finding(plugin-grid): ObjectGrid honours four undeclared authored column keys via `(col as any)` — the #6425 shape at the other producer

[claude]

Found while implementing #6004 (typing ObjectGrid.generateColumns()'s emit). Filed unassigned. #6004's fence is what this producer writes; this is the same producer's READ of its authored input, and it is the exact mirror of #6425 — which recorded this shape for ObjectDataTable, the other column producer. #6004 named only the write side.

Measured (at 129c7a9e7)

packages/plugin-grid/src/ObjectGrid.tsx, inside generateColumns()'s ListColumn branch, reads five keys off the authored column through a cast:

line	read	declared by ListColumn?
:1815	(col as any).format	no
:1840, :1841	(col as any).options	no
:1846	(col as any).appearance	no
:1925	(col as any).prefix	yes — the cast is unnecessary
:1951	(col as any).essential	no

ListColumn (@objectstack/spec@17.2.0, re-exported by packages/types/src/objectql.ts:74) declares exactly: field, label, width, align, hidden, sortable, resizable, wrap, type, pinned, summary, prefix, link, action.

So four of the five are honoured at runtime and refused by the schema — ListColumnSchema is a strict object, so an author who wrote essential: true or appearance: … on a list column would get unrecognized_keys at publish while the renderer happily reads them. That is the declared != enforced split AGENTS.md #0.1 exists to stop, and the as any is the tell — the same tell #5853 removed for type.

The fifth (prefix) is the opposite bug and free to fix: it is declared, so the cast is pure noise hiding the other four among lookalikes.

Not dormant

These are live limbs, so this is a different adjudication from #6004's — retiring an inert write costs nothing, while removing a read is a behaviour change:

• format promotes a text column to a richer renderer via resolveCellRendererType (e.g. format: 'phone' → PhoneCellRenderer).
• options overrides the object schema's select options (:1840-1842).
• appearance drives badge styling (:1846-1849).
• essential decides the mobile hidden sm:table-cell class (:1951).

Census correction to #6004, recorded here

#6004's suggested key list named essential among the keys "ObjectGrid attaches". It does not: essential is read off the input and turned into a className, and it is never emitted. It is also not a ListColumn member. It belongs on this card, not that one.

Suggested disposition (not a decision)

Per key: declare it on ListColumn in @objectstack/spec (if the capability is wanted at the authoring surface), or stop reading it (if the object-schema-level spelling is the intended one). Contract-first says the answer cannot be a renderer-side tolerance either way. Drop the prefix cast regardless.

Related

• finding(plugin-grid): ObjectGrid's generateColumns() is untyped (any[]), so nothing type-checks what it writes into DataTableSchema.columns: TableColumn[] — the hole that hid #5853 and #5453 #6004 — the WRITE side of this same seam (parent card)
• finding(plugin-dashboard): ObjectDataTable honours five undeclared authored column keys as field-meta overrides #6425 — the identical read-side finding for ObjectDataTable, the other producer
• finding(types): TableColumn.type disagrees three ways — interface declares 8 literals, zod mirror accepts any string, renderer's live read set handles values outside the union via an as any cast #5853 — the type key, where this exact cast-shaped tell was removed
• finding(plugin-grid): ObjectGrid 在 ObjectGridSchema.columns 上容忍未声明的 accessorKey / header 拼写 —— 声明类型是 strict 的 ListColumn,#3104 的列身份门禁结构上看不见这条支路 #5068 / ObjectGrid renders a header-only grid in total silence when no column resolves — one wrong first column used to take the whole set down, now every wrong column does #5349 — ObjectGrid's column-spelling input tolerance, the same boundary

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Generated by Claude Code

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Generated by Claude Code

[os-trump]

Triage (findings grading round): promoted finding → graded, domain:ui, type Bug (four live declared≠enforced reads — an author writing the spellings the renderer honours gets unrecognized_keys at publish). State:

Blocked-by: #6004

Same file, same generateColumns(), producer half in flight. Unlock notes: (1) the prefix cast drop is free and unconditional; (2) the per-key adjudication has a CROSS-REPO leg — ListColumn is @objectstack/spec surface, so any "declare the key" outcome is a domain:spec card in objectstack (clause ②, widening a published contract), while "stop reading" is a ui-side behaviour change needing an authorship measurement; the ui seat charters the measurement, and the declare-leg cards transfer to the spec seat per key — ⛔ no renderer-side tolerance either way; (3) the #6004 census correction (essential is read, not emitted) is recorded here and stands.

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Generated by Claude Code

[os-support-ai]

Unblocked — Blocked-by: #6004 resolves. ⚠️ Re-measure before dispatch: the merge that closed it changed this card's terrain, and this card more than its siblings.

#6004 closed completed on 2026-08-26T02:16:37Z via merged PR #6461, "type ObjectGrid's column emit against the TableColumn[] slot it fills".

Re-read from main as part of the unlock:

• packages/plugin-grid/src/ObjectGrid.tsx — generateColumns is now useCallback((): ObjectGridColumnDraft[] => {, and the call site reads .map((col): ObjectGridColumnDraft =>. The (col as any) mechanism this card is named for is gone from that path.
• packages/types/src/data-display.ts — TableColumn is unchanged: none of headerIcon, options, pinned, wrap, essential is declared on it.

So the two halves of this card have moved in opposite directions: the route it describes (undeclared keys surviving via as any) has been closed, while the keys it names are still undeclared on TableColumn — they now live on a plugin-grid-local ObjectGridColumnDraft instead. Whether that constitutes the fix, or merely relocates the tolerance one type away from the slot it fills, is the question this card now asks. It is a different question from the one in its body, and it may well be a smaller card than it was.

Returned to pm:queue, not dispatched this round. ⛔ Do not implement from this card's body as written — measure ObjectGridColumnDraft's declaration and the consumer's reads first, then restate what is left.

Sibling cards unblocked by the same closure, same warning: #6424, #6425, #6457, #6459.

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Generated by Claude Code