29 tools. 14 can modify or destroy data without limits.
3 destructive tools with no built-in limits. Policy required.
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Destructive tools (kit_delete_broadcast, kit_delete_tag, kit_delete_webhook) permanently delete resources. There is no undo. An agent calling these in a retry loop causes irreversible damage.
Write operations (kit_add_subscriber_to_form, kit_add_subscriber_to_sequence, kit_add_tag_to_subscriber) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.
Intercept sits between your agent and Kit. Every tool call checked against your policy before it executes — so your agent can do its job without breaking things.
npx -y @policylayer/intercept scan -- npx -y @kit-mcp-server kit_delete_broadcast:
rules:
- action: deny Destructive tools should never be available to autonomous agents without human approval.
kit_add_subscriber_to_form:
rules:
- rate_limit: 30/hour Prevents bulk unintended modifications from agents caught in loops.
kit_get_account:
rules:
- rate_limit: 60/minute Controls API costs and prevents retry loops from exhausting upstream rate limits.
Yes. The Kit server exposes 3 destructive tools including kit_delete_broadcast, kit_delete_tag, kit_delete_webhook. These permanently remove resources with no undo. Intercept blocks destructive tools by default so they never reach the upstream server.
The Kit server has 11 write tools including kit_add_subscriber_to_form, kit_add_subscriber_to_sequence, kit_add_tag_to_subscriber. Set rate limits in your policy file -- for example, rate_limit: 10/hour prevents an agent from making more than 10 modifications per hour. Intercept enforces this at the transport layer.
29 tools across 3 categories: Destructive, Read, Write. 15 are read-only. 14 can modify, create, or delete data.
One line change. Instead of running the Kit server directly, prefix it with Intercept: intercept -c io-github-aplaceforallmystuff-mcp-kit.yaml -- npx -y @kit-mcp-server. Download a pre-built policy from policylayer.com/policies/io-github-aplaceforallmystuff-mcp-kit and adjust the limits to match your use case.
Starter policies available for each. Same risk classification, same one-command setup.
Set budgets, approvals, and hard limits across MCP servers.
npx -y @policylayer/intercept init