Alex Sidorenko

Alex Sidorenko

@alexsidorenko.com

I make videos for devs. Human-authored articles about real agentic coding for experienced devs https://offautopilot.substack.com/about

1.1K followers 30 following46 posts

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Don't be a meat proxy

@alexsidorenko.com

Switching the model or reasoning mid-session can be expensive

@alexsidorenko.com

Especially if you already have a lot of context in the session. Switching the model/thinking level results in the KV cache miss, making the model recompute all previous tokens On the API it costs more money, on a sub it drains your usage limits faster earendil.com/posts/prompt...

earendil.comPrompt Caching In Agents | EARENDILHow prompt caching shapes the cost, latency, tools, and architecture of coding agents, and what Pi does to keep cache behavior visible.

@alexsidorenko.com

@alexsidorenko.com

Making a Pi extension that shows a live SVG preview directly in the terminal

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How to prevent Codex from reading sensitive files

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How to run local models for coding on Mac (LM studio + Pi)

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Skill atrophy with coding agents

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Relevant paper from Anthropic: How AI Impacts Skill Formation (Feb 3, 2026) arxiv.org/pdf/2601.20245

arxiv.orgarxiv.org

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Why red/green tdd is good for agentic coding

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Still no 60fps vids on Bluesky 😭

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React started componentization of web dev React Server Components continues it

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"Vercel AI SDK - how do I get ai to interpret the tools response?" 👇

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Anyone lives in Ericeira, Portugal? How do you like it?

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Caching Prisma queries with dynamicIO in Next.js

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Composable caching in Next.js with dynamicIO

dan@danabra.mov

it’s composable caching 😭

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30 fps 😢

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