Files
LumaWeb/state/handoffs/S00-031.md
T
wt 263d365640 S00-031: Approve the independently verified Codex host sandbox diagnostic
Changes: Accept S00-031 with independent QA evidence and handoff; confirm the automation guidance matches the bounded host-context diagnostic.
Validation: Approved host stat verified uid1000/mode0700; inner workspace-write probe exited 0 with project write/read/remove and outside write denial EROFS30. make check passed 72 tests; scope, executor message and git diff --check passed. No model or storage task ran; acceptance covers this host/version and one filesystem boundary.

Task: S00-031
Agent: auto-qa-56c26814c30b
Role: qa
Action: review
Status: done

Task title: Supply a verified private Codex app-server socket environment
2026-10-15 17:44:13 +07:00

4.4 KiB

S00-031 coordinator-supplied host input (not implementation or acceptance)

User requested autonomous environment recovery and continued independent development. No product task is accepted by this handoff.

New diagnosis replacing the speculative host-permission premise

Read-only investigation of installed Codex 0.159.0 confirmed the actual directory is /tmp/codex-daemon-1000 (not XDG_RUNTIME_DIR).

  • Approved host stat: uid 1000, mode 0700.
  • The same path inside an existing workspace sandbox is uid 1000, mode 000; read-only tmpfs protective mask. Listing is denied.
  • Canonical directory selection intentionally ignores HOME/TMPDIR/CODEX_HOME. --no-daemon does not avoid the guard.

Primary implementation references for independent inspection: https://github.com/openai/codex/blob/rust-v0.159.0/codex-rs/uds/src/daemon_directory.rs https://github.com/openai/codex/blob/rust-v0.159.0/codex-rs/linux-sandbox/src/bwrap.rs

No chmod, socket exposure, alternate writable roots or environment relocation is appropriate. The host socket environment already meets ownership/private-mode requirements. Nested launch fails because it sees the deliberate mask.

Verified supported execution context

Coordinator outer tool requested approved host execution (sandbox_permissions: require_escalated) of:

codex -c 'sandbox_mode="workspace-write"' -c sandbox_workspace_write.network_access=true sandbox -- python3 /tmp/luma-filesystem-sandbox-probe.py

This is not an unsandboxed diagnostic: the inner Codex process enforces a fresh workspace-write sandbox. Actual exit 0; project synthetic write/read/remove passed; exclusive-create outside project in /home/tola denied with EROFS 30, no outside file created, uid1000. Public command/result log: state/runs/coordinator-sandbox/output.log. Probe script is available in /tmp; inspect before repeating or reproduce the same bounded synthetic check.

Fresh executor and reviewer should REQUEST APPROVED OUTER HOST EXECUTION for this bounded no-model inner-sandbox diagnostic, rather than run a second sandbox recursively inside their restricted shell. If approval/host execution is unavailable, record that exact limitation and stop; do not reinterpret it as broken global socket permissions and do not mutate sockets. Do not launch a model for the diagnostic.

Required next outcome

Independently repeat host ownership/mode and actual positive/negative inner filesystem probe, document supported invocation only in docs/AUTOMATION.md, provide evidence and submit for QA. S00-030/028/storage remain unfinished until the normal reviewed chain completes. No check from this coordinator handoff is independent executor/reviewer evidence.

Executor handoff to independent QA — auto-ci-cd-d45ccd3ee7d6

S00-031 outcome implemented, awaiting review. Independently approved outer host execution confirmed directory uid1000/mode0700 and ran one no-model inner workspace-write probe: exit0, project write/read/remove passed, /home/tola exclusive-create denied EROFS30, no outside file created. Outer restricted-shell stat sees mode000, consistent with supplied mask diagnosis. Socket permissions/config/writable roots unchanged; no model/storage task launched.

Source change only docs/AUTOMATION.md. Full inspected probe and exact host wrapper: state/evidence/S00-031-auto-ci-cd-d45ccd3ee7d6.md. Final make check passed all72 tooling tests; initial verbose draft caused prompt-budget errors, fixed by compacting documentation. QA must inspect diff/message, independently request approved outer host execution of the bounded inner sandbox wrapper, verify metadata and both filesystem results, then review only S00-031. Do not execute the probe directly unsandboxed, mutate sockets, or start downstream storage work. Temporary script may be inspected/recreated from evidence; no permanent script dependency. Coordinator owns commit and next fresh process.

Independent QA acceptance — auto-qa-56c26814c30b

S00-031 approved after independent approved host wrapper: uid1000/mode0700, inner sandbox exit0, project write/read/remove passed, outside exclusive-create denied EROFS30. Restricted-shell stat mode000 and Codex0.159.0 confirmed. make check exit0, 72 tests in19.307s; scope/message/whitespace inspected. Review: state/evidence/S00-031-review.md. No socket/config/root changes, model or storage execution. Coordinator commits review before next fresh original-task process; downstream tasks are not accepted here.