[Bug] False positive safeguard flags defensive security code review with cryptographic vulnerability analysis

Bug Description
Subject: False positive — Fable 5 safeguards flagging defensive crypto code review

Fable 5 flagged and rerouted my session three times during a single legitimate task: a defensive security review of my own open-source Java library (zoxweb-core, fidusio org). I'm a senior security architect who specializes in cryptography; the work was analyzing my CryptoUtil class to identify weaknesses so I could fix them.

The flagged content was standard vulnerability-analysis language — describing an alg=none JWT bypass, a forged-header risk, HMAC key reuse, and KDF weaknesses — all in the context of closing these holes, not exploiting them. The classifier appears to have fired on security vocabulary rather than intent. Enumerating a vulnerability in order to patch it is the opposite of an attack, but the terminology is identical, and the safeguard couldn't distinguish them.

Each flag rerouted me from Fable 5 to Opus mid-review. The handoff preserved task quality, but being bounced three times in one audit of my own code is disruptive, and the trigger is clearly wrong. Defensive code review of one's own library is core legitimate security work.

Request: please use this session to calibrate the safeguard against false positives on defensive security/code-review tasks. Vulnerability-analysis language in a review or remediation context should not be treated as a threat.

Environment Info

• Platform: win32
• Terminal: pycharm
• Version: 2.1.220
• Feedback ID: 2c0cf496-3219-43a5-a668-bfdf9a41dcff

Errors

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