spec-editor articlesA system for building and maintaining software with AI agents, around a requirements model.https://spec-editor.com/The model should describe the system as it is, and leave the history to githttps://spec-editor.com/articles/the-model-should-describe-the-system-as-it-is/https://spec-editor.com/articles/the-model-should-describe-the-system-as-it-is/Requirements written as changes pile up into true statements that never say what the system does today; a requirement file should describe the current state.Fri, 09 Oct 2026 00:00:00 GMTFive ways to tell an agent what to build, and where each one stopshttps://spec-editor.com/articles/five-ways-to-tell-an-agent-what-to-build/https://spec-editor.com/articles/five-ways-to-tell-an-agent-what-to-build/Five families of tools hold what an agent needs to know about a system, and none of them records what the running system actually did.Wed, 07 Oct 2026 00:00:00 GMTCode got cheap in 2026. Knowing what to build did not.https://spec-editor.com/articles/code-got-cheap-in-2026/https://spec-editor.com/articles/code-got-cheap-in-2026/Agents now write about half of professional developers' code, so the hard part has moved to knowing exactly what should exist.Mon, 05 Oct 2026 00:00:00 GMT