Instructions for GSD

Use the get-shit-done skill when the user asks for GSD or uses a gsd-* command.
Treat /gsd-... or gsd-... as command invocations and load the matching file from .github/skills/gsd-*.
When a command says to spawn a subagent, prefer a matching custom agent from .github/agents.
Do not apply GSD workflows unless the user explicitly asks for them.
After completing any gsd-* command (or any deliverable it triggers: feature, bug fix, tests, docs, etc.), ALWAYS: (1) offer the user the next step by prompting via ask_user; repeat this feedback loop until the user explicitly indicates they are done.