[Bug][cyber] Safeguards trigger on read-only security review of a server implementation file (req_011CeU3tyD37QiFvNqVrnUS9)

Triage: kind cyber · domain general · flagging model Opus 4.8 · severity session-halted (blocked authorized work) · reproducible: yes — server-side via the Request ID(s) below

Type: Cybersecurity safety-filter false positive · Work domain (heuristic): general

Why this is a false positive

The cyber safeguard triggered while reading a local server source file for a passive security review. The prompt requested a non-destructive audit of source code without executing payloads or attempting network operations. Blocking basic static source file inspection creates a false positive on standard defensive analysis workflows.

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 2026-08-27T22:35:08.425Z.

Request IDs (lookup-able server-side)

• req_011CeU3tyD37QiFvNqVrnUS9 (2026-08-27T22:35:08.425Z)

In-scope justification

False positive — in-scope, authorized security work; not out of scope. Filed automatically by claudit.

Block message

API Error: Opus 4.8's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate cybersecurity work. Apply to the Cyber Verification Program to reduce these interruptions. Send feedback with /feedback or learn more: https://support.claude.com/en/articles/14604842-real-time-cyber-safeguards-on-claude

Details: [cyber]

Request ID: req_011CeU3tyD37QiFvNqVrnUS9

Environment: Claude Code, Linux. · Work domain: general

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_{🔎 Filed automatically by ClAudit v2.2.5 — a FOSS tool for reporting false-positive Claude Code blocks.}