This skill extends superpowers:writing-plans. Follow the superpowers skill completely. When the following events occur, apply these additions:

Before: First action of the skill

1. Detect ticket ID from current branch name (regex [A-Z]+-[0-9]+); if none, use none.
2. Call mark_chapter with {title: "Plan — <TICKET>", summary: "Writing implementation plan"}. If mark_chapter is unavailable (e.g. running outside Claude Code), skip silently.
3. Set terminal window title (CLI Claude Code only — silent no-op in Claude Desktop):

   [ -t 1 ] && printf '\e]2;%s — Plan\007' "<TICKET>" || true

   In Claude Desktop there is no controlling terminal — the visible phase signal comes from mark_chapter (step 2).

After: Plan saved to disk

Invoke devflow:phase-handoff with arguments --phase plan --next-phase lock-tests. The phase-handoff skill writes the frozen-state file, runs a one-click AskUserQuestion gate, then spawns a new Claude Desktop session via mcp__ccd_session__spawn_task titled [<TICKET>] [MR#<N>] Lock Tests (visible in the sidebar). Do NOT auto-invoke devflow:lock-tests from here — the next phase must start in a fresh spawned session, not in this one.

$ARGUMENTS