add-feature

Use when adding a medium or larger feature (or a non-trivial change) to the azure-functions-agents-runtime repository — i.e. anything that introduces new public surface, spans multiple modules, or changes authoring/discovery/registration behavior. Drives the full feature lifecycle defined in AGENTS.md: triage + worktree, writing a Feature Requirements Document (FRD) with a Decisions log, an architecture-review checkpoint, surgical implementation, a testing checkpoint, and documentation updates. Trigger on requests like 'add a feature', 'I want to implement X', 'let's design X', or when a change is clearly larger than a nit/bug/small fix. Do NOT use for typos, formatting, comments, or self-contained one-module fixes — those follow the lightweight lane in AGENTS.md.