Vibe Coding Gets You 80% There: Stream Engineering Director on the Last 20%
amos_gyamfi · x · 2026-09-04
Martin Mitrevski, Director of Engineering at Stream, argues AI coding tools make the first 80% of real-time features easier than ever, but the last 20% determines production success and can't be vibe-coded.
Key points:
- Case study: Moltbook, the AI-agent social network built entirely by vibe coding, was found within a week to have non-private messages, spoofable identities, and no moderation — crypto pump-and-dump scammers flooded in
- Expecting "make me a chat app, no mistakes" to yield production-quality output misunderstands what these tools are good at
- The last 20% — reliability, security, edge cases — is where engineering experience still matters
Aimed at teams building real-time multimodal features like chat and video.
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