ki-checkpointlisted

# Knowledge Islands portable checkpoints This governance skill owns the portable checkpoint contract: one concise repository record lets a fresh agent reconstruct an active human-named thread without claiming access to the original conversation. Read [the checkpoint standard](references/standards-checkpoints.md) before reading, creating, updating, or retiring a record; [the generated rubric](references/rubric.md) publishes its mechanical and judgment criteria, and [the sources](references/sources.md) record the contract's provenance. ## Shared model - **Active record** — one regular Markdown file at `+/_CHECKPOINTS/<thread>.md`, where `<thread>` is the user-selected portable name. Updating replaces this snapshot in place; Git supplies history. - **Retired record** — an explicitly moved record at `+/_CHECKPOINTS/_RETIRED/<thread>.md`. It remains recovery evidence but is never selected for resume. - **Reconstruction, not continuity** — a checkpoint carries only enough state for a fresh agent to continue. It is never a transcript, vendor-session identifier, conversation locator, completion signal, roadmap, decision log, or memory system. - **Explicit write authority** — create or update only at the user's request or a documented repository-local trigger. Retire only on explicit user direction after durable facts have reached their canonical owners. When the selected thread or content is uncertain, do not write. `ki-checkpoint` remains the portable reconstruction record; `ki-