Capstone: feature
From this skill's base directory, read ../core/references/core.md
(this command routes rather than writes, so core-authoring.md is not
needed), then execute
../core/references/protocols/feature.md
exactly.
Always ask subagents or inline at the start of each run, including resumes. Wait for the explicit choice and carry it through the whole chain, including planning, review and reference refreshes.