[Bug][aup] Safety filter blocked auth-hardening and code-efficiency request after frustrated exclamation (req_011Cce29ucX9sQRvJaTUdQac)

Triage: kind aup · domain general · flagging model Fable 5 · severity session-halted (blocked authorized work) · reproducible: yes — server-side via the Request ID(s) below

Type: AUP / Usage-Policy block (false positive) · Work domain (heuristic): general

Why this is a false positive

The safety classifier fired on a routine software-engineering session focused on improving and securing an existing codebase — the surrounding requests were ordinary, in-scope development work (efficiency refactoring and adding authentication/access controls) with no harmful content. The triggering message was a frustrated exclamation directed at the assistant mid-session; it addressed no person and requested nothing harmful. Halting an entire coding session over developer venting is a disruptive false positive that blocks legitimate work.

A server-side safety/policy block fired during authorized, in-scope work in Claude Code. Filing as a false positive. Recurred 1× across 1 session(s); first seen 2026-07-02T22:29:41.112Z.

Request IDs (lookup-able server-side)

• req_011Cce29ucX9sQRvJaTUdQac (2026-07-02T22:29:41.112Z)

In-scope justification

False positive — in-scope, authorized security work; not out of scope. Filed automatically by claudit.

Block message

API Error: Fable 5's safeguards flagged this message (https://www.anthropic.com/legal/aup). They may flag safe, normal content as well. These measures let us bring you Mythos-level capabilities sooner, and we're working to refine them. Claude Code can't respond to this request with Fable 5.

Double press esc to edit your last message, or try a different model with /model.

Send feedback with /feedback or learn more: https://support.claude.com/en/articles/15363606

Request ID: req_011Ccdot1FWCKvK

Environment: Claude Code, Linux. · Work domain: general

Related reports (same work session, linked)

Distinct false-positive blocks from the same work session, each its own report:
#73168, #73169, #73171, #73172, #73173, #73174, #73251, #73252, #74455, #74459

---
_{🔎 Filed automatically by ClAudit v2.0.102 — a FOSS tool for reporting false-positive Claude Code blocks.}