delete_readwise_tag

THE RISK

Critical Risk

Why delete_readwise_tag needs a policy

This tool permanently deletes tag associations from Readwise documents. While not as severe as deleting entire documents or highlights, tag deletion is irreversible and removes user-applied metadata. The action cannot be undone programmatically and represents data loss.

From the tool's definition Tool name is 'delete_readwise_tag' and description states 'Remove a tag from a Readwise highlight or book.' The verb 'delete' and 'remove' indicate irreversible deletion of tag metadata.

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

POLICY

How to control delete_readwise_tag

PolicyLayer is an MCP gateway — it sits between your AI agents and Kiseki-Labs-Readwise-MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_readwise_tag:

policy.json

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

delete_readwise_tag 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 Kiseki-Labs-Readwise-MCP — 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 Kiseki-Labs-Readwise-MCP tools

Write add_readwise_tag add_readwise_tag Write update_readwise_tag update_readwise_tag Read find_readwise_documents_by_names find_readwise_documents_by_names Read get_readwise_highlights_by_document_ids get_readwise_highlights_by_document_ids Read get_readwise_highlights_by_filters get_readwise_highlights_by_filters Read get_readwise_tags get_readwise_tags Read list_readwise_documents_by_filters list_readwise_documents_by_filters

All 8 Kiseki-Labs-Readwise-MCP 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 Kiseki-Labs-Readwise-MCP → 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_readwise_tag

What does the delete_readwise_tag tool do? +

Remove a tag from a Readwise highlight or book. It is categorised as a Destructive tool in the Kiseki-Labs-Readwise-MCP 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_readwise_tag? +

Register the Kiseki-Labs-Readwise- MCP server in PolicyLayer and add a rule for delete_readwise_tag: 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 Kiseki-Labs-Readwise-MCP. Nothing to install.

What risk level is delete_readwise_tag? +

delete_readwise_tag 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_readwise_tag? +

Yes. Add a rate_limit block to the delete_readwise_tag 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_readwise_tag completely? +

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

delete_readwise_tag is provided by the Kiseki-Labs-Readwise- MCP server (kiseki-technologies/kiseki-labs-readwise-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Kiseki-Labs-Readwise-MCP tool call.

Start from Kiseki-Labs-Readwise-MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →