pair

You run one task through a manager subagent. Neither you nor the agents implement in your context; you are the only one who touches the remote.

Flags: --no-worktree (new branch in the current checkout), --push (push + PR without asking), --model (implementer model; default: by size, the manager agent's step 3).

1. Resolve

• Target repo per the next skill's BOARD.md, Target repo section (path in §2): -R <o/r> on every gh call. Number → gh issue view <n> -R <o/r> (on a fork, the parent's issue is fine to read). Text → write a 3–6 item acceptance checklist.
• Repo facts: default branch, branch prefix (user's CLAUDE.md, else feat), test command, CONTRIBUTING.md / AGENTS.md.
• Fork (upstream remote): reading is fine, so git fetch upstream, fast-forward default to upstream/<default>, then confirm every file or symbol the issue names still exists. Put anything missing in the brief.

2. Isolate

origin a relative path (git remote get-url origin has no scheme://, host:, leading / or drive letter, e.g. ../origin.git): git resolves it from each worktree's own root, so fetch and push fail inside a worktree. Make it absolute first, from the main checkout: Git Bash or mac/linux git -C "<main>" remote set-url origin "$(cd "<main>" && cd "<url>" && pwd)"; PowerShell git -C "<main>" remote set-url origin (Resolve-Path (Join-Path "<main>" "<url>")).Path. Same target, and remotes are shared by every worktree, so this one change covers them all; tell the user the old and new URL.

slug = issue-<n>-<kebab-title>   (or ≤6 kebab words of the task)
git worktree add ../_worktrees/<repo>-<slug> -b <prefix>/<slug> <default>

This is the one branch rule; a planner brief's Branch follows it, and when a brief names one, use it verbatim (<slug> = its part after <prefix>/).

--no-worktree: git switch -c <prefix>/<slug> <default>. Existing worktree or branch → reuse it and say so.

Deps (node_modules, .venv): link each from the main checkout, paths quoted (shown for .venv). Windows: link only when both paths are absolute; an empty one puts the junction at the drive root (C:\.venv).

• Windows, Git Bash (cygpath builds the paths; without MSYS_NO_PATHCONV MSYS rewrites /J into a path):

  w=$(cygpath -wa "<wt>"); m=$(cygpath -wa "<main>")
  if [[ $w == [A-Za-z]:'\'?* && $m == [A-Za-z]:'\'?* ]]; then MSYS_NO_PATHCONV=1 cmd /c mklink /J "$w\.venv" "$m\.venv"; else echo "STOP: path not absolute: '$w' '$m'"; fi

• Windows, PowerShell: if ("<wt>" -match '^[A-Za-z]:\\.' -and "<main>" -match '^[A-Za-z]:\\.') { cmd /c mklink /J "<wt>\.venv" "<main>\.venv" } else { "STOP: path not absolute" }.
• mac/linux: ln -s "<main>/.venv" "<wt>/.venv".

Issue number on a board, worktree/branch not reused → (fork: only after the target-repo answer) move it to In Progress and comment "Started on branch <branch>" (the next skill's BOARD.md: ~/.claude/skills/next/ or, as the plugin, kanban/next/). Board errors never block the task.

3. Delegate

One blocking call, subagent_type="manager" (or "krish:manager" when installed as the plugin; never fork: it ignores the model and can't nest):

working directory: <absolute worktree path>
task: <#n: title> + acceptance checklist
key files (verified): …   missing/moved: …
rules: prefix=<p>, protected=<default>, test cmd=<cmd>, commit style=<…>, read <AGENTS.md>
implementer model: <--model or "by size">
decisions: <ask | assume>; first A-id: A-<k> (next after the highest A-<number> in main's register)
register header: <main's register header row, verbatim; none → the default in TEARDOWN.md, Register rows>; each A-n is one row in that format
max_rounds: 3
never push, merge, or open a PR.

Leave the worktree alone while it runs.

4. On return

1. INTERIM report, or one missing the Branch, Tests or Rounds section (a placeholder, a one-liner) → not a result. INTERIM: wait for the next handback. Otherwise ask the manager once (SendMessage) for its full report; still missing → rerun from §3 with a fresh manager.
2. Show the report verbatim.
3. Thin report or risky change → rerun the tests yourself. One-line fixes: commit them.
4. Unfinished (skilleddocs/HANDOFF.md, or the SHA that last held it) → say what's left; offer another round from it.
5. Before any push: git -C <worktree> diff --name-only <default>...HEAD lists no skilleddocs/HANDOFF.md, nothing in the handoff folder (AGENTS.md/CLAUDE.md's, else skilleddocs/handoffs/) in commit mode, and nothing under skilleddocs/ or that folder when untracked (TRACKING.md). A hit → remove it in a commit.
6. --push or the user says go:

   git -C <worktree> push -u origin <branch>
   gh pr create -R <o/r> --head <origin-owner>:<branch> --title "<title>" --body "<summary>\n\nCloses #<n>"

   <o/r> = the PR's base: on a fork, ask fork or parent first; the parent only on an explicit yes naming it. Never merge.
7. Review comments later → step 3 again, comments as the task, same worktree.

5. Print and teardown

Print: branch, worktree, PR URL or "not pushed", test result, rounds, HANDOFF.md path if any.

Teardown only after the PR merges, with the exact commands in TEARDOWN.md (Git Bash and PowerShell). git worktree remove deletes git-excluded files silently, and it and any recursive delete (rm -rf, Remove-Item -Recurse) follow a link and empty the main checkout's copy: never run them while a link exists.

1. Records: every untracked or ignored file under the worktree's skilleddocs/ and the doc folders AGENTS.md/CLAUDE.md names (dated handoffs, HANDOFF.md, the decisions register, anything else) goes to the same subpath in the main checkout: new files moved without overwriting; HANDOFF.md renamed to a dated handoff in main's handoff folder (never overwriting) so the next teardown doesn't clash on it; the register merged by appending the rows whose ids main lacks. The worktree's register is deleted only when every line was carried over or is already in main (trailing \r ignored); a heading, prose, a wrong cell count or a clashing row keeps it and prints STOP with those lines. A same-named file stays put and is reported.
2. Unlink each dep (removes the link only).
3. Hard check: STOP while a dep link (dangling included) is left or git -C "<wt>" status --porcelain --ignored --untracked-files=all -- <doc folders> lists anything; only then git worktree remove.

STOP → leave the worktree and report what is left. git worktree remove refuses → stop and report git -C "<wt>" status --short; never --force.