Bobby Smart
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Notes

Short, dated notes: cost lessons, prompting habits, and small things I picked up building with AI tools. Rougher and quicker than the writing.

All Opinion Agents & tools AI engineering LLM fundamentals Shipping product
  • Agents & tools Jul 5, 2026

    Make two agents plan, then trade their homework

    The cheapest quality trick I run: have Cursor and Claude Code each draft a plan, then hand each the other one.

  • Agents & tools Jul 4, 2026

    The meal that explains vibe coding

    A friend fed me a dinner she wouldn't describe until after I'd eaten it. I think about that every time I ship code I didn't read.

  • Shipping product Jul 2, 2026

    A whole tool, between 10pm and 1am

    The best thing about this era isn't the big rewrites. It's how cheap it got to scratch a small itch.

  • LLM fundamentals Jun 30, 2026

    Prompt like you order coffee

    Ask for exactly what you want. You can always add the sugar later; you can never take it out.

  • Shipping product Jun 24, 2026

    The interview I won by not writing code

    Everyone reached for a date library. I asked what the user actually needed and answered it with plain integers.

  • Agents & tools Jun 18, 2026

    Set the spend limit before the first prompt

    An agent left running on premium models is a great way to donate money to a cloud provider.

Bobby Smart

Lead author & editor at Codewalkers. Working notes on AI coding tools, agents, and the craft of building software.

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