test(row320): reproduce an unsearchable inherited cwd and restore cleanup (#1816 ). Untested

docs(row 320, #1816 ): move Gladstone build receipt to queue path
docs(build): correct the citation receipt line count (#1816 )
2026-10-23 16:26:32 -05:00 · 2026-10-23 16:18:11 -05:00 · 2026-10-23 16:04:38 -05:00 · 2026-10-23 16:04:23 -05:00 · 2026-10-23 16:02:31 -05:00 · 2026-10-23 16:01:59 -05:00
12 changed files with 549 additions and 5 deletions
@@ -5411,3 +5411,15 @@ Row 299 (573, #1806, Gander, Filbert): before, the P10 band test timed a fault r
 2026-10-23T17:29:46Z | Gyro Vikunja571 sage-3542 Connections amendment | Branch gyro/editor-connections-design cut exactly from landed PRD1.17 30e6bb680; read REQ-LIB-5 in that PRD. Replaced stale J-b waits in parent and W4. Proposed W8 owns current authorized Markdown/DOCX links/backlinks list, labels, versioned refresh, leakage refusals and fixture tests. Build order under mos-1470/comment961 is W7 closed routing candidate, W8 landing, then W7 human first-real-import opening. No REQ-LIB-8 condition or acceptance change. Q234/mos-1363/S0 M1-M14 and post-10-27/MVP priority fixed. Static diff, twelve brief sections and append-only checks pass. No repo Node, tests, build, browser, queue mutation or live action. Fenton reviews after authorized docs branch push; Sage lands on approval.

 2026-10-23T17:32:37Z | Gyro sage-3544 fenton-0016 N1/N2 delta | Before: W7 Gate/final real-conversion list omit the W8 build-order cross-reference and W8 human-view filtering cites agent settings. After: both locations explicitly put W8 landing before human opening as mos-1470 build order, not acceptance; comment/tracked-deletion links are not current story links and never appear in the human Connections view regardless of agent settings. New commit atop approved 5af060fb5, no amend. Static diff and append-only checks pass. Docs only, no repo Node/tests/live action. Fenton checks only this delta.
+
+2026-10-23 | Gladstone | Gitea #1816 / Vikunja 614 hostcheck item 5 and bundle verification | Before: dpkg's correct 750 form falsely fails item 5, and two run-sheet bundle verifies require a missing repository. Draft after: exact root/mosaic/path with octal 0750 equivalence; stat/output unchanged; both verifies use cleaned-up bare scratch repos. Three additive-only test blocks, two planned mutants. Untested under Sage-3738; Sage-3740 authorizes untested branch push for static review. Queue row pending; Sage owns gate and landing.
+
+2026-10-23 | Gladstone | #1816 / Vikunja 614 scope amendment mos-1534, sage-3741 | F1 narrowed to exact 750/0750 and single spaces; F3 allows @ in absolute unit paths with unsafe-character refusals retained; F4 moves copy_tree to / after path resolution. AS_USER audit found git -C and stack-release's existing checkout cd cover the other steps. Added new unit and unreadable-cwd copy tests only. Untested under Sage's no-Node hold; no live action.
+
+2026-10-23 | Gladstone | #1816 / Vikunja 614 F5 draft (mos-1536) | Before: the run sheet omits the explicit notify decision and precheck misses a bus-start refusal. After: section 9a creates a private null-binding decision as mosaic; precheck directly reuses readNotifyConfig and private_dir, and new tests cover accepted and refused decisions. Existing fixture setup additions await Mos approval through Sage; installer unchanged. Untested under no-Node hold.
+
+2026-10-23 | Gladstone | #1816 / Vikunja 614 fixture ruling mos-1537 | Added only three setup lines each to host(t)/world(t) for the explicit null notifier decision. Existing assertions/fakes/lines intact. New install test checks decision bytes/mode preserved and missing decision remains absent. F5 missing-file fault removes the setup file. Untested under Sage's hold; separate follow-up atop 33950cf9b.
+
+2026-10-23 | Gladstone | #1816 / Vikunja 614 F6 and notify parent (mos-1537) | Before: the run sheet's copy check lacks its required CLI wrapper; mkdir -p -m does not guarantee the notify parent mode. After: a separately Mos-gated wrapper --create step follows install and precedes check, as mosaic from cwd /; section 9a explicitly creates both notify directories at 0700. Docs only, no live action; Node/tests still held.
+
+2026-10-23 | Gladstone | Row320 / #1816 first review CHANGES (morgana-0217) | Reviewer run: hostcheck19/19, unit47/47, install24/24, copy17/18; seven of eight mutants killed, M4 survived because both base/mutant failed only cleanup. Fixed this row's F4 test to enter cwd then chmod000, assert no read/search, pass an absolute outside bundle, and restore0700 in finally. Existing tests/setup and production scripts unchanged. Correction untested locally pending Morgana's focused rerun; no acceptance claim.
@@ -0,0 +1,304 @@
+# Hostcheck item 5 and bundle verification (Gitea #1816, Vikunja 614)
+
+Queue row pending from Sage. Owner Gladstone, reviewer Morgana, gate/landing Sage.
+Base: fetched origin/refactor 93694c5185d0a7f989d2fe78fb620e44599b744e;
+branch gladstone/hostcheck-item5. Scope: mos-1531 / ops-0256, sage-3738 and sage-3740.
+
+## Before and after
+
+Ubuntu 24.04 dpkg 1.22.6ubuntu6.6 prints `root mosaic 750 /usr/bin/bwrap`.
+Item 5 compared the literal `0750`, falsely refusing a correctly configured host;
+--enforce would unload the profile, close bwrap and record DRIFT.
+The candidate accepts exactly four fields, root, mosaic, octal 0750, and $BWRAP.
+`0*750` represents all octal spellings numerically equal to 0750 without arithmetic
+conversion/overflow. Horizontal whitespace separates fields; extra fields and
+embedded newlines refuse. Owner, group and path remain exact. The stat comparison
+and existing output strings remain unchanged. Only the item 5 comment also changes.
+
+The two release-transport bundle checks previously ran outside any repository.
+Each now creates an empty bare scratch repository, verifies with git -C, and removes
+the scratch directory using an EXIT trap. A failure exits the shell before cloning
+or fetching. No other run-sheet text changes.
+
+## Tests and mutants
+
+Only packages/cli/tests/case1-hostcheck.test.mjs changes among tests, by appending
+three new test() blocks; the existing passing 0750 fake and failing fake are intact.
+The pass test exercises 750, 0750 and 000750. The enforce test checks no unload,
+chown, chmod, DRIFT or hostcheck log for 750. Refusals independently cover 755,
+0755, 4750, 75, 7500, 075, non-octal strings, other owner/group/path, missing path,
+extra fields, multiple lines, blank/empty output and a missing fixture file.
+
+| Mutant | Change | Killer | Result |
+|---|---|---|---|
+| M1 | Restore the old literal root mosaic 0750 comparison (drop 750) | new check pass test | Unrun |
+| M2 | Accept any mode while preserving owner/group/path | new refusal test | Unrun |
+
+Mutant procedure: preserve script bytes, assert one replacement, run the named
+killer alone, require failure for its intended assertion, restore in finally and
+check the original bytes/hash. Run the original targeted file again after restore.
+
+## Verification status
+
+Untested. Sage-3738 prohibits all Node until CLEAR because the joint full gate
+runs alone. Sage-3740 explicitly directs pushing this untested build for Morgana's
+static review before CLEAR. This supersedes test-first execution for this draft;
+no Node, tests, node --check, full suites or live-host operations have run.
+Queue next refused linked-worktree execution; Sage owns queue creation/movement.
+Push only gladstone/*, with MOSAIC_GITEA_CREDENTIAL_FILE unset; no amend/force.
+
+Static draft receipt: `git diff --check` passed. Test-file numstat against the
+base is `46 0 packages/cli/tests/case1-hostcheck.test.mjs` (added/deleted).
+
+## Scope and implementation amendment (mos-1534, sage-3741)
+
+F1 correction: Sage requires precisely `750` or `0750` and exactly single spaces,
+so the candidate now uses `0?750` and literal spaces. It refuses 00750/000750,
+a doubled space and a tab. This supersedes the initial numeric-equivalence design
+above. Only this row's own appended tests change; no base test line changes.
+
+F3: case2-unit.sh plain() adds @. abs_plain is its only caller and requires an
+absolute normalized path, so @ cannot become an ExecStart prefix. In sed @ is
+ordinary replacement text (the delimiter is |); &, backslash and | still refuse.
+Environment=MOSAIC_CLAUDE_BIN carries @ literally; the parser compares the complete
+value, with no shell evaluation. @anthropic-ai also cannot match the residual
+@[A-Z_]+@ token check. Tests render/reinstall with a regular executable under
+@anthropic-ai, checking Environment and the new copy's WorkingDirectory. Since a
+nonroot test cannot create root ownership, a stat fake models root:0755 only for
+that file and its ancestor chain. The real file type/executable checks, render,
+installed-unit parser, and all other stat calls remain active. A separate block
+refuses space, %, $, both quote characters, backslash, & and |.
+
+F4: copy_tree changes to / before archive/npm/find, after all its path arguments
+are absolute. copy_bundle retains its existing relative-bundle resolution before
+calling copy_tree. Checkout copies have absolute REPO and COPIES too. Source-only
+use from stack-release.sh changes no cwd because copy_tree is not called there.
+Audit of every AS_USER command in stack-upgrade.sh: fetch and merge use git -C;
+plan, gate, revert, confirm-rollback, stage (activate/rollback), confirm and rehearse
+invoke stack-release.sh, which changes to its checkout at line 34. No other
+AS_USER command needs a fix. The new test enters a directory mode 0111, verifies
+that ls cannot read it, then runs both a relative-bundle copy and checkout copy,
+asserting success, no find restore error, and an immutable completed copy.
+
+Additional mutants (unrun under the same no-Node hold):
+
+| Mutant | Change | Killer | Result |
+|---|---|---|---|
+| M3 | Drop @ from plain() | new factory scoped Claude-path test | Unrun |
+| M4 | Remove copy_tree's cd / | new unreadable-cwd copy test | Unrun |
+
+All four fixes remain untested. Follow-up is an additive commit on the pushed
+branch, per sage-3741, with no amend or force. Morgana's static F1/F2 read of
+f30c74b12 was CLEAN (morgana-0205); F3/F4 and execution remain open.
+
+Morgana N1: the outer bundle-verification failure now prints
+`STOP: bundle verify failed; do not continue` instead of exiting the interactive
+root shell. The subshell still returns failure and cleans up. This follows the
+sheet's human read-and-stop convention and avoids sending remaining pasted lines
+to a parent shell after exiting sudo -i. Inner mktemp failure still exits only the
+subshell. This supersedes the initial outer-shell failure behavior noted above.
+
+## File numstat against 93694c518 (added / deleted)
+
+| File | Added | Deleted |
+|---|---:|---:|
+| `BUILD-LOG.md` | 4 | 0 |
+| `agents/gladstone/work/hostcheck-item5/BUILD.md` | 114 | 0 |
+| `docs/SESSIONS.md` | 1 | 0 |
+| `docs/guides/host-run-sheet.md` | 12 | 2 |
+| `packages/cli/tests/case1-hostcheck.test.mjs` | 48 | 0 |
+| `packages/cli/tests/case2-unit.test.mjs` | 29 | 0 |
+| `packages/cli/tests/stack-copy.test.mjs` | 16 | 0 |
+| `scripts/case1-hostcheck.sh` | 2 | 2 |
+| `scripts/case2-unit.sh` | 1 | 1 |
+| `scripts/stack-copy.sh` | 3 | 0 |
+
+## F5 (mos-1536 / ops-0260): explicit notifier decision
+
+Before: no run-sheet step creates the required notifier decision, and precheck
+accepts a host whose bus will refuse missing notify.json. After: section 9a
+requires the mosaic user to create its business notify directory at 0700 and an
+explicit {"notifyVersion": 1, "binding": null} file at 0600 before section 10.
+The shell runs with cwd / and umask 077; noclobber refuses an existing decision.
+Named binding is explicitly a later per-host choice requiring Mos's go.
+case2-install.sh is unchanged and makes no silent default.
+
+case2-precheck.sh's existing facts helper dynamically imports readNotifyConfig
+from cli.mjs and calls it directly. File type, uid, exact 0600 mode, JSON keys,
+version and binding-name validation therefore stay identical to the bus. The
+shell checks the business notify directory with existing private_dir (same uid,
+not a symlink, exactly 0700) and prints the new notifier config line. No notifier
+is started and no configuration is written. Tests append pass cases for null and
+a valid named binding, and refusal cases for missing file, 0644, 0755 directory,
+extra key, malformed JSON, invalid binding/version and a symlinked file.
+
+M5 (unrun): remove the notifier shell check, including its refusal branch; the
+new notifier refusal test must fail. Also include Morgana's F3 negative mutant
+M3b (allow $ in plain), killed by the new unsafe-character test.
+
+Existing positive precheck tests need an explicit notify fixture. Approval
+requested via Sage in gladstone-0006/-0007 for minimal setup-only additions to
+case2-unit.test.mjs host(t) and case2-install.test.mjs world(t); assertions remain
+unchanged. Those additions are not yet applied. Correction to gladstone-0007:
+case1-accept.test.mjs also names case2-precheck.sh, but uses a stand-in; it does
+not execute the changed script and needs no fixture amendment.
+
+Execution remains held by Sage: no Node/tests run. Morgana-0207 static F1-F4
+verdict on a75532db1 is CLEAN; execution and F5 review are still open.
+
+F5 acceptance from mos-1536 (for review):
+1. Before section 10, as mosaic, explicitly create <dataRoot>/notify/<business>
+   at 0700 and notify.json at 0600 with default binding null; a later named
+   binding needs Mos's go. Do not make case2-install.sh write it.
+2. Precheck must refuse missing file, non-0600 file, directory looser than 0700
+   and a document outside the CLI's exact shape. Reuse/match cli.mjs validation,
+   and name the new line in this run-sheet step's Precheck entry.
+3. Append-only test blocks cover pass, missing, 0644, 0755 dir, extra key; record
+   a skip-check mutant, the touched test file and its numstat.
+4. F3/F4 precede F5, each follow-up commit stays on gladstone/hostcheck-item5;
+   send pushes to Sage/Morgana with Mos cc. No Node until Sage CLEAR.
+
+Static F5 draft receipt: git diff --check passed. Existing fixture approvals
+remain pending; F5's new pass test creates its own explicit decisions. No claim
+that the old positive precheck tests pass without the pending setup changes.
+
+## F5 candidate file numstat against 93694c518 (added / deleted)
+
+| File | Added | Deleted |
+|---|---:|---:|
+| `BUILD-LOG.md` | 6 | 0 |
+| `agents/gladstone/work/hostcheck-item5/BUILD.md` | 179 | 0 |
+| `docs/SESSIONS.md` | 1 | 0 |
+| `docs/guides/host-run-sheet.md` | 34 | 2 |
+| `packages/cli/tests/case1-hostcheck.test.mjs` | 48 | 0 |
+| `packages/cli/tests/case2-unit.test.mjs` | 65 | 0 |
+| `packages/cli/tests/stack-copy.test.mjs` | 16 | 0 |
+| `scripts/case1-hostcheck.sh` | 2 | 2 |
+| `scripts/case2-precheck.sh` | 19 | 0 |
+| `scripts/case2-unit.sh` | 1 | 1 |
+| `scripts/stack-copy.sh` | 3 | 0 |
+
+## Fixture approval and separate follow-up (mos-1537)
+
+Mos approved exactly setup-only additions to case2-unit.test.mjs host(t) and
+case2-install.test.mjs world(t): each gets three added lines for a 0700
+notify/acme directory and 0600 notify.json with {"notifyVersion":1,"binding":null}.
+No existing line, fake or assertion changes or is deleted. F5's missing-file
+negative case removes the file after setup, so the new default cannot mask it.
+The newly appended install test checks preserved bytes and mode after success,
+and separately removes the decision before install and checks it stays absent.
+case1-accept.test.mjs is unchanged. This follow-up is committed separately on
+33950cf9b as directed, with no amend. No Node/tests run; suite claims remain open.
+Morgana-0211 found F5 source/run sheet CLEAN statically; the setup prerequisite B1
+is addressed by this approved fixture patch, pending execution.
+
+Additional planned mutants from Morgana-0211 (unrun): M5b drops private_dir,
+killed by the directory fault; M5c prints NOTIFY ok unconditionally, killed by
+the document faults. Existing test preservation is checked by git diff showing
+only additions (numstat below).
+
+Fixture follow-up numstat: case2-unit.test.mjs +3/-0,
+case2-install.test.mjs +18/-0. Against the original base: case1-hostcheck.test.mjs
+48/-0, case2-unit.test.mjs +68/-0, stack-copy.test.mjs +16/-0,
+case2-install.test.mjs +18/-0. git diff --check passed.
+
+## F6 and notify parent correction (mos-1537 / ops-0261)
+
+Before: install creates a copy but no human CLI wrapper; the sheet's
+stack-copy.sh check --units external therefore fails even with correct units.
+After: the sheet explicitly places a wrapper step after successful install and
+before that check. On Mos's separate live-step go, mosaic changes cwd to /,
+creates $HOME/.npm-global/bin if absent, then invokes its clone's stack-copy.sh
+wrapper <sha> --create. Existing wrappers refuse and require review; install is
+unchanged. This is documentation of a gated host action, not execution of it.
+There are no tests pinning these sheet steps to adjust.
+
+Section 9a now explicitly creates/chmods <dataRoot>/notify and then its business
+leaf, each 0700. This addresses ops-0261's observation that mkdir -p -m only
+controls the leaf. The existing umask 077 remains. All exits are inside the
+unprivileged shell, so no failure exits the operator's interactive root shell.
+
+Static receipt: git diff --check passed. No Node, tests or live action. F6 and
+this parent-directory documentation correction are a separate commit after the
+approved fixture-only 5fd2328b6 follow-up. Reviewer should retain the earlier
+F1-F5 source verdicts and inspect this delta. Queue row still pending from Sage.
+
+## F6 candidate file numstat against 93694c518 (added / deleted)
+
+| File | Added | Deleted |
+|---|---:|---:|
+| `BUILD-LOG.md` | 10 | 0 |
+| `agents/gladstone/work/hostcheck-item5/BUILD.md` | 241 | 0 |
+| `docs/SESSIONS.md` | 1 | 0 |
+| `docs/guides/host-run-sheet.md` | 51 | 2 |
+| `packages/cli/tests/case1-hostcheck.test.mjs` | 48 | 0 |
+| `packages/cli/tests/case2-install.test.mjs` | 18 | 0 |
+| `packages/cli/tests/case2-unit.test.mjs` | 68 | 0 |
+| `packages/cli/tests/stack-copy.test.mjs` | 16 | 0 |
+| `scripts/case1-hostcheck.sh` | 2 | 2 |
+| `scripts/case2-precheck.sh` | 19 | 0 |
+| `scripts/case2-unit.sh` | 1 | 1 |
+| `scripts/stack-copy.sh` | 3 | 0 |
+
+## F6 gate citation (sage-3747)
+
+Added scripts/stack-copy.sh:3 to the F6 wrapper step's explicit Mos-go requirement.
+This is doc-only; commands and tests are unchanged. Sage ruled the delete-after-
+setup missing-file negative meets mos-1537, so no fixture change is needed.
+Morgana-0213 found the fixture/F6 deltas CLEAN statically. No Node/tests run;
+Morgana's eventual run waits for Sage's row and CLEAR after the 220+216 landing.
+Numstat for this follow-up: host-run-sheet.md +1/-1; BUILD.md +9/-0.
+Static receipt: git diff --check passed.
+
+Correction: 0f3d874d4 added 10 BUILD.md lines, not 9; the git numstat is authoritative.
+
+## First review run and F4 test correction (morgana-0217)
+
+Morgana ran af201b4a9 (6fa47e07d only relocates this file) under her authorized
+slot with timeout -k 10 and TMPDIR under /mnt/storage/scratch/tmp. Receipts:
+/mnt/storage/scratch/morgana-g320-out/base-summary.txt and mutants-summary.txt.
+
+| Targeted file | Passed | Failed |
+|---|---:|---:|
+| case1-hostcheck.test.mjs | 19 | 0 |
+| case2-unit.test.mjs | 47 | 0 |
+| case2-install.test.mjs | 24 | 0 |
+| stack-copy.test.mjs | 17 | 1 |
+
+Seven of eight mutants were killed: M1 literal0750, M2 anymode, M3a drop@,
+M3b allow$, M5 drop shell block, M5b drop private_dir, M5c always NOTIFY ok.
+M4 drop cd / SURVIVED: base and mutant both failed only setup's cleanup hook.
+This is a test defect, not a green acceptance result. The 0111 cwd retained
+search permission and did not reproduce the inaccessible inherited cwd. It
+also blocked setup's chmod -R cleanup because the directory remained unreadable.
+
+B1 correction touches only this row's appended F4 test: the child shell enters
+an initially searchable directory, chmods it 000, checks both ! -r and ! -x, then
+execs stack-copy. The parent asserts all read/search bits remain cleared. The
+bundle now lives outside cwd and is passed absolutely, matching the real flow;
+existing row232 coverage still tests relative bundles from an accessible cwd.
+Both bundle and checkout paths remain covered.
+B2 correction: each child run/assertion sequence has a finally that restores the
+cwd to0700 before setup's existing cleanup. No old setup/test lines change.
+Production scripts are unchanged; the cd / fix remains correct by static review.
+
+Correction is untested locally: no builder Node/test CLEAR was given. Morgana
+will rerun stack-copy whole, M4 and residue cleanup on the pushed correction;
+other files need no rerun unless changed. git diff --check passed.
+
+## F4 corrected candidate numstat against 93694c518 (added / deleted)
+
+| File | Added | Deleted |
+|---|---:|---:|
+| `BUILD-LOG.md` | 12 | 0 |
+| `agents/gladstone/work/queue-320/BUILD.md` | 304 | 0 |
+| `docs/SESSIONS.md` | 1 | 0 |
+| `docs/guides/host-run-sheet.md` | 51 | 2 |
+| `packages/cli/tests/case1-hostcheck.test.mjs` | 48 | 0 |
+| `packages/cli/tests/case2-install.test.mjs` | 18 | 0 |
+| `packages/cli/tests/case2-unit.test.mjs` | 68 | 0 |
+| `packages/cli/tests/stack-copy.test.mjs` | 22 | 0 |
+| `scripts/case1-hostcheck.sh` | 2 | 2 |
+| `scripts/case2-precheck.sh` | 19 | 0 |
+| `scripts/case2-unit.sh` | 1 | 1 |
+| `scripts/stack-copy.sh` | 3 | 0 |
@@ -1593,3 +1593,4 @@ are never rewritten or removed; corrections are new entries.
 2026-10-23T17:48:43Z | Scrooge (629b6cd3) | Row 252 Console inbox Approve and Deny (#1753) | Rebased onto 306 landing as 580037105 (range-diff all =), slot run bus 907/0 webui 410/0 cli 943/0, in-review revs 3608/3609, Webby r1 APPROVE, J1-J19 specs to Sage; Sage landed 45ea3fa0d (done rev 3616). Part 1 mutant results were never in BUILD.md; they went to Sage by T3 (scrooge-0252-mutant-specs).
 2026-10-23 | Sage (1ef1e4f8) | Rows 308 and 252 landings, 571 Connections design amendment, Vikunja 597 | 308 (PRD 1.17, #1815) landed 30e6bb680 and 252 (#1753) landed 45ea3fa0d (replay of 580037105 onto 30e6bb680, range-diff all =), each after a full gate on the landed tree (252 also J1-J19, J11c and J18 equivalent); Gyro's 571 amendment (Fenton APPROVE) landed e8bb13df8; Vikunja 570, 435 and 597 done, canonical webui esbuild 0.28.2; queue revs 3589-3616 committed 59f013247
 2026-10-23 | Sage (1ef1e4f8) | Vikunja 571 W build rows; rows 13, 42, 257 and 289 check | Filed the design's ten W rows as queue rows 309-318 (revs 3617-3626, owners set to unassigned 3627-3636, queue commit 293b42fee pushed); Vikunja 571 done (comment 994). Row 13's candidate fd72d2689 is on refactor, gate is Monday's row 7 ledger run; 42 paused under mos-1184; 257 post-v1; 289 waits on 214 and 288. Slot released 17:56Z.
+2026-10-23 | Gladstone (433058fc-9cea-46e3-8554-6ddefb312762, Codex gpt-6.1-sol) | #1816 / Vikunja 614, mos-1531 | Built hostcheck octal-mode fix and two bare-scratch bundle verifies on gladstone/hostcheck-item5 from 93694c518. Three append-only test blocks; Node/tests held by Sage-3738, untested push authorized sage-3740. Queue number pending; Morgana static review, Sage gate/landing.
@@ -189,7 +189,12 @@ First install:
 ```sh
 # Copy the bundle in, then check it before anything reads it.
 echo "<bundle sha256>  /root/<sha>.bundle" | sha256sum -c -
-git bundle verify /root/<sha>.bundle
+(
+  bundle_check="$(mktemp -d)" || exit 1
+  trap 'rm -rf "$bundle_check"' EXIT
+  git init -q --bare "$bundle_check" &&
+    git -C "$bundle_check" bundle verify /root/<sha>.bundle
+) || echo "STOP: bundle verify failed; do not continue"

 # Root's checkout. stack-upgrade.sh and case2-unit.sh run from here, never from a copy.
 git clone -q -b refactor /root/<sha>.bundle /root/mosaic-stack
@@ -206,7 +211,12 @@ Each upgrade, before `stack-upgrade.sh upgrade`:

 ```sh
 echo "<bundle sha256>  /root/<sha>.bundle" | sha256sum -c -
-git bundle verify /root/<sha>.bundle
+(
+  bundle_check="$(mktemp -d)" || exit 1
+  trap 'rm -rf "$bundle_check"' EXIT
+  git init -q --bare "$bundle_check" &&
+    git -C "$bundle_check" bundle verify /root/<sha>.bundle
+) || echo "STOP: bundle verify failed; do not continue"
 git -C /root/mosaic-stack fetch -q /root/<sha>.bundle refs/heads/refactor:refs/remotes/origin/refactor
 git -C /root/mosaic-stack checkout -q --detach <sha>
 install -o mosaic -g mosaic -m 0600 /root/<sha>.bundle /srv/mosaic/incoming/<sha>.bundle
@@ -231,6 +241,21 @@ When a run doesn't exit 0, send Mos the exit and the last lines of `/var/log/mos
  the old copy. The next run refuses `args-differ`, and a render from that file would put the old copy back.
  Move the file the result line names into place with `mv -f`. The two differ only in the `--copy` value.

+After `case2-install.sh` succeeds, create the human CLI wrapper before running
+`stack-copy.sh check --units external`. Creating this wrapper is a separate live
+step requiring Mos's go (`scripts/stack-copy.sh:3`); the install does not create it. Run only on that go:
+
+```sh
+sudo -u mosaic -H /bin/sh <<'MOSAIC_WRAPPER'
+cd / || exit 1
+mkdir -p -- "$HOME/.npm-global/bin" || exit 1
+"$HOME/src/mosaic-stack/scripts/stack-copy.sh" wrapper <sha> --create
+MOSAIC_WRAPPER
+```
+
+`--create` refuses an existing wrapper; stop and review it rather than replacing
+it. The wrapper must name the same `<sha>` copy as the units.
+
 Precheck lines: none. Root's checkout at `<sha>` and the stack's user's clone: precheck line missing.
 After install, `stack-copy.sh check --units external` reads the copy the units run.

@@ -285,6 +310,30 @@ The installer key, `<configDir>/secrets/hosts/<business>/<hostId>/installer`, is
 Enrollment (section 8) writes it under the enrolling stack's config directory and deletes it when the host
 leaves.

+## 9a. Notifier decision, before starting units
+
+Make the explicit per-host decision before section 10: the default below is
+`binding: null`, so the bus runs without DMs. A named binding is a later per-host
+choice that needs Mos's go. The installer does not make this decision or write
+this file. Replace `<dataRoot>` with the configured data root and `<business>`
+with this host's business id. If the file already exists, stop and review the
+existing decision; this command refuses to overwrite it.
+
+```sh
+sudo -u mosaic -H /bin/sh <<'MOSAIC_NOTIFY'
+cd / || exit 1
+umask 077
+notify_root='<dataRoot>/notify'
+notify_dir="$notify_root/<business>"
+mkdir -p -m 0700 -- "$notify_root" && chmod 0700 -- "$notify_root" || exit 1
+mkdir -p -m 0700 -- "$notify_dir" && chmod 0700 -- "$notify_dir" || exit 1
+(set -C; printf '%s\n' '{"notifyVersion": 1, "binding": null}' > "$notify_dir/notify.json") || exit 1
+chmod 0600 -- "$notify_dir/notify.json"
+MOSAIC_NOTIFY
+```
+
+Precheck line: `ok      notifier config <dataRoot>/notify/<business>/notify.json validates (directory 0700, file 0600)`.
+
 ## 10. Console start

 None by hand. I2's `case2-unit.sh` enables both units, starts the bus, then the Console (Q189, mos-1122).
@@ -333,3 +333,51 @@ test("row 240 pins and usage: the shipped pins are r6's, the script reads the pi
    assert.deepEqual([u.status, u.stderr], [2, "hostcheck: refusing: run it as root\n"]);
  }
 });
+
+test("Vikunja 614 check: item 5 accepts dpkg's bare octal mode and leading-zero equivalents", (t) => {
+  for (const mode of ["750", "0750"]) {
+    const h = host(t);
+    put(join(h.hc, "statoverride"), `root mosaic ${mode} /usr/bin/bwrap\n`);
+    const r = run(h, "--check");
+    assert.equal(r.status, 0, r.out + r.err);
+    assert.deepEqual(fails(r), []);
+    assert.ok(r.lines.some((line) => line.startsWith("ok 5 ")), r.out);
+  }
+});
+
+test("Vikunja 614 enforce: dpkg's bare 750 leaves bwrap open and writes no DRIFT", (t) => {
+  const h = host(t);
+  put(join(h.hc, "statoverride"), "root mosaic 750 /usr/bin/bwrap\n");
+  const r = run(h, "--enforce");
+  assert.equal(r.status, 0, r.out + r.err);
+  assert.deepEqual(fails(r), []);
+  assert.equal(r.lines.at(-1), "hostcheck: all seven hold");
+  assert.deepEqual([calls(h, "apparmor_parser"), calls(h, "chown"), calls(h, "chmod")], [[], [], []]);
+  assert.equal(existsSync(drift(h)), false);
+  assert.equal(existsSync(hlog(h)), false);
+});
+
+test("Vikunja 614 check: item 5 refuses other modes, owners, groups, paths and malformed overrides", (t) => {
+  const overrides = [
+    ...["755", "0755", "4750", "75", "7500", "075", "00750", "000750", "0780", "8", "0o750", "+750", "-750", "7x0", "750+0", ""].map((mode) => `root mosaic ${mode} /usr/bin/bwrap\n`),
+    "root  mosaic 750 /usr/bin/bwrap\n",
+    "root\tmosaic 750 /usr/bin/bwrap\n",
+    "mosaic mosaic 750 /usr/bin/bwrap\n",
+    "root root 750 /usr/bin/bwrap\n",
+    "root mosaic 750 /usr/bin/other\n",
+    "root mosaic 750 /usr/bin/bwrap extra\n",
+    "root mosaic 750\n",
+    "root mosaic 750 /usr/bin/bwrap\nroot mosaic 750 /usr/bin/bwrap\n",
+    "\n",
+    "",
+    null,
+  ];
+  for (const override of overrides) {
+    const h = host(t);
+    if (override === null) rmSync(join(h.hc, "statoverride"));
+    else put(join(h.hc, "statoverride"), override);
+    const r = run(h, "--check");
+    assert.equal(r.status, 1, `${JSON.stringify(override)}: ${r.out}${r.err}`);
+    assert.deepEqual(fails(r).map((line) => line.split(" ")[1]), ["5"], r.out);
+  }
+});
@@ -84,6 +84,9 @@ mkdir -p "$4/$2/scripts" && : >"$4/$2/scripts/mosaic" && echo "copied: $4/$2"`);
  mkdirSync(join(sys, "kernel"), { recursive: true });
  writeFileSync(join(sys, "net", "ipv4", "ip_unprivileged_port_start"), "1024\n");
  writeFileSync(join(sys, "kernel", "apparmor_restrict_unprivileged_userns"), "1\n");
+  const notify = join(home, ".mosaic-dev", "notify", "acme");
+  mkdirSync(notify, { recursive: true, mode: 0o700 });
+  writeFileSync(join(notify, "notify.json"), '{"notifyVersion":1,"binding":null}\n', { mode: 0o600 });
  return {
    root, home, configDir, secrets, input, staging, bin, log, units, sys, doc,
    config: join(configDir, "config.json"),
@@ -399,3 +402,18 @@ test("--library-status takes no --profile", (t) => {
  const r = precheck(x, { args: ["--business", "acme", "--library-status", "--profile", "library"] });
  assert.equal(r.code, 4, r.out);
 });
+
+test("Vikunja 614: install preserves the explicit notifier decision bytes and mode and creates none when absent", (t) => {
+  const x = world(t);
+  const file = join(x.dataRoot, "notify", "acme", "notify.json");
+  const before = readFileSync(file), beforeMode = mode(file);
+  const r = install(x);
+  assert.equal(r.code, 0, r.out);
+  assert.deepEqual(readFileSync(file), before);
+  assert.equal(mode(file), beforeMode);
+  const absent = world(t), missing = join(absent.dataRoot, "notify", "acme", "notify.json");
+  rmSync(missing);
+  const fresh = install(absent);
+  assert.equal(fresh.code, 0, fresh.out);
+  assert.equal(existsSync(missing), false);
+});
@@ -626,6 +626,9 @@ function host(t, { roles = {}, vars = {}, keyFile = `ZAI_API_KEY=${FIXTURE_KEY}\
  script(join(bin, "id"), `if [ "$1" = -G ]; then echo "\${CASE2_TEST_GROUPS:-${GID}}"; else exec /usr/bin/id "$@"; fi`);
  script(join(bin, "node"), `if [ "$1" = --version ]; then echo "\${CASE2_TEST_NODE:-v24.3.0}"; exit 0; fi\nexec '${process.execPath}' "$@"`);
  script(join(bin, "bwrap"), `exit "\${CASE2_TEST_BWRAP:-0}"`);
+  const notify = join(home, ".mosaic-dev", "notify", "acme");
+  mkdirSync(notify, { recursive: true, mode: 0o700 });
+  writeFileSync(join(notify, "notify.json"), '{"notifyVersion":1,"binding":null}\n', { mode: 0o600 });
  return { root, home, configDir, config, secrets, units, sys, bin, dataRoot: join(home, ".mosaic-dev") };
 }

@@ -872,3 +875,68 @@ test("inside a session's sandbox a bind below 1024 fails with EACCES, and a bind
  assert.equal(bindIn(LOW_PORT), "EACCES");
  assert.equal(bindIn(high), "bound");
 });
+
+test("Vikunja 614 factory: scoped @anthropic-ai Claude path renders and passes installed read-back", (t) => {
+  const h = hub(t);
+  const claude = script(join(h.root, "opt", "claude-pin", "node_modules", "@anthropic-ai", "claude-code", "bin", "claude.exe"), "exit 0");
+  // The suite runs unprivileged. Model root ownership for this regular executable
+  // and its ancestors only; file type/executable checks and both unit readers are real.
+  const ancestors = [];
+  for (let p = claude; p !== "/"; p = dirname(p)) ancestors.push(p);
+  script(join(h.bin, "stat"), `if [ "$1" = -c ] && [ "$3" = -- ]; then
+  case "$4" in ${ancestors.map((p) => JSON.stringify(p)).join("|")})
+    case "$2" in %u) echo 0; exit ;; %a) echo 755; exit ;; esac ;;
+  esac
+fi
+exec /usr/bin/stat "$@"`);
+  const first = unit(h, { profile: "factory", extra: ["--claude", claude] });
+  assert.equal(first.code, 0, first.out + first.err);
+  assert.ok(lines(read(busFile(h)), "Environment").includes(`MOSAIC_CLAUDE_BIN=${claude}`));
+  const again = unit(h, { profile: "factory", copy: COPY_B, extra: ["--claude", claude] });
+  assert.equal(again.code, 0, again.out + again.err);
+  assert.ok(lines(read(busFile(h)), "Environment").includes(`MOSAIC_CLAUDE_BIN=${claude}`));
+  assert.deepEqual(lines(read(busFile(h)), "WorkingDirectory"), [copyDir(h, COPY_B)]);
+});
+
+test("Vikunja 614 factory: plain paths still refuse every named unsafe character", (t) => {
+  const h = hub(t);
+  for (const char of [" ", "%", "$", "\"", "'", "\\", "&", "|"]) {
+    refuses(unit(h, { profile: "factory", extra: ["--claude", `/opt/claude${char}bin`] }), /--claude contains a character the unit cannot carry/);
+  }
+});
+
+test("Vikunja 614 precheck: explicit null and named notifier decisions pass", (t) => {
+  for (const binding of [null, "host-notify"]) {
+    const x = host(t);
+    const dir = join(x.dataRoot, "notify", "acme");
+    mkdirSync(dir, { recursive: true, mode: 0o700 });
+    writeFileSync(join(dir, "notify.json"), JSON.stringify({ notifyVersion: 1, binding }), { mode: 0o600 });
+    const r = precheck(x);
+    assert.equal(r.code, 0, r.out);
+    assert.ok(r.out.includes(`ok      notifier config ${dir}/notify.json validates (directory 0700, file 0600)`), r.out);
+  }
+});
+
+test("Vikunja 614 precheck: notifier config refuses missing, public, malformed and extra-key decisions", (t) => {
+  for (const fault of ["missing", "mode", "directory", "extra", "json", "binding", "version", "symlink"]) {
+    const x = host(t);
+    const dir = join(x.dataRoot, "notify", "acme"), file = join(dir, "notify.json");
+    mkdirSync(dir, { recursive: true, mode: 0o700 });
+    writeFileSync(file, '{"notifyVersion":1,"binding":null}\n', { mode: 0o600 });
+    if (fault === "missing") rmSync(file);
+    if (fault === "mode") chmodSync(file, 0o644);
+    if (fault === "directory") chmodSync(dir, 0o755);
+    if (fault === "extra") writeFileSync(file, '{"notifyVersion":1,"binding":null,"extra":true}\n');
+    if (fault === "json") writeFileSync(file, '{bad json\n');
+    if (fault === "binding") writeFileSync(file, '{"notifyVersion":1,"binding":"bad binding"}\n');
+    if (fault === "version") writeFileSync(file, '{"notifyVersion":2,"binding":null}\n');
+    if (fault === "symlink") {
+      const target = join(dir, "target.json");
+      writeFileSync(target, readFileSync(file), { mode: 0o600 });
+      rmSync(file); symlinkSync(target, file);
+    }
+    const r = precheck(x);
+    assert.equal(r.code, 1, `${fault}: ${r.out}`);
+    assert.match(r.out, /REFUSED notifier config:/, `${fault}: ${r.out}`);
+  }
+});
@@ -347,3 +347,25 @@ test('row 232: check --units external reads the system units, the default reads
  rmSync(argv);
 }
 });
+
+test('Vikunja 614: bundle and checkout copy leave an unreadable caller directory before find',t=>{
+ const s=setup(t),cwd=join(s.root,'unreadable');mkdirSync(cwd);
+ const bundle=join(s.root,'release.bundle');git(s.repo,'bundle','create','-q',bundle,'refactor');
+ // Enter while searchable, then reproduce a cwd inherited across a uid drop:
+ // the caller can neither read nor search it. Absolute bundle lookup must work.
+ const enter='cd "$1" && chmod 000 . && [ ! -r . ] && [ ! -x . ] && shift && exec "$@"';
+ for(const [name,args] of [['bundle',['copy','--bundle',bundle,s.id]],['checkout',['copy',s.id]]]){
+  const copies=join(s.root,`copies-${name}`);
+  try{
+   const r=spawnSync('/bin/sh',['-c',enter,'stack-copy-cwd',cwd,join(s.repo,'scripts','stack-copy.sh'),...args,'--copies',copies],{env:s.env,encoding:'utf8',timeout:30000});
+   assert.equal(statSync(cwd).mode&0o555,0,'the inherited cwd is neither readable nor searchable');
+   assert.equal(r.status,0,r.stdout+r.stderr);
+   assert.doesNotMatch(r.stderr,/Failed to (restore initial working|change) directory|Permission denied/);
+   assert.ok(existsSync(join(copies,s.id,'scripts','mosaic')));
+   assert.equal(statSync(join(copies,s.id)).mode&0o777,0o555);
+  }finally{
+   // Restore even after a failed assertion/mutant, before setup's recursive cleanup.
+   chmodSync(cwd,0o700);
+  }
+ }
+});
@@ -16,7 +16,7 @@
 #   3. `grep -rlw bwrap /etc/apparmor.d` lists that one file and nothing else.
 #   4. A bwrap child started as mosaic under the units' no-new-privs reads the label
 #      `bwrap//&unpriv_bwrap (enforce)`, exactly.
-#   5. The statoverride on /usr/bin/bwrap reads `root mosaic 0750`, and stat agrees.
+#   5. The statoverride on /usr/bin/bwrap has root mosaic and octal mode 0750 (750 accepted), and stat agrees.
 #   6. kernel.apparmor_restrict_unprivileged_userns and fs.protected_hardlinks are 1.
 #   7. net.ipv4.ip_unprivileged_port_start is above the Console's --port in the installed unit, or
 #      above 1023, the highest --port case2-unit.sh takes, while no unit is installed.
@@ -114,7 +114,7 @@ item5() {
    local so st
    so="$(dpkg-statoverride --list "$BWRAP" 2>/dev/null)"
    st="$(stat -c '%U %G %a' "$ROOT$BWRAP" 2>/dev/null)"
-    [ "$so" = "root mosaic 0750 $BWRAP" ] || { fail "5 the statoverride on $BWRAP reads '$so', not 'root mosaic 0750'"; return; }
+    [[ "$so" =~ ^root\ mosaic\ 0?750\ "$BWRAP"$ ]] || { fail "5 the statoverride on $BWRAP reads '$so', not 'root mosaic 0750'"; return; }
    [ "$st" = "root mosaic 750" ] || { fail "5 $BWRAP is '$st', not 'root mosaic 750'"; return; }
    pass "5 $BWRAP is root mosaic 0750, by the statoverride and by stat"
 }
@@ -9,6 +9,7 @@
 #
 # Checks: the config and business file validate; `sudo -n true` fails and
 # `id -G` prints one group; bus.tester is off for library and on for factory,
+# the explicit notifier config is valid at 0600 in a private 0700 directory;
 # and factory refuses a business file with a library project
 # (profile-library-business); the run root is 0700; XDG_DATA_HOME is unset or
 # <home>/.local/share; node is 24 or later; bwrap runs; the unprivileged port
@@ -172,6 +173,11 @@ const say = (...f) => console.log(f.join("\t"));
 let system;
 try { system = loadSystem(); } catch (e) { say("CONFIG", "bad", e.message.split("\n")[0]); process.exit(0); }
 say("CONFIG", "ok", system.dataRoot, configDir());
+try {
+  const { readNotifyConfig } = await import(`${repo}/packages/cli/src/cli.mjs`);
+  readNotifyConfig(system.dataRoot, id);
+  say("NOTIFY", "ok");
+} catch (e) { say("NOTIFY", "bad", e.message.split("\n")[0]); }
 const file = businessFilePath(id);
 let raw;
 try { raw = JSON.parse(readFileSync(file, "utf8")); } catch (e) { say("BUSINESS", "bad", `cannot read ${file}: ${e.code ?? e.message}`); process.exit(0); }
@@ -204,6 +210,19 @@ case "$cfg" in
    *) refuse "config: the check did not run: $(printf '%s' "$facts" | head -n 1)" ;;
 esac

+# Use the CLI's exact file/owner/mode/JSON rule; its journal also needs a private directory.
+if [ -n "$DATA_ROOT" ]; then
+    notify_dir="$DATA_ROOT/notify/$BUSINESS"
+    notify="$(line NOTIFY)"
+    case "$notify" in
+        "NOTIFY	ok")
+            if private_dir "$notify_dir"; then ok "notifier config $notify_dir/notify.json validates (directory 0700, file 0600)"
+            else refuse "notifier config: $notify_dir must be $ME's 0700 directory"; fi ;;
+        "NOTIFY	bad	"*) refuse "notifier config: ${notify#NOTIFY	bad	}" ;;
+        *) refuse "notifier config: the check did not run" ;;
+    esac
+fi
+
 # Tester and profile.
 library="$(line LIBRARY | cut -f2)"
 biz="$(line BUSINESS)"
@@ -59,7 +59,7 @@ WEBUI_UNIT=mosaic-webui.service
 usage() { echo 'usage: case2-unit.sh --user NAME --home DIR --business ID --copy ID --node PATH [--profile factory|library] [--pm] [--claude PATH] -- SERVE FLAGS' >&2; exit 4; }
 die() { echo "case2-unit: $*" >&2; exit 1; }
 # A value the unit carries as itself: no space, %, $, quote, backslash, & or |.
-plain() { case "$1" in *[!A-Za-z0-9/._+-]*) return 1 ;; esac; }
+plain() { case "$1" in *[!A-Za-z0-9/._+@-]*) return 1 ;; esac; }
 abs_plain() {
    case "$1" in /*) ;; *) die "$2 must be an absolute path: $1" ;; esac
    plain "$1" || die "$2 contains a character the unit cannot carry: $1"
@@ -59,6 +59,9 @@ copy_commit() {
 # The copy of commit $2 from repository $1. CLEAN names a bundle's temporary repository, which the
 # trap removes with the temporary copy.
 copy_tree() {
+ # Paths are absolute here (including a bundle resolved by copy_bundle). The caller
+ # may have dropped uid from a directory this user cannot read; find must start elsewhere.
+ cd / || die 'cannot change to /; no copy written'
 local full="$2" target tmp
 target="$COPIES/$full"
 [ ! -L "$target" ] || die "refusing: copy target is a symlink: $target"
Author	SHA1	Message	Date
jason.woltje	faf55618ee	test(row320): reproduce an unsearchable inherited cwd and restore cleanup (#1816 ). Untested	2026-10-23 16:26:32 -05:00
jason.woltje	6fa47e07d9	docs(row 320, #1816 ): move Gladstone build receipt to queue path	2026-10-23 16:18:11 -05:00
jason.woltje	af201b4a98	docs(build): correct the citation receipt line count (#1816 )	2026-10-23 16:04:38 -05:00
jason.woltje	0f3d874d48	docs(installer): cite the wrapper live-step gate (#1816 , sage-3747)	2026-10-23 16:04:23 -05:00
jason.woltje	075a2b3667	docs(installer): add gated wrapper creation and private notify parent (#1816 , Vikunja 614). Untested	2026-10-23 16:02:31 -05:00
jason.woltje	5fd2328b62	test(installer): add approved explicit notifier fixtures (#1816 , mos-1537). Untested	2026-10-23 16:01:59 -05:00
jason.woltje	33950cf9ba	fix(precheck): require the explicit notifier decision before host start (#1816 , Vikunja 614). Untested	2026-10-23 15:59:56 -05:00
jason.woltje	a75532db18	fix(installer): allow scoped Claude paths and leave unreadable cwd (#1816 , Vikunja 614). Untested	2026-10-23 15:56:19 -05:00
jason.woltje	f30c74b128	fix(hostcheck): accept dpkg octal mode and verify bundles in scratch repos (#1816 , Vikunja 614). Untested	2026-10-23 15:53:11 -05:00