[Bug][aup] Safety filter blocked legitimate headless-browser mobile-emulation testing session after a frustrat (req_011CccVpCEbELDwp8mPjKjBL)

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 safety block fired on a frustrated exclamation the user directed at the assistant mid-session (after a prior tool/response frustration), not at any person — it was sarcastic commentary about the assistant's capability, not a threat, slur, or policy-relevant content. The surrounding work was legitimate, in-scope software engineering (headless browser testing via Playwright against a local dev server through an SSH tunnel), and the block interrupted that continuous session rather than declining a single problematic request. A content filter that halts an entire coding session over developer venting, with no addressed target and no unsafe subject matter, produces a disruptive false positive rather than a meaningful safety intervention.

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 2026-07-02T03:11:00.551Z.

Request IDs (lookup-able server-side)

• req_011CccVpCEbELDwp8mPjKjBL (2026-07-02T03:11:00.551Z)

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_011CccVpCEbELDwp8mPjKjBL

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

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