Handoff

Handoff

ARGUMENTS: $ARGUMENTS

Hand off the current work to a fresh agent, seeded with a summary of the current context. $ARGUMENTS (if provided) describes what the new agent should focus on next; if empty, infer it from the recent conversation.

This skill uses the sculpt CLI. The agent shell already has SCULPT_WORKSPACE_ID (current workspace) and SCULPT_PROJECT_ID set.

Step 1 — Choose the destination

The handoff can land in one of two places:

• New agent, same workspace — shares this workspace's filesystem and branch, so it picks up exactly where this one left off (including uncommitted changes).
• New workspace — a fresh, isolated workspace on its own auto-named branch cut from the current branch, for continuing the work in a clean checkout.

If $ARGUMENTS already makes the choice clear (e.g. it mentions "new agent", "same workspace", or "new workspace"), use that. Otherwise, ask the user which one with your question tool — mcp__sculptor__ask_user_question if it's available, otherwise the built-in AskUserQuestion — and wait for the answer before creating anything. (The tool call raises the "waiting for input" status that alerts the user; don't ask in plain text.)

Step 2 — Pre-flight: commit uncommitted work (new-workspace mode only)

Skip this step if the user chose "new agent, same workspace" — the same workspace shares this working tree, so uncommitted work is visible to the new agent as-is.

For new workspace mode, the new workspace is cut from a commit on the current branch in the project's on-disk git repo. Anything not committed won't be visible to the new agent. Walk the user through it so they're never surprised.

Run from the repo root:

git status --porcelain

If the output is non-empty, list the affected paths (just the paths, not the diffs) and ask with your question tool:

You have N uncommitted change(s). Commit them before handing off?

• Yes, commit them — write a concise commit message inferred from the conversation and run git add -A && git commit -m "<msg>". Surface the message you used in your next text reply so the user can amend if they want.
• No, leave them — the new agent won't see those changes.

Do not prompt for a push. The new workspace shares the user repo's .git, so committed work is visible to it locally — pushing to origin is a separate concern (CI, MR linkage, code-review visibility) the user can do when they're ready, and Sculptor's in-workspace diff display doesn't require origin connectivity either (origin/* refs are seeded locally at workspace creation).

Step 3 — Compose the handoff prompt

Write a self-contained prompt so the new agent can continue without access to this conversation:

• A summary of the task and the current state of the work.
• Key context: relevant files, decisions made, what is done, what remains, and anything already tried that didn't work.
• The next concrete step(s) to take (from $ARGUMENTS or the inference above).

Summarize; don't dump the whole transcript.

Step 4 — Create the handoff

New agent, same workspace — the new agent shares this workspace's branch and files, so reference them by path; it can see them (and uncommitted changes) directly:

sculpt agent create \
  -w "$SCULPT_WORKSPACE_ID" \
  --name "<short task name>" \
  --json \
  --prompt "<the prompt from step 3>"

New workspace — first get the current branch, then create a workspace + agent based off it:

git rev-parse --abbrev-ref HEAD   # the source branch

sculpt run \
  --strategy worktree \
  --branch "<current-branch>" \
  --name "<short task name>" \
  --json \
  "<the prompt from step 3>"

--strategy worktree --branch <current> creates the new workspace on a fresh, auto-named branch cut from the current branch — the same mechanism the UI uses — so the committed work carries over.

Use sculpt run, not sculpt workspace create. sculpt run creates the workspace, its agent, and the git worktree in one step. sculpt workspace create only registers a workspace record — no agent, no checkout — so it renders as a blank screen in the UI. To add an agent to an already-empty workspace, run sculpt agent create -w <ws_id> -p "...".

Add -m sonnet (or another model) to override the default model.

Step 5 — Report back

Parse the JSON output and tell the user the new agent ID (and the new workspace ID, when a new workspace was created) so they can switch to it.