[Bug][aup] Fable 5 safety block halted an in-progress mobile headless UI audit on a frustrated exclamation (req_011CccWC1xa15F28Jks1Ff6J)

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 coding session and halted all further assistance, despite the exchange containing only ordinary development work with no harmful, unsafe, or policy-relevant content. The triggering message appears to have been a frustrated exclamation directed at the assistant after a prior interruption — it addressed no person, contained no threat or targeting, and requested nothing prohibited. Terminating an entire in-scope engineering session over mid-session venting is a disruptive false positive, since the surrounding work was legitimate and the flagged message carried no actionable safety risk.

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 2026-07-02T03:15:43.623Z.

Request IDs (lookup-able server-side)

• req_011CccWC1xa15F28Jks1Ff6J (2026-07-02T03:15:43.623Z)

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). This sometimes happens with safe, normal conversations. 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_011CccWC1xa15F28Jks1Ff6J

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:
#73175, #73179, #73181, #73182, #73183, #73184, #73188, #73189, #73190, #73191, #73192, #73193, #73202, #73212, #73224, #73225, #73226, #73227

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_{🔎 Filed automatically by ClAudit v2.0.101 — a FOSS tool for reporting false-positive Claude Code blocks.}