Sociuu Task Isolation

Before the first product-repository write, determine the exact repository write set and create one task-owned worktree for each repository through the workspace's configured isolation provider.

Require a stable task key, session or task ownership identity, and the intended repositories. Use only the worktree paths recorded by the provider after it returns a receipt.

Do not write in canonical checkouts, another task's worktree, a detached checkout, or an unverified branch. Do not create ad-hoc worktrees to bypass a failed provider. If the workspace has no configured isolation provider, stop and request setup rather than guessing the branch or base.

This skill owns only isolation. Dock owns runtime setup; product repositories own code and tests; the shared delivery contract selects implementation and review providers.