---
id: "4c833d6e-2710-4ebe-991e-d2c67dd28b49"
name: "SBFM Skip Rule"
micro_summary: "Discarded targeted Skip approach: it matched the test request but Free Bot Fight Mode still challenged ChatGPT."
status: "discarded"
see_also: []
scope: "Test whether a Cloudflare custom Skip rule targeting the Super Bot Fight Mode ruleset bypasses Free-plan Bot Fight Mode for SiftText MCP POST endpoints."
discard_reason: "The Cloudflare custom Skip rule matched a malformed verification request but did not bypass Free-plan Bot Fight Mode; ChatGPT's subsequent DCR request still received a managed challenge and 403."
---
## Probe result

A Cloudflare custom Skip rule named `Allow ChatGPT MCP DCR endpoints` matched POST requests to `/oauth/register`, `/oauth/token`, and `/mcp`, with **All Super Bot Fight Mode Rules** selected. A malformed verification POST matched the rule and reached the SiftText origin with HTTP 400, but the subsequent ChatGPT POST still received `managed_challenge` from the separate Free-plan `bot_fight_mode` engine.

The approach was discarded because the SBFM skip target does not bypass Free Bot Fight Mode.