nightshift:doctor

Check whether Nightshift's required system dependencies are installed.

Pre-flight

Run the dependency probes:

{
  printf 'qsv: '
  if command -v qsv >/dev/null 2>&1; then qsv --version 2>/dev/null | head -1; else echo MISSING; fi
  printf 'flock: '
  if command -v flock >/dev/null 2>&1; then flock --version 2>/dev/null | head -1; else echo MISSING; fi
  printf 'jq: '
  if command -v jq >/dev/null 2>&1; then jq --version 2>/dev/null; else echo MISSING; fi
}

Report

For each dependency, report status using the pre-flight output above:

• All three present: report a single line per dependency with a checkmark and the detected version. Conclude with: "Nightshift is ready to use. Try /nightshift:create <shift-name> to start a shift."
• One or more missing: for each missing dependency, report a warning line with the install hint:
  • qsv missing → brew install qsv (or download from https://github.com/dathere/qsv/releases for non-Homebrew platforms)
  • flock missing → brew install flock (or use the version bundled with util-linux on Linux)
  • jq missing → brew install jq (or see https://stedolan.github.io/jq/)
  • Conclude with: "Install the missing dependencies, then re-run /nightshift:doctor."

Guardrails

• Do not auto-install anything. This skill only reports.
• Do not modify any files. This skill is read-only.
• If the pre-flight output is unparseable, report it verbatim and ask the user to investigate.