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The loader collects every fail-fast defect and honors per-open skips

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Phase 1 of the decision surface (01 ▸ Malformed input, settled
2026-07-31): BoardLoadFailure aggregates the walk's defects in walk
order — stop-at-first retires. Environmental failures (unreadable root,
not-a-directory) stay immediate single-defect throws: there is no walk
to collect from. A defective root index is recorded and the walk
continues into the children (nothing in the walk consults the parsed
root document — verified); a defective lane, card, or trash-entry index
records and skips its subtree, Re-check's whole-walk re-aggregation
being the designed loop for what hides beneath. load(skipping:) is the
per-open skip channel: a skipped path's item is omitted from the model
and surfaces as LoadWarning.userSkipped; root paths are unskippable by
construction. The reload-breakage banner carries the aggregate ("…and
N more"), single-defect sentences byte-identical to before. Two new
multi-defect fixture boards; suite 2591 green.

Claude-Session: https://claude.ai/code/session_01CqjXB7ASoWtbyoGod68k97
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rzen
2026-08-01 09:12:49 -04:00
parent 94e60cd444
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Fixtures/README.md
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@@ -26,7 +26,7 @@ Lane/card folder names are fixed literal lowercase-UUIDv4-shaped strings (never
## Malformed/ — one board per fail-fast case
Each board is minimal: one broken thing.
Each board is minimal: one broken thing. The two multi-defect boards at the bottom are the deliberate exceptions — they exist precisely because the loader collects rather than stops (01-storage-format.md § Malformed input, settled 2026-07-31), which is a claim no one-broken-thing board can make.
| Board | Case |
|---|---|
@@ -34,5 +34,7 @@ Each board is minimal: one broken thing.
| `missing-schema.kanban` | Board root `index.md` has no `schema` key — the **root only**; below it a missing `schema` reads as 1 (`Valid/optional-keys.kanban`). |
| `schema-newer-than-app.kanban` | Board root `schema: 2`, newer than `BoardLoader.supportedSchema`. |
| `board-root-missing-index.kanban` | The board root folder itself has no `index.md`. |
| `many-defects.kanban` | **The collect-all board.** A root with no `schema`, a card with `schema: 2`, and a lane whose frontmatter will not parse — three fail-fast classes on one board, reported as one `BoardLoadFailure` in walk order (root, then lanes by folder name with their cards inside them). The broken lane also holds a broken card, which is deliberately **not** in the aggregate: a broken lane takes its subtree with it, and the repair's re-check is what reveals what it was hiding. Two further lanes load fine, which is what proves the walk kept going. |
| `skippable-defects.kanban` | **The skip channel's board.** `many-defects.kanban` minus the root defect — the root is never skippable, so a board whose defects are all skippable must have an intact root. Skip both (the newer-schema card and the unparseable lane) and it opens: without them, without the broken lane's own perfectly valid card (the subtree goes too), and with a `LoadWarning.userSkipped` per skip as the loud mark the opened board's notice is written from. |
The four `order` boards that used to live here — `missing-order-lane`, `missing-order-card`, `explicit-null-order`, `non-numeric-order` — were retired on 2026-07-31, when `order` became optional below the board root. Their shapes all live on in `Valid/optional-keys.kanban` as coercion cases.