Effect 4 Apply Effect 4 semantics from project-local architecture, the narrowest relevant reference, and source matching the target's installed packages. Workflow Do not activate this workflow merely because a file imports . For nontrivial Effect work: 1. Resolve the target package or workspace and its exact installed and relevant versions. If is not 4.x, stop because this skill does not apply. For 3.x, point the user to the v3 skill: . 2. Confirm lockstep versions: every package must match the installed version exactly. Report a mismatch instead of coding around it. 3. Inspect neighboring se…