---

name: start-over description: Archives or quarantines current Clean Room artifacts and restarts from the scope gate with a fresh task id. argument-hint: [existing artifact roots and restart confirmation] disable-model-invocation: true

Clean Room Start Over

Start a clean-room run over without overwriting or deleting existing artifacts in place.

Use the canonical clean-room skill workflow and references in this plugin. Preserve the same clean-room boundary, role separation, artifact schemas, leakage rules, implementation-root rules, and hook expectations.

Archive First

Require explicit user confirmation before changing artifact locations. Stop if confirmation is absent, authorization is unclear, or the archive target overlaps a source root in a way that would make provenance unclear.

Archive or quarantine previous artifacts before creating new ones:

• Prefer the task-manifest.json artifact_paths.quarantine path.
• Use a user-supplied quarantine path only when it is separated from source roots, contaminated artifact roots, clean roots, and implementation roots.
• Keep contaminated artifacts only under a contaminated-domain archive or quarantine directory.
• Keep clean artifacts only under a clean-domain archive or quarantine directory.
• Do not mix contaminated and clean archives.
• Do not delete artifacts.
• Do not overwrite an existing archive path; create a unique archive directory.
• In the project layout, archive scope is the task folder only. Never archive, move, or quarantine the project root, clean-room-project.json, or the shared project-level implementation/ root; sibling tasks depend on them, and implementation content is destination state, not per-task artifact state.
• Preserve existing preflight-goal.json, task-manifest.json, ledgers, handoff packages, behavior specs, skeleton manifests, implementation plans, implementation reports, QC reports, incident records, and open delta tickets.

If safe archive targets cannot be proven from task-manifest.json, root environment, or explicit user input, stop before moving anything.

Restart Gate

Start from the preflight gate, not from prior QC:

• Create a new preflight-goal.json or explicitly reuse a reviewed goal contract before recreating active artifacts.
• Reconfirm requester authorization, source or visual evidence scope, allowed actions, prohibited actions, and evidence handling.
• Reconfirm source roots or visual roots, contaminated artifact roots, clean roots, implementation roots, and clean allowed-read roots are separated, and that root path names are not source-derived.
• Preserve source or visual roots and authorization only when they are still valid for the requested restart.
• Create a fresh neutral task_id by default. Use task- plus 8 lowercase hex characters unless the user provides an explicitly approved neutral ID. Do not derive the new ID or output directory names from source folder names.
• In the project layout, the new task joins the same project by default. Starting a new project instead requires an explicit user choice and a fresh neutral project name (random word pair or proj- plus 8 lowercase hex, never source-derived).
• Record run_state.generation, run_state.started_at, optional run_state.previous_generation_ref, and run_state.restart_reason.
• Recreate clean-run-context.json from the new effective preflight and initialization choices; do not carry forward an old clean context by default.
• Rebuild source-index.json, or visual-index.json for visual fallback runs, unless the user explicitly says the source or visual scope is unchanged and a recorded old index hash can still be validated.
• Preserve the selected controller mode only if the user reconfirms it or it is recorded in the still-valid manifest.

Do not carry forward prior chat history or unapproved clean artifacts. Treat archived artifacts as audit history, not active task state.

Output

Return a concise restart summary:

• Archived artifact roots and archive targets.
• Authorization and root-separation status.
• New task_id or generation identifier.
• Whether a new or reviewed preflight-goal.json is active.
• Whether source-index.json or visual-index.json must be rebuilt.
• The next scope-gate action.

Do not carry forward unapproved implementation code as active task state.