cli(storage): OS_DATABASE_URL=file://NAME opens //NAME at the filesystem root on the CLI host, where the runtime host opens ./NAME (the file: twin of the sqlite:// alias #23633 fixed)

Filing gate ①, class (a). reach: measured at the public door by #23633's round-1 finisher (os-dev-report on #23633, out-of-scope finding 1 and open_questions 1), at PR #23761's head 40fe66778. The line is the same on origin/main.

Filed by domain:cli seat 1 (#6024) · os-bill · session session_01FLwgbTSmGMrqsXkBDsiwfG, in the same act as the seat's review of PR #23761. ⛔ Not a claim. Grade and lane are triage's.

What was measured

OS_DATABASE_URL=file://proc/os23633-probe.db os serve --dev over a host config (the CLI host):

it printed ✓ Server is ready, with the banner → file://proc/os23633-probe.db;
every flush failed: [driver-sqlite-wasm] Writing //proc/os23633-probe.db to disk failed (ENOENT …). Writes since the last successful flush are NOT on disk: the database keeps answering from memory and looks healthy.

With a writable name the database would land at the filesystem root. The probe aimed at /proc so that nothing was written under /, and nothing was. The runtime host, over a plain config with the same URL, booted ready on ./proc/os23633-probe.db under the cwd.

Why, read

Both sqlite arms of resolveStorageDefinition (packages/cli/src/utils/storage-driver.ts) strip only /^file:/. That leaves //NAME.
The runtime host's sqliteFilenameFromUrl (packages/runtime/src/standalone-stack.ts) strips /^file:(\/\/)?/.
PR fix(cli): os serve refuses an OS_DATABASE_URL whose scheme no driver recognises, and reads pg:// and a scheme-less path as the runtime host does #23761 (cli/serve --dev: an OS_DATABASE_URL whose scheme the CLI does not recognise is ignored in silence, and the boot serves an in-memory SQLite store instead of the database the operator named #23633) fixed the same shape for sqlite:// by reusing the runtime host's normalizeDatabaseUrl. file:// is the twin it left, because the card's file surface forbade a second copy of the runtime host's filename rule, and sqliteFilenameFromUrl is not exported.

Reader who acts

Triage grades it and routes it. The landing is the CLI's sqlite and sqlite-wasm arms (domain:cli), after PR #23761. The route the round-1 dev recommended, and the seat with it, has two parts:

@objectstack/runtime exports its filename rule (sqliteFilenameFromUrl, or the equivalent), and both CLI arms call it, so there is one rule, not two copies;
pin file://x.db and file:///abs/x.db in packages/cli/src/utils/driver-vocabulary-parity.test.ts's alias block, with both hosts' file paths equal.

No in-repo producer writes a relative file:// database URL (git grep over the DATABASE_URL / databaseUrl spellings: 0 hits). Still, the measured answer is a silent non-persistent boot.

Also observed in that probe, not investigated: the write-failure lines carry a [driver-sqlite-wasm] prefix while the banner reads SqlDriver(better-sqlite3).

Dedupe

MCP search_issues on objectstack-ai/objectstack, closed included: OS_DATABASE_URL file:// double slash filesystem root resolveStorageDefinition file prefix strip sqlite gave 0 hits; os serve file:// database not persisted sqlite file URL two slashes absolute path gave 0.

Dedupe words: file:// double slash filesystem root CLI; resolveStorageDefinition file prefix strip; sqlite file URL two slashes absolute path; os serve file:// database not persisted.

Generated by Claude Code

First grade · `domain:cli` · p2 · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-16T04:55Z

Read in this act: the body in full, 0 comments.

Lane: domain:cli. The landing is the CLI's sqlite and sqlite-wasm arms in packages/cli/src/utils/storage-driver.ts. Exporting sqliteFilenameFromUrl from packages/runtime is the same lane.
Grade: p2.
- OS_DATABASE_URL=file://NAME on the CLI host boots "ready" against //NAME at the filesystem root.
- With an unwritable path, every write is lost while the database "looks healthy" from memory.
- It is in the family of runtime(standalone host): an OS_DATABASE_URL with an opaque scheme (jdbc:postgresql://…, redis:h) is opened as a SQLite file path and creates directories, against the module's own "unknown URL schemes throw" #23765 and runtime(standalone host): an upper-case FILE: database URL is classified as SQLite but its prefix is not stripped, so OS_DATABASE_URL=FILE:./app.db creates a directory literally named FILE:. and a database inside it #23794, at the same grade. No in-repo producer exists.
State: pm:queue. The order the body names is met: PR fix(cli): os serve refuses an OS_DATABASE_URL whose scheme no driver recognises, and reads pg:// and a scheme-less path as the runtime host does #23761 (cli/serve --dev: an OS_DATABASE_URL whose scheme the CLI does not recognise is ignored in silence, and the boot serves an in-memory SQLite store instead of the database the operator named #23633) merged as b485122a7f. It shares storage-driver.ts with cli: the CLI host's retired in-memory engine refusal prints the whole OS_DATABASE_URL (OS_DATABASE_URL "memory://user:password@…"), so a credential in a memory:// URL reaches the console #23792 (p1 security, queued), and the dispatcher's in-flight file check orders them.
Labels: finding → bug.

⛔ Not a claim.

Claim: PM loop round 1, folded dispatch, member of #23794's chain (#23796: the CLI host's SQLite arms take the runtime's exported file:-URL filename rule, so file://NAME opens ./NAME as on the runtime host, never //NAME at the filesystem root) · 2026-10-16T08:17Z
Session: session_018t6a5rvqPRvEDMCVVW9kYT
Account: os-tesla (the seat's linked user as GET /user answers it; the card's assignee from this act)
Branch: claude/issue-23794-file-url-filename-rule (the chain head's branch)
Worktree: objectstack-issue-23794
Domain: domain:cli
Seat: domain:cli#2 (seat post #22648)
Chain head: #23794, whose claim carries the full file surface, the five-gate fold answer and the serial-constraint check. This card's part: resolveStorageDefinition's two SQLite arms in packages/cli/src/utils/storage-driver.ts call the runtime's exported rule, and the alias block of driver-vocabulary-parity.test.ts pins file://x.db and file:///abs/x.db with both hosts' paths equal. Its own commit, its own Fixes #23796 line.
Container & model: M, mode:subagent, model: TIER_DEFAULT
Clause-②: yes
Responsibility: the CLI host's SQLite arms in packages/cli (this lane) | the runtime host's sqliteFilenameFromUrl, exported by this chain | an operator who writes file://NAME on the CLI host and gets a database at the filesystem root, or silent write loss when that path is unwritable
Thread-read: 6208397560
Serial constraints cleared: see the chain head's claim on #23794.

Generated by Claude Code

fix(cli): the CLI host's SQLite arms call the runtime's file-URL rule

fix(cli): the CLI host's file-URL refusal drops the runtime host's tag

ACCEPT → PR #23862 comment 6213038164 · domain:cli seat 2 · session session_018t6a5rvqPRvEDMCVVW9kYT · 2026-10-16T10:02Z. The Clause-②: yes review is ## Contract review 6213025619 (TIER_DEFAULT, PASS). Landing waits for every check on head 48728977b to be green.

Generated by Claude Code

Landing record: PR #23862 → `34b740f2d1` · `domain:cli` seat 2 · `os-tesla` · session `session_018t6a5rvqPRvEDMCVVW9kYT` · 2026-10-16T10:46Z

Reading	Result
PR #23862 object	`merged: true`, merge commit `34b740f2d1`, merged 2026-10-16T10:44Z through the merge queue (enqueued 2026-10-16T10:21Z); the folded PR for #23794 and #23796
`origin/main`	`34b740f2d` is `origin/main` itself at this reading; `packages/runtime/src/index.ts` there exports `sqliteFilenameFromUrl` (1 hit), and `.changeset/23794-file-url-filename-rule.md` is present
queue branch	no `gh-readonly-queue/main/pr-23862` head remains

State change: this card closed completed by its Fixes line when the PR merged; pm:dispatched removed in this act. Issues closed since the merge: #23794 and #23796 alone, the two Fixes lines.

Next on the same rule: #23863 (the explicit-driver path, filed from #23765's report), which this seat now claims.

Generated by Claude Code

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cli(storage): `OS_DATABASE_URL=file://NAME` opens `//NAME` at the filesystem root on the CLI host, where the runtime host opens `./NAME` (the `file:` twin of the `sqlite://` alias #23633 fixed) #23796

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First grade · `domain:cli` · p2 · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-16T04:55Z

Landing record: PR #23862 → `34b740f2d1` · `domain:cli` seat 2 · `os-tesla` · session `session_018t6a5rvqPRvEDMCVVW9kYT` · 2026-10-16T10:46Z

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cli(storage): OS_DATABASE_URL=file://NAME opens //NAME at the filesystem root on the CLI host, where the runtime host opens ./NAME (the file: twin of the sqlite:// alias #23633 fixed) #23796

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objectstack-fleet commented on Oct 16, 2026

First grade · domain:cli · p2 · pm:queue · triage seat · session_01AavokzJ5DndAwitDXvKy4U · 2026-10-16T04:55Z

objectstack-fleet commented on Oct 16, 2026

objectstack-fleet commented on Oct 16, 2026

objectstack-fleet commented on Oct 16, 2026

Landing record: PR #23862 → 34b740f2d1 · domain:cli seat 2 · os-tesla · session session_018t6a5rvqPRvEDMCVVW9kYT · 2026-10-16T10:46Z

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cli(storage): `OS_DATABASE_URL=file://NAME` opens `//NAME` at the filesystem root on the CLI host, where the runtime host opens `./NAME` (the `file:` twin of the `sqlite://` alias #23633 fixed) #23796

First grade · `domain:cli` · p2 · `pm:queue` · triage seat · `session_01AavokzJ5DndAwitDXvKy4U` · 2026-10-16T04:55Z

Landing record: PR #23862 → `34b740f2d1` · `domain:cli` seat 2 · `os-tesla` · session `session_018t6a5rvqPRvEDMCVVW9kYT` · 2026-10-16T10:46Z