack Mcp Plus tools catalogued and risk-classified — across an index of 43,000+ MCP servers.