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ESC

Writing on AI-assisted software development

31 posts

Practical guides, security notes, and honest takes. Newest first.

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8 min

Cerebras CS-4 Is Fast. Its 30x Uses a Mid-Pack GPU Baseline

Cerebras's CS-4 puts three WSE-3 wafers, clocked twice as fast, in one rack. I measured its 30x claim: the GPU behind it does about 180 tokens a second.

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12 min

Pi Durable: An Agent Harness That Survives Its Own Crashes

Pi Durable is Earendil's experimental TypeScript harness for agents that survive crashes, fork, compact in the background and take new code while running.

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10 min

Claude Code Mods: Five Tips From the Mods People Built

Claude Code mods are TypeScript hooks that redraw the UI, hold tool calls and add panes. Five tips, with real mods, for writing and installing them.

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10 min

Cloudflare's cf CLI: The Whole API, and a Clock on Wrangler

Cloudflare's new cf CLI covers about 3,000 API operations and is built for agents. I ran cf migrate on this blog; here's what it means for Wrangler.

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10 min

WebMCP Hands-On: A Search Tool for Browser Agents

I gave this blog a WebMCP search tool to see what Chrome's agent API takes in practice: the code, the Chrome 153 quirks, who calls it, and why WebKit says no.

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12 min

Orca: The Open-Source ADE for Running Coding Agents in Parallel

Orca runs Claude Code, Codex and 40 other CLI agents in parallel git worktrees, free and MIT-licensed. What it does, how it compares, and where it's rough.

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