Possible cross-thread recap contamination

What version of Codex CLI is running?

0.151.0

What subscription do you have?

Pro

Which model were you using?

gpt-5.6-sol medium

What platform is your computer?

Linux 7.0.0-30-generic x86_64 unknown

What terminal emulator and version are you using (if applicable)?

ghostty

Codex doctor report

{
  "schemaVersion": 1,
  "generatedAt": "1788159350s since unix epoch",
  "overallStatus": "warning",
  "codexVersion": "0.151.0",
  "checks": {
    "app_server.status": {
      "id": "app_server.status",
      "category": "app-server",
      "status": "ok",
      "summary": "background server is not running",
      "details": {
        "control socket": "/home/jchia/.codex/app-server-control/app-server-control.sock",
        "daemon state dir": "/home/jchia/.codex/app-server-daemon",
        "mode": "ephemeral",
        "pid file": "/home/jchia/.codex/app-server-daemon/app-server.pid (missing)",
        "settings": "/home/jchia/.codex/app-server-daemon/settings.json (missing)",
        "status": "not running",
        "update-loop pid file": "/home/jchia/.codex/app-server-daemon/app-server-updater.pid (missing)"
      },
      "remediation": null,
      "durationMs": 0
    },
    "auth.credentials": {
      "id": "auth.credentials",
      "category": "auth",
      "status": "ok",
      "summary": "auth is configured",
      "details": {
        "auth env vars present": "OPENAI_API_KEY",
        "auth file": "/home/jchia/.codex/auth.json",
        "auth storage mode": "File",
        "stored API key": "false",
        "stored ChatGPT tokens": "true",
        "stored agent identity": "false",
        "stored auth mode": "chatgpt"
      },
      "remediation": null,
      "durationMs": 0
    },
    "config.load": {
      "id": "config.load",
      "category": "config",
      "status": "ok",
      "summary": "config loaded",
      "details": {
        "CODEX_HOME": "/home/jchia/.codex",
        "config.toml": "/home/jchia/.codex/config.toml",
        "config.toml parse": "ok",
        "cwd": "/home/jchia/git/stem",
        "enabled feature flags": "shell_tool, view_image, unified_exec, unified_exec_zsh_fork, shell_snapshot, content_item_kinds, code_mode_host, terminal_resize_reflow, sqlite, hooks, enable_request_compression, unbounded_connection_retries, multi_agent, apps, tool_search_always_defer_mcp_tools, tool_suggest, plugins, in_app_browser, in_app_chat, in_app_dictation, in_app_local_automation, in_app_updates, browser_use, browser_use_full_cdp_access, browser_use_external, computer_use, remote_plugin, plugin_sharing, image_generation, resize_all_images, item_ids, skill_mcp_dependency_install, skill_search, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, auth_elicitation, personality, fast_mode, tui_app_server, remote_compaction_v2, compaction_image_budget, workspace_dependencies",
        "feature flag overrides": "none",
        "feature flags enabled": "46",
        "log dir": "/home/jchia/.codex/log",
        "mcp servers": "2",
        "model": "gpt-5.6-sol",
        "model provider": "openai",
        "sqlite home": "/home/jchia/.codex"
      },
      "remediation": null,
      "durationMs": 0
    },
    "git.environment": {
      "id": "git.environment",
      "category": "git",
      "status": "ok",
      "summary": "git version 2.55.0",
      "details": {
        ".git entry": "directory",
        "PATH git #1": "/usr/bin/git",
        "PATH git #2": "/bin/git",
        "PATH git entries": "2",
        "git branch": "heads/stem",
        "git build options": "git version 2.55.0; cpu: x86_64; no commit associated with this build; sizeof-long: 8; sizeof-size_t: 8; shell-path: /bin/sh; rust: enabled; feature: fsmonitor--daemon; gettext: enabled; libcurl: 8.5.0; zlib: 1.3; SHA-1: SHA1_DC; SHA-256: SHA256_BLK; default-ref-format: files; default-hash: sha1",
        "git exec path": "/usr/lib/git-core",
        "git version": "git version 2.55.0",
        "repo detected": "true",
        "repo root": "/home/jchia/git/stem",
        "selected git": "/usr/bin/git"
      },
      "remediation": null,
      "durationMs": 40
    },
    "installation": {
      "id": "installation",
      "category": "install",
      "status": "ok",
      "summary": "installation looks consistent",
      "details": {
        "PATH codex #1": "/home/jchia/.local/bin/codex",
        "current executable": "/home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/bin/codex",
        "install context": "standalone (unix, package /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl, bin /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/bin, resources /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/codex-resources, path /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/codex-path)",
        "managed by bun": "false",
        "managed by npm": "false",
        "managed by pnpm": "false",
        "managed package root": "not set"
      },
      "remediation": null,
      "durationMs": 0
    },
    "mcp.config": {
      "id": "mcp.config",
      "category": "mcp",
      "status": "ok",
      "summary": "MCP configuration is locally consistent",
      "details": {
        "configured servers": "2",
        "disabled servers": "0",
        "stdio servers": "1",
        "streamable_http servers": "1"
      },
      "remediation": null,
      "durationMs": 118
    },
    "network.env": {
      "id": "network.env",
      "category": "network",
      "status": "ok",
      "summary": "network-related environment looks readable",
      "details": {
        "managed proxy": "not configured",
        "proxy env vars": "none",
        "respect system proxy": "disabled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "network.provider_reachability": {
      "id": "network.provider_reachability",
      "category": "reachability",
      "status": "ok",
      "summary": "active provider endpoints are reachable over HTTP",
      "details": {
        "ChatGPT inference URL": "https://chatgpt.com/backend-api/<redacted> reachable (HTTP 405)",
        "reachability mode": "ChatGPT auth"
      },
      "remediation": null,
      "durationMs": 100
    },
    "network.websocket_reachability": {
      "id": "network.websocket_reachability",
      "category": "websocket",
      "status": "ok",
      "summary": "Responses WebSocket handshake succeeded",
      "details": {
        "DNS": "2 IPv4, 2 IPv6, first IPv4",
        "auth mode": "chatgpt",
        "connect timeout": "15000 ms",
        "endpoint": "wss://chatgpt.com/backend-api/<redacted>",
        "handshake result": "HTTP 101 Switching Protocols",
        "model provider": "openai",
        "provider name": "OpenAI",
        "proxy env vars": "none",
        "reasoning header": "false",
        "server model present": "false",
        "supports websockets": "true",
        "wire API": "responses"
      },
      "remediation": null,
      "durationMs": 947
    },
    "runtime.provenance": {
      "id": "runtime.provenance",
      "category": "runtime",
      "status": "ok",
      "summary": "running standalone on linux-x86_64",
      "details": {
        "commit": "unknown",
        "current executable": "/home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/bin/codex",
        "install method": "standalone (unix, package /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl, bin /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/bin, resources /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/codex-resources, path /home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/codex-path)",
        "platform": "linux-x86_64",
        "version": "0.151.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "runtime.search": {
      "id": "runtime.search",
      "category": "search",
      "status": "ok",
      "summary": "search is OK (bundled)",
      "details": {
        "search command": "/home/jchia/.codex/packages/standalone/releases/0.151.0-x86_64-unknown-linux-musl/codex-path/rg",
        "search command readiness": "file exists",
        "search provider": "bundled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "sandbox.helpers": {
      "id": "sandbox.helpers",
      "category": "sandbox",
      "status": "ok",
      "summary": "sandbox configuration is readable",
      "details": {
        "approval policy": "OnRequest",
        "codex-linux-sandbox helper": "/home/jchia/.codex/tmp/arg0/codex-arg0dDPKuQ/codex-linux-sandbox",
        "execve wrapper helper": "/home/jchia/.codex/tmp/arg0/codex-arg0dDPKuQ/codex-execve-wrapper",
        "filesystem sandbox": "restricted",
        "network sandbox": "enabled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "security.endpoint": {
      "id": "security.endpoint",
      "category": "security",
      "status": "ok",
      "summary": "endpoint protection is not inspected on this platform",
      "details": {
        "endpoint products": "not inspected on this platform"
      },
      "remediation": null,
      "durationMs": 0
    },
    "state.paths": {
      "id": "state.paths",
      "category": "state",
      "status": "ok",
      "summary": "state paths and databases are inspectable",
      "details": {
        "CODEX_HOME": "/home/jchia/.codex (dir)",
        "active rollout files": "684 files, 1363414318 total bytes, 1993295 average bytes",
        "archived rollout files": "26 files, 4633472 total bytes, 178210 average bytes",
        "goals DB": "/home/jchia/.codex/goals_1.sqlite (file)",
        "goals DB integrity": "ok",
        "log DB": "/home/jchia/.codex/logs_2.sqlite (file)",
        "log DB integrity": "ok",
        "log dir": "/home/jchia/.codex/log (dir)",
        "memories DB": "/home/jchia/.codex/memories_1.sqlite (file)",
        "memories DB integrity": "ok",
        "queue DB": "/home/jchia/.codex/queue_1.sqlite (file)",
        "queue DB integrity": "ok",
        "sqlite home": "/home/jchia/.codex (dir)",
        "standalone release cache": "3 entries in /home/jchia/.codex/packages/standalone/releases",
        "state DB": "/home/jchia/.codex/state_5.sqlite (file)",
        "state DB integrity": "ok",
        "thread history DB": "/home/jchia/.codex/thread_history_1.sqlite (file)",
        "thread history DB integrity": "ok"
      },
      "remediation": null,
      "durationMs": 432
    },
    "state.rollout_db_parity": {
      "id": "state.rollout_db_parity",
      "category": "threads",
      "status": "warning",
      "summary": "rollout files and state DB thread inventory differ",
      "details": {
        "default model provider": "openai",
        "rollout DB active files": "667",
        "rollout DB active rows": "668",
        "rollout DB archive mismatches": "0",
        "rollout DB archived files": "26",
        "rollout DB archived rows": "26",
        "rollout DB duplicate DB paths": "0",
        "rollout DB duplicate rollout thread ids": "0",
        "rollout DB malformed file names": "0",
        "rollout DB missing active rows": "0",
        "rollout DB missing archived rows": "0",
        "rollout DB model providers": "openai=694",
        "rollout DB rows": "694",
        "rollout DB scan cap reached": "false",
        "rollout DB scan error sample": [
          "/home/jchia/.codex/sessions/rollout-2025-07-03T14-20-21-65404730-0f19-4f12-afcc-646bb499dbff.jsonl (rollout at /home/jchia/.codex/sessions/rollout-2025-07-03T14-20-21-65404730-0f19-4f12-afcc-646bb499dbff.jsonl has no usable header record)",
          "/home/jchia/.codex/sessions/rollout-2025-09-25T20-35-01-a7894d58-44e7-4388-9888-94401004e6f2.jsonl (rollout at /home/jchia/.codex/sessions/rollout-2025-09-25T20-35-01-a7894d58-44e7-4388-9888-94401004e6f2.jsonl has no usable header record)",
          "/home/jchia/.codex/sessions/rollout-2025-09-25T20-34-55-335cfbf9-1398-4799-ba64-a8e714b078f3.jsonl (rollout at /home/jchia/.codex/sessions/rollout-2025-09-25T20-34-55-335cfbf9-1398-4799-ba64-a8e714b078f3.jsonl has no usable header record)",
          "/home/jchia/.codex/sessions/rollout-2025-07-03T13-48-29-792b0b84-9f39-40a8-bf3a-fb259ebaeac3.jsonl (rollout at /home/jchia/.codex/sessions/rollout-2025-07-03T13-48-29-792b0b84-9f39-40a8-bf3a-fb259ebaeac3.jsonl has no usable header record)",
          "/home/jchia/.codex/sessions/rollout-2025-09-25T21-14-25-7df775a6-8ac2-4ae6-9d68-6a005ceb3ee3.jsonl (rollout at /home/jchia/.codex/sessions/rollout-2025-09-25T21-14-25-7df775a6-8ac2-4ae6-9d68-6a005ceb3ee3.jsonl has no usable header record)"
        ],
        "rollout DB scan errors": "17",
        "rollout DB sources": "cli=537, vscode=95, subagent:thread_spawn=45, subagent:review=14, exec=3",
        "rollout DB stale row sample": "/home/jchia/.codex/sessions/2026/08/17/rollout-2026-08-17T00-16-02-01a00b5b-d498-7932-ad36-2d6dc5770d30.jsonl",
        "rollout DB stale rows": "1"
      },
      "issues": [
        {
          "severity": "warning",
          "cause": "state DB rows point at missing or unusable rollout files",
          "measured": "1 stale rows",
          "expected": "every state DB rollout path is a file on disk",
          "remedy": null,
          "fields": []
        },
        {
          "severity": "warning",
          "cause": "rollout scan was incomplete or found bad files",
          "measured": "17 scan errors, 0 malformed names, scan cap reached: false",
          "expected": "rollout directories are fully scannable",
          "remedy": "Check file permissions and unexpected files under CODEX_HOME sessions.",
          "fields": []
        }
      ],
      "remediation": null,
      "durationMs": 228
    },
    "system.disk": {
      "id": "system.disk",
      "category": "disk",
      "status": "ok",
      "summary": "sufficient free disk space (370.9 GiB)",
      "details": {
        "CODEX_HOME available": "370.9 GiB",
        "failure threshold": "1.0 GiB",
        "warning threshold": "5.0 GiB",
        "worktree available": "370.9 GiB"
      },
      "remediation": null,
      "durationMs": 0
    },
    "system.environment": {
      "id": "system.environment",
      "category": "system",
      "status": "ok",
      "summary": "OS language en-US",
      "details": {
        "EDITOR": "set",
        "LANG": "en_US.UTF-8",
        "LC_CTYPE": "en_US.UTF-8",
        "LESS": "set",
        "VISUAL": "not set",
        "os": "Ubuntu 26.4.0 (resolute) [64-bit]",
        "os language": "en-US",
        "os type": "Ubuntu",
        "os version": "26.4.0"
      },
      "remediation": null,
      "durationMs": 14
    },
    "terminal.env": {
      "id": "terminal.env",
      "category": "terminal",
      "status": "ok",
      "summary": "terminal metadata was detected",
      "details": {
        "COLORTERM": "truecolor",
        "DISPLAY": "present",
        "TERMINFO": "/usr/share/terminfo (dir)",
        "TERM_PROGRAM": "ghostty",
        "WAYLAND_DISPLAY": "present",
        "color output": "enabled",
        "effective locale": "en_US.UTF-8",
        "stderr is terminal": "true",
        "stdin is terminal": "true",
        "stdout is terminal": "true",
        "terminal": "Ghostty",
        "terminal size": "255x54",
        "terminal version": "1.3.0-dev+0000000"
      },
      "remediation": null,
      "durationMs": 0
    },
    "terminal.title": {
      "id": "terminal.title",
      "category": "title",
      "status": "ok",
      "summary": "terminal title default",
      "details": {
        "terminal title activity": "true",
        "terminal title items": "activity, project-name",
        "terminal title project source": "git repo root",
        "terminal title project value": "stem",
        "terminal title source": "default"
      },
      "remediation": null,
      "durationMs": 0
    },
    "updates.status": {
      "id": "updates.status",
      "category": "updates",
      "status": "ok",
      "summary": "update configuration is locally consistent",
      "details": {
        "cached latest version": "0.151.0",
        "check for update on startup": "true",
        "last checked at": "2026-08-31T04:06:51.246751110Z",
        "latest version": "0.151.0",
        "latest version status": "current version is not older",
        "update action": "standalone installer",
        "version cache": "/home/jchia/.codex/version.json"
      },
      "remediation": null,
      "durationMs": 40
    }
  }
}

What issue are you seeing?

Codex CLI wrongly switches language from English to Chinese. The conversation was entirely in English when Codex CLI output the following Chinese text. The conversation should have stayed in English.
─ Conversation recap ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

目标是判断无变更的 NOP push 能否触发 Git LFS 锁验证。已确认不能：没有 ref 更新时 pre-push hook 不会检查锁或更新 locksverify；下一步需推送实际 ref 更新。

What steps can reproduce the bug?

Uploaded thread: 01a0566c-bbd5-71f3-9418-3021fc0ebc79

What is the expected behavior?

English output instead of Chinese.

Additional information

No response

Start with the rollout files and thread state databases named in the report, especially state_5.sqlite and thread_history_1.sqlite, and compare records from the affected threads. Reproduce the behavior across multiple threads and trace how recap data is associated with each thread. Done means recap content remains isolated to its originating thread; no source file or test is named in the issue.