Guru Chahal🇺🇸
@guruchahal
Founder➡️Investing @LightspeedVP. On team @AnthropicAI @ExaAILabs @cyera_io @chainguard_dev @nexthopai @evelegalai @Nominal_io @zscaler
Joined November 2008
1.4K Following 5.8K Followers
Software about to get a LOT better (tested)!
I used Opus 5.5 to formally verify the Claude Agent SDK using Lean. A couple short prompts = 16 PRs fixing various bugs and race conditions. Video attached.
TLA+ also works well. I sometimes combine Lean and TLA+ to look for issues around data flow, concurrency, and state mgmt.
I don't know either language well, but Claude is excellent at both. This approach is super useful for formally modeling your code and finding bugs that a human probably wouldn't have spotted.
Is formal verification the future of coding (or at least, bug finding)?
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