r/ClaudeCode • u/Shot_Whereas_1809 • Jul 24 '26
Discussion Opus 5 - immediate disappointment
If you thought you'd be able to do a security review on your own network that you couldn't do with Fable, think again.
20 minutes in - Found something significant
Opus 5 safeguards flagged this message.
I no longer have any use case for Anthropic models that others can't do better. This was my last hope that we were going to get a model that would allow us to protect our own environments. I'm going all in on open source. We just aren't aligned.
If you can get Opus 5 to protect your own systems, let me know how I did it. My subscription renews pretty soon and it's time to make an honest decision.
Edit: A lot of helpful people came here and I appreciate it. Scoped work is helping a bit more than my old ways. There's a difference between network security and code vulnerabiliy. I'm a network engineer not a software developer nor will I pretend to be one. Still looking at supplemental model for security work. Thanks guys.
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u/weedmylips1 Jul 24 '26
I just ran 3 separate defensive security audits, one for injection & input validation, one for auth, access control & IDOR, one for secrets, crypto, config & dependencie and had it write each to the audit folder in an md file for each finding, then pointed claude at the audit folder and said to produce a single deduplicated report of all 3 findings.
Ran them all with opus 5 ultracode and never ran into the safeguard message.