slice-landlisted

> Spec 007 created this skill from scratch. The deterministic readiness > checks + report generation live in `land.py`; this SKILL.md drives the > judgment layer (when to invoke, how to interpret blockers, what mode to > pick). ## What this skill does Closes the worktree-drift gap: every slice in jig today commits to a worktree branch and stays there until a human remembers to merge. The skill provides a deterministic landing path: - **Verify** the slice is actually done — STATUS=DONE in spec.md, full test suite green, deviation log section present, DoD checkboxes all ticked. - **Emit** a structured markdown report with four readiness checks and (in `--mode direct` or `--mode pr`) a Next-steps section of suggested git commands. `prepare` is **non-destructive on git state**: it may read branch state and fetch `origin/main` to surface a branch-freshness warning, but it never switches branches, merges, pushes, or removes worktrees. `execute --mode direct` runs the destructive merge sequence by pushing the current branch to `origin/main`, then fast-forwards the canonical local `main` worktree to `origin/main` or reports why local sync was skipped (slice 007-02 + 081-01); `execute --mode pr` runs the destructive push + PR-open sequence (slice 007-03). `git worktree remove` and `gh pr merge` are never executed — both stay user-driven post-landing suggestions. ## How to use ### Run the readiness check ```bash python3 "${PLUGIN_ROOT}/skills/slice-land/land.py" prepar