Effect

Effect ships its own agent guide (node_modules/effect/AGENTS.md) and its full source in the installed package; that guide sets the style this skill follows. Everything here targets v4, where every package shares one 4.x version and the HTTP, SQL, RPC, AI and CLI modules live in effect itself (effect/http, effect/sql, ...). Code written from memory of v3 names (Either, catchAll, Context.Tag, effect/unstable/*) is the most common source of APIs that don't exist; each file maps the v3 names it replaces.

Apply only the routes and checks for the selected job. Read a linked skill's named file from its installed folder when available, or from the linked source. Report an unavailable required reference instead of inventing it. [skill-authoring, DISTRIBUTION.md#composing-skills]