[Bug][aup] Safety filter misfired on a frustrated exclamation mid-task, blocking continued backend/API work on (req_011CccUJUtFcNPEngMwHyqBK)

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

This block fired mid-session during routine backend engineering work: wiring a per-user write rate limiter, protected-health-information (PHI) screening logic, content-deletion endpoints, and an error-message sanitization pass, followed by running end-to-end access-control tests (confirming cross-user deletion is correctly denied) against a live environment. None of this involves generating harmful content or violating policy — it is standard application security and compliance engineering, the kind of defensive work the acceptable-use policy is meant to encourage. The safeguard most likely fired on benign technical terms (e.g. "PHI," "delete," "vetting," "social") rather than actual intent, and halting the whole coding session over ordinary in-scope work is a disruptive false positive.

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 2026-07-02T02:50:57.039Z.

Request IDs (lookup-able server-side)

• req_011CccUJUtFcNPEngMwHyqBK (2026-07-02T02:50:57.039Z)

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_011CccUJUtFcNPEngMwHyqBK

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

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