handoff-createlisted

# Handoff: Create The user is usually in the middle of one task and has stumbled onto a *second* thing worth doing later. This skill captures that second thing into a file so they can keep going on the first task without losing context. The whole point is to be quick and non-disruptive. Save the handoff, confirm in one or two lines, and let the user return to what they were doing. Do **not** start solving the parked task — that is what `handoff-invoke` is for later. ## Where the file goes Handoffs live in a `.handoffs/` directory in the **root of the current project** (the working directory the user is operating in — in practice almost always a project repo). Create the directory if it does not exist. Files are named `handoff-NNNN.md` with a zero-padded 4-digit number. ## Step 1 — Pick the mode Two modes, decided from how the user phrased the request: - **relevant** (default) — Capture only the slice of the conversation tied to the thing being parked, rewritten as a clean task brief. Use this unless the user clearly asks for the whole conversation. - **full** — A verbatim transcript of the last N messages. Use this when the user says things like "save the whole conversation", "dump the last messages", "save the last 20 messages". Default N = 20; honor a different count if the user names one. If it is genuinely unclear in **relevant** mode *which* topic should be parked (the conversation covers several things), ask one short question — e.g. "Which part shoul