fastC

Blog

Notes on the language.

Field notes on what changes when agents write the systems code and humans review it. Some posts are language-design rationale; some are concrete bug-shape catalogues; some are honest comparisons against other languages.

  • What goes wrong when LLMs write C: the recurring bugs
    2026-06-04 · 8 min read · agents, c, safety, language-design
    The bug shapes we see over and over when an agent generates C, and which of them fastC structurally prevents, converts into a build-time trap, or simply makes louder.
  • Reading fastC: side-by-side syntax with plain C
    2026-05-30 · 9 min read · language, syntax, tutorial
    A column-by-column tour. If you can read C, you can read fastC in twenty minutes — but the things that look the same do not always mean the same thing.
  • Why agent-friendly is a real language design goal
    2026-05-22 · 7 min read · agents, language-design, philosophy
    "Designed for LLMs" sounds like marketing. It is not. Here is the concrete list of language-design choices that change when the modal author of code is a stochastic process.

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