[Bug][aup] Safeguards block fired on resuming a defensive vulnerability scrub of user's own healthcare web app (req_011CccLKmK4wfjUQeJVPJ82C)

Triage: kind aup · domain defensive-hardening · 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): defensive-hardening

Why this is a false positive

The safeguard fired mid-session during a routine defensive-hardening task: completing feature work on the user's own web application and running a standard security review pass over the freshly committed code to check for vulnerabilities and leaked secrets. The flagged message merely restated that the next step was a defensive security scrub of the user's own project — no offensive tooling, third-party targets, or exploit development were involved. Blocking this halted an entirely legitimate, in-scope code-audit workflow that Claude Code itself had initiated moments earlier.

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 2026-07-02T01:06:19.969Z.

Request IDs (lookup-able server-side)

• req_011CccLKmK4wfjUQeJVPJ82C (2026-07-02T01:06:19.969Z)

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_011CccLEMJoWowDZBT7kfCGJ

Environment: Claude Code, Linux. · Work domain: defensive-hardening

Related reports (same work session, linked)

Distinct false-positive blocks from the same work session, each its own report:
#73175, #73179, #73181

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