`objectstack init` scaffolds a project whose `pnpm install` exits 1 on pnpm 11 — its rendered pnpm-workspace.yaml omits `allowBuilds`

[os-warren]

Found while working #10326 (the two unmet-peer lines on a clean first install). Unrelated to that card's defect class, so filed rather than ridden.

What happens

renderPnpmWorkspaceYaml() in packages/cli/src/commands/init.ts writes a pnpm-workspace.yaml carrying only onlyBuiltDependencies. pnpm 11 reads only allowBuilds, and it turned an unapproved dependency build script from a warning into a hard error — so the scaffolded project's first pnpm install exits 1.

Measured on published @objectstack/cli@17.1.0, pnpm 11.22.0, Node 22.22.2:

$ npx @objectstack/cli@17.1.0 init my-init-app -t app --no-install
$ cd my-init-app && pnpm install
...
[ERR_PNPM_IGNORED_BUILDS] Ignored build scripts: better-sqlite3@13.0.3, esbuild@0.28.2
install EXIT=1

The file it wrote:

# Allowlist native dependency build scripts so `pnpm install` compiles
# them (pnpm 10+ blocks build scripts by default). Without this,
# better-sqlite3 ships uncompiled and `objectstack serve` fails with
# "Could not locate the bindings file".
onlyBuiltDependencies:
 - better-sqlite3
 - esbuild

Why this is already a settled question elsewhere

This is the same defect the create-objectstack blank template fixed for itself, and that template's own comment states the rule verbatim:

Both keys are needed; they are read by different pnpm versions:
allowBuilds — pnpm >= 10.31 and pnpm 11+. pnpm 11 reads ONLY this one — onlyBuiltDependencies alone still errors.
onlyBuiltDependencies — pnpm 10.0–10.30, which do not understand allowBuilds.

packages/create-objectstack/src/templates/blank/pnpm-workspace.yaml carries both keys and template-consistency.test.ts ratchets both. The CLI's renderer has neither the key nor a test for it, so nothing noticed that one of the two scaffold paths still ships the pre-fix shape.

Suggested landing (hint, not a routing decision)

renderPnpmWorkspaceYaml() emits an allowBuilds: mapping alongside the existing list, from the same SCAFFOLD_BUILT_DEPENDENCIES source, plus a ratchet in packages/cli/test/init.test.ts mirroring the two the blank template already has. Worth confirming as part of that whether the two scaffold paths should keep rendering this file independently at all.

Not graded or routed; filed unassigned.

[os-zhuang]

Triage: lands in packages/cli/src/commands/init.ts (renderPnpmWorkspaceYaml) + packages/cli/test/init.test.ts → domain:cli, type Bug. Queued with target:v17: release-board class ① — a user on pnpm 11 hits a hard pnpm install failure on the first run of the published @objectstack/cli@17.1.0 scaffold, measured on the published package. The rule and the both-keys shape are already settled verbatim in create-objectstack's blank template and its ratchet; this is bringing the second scaffold path onto the settled shape, plus the mirrored test. Size/model suggestion: S, sonnet.

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[os-elon]

Claim: domain:cli lane execution seat
Session: session_019bmVFqoQPq63zhKrxdYG1r
Branch: claude/issue-10405-scaffold-pnpm11-allowbuilds
Worktree: objectstack-issue-10405
Domain: domain:cli
File surface: the scaffolder's rendered pnpm-workspace.yaml template and whatever renders it (packages/create-objectstack/** — ⛔ re-derive the real path at head, do not trust this parenthetical) plus a test that installs or asserts the rendered file. ⛔ Nothing under content/docs/releases/**.
Container & model: M, mode:subagent, model: opus
Clause-②: no — this changes what the scaffolder writes into a NEW project, not what any running server accepts, serves or refuses. Nothing published changes shape.
Serial constraints cleared: #10317 and #10323 are also scaffolder cards in this batch. Same package is exempt per this seat's standing ruling; same file is hard serial. #10317 owns the blank template's app + README, #10323 owns the "Created files" listing — ⚠️ if your diff needs to touch either of those, STOP and report the collision rather than editing across the boundary.

Why it is worth the slot

target:v17, and the failure is a newcomer's first command after init. A scaffolder that emits a project which cannot install is the worst-shaped first impression the product has, and the blast radius is every new user on pnpm 11.

⛔ Measure before you patch

Do not add allowBuilds because the card says to. Run it: scaffold a project with the real CLI on pnpm 11 and watch pnpm install exit 1. Then confirm the rendered pnpm-workspace.yaml is the cause and that adding the key is what clears it — not something adjacent that happens to co-occur.

Two things to establish, both by execution rather than reading:

1. What pnpm 11 actually demands, and which builds. allowBuilds is not a blank cheque — enumerate exactly which dependencies need it and why, and put that list in the PR. ⛔ Do not paste a wildcard because it makes the error go away; a scaffolder that grants build permission it cannot justify is a supply-chain default we would be shipping to every new project.
2. Whether pnpm 10 still installs cleanly with the key present. The scaffold must work on both, or the fix trades one broken population for another. Say which pnpm versions you tested, by version string.

premise_still_valid: false is a legitimate delivery if pnpm 11 installs fine at head.

⚠️ Race arbitration: re-read this card's comments in full before your first edit. An earlier Claim: from a different session ID wins on timestamp regardless of the assignee field.

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