Reliably healable repairs run silently — the user-gated Repair banner retires

General ruling (2026-07-29): app-initiated covers every reliably healable repair — unambiguous, content-lossless — because heals are auditable: Pro's separate heal commit is the durable trail, base happens quietly, and a heal that changes user content announces with a warning-tone notice, never a consent gate. The user-gated class stays defined but has no current members. Duplicate-id healing goes silent under Lanework-owns-the-board (free to re-mint UUIDs at will): no condition banner, no Repair button — a scheduled heal remints withheld occurrences (memo-guarded, disk re-verified, no-op on vanished duplicates) and posts "Repaired duplicate id — 'Fix login'". Winner rule unchanged: earlier commit on git boards, filesystem birth date then traversal order without history. 06 keeps the Repair verb as the heal commit's name; 13 moves the remint outside undo with all heals. Dissolves the Repair-has-no-Nexus-row contradiction — no command, no row owed.

Board: Contradictions card ce5e7f60 → Resolved (lane now empty); Implementation card 50ed2b5d (Active) retitled "Dedupe duplicate ids and heal them silently" and realigned mid-flight.

Claude-Session: https://claude.ai/code/session_01CqjXB7ASoWtbyoGod68k97

DESIGN/06-history-undo.md

@@ -30,7 +30,7 @@ Git is the undo substrate — on boards that have git. **Git is opt-in per board
 The pathfinder's message engine carries over as the model — it is what earns the "semantic" in semantic commit messages, and it stays a pure, testable function:
 
 - **Pure snapshot diff, no write-site tagging.** Messages compose at commit time from a structural diff of two board snapshots (last-committed vs. current) — never by intercepting operations. Items match by id across the *whole* board, so a lane change is distinguishable from delete+add and a cross-lane move reads as a move. Bookkeeping — `order` changes that preserve sibling sequence (a renumber's rescale — 01-storage-format.md), `modified`/`created`, and an on-touch heal's backfilled `kind` (01-storage-format.md ▸ Validation and healing) — produces no events: a diff touching only those composes nothing. Sequence is what the diff compares, not raw `order` values: an order change that *repositions* an item among its siblings composes Reorder, so a foreign writer's single-file reorder still reads as one. A midpoint-exhaustion renumber batches with the insert or move that triggered it, so its commit reads as that event.
-- **Vocabulary**: Add / Delete / Move / Rename / Edit / Restyle / Resize / Reorder over cards, lanes, and the board, plus Attach / Remove for attachment files ("Move card 'Fix login' to Doing", "Rename lane 'Todo' → 'Doing'"), plus **Repair** for the duplicate-id remint ("Repair duplicate of 'Fix login'" — 01-storage-format.md's banner-gated fix; app-mediated, so the composer names it directly instead of reading the folder swap as Permanently delete + Add), plus the trash pair (settled) — **Restore** and **Permanently delete** — distinguished by diff shape alone, keeping the composer a pure snapshot diff: a move into `.trash/` is Delete, a move out of it is Restore ("Restore card 'X'" — drag-to-restore, cut+paste), and an item *leaving the tree entirely* is Permanently delete ("Permanently delete card 'X'" — Delete Immediately, Empty Trash, and any foreign hard removal, which the shape rule catches and describes accurately for free). The trail thereby tells moved-to-trash from gone-forever — the distinction Deleting never forgets (below) asks users to learn. Plural folding applies as usual: Empty Trash reads "Permanently delete 12 cards", cleanly distinct from a multi-select ⌫'s "Delete 12 cards". One commit per debounce window: a single event is the subject (with a detail body where one helps); several events of one kind fold into a plural subject, with shared destinations preserved ("Move 3 cards to Done"); genuinely mixed windows fall back to "Update board" — always with a bulleted body naming every event, so the oneline log stays scannable and the full message stays complete.
+- **Vocabulary**: Add / Delete / Move / Rename / Edit / Restyle / Resize / Reorder over cards, lanes, and the board, plus Attach / Remove for attachment files ("Move card 'Fix login' to Doing", "Rename lane 'Todo' → 'Doing'"), plus **Repair** for the duplicate-id remint ("Repair duplicate of 'Fix login'" — 01-storage-format.md's silent scheduled heal, re-ruled 2026-07-29 from its former banner gate; app-mediated and heal-marked, so its separate heal commit names the remint directly instead of reading the folder swap as Permanently delete + Add), plus the trash pair (settled) — **Restore** and **Permanently delete** — distinguished by diff shape alone, keeping the composer a pure snapshot diff: a move into `.trash/` is Delete, a move out of it is Restore ("Restore card 'X'" — drag-to-restore, cut+paste), and an item *leaving the tree entirely* is Permanently delete ("Permanently delete card 'X'" — Delete Immediately, Empty Trash, and any foreign hard removal, which the shape rule catches and describes accurately for free). The trail thereby tells moved-to-trash from gone-forever — the distinction Deleting never forgets (below) asks users to learn. Plural folding applies as usual: Empty Trash reads "Permanently delete 12 cards", cleanly distinct from a multi-select ⌫'s "Delete 12 cards". One commit per debounce window: a single event is the subject (with a detail body where one helps); several events of one kind fold into a plural subject, with shared destinations preserved ("Move 3 cards to Done"); genuinely mixed windows fall back to "Update board" — always with a bulleted body naming every event, so the oneline log stays scannable and the full message stays complete.
 - **Implied events don't steal the subject**: deleting a lane with five cards reads "Delete lane 'X'" with the card deletions as body bullets — not "Update board".
 - **Non-snapshot files commit too** (settled — the repo tracks more than the model: the agent guide, `CLAUDE.user.md`, the seeded `.gitignore`, and strays at every level): the committer **stages the whole board root** — whatever `git status` shows, `.gitignore` respected, **open Edit sessions still staged around** (settled): the session card's folder stays excluded exactly as in Rules ▸ Auto-commit, whole-root staging widening *what* commits, never overriding the exclusion — and its commit condition is the *tree*, not the snapshot diff, so a stray-only window commits rather than leaving the tree dirty (firing mid-session, it commits the strays and leaves the session folder untouched) (a permanently dirty stray would break branch switch's cannot-fail-dirty guarantee and void flush-before-overwrite for every file the model can't see). The composer's input extends accordingly: beside the snapshot diff it receives the changed-path list, and non-snapshot paths compose **path-shaped events** — `CLAUDE.md` composes "Update agent guide (vN)", the version read from the guide's marker first line (a pure function of file content, *not* write-site tagging — the no-interception rule stands); any other non-snapshot path composes "Update '⟨path⟩'", folding plural ("Update 3 files"). Model events keep the subject when present; non-snapshot changes then ride as body bullets — recorded, never silently absorbed under an unrelated subject. Attribution needs no new rule: the EchoLedger (02-architecture.md) is path-keyed, so the app's guide write classifies app-mediated by its receipt (the mechanism behind the guide-attribution exception below) and a stray edit classifies foreign, the two-commit split applying per file as everywhere else.
 - **Healing mutations commit separately** (ruled 2026-07-29 — 01-storage-format.md ▸ Validation and healing): a debounce window holding a scheduled heal's changes alongside anyone else's splits the heal's paths into their own commit — the two-commit split's mechanism with a third class, keyed by the Writer's heal-marked receipts in the EchoLedger (attribution machinery, like the author split; the composer stays a pure diff reader and names the heal commit from its own diff shape — a loose-file relocation reads as its Attach-shaped event, a legacy migration's move into `.trash/` as Delete, the guide as "Update agent guide (vN)"; that the shape vocabulary doesn't say "healed" is accepted, the banner already told the user). Mostly redundant — each scheduled healer runs its own bracket at the reload tail, normally its own window — but the split makes separation a guarantee rather than a timing accident. On-touch and inline heals are structurally exempt: each lives inside a host write or its triggering gesture and rides that commit, the backfilled `kind` composing no event per the bookkeeping rule above.