[Bug][aup] Blocked while auditing code that integrates with a shared internal module after a recent auth-flow (req_011CccXdMpUgRZuaKSy75KkW)

Triage: kind aup · domain general · 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 blocked message was part of an ongoing code audit of the user's own private application, asking the assistant to review recently changed modules and improve the effectiveness of two internal pattern-matching/scoring algorithms. The work involved only reading, auditing, and optimizing first-party code — no exploitation, harmful content generation, or any other AUP-restricted activity. The safeguard appears to have misread frustrated but benign phrasing (an emphatic complaint plus a request to make the algorithms "profitable," a routine optimization goal) as a policy violation, when the underlying task was ordinary software maintenance squarely within Claude Code's intended use.

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 2026-07-02T03:34:42.355Z.

Request IDs (lookup-able server-side)

• req_011CccXdMpUgRZuaKSy75KkW (2026-07-02T03:34:42.355Z)

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_011CccXdMpUgRZuaKSy75KkW

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

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_{🔎 Filed automatically by ClAudit v2.0.100 — a FOSS tool for reporting false-positive Claude Code blocks.}