Software Engineering

An API is not only an HTTP path or function signature. It is a contract about syntax, semantics, timing, errors, ordering, defaults, and lifecycle. Breaking changes often happen because a server remains syntactically compatible while changing one of those less-visible assumptions. Safe API evolution starts by identifying what clients can reasonably depend on and designing changes that allow old and new versions to coexist. Compatibility has multiple dimensions A change can preserve JSON shape and still break clients.

Modern editors such as VS Code, Neovim, Emacs, and Sublime Text can share language intelligence through the Language Server Protocol (LSP). A language server runs separately from the editor and provides features such as completion, diagnostics, symbol navigation, hover information, and refactoring support. How LSP Works A typical setup has three parts: a language server installed on the system or inside the project; an editor or editor plugin that speaks LSP; project configuration the server can understand. For example, Neovim can connect to gopls for Go, while VS Code normally installs the appropriate extension that manages the server integration.