config-reference.md Codex Docs, 2026-04-14 12:29 UTC → 2026-04-29 00:50 UTC

24| `approval_policy.granular.rules` | `boolean` | When `true`, approvals triggered by execpolicy `prompt` rules are allowed to surface. |24| `approval_policy.granular.rules` | `boolean` | When `true`, approvals triggered by execpolicy `prompt` rules are allowed to surface. |

25| `approval_policy.granular.sandbox_approval` | `boolean` | When `true`, sandbox escalation approval prompts are allowed to surface. |25| `approval_policy.granular.sandbox_approval` | `boolean` | When `true`, sandbox escalation approval prompts are allowed to surface. |

26| `approval_policy.granular.skill_approval` | `boolean` | When `true`, skill-script approval prompts are allowed to surface. |26| `approval_policy.granular.skill_approval` | `boolean` | When `true`, skill-script approval prompts are allowed to surface. |

27| `approvals_reviewer` | `user | guardian_subagent` | Select who reviews eligible approval prompts. Defaults to `user`; `guardian_subagent` routes supported reviews through the Guardian reviewer subagent. |27| `approvals_reviewer` | `user | auto_review` | Who reviews eligible approval prompts under `on-request` or granular approval policies. Defaults to `user`; `auto_review` uses the reviewer subagent. This setting doesn't change sandboxing or review actions already allowed inside the sandbox. |

28| `apps._default.destructive_enabled` | `boolean` | Default allow/deny for app tools with `destructive_hint = true`. |28| `apps._default.destructive_enabled` | `boolean` | Default allow/deny for app tools with `destructive_hint = true`. |

29| `apps._default.enabled` | `boolean` | Default app enabled state for all apps unless overridden per app. |29| `apps._default.enabled` | `boolean` | Default app enabled state for all apps unless overridden per app. |

30| `apps._default.open_world_enabled` | `boolean` | Default allow/deny for app tools with `open_world_hint = true`. |30| `apps._default.open_world_enabled` | `boolean` | Default allow/deny for app tools with `open_world_hint = true`. |

35| `apps.<id>.open_world_enabled` | `boolean` | Allow or block tools in this app that advertise `open_world_hint = true`. |35| `apps.<id>.open_world_enabled` | `boolean` | Allow or block tools in this app that advertise `open_world_hint = true`. |

36| `apps.<id>.tools.<tool>.approval_mode` | `auto | prompt | approve` | Per-tool approval behavior override for a single app tool. |36| `apps.<id>.tools.<tool>.approval_mode` | `auto | prompt | approve` | Per-tool approval behavior override for a single app tool. |

37| `apps.<id>.tools.<tool>.enabled` | `boolean` | Per-tool enabled override for an app tool (for example `repos/list`). |37| `apps.<id>.tools.<tool>.enabled` | `boolean` | Per-tool enabled override for an app tool (for example `repos/list`). |

38| `auto_review.policy` | `string` | Local Markdown policy instructions for automatic review. Managed `guardian_policy_config` takes precedence. Blank values are ignored. |

38| `background_terminal_max_timeout` | `number` | Maximum poll window in milliseconds for empty `write_stdin` polls (background terminal polling). Default: `300000` (5 minutes). Replaces the older `background_terminal_timeout` key. |39| `background_terminal_max_timeout` | `number` | Maximum poll window in milliseconds for empty `write_stdin` polls (background terminal polling). Default: `300000` (5 minutes). Replaces the older `background_terminal_timeout` key. |

39| `chatgpt_base_url` | `string` | Override the base URL used during the ChatGPT login flow. |40| `chatgpt_base_url` | `string` | Override the base URL used during the ChatGPT login flow. |

40| `check_for_update_on_startup` | `boolean` | Check for Codex updates on startup (set to false only when updates are centrally managed). |41| `check_for_update_on_startup` | `boolean` | Check for Codex updates on startup (set to false only when updates are centrally managed). |

47| `experimental_compact_prompt_file` | `string (path)` | Load the compaction prompt override from a file (experimental). |48| `experimental_compact_prompt_file` | `string (path)` | Load the compaction prompt override from a file (experimental). |

48| `experimental_use_unified_exec_tool` | `boolean` | Legacy name for enabling unified exec; prefer `[features].unified_exec` or `codex --enable unified_exec`. |49| `experimental_use_unified_exec_tool` | `boolean` | Legacy name for enabling unified exec; prefer `[features].unified_exec` or `codex --enable unified_exec`. |

49| `features.apps` | `boolean` | Enable ChatGPT Apps/connectors support (experimental). |50| `features.apps` | `boolean` | Enable ChatGPT Apps/connectors support (experimental). |

50| `features.codex_hooks` | `boolean` | Enable lifecycle hooks loaded from `hooks.json` (under development; off by default). |51| `features.codex_hooks` | `boolean` | Enable lifecycle hooks loaded from `hooks.json` or inline `[hooks]` config. |

51| `features.enable_request_compression` | `boolean` | Compress streaming request bodies with zstd when supported (stable; on by default). |52| `features.enable_request_compression` | `boolean` | Compress streaming request bodies with zstd when supported (stable; on by default). |

52| `features.fast_mode` | `boolean` | Enable Fast mode selection and the `service_tier = "fast"` path (stable; on by default). |53| `features.fast_mode` | `boolean` | Enable Fast mode selection and the `service_tier = "fast"` path (stable; on by default). |

54| `features.memories` | `boolean` | Enable [Memories](https://developers.openai.com/codex/memories) (off by default). |

53| `features.multi_agent` | `boolean` | Enable multi-agent collaboration tools (`spawn_agent`, `send_input`, `resume_agent`, `wait_agent`, and `close_agent`) (stable; on by default). |55| `features.multi_agent` | `boolean` | Enable multi-agent collaboration tools (`spawn_agent`, `send_input`, `resume_agent`, `wait_agent`, and `close_agent`) (stable; on by default). |

54| `features.personality` | `boolean` | Enable personality selection controls (stable; on by default). |56| `features.personality` | `boolean` | Enable personality selection controls (stable; on by default). |

55| `features.prevent_idle_sleep` | `boolean` | Prevent the machine from sleeping while a turn is actively running (experimental; off by default). |57| `features.prevent_idle_sleep` | `boolean` | Prevent the machine from sleeping while a turn is actively running (experimental; off by default). |

56| `features.shell_snapshot` | `boolean` | Snapshot shell environment to speed up repeated commands (stable; on by default). |58| `features.shell_snapshot` | `boolean` | Snapshot shell environment to speed up repeated commands (stable; on by default). |

57| `features.shell_tool` | `boolean` | Enable the default `shell` tool for running commands (stable; on by default). |59| `features.shell_tool` | `boolean` | Enable the default `shell` tool for running commands (stable; on by default). |

58| `features.skill_mcp_dependency_install` | `boolean` | Allow prompting and installing missing MCP dependencies for skills (stable; on by default). |60| `features.skill_mcp_dependency_install` | `boolean` | Allow prompting and installing missing MCP dependencies for skills (stable; on by default). |

59| `features.smart_approvals` | `boolean` | Route eligible approval requests through the guardian reviewer subagent (experimental; off by default). |

60| `features.undo` | `boolean` | Enable undo support (stable; off by default). |61| `features.undo` | `boolean` | Enable undo support (stable; off by default). |

61| `features.unified_exec` | `boolean` | Use the unified PTY-backed exec tool (stable; enabled by default except on Windows). |62| `features.unified_exec` | `boolean` | Use the unified PTY-backed exec tool (stable; enabled by default except on Windows). |

62| `features.web_search` | `boolean` | Deprecated legacy toggle; prefer the top-level `web_search` setting. |63| `features.web_search` | `boolean` | Deprecated legacy toggle; prefer the top-level `web_search` setting. |

69| `hide_agent_reasoning` | `boolean` | Suppress reasoning events in both the TUI and `codex exec` output. |70| `hide_agent_reasoning` | `boolean` | Suppress reasoning events in both the TUI and `codex exec` output. |

70| `history.max_bytes` | `number` | If set, caps the history file size in bytes by dropping oldest entries. |71| `history.max_bytes` | `number` | If set, caps the history file size in bytes by dropping oldest entries. |

71| `history.persistence` | `save-all | none` | Control whether Codex saves session transcripts to history.jsonl. |72| `history.persistence` | `save-all | none` | Control whether Codex saves session transcripts to history.jsonl. |

73| `hooks` | `table` | Lifecycle hooks configured inline in `config.toml`. Uses the same event schema as `hooks.json`; see the Hooks guide for examples and supported events. |

72| `instructions` | `string` | Reserved for future use; prefer `model_instructions_file` or `AGENTS.md`. |74| `instructions` | `string` | Reserved for future use; prefer `model_instructions_file` or `AGENTS.md`. |

73| `log_dir` | `string (path)` | Directory where Codex writes log files (for example `codex-tui.log`); defaults to `$CODEX_HOME/log`. |75| `log_dir` | `string (path)` | Directory where Codex writes log files (for example `codex-tui.log`); defaults to `$CODEX_HOME/log`. |

74| `mcp_oauth_callback_port` | `integer` | Optional fixed port for the local HTTP callback server used during MCP OAuth login. When unset, Codex binds to an ephemeral port chosen by the OS. |76| `mcp_oauth_callback_port` | `integer` | Optional fixed port for the local HTTP callback server used during MCP OAuth login. When unset, Codex binds to an ephemeral port chosen by the OS. |

83| `mcp_servers.<id>.enabled_tools` | `array<string>` | Allow list of tool names exposed by the MCP server. |85| `mcp_servers.<id>.enabled_tools` | `array<string>` | Allow list of tool names exposed by the MCP server. |

84| `mcp_servers.<id>.env` | `map<string,string>` | Environment variables forwarded to the MCP stdio server. |86| `mcp_servers.<id>.env` | `map<string,string>` | Environment variables forwarded to the MCP stdio server. |

85| `mcp_servers.<id>.env_http_headers` | `map<string,string>` | HTTP headers populated from environment variables for an MCP HTTP server. |87| `mcp_servers.<id>.env_http_headers` | `map<string,string>` | HTTP headers populated from environment variables for an MCP HTTP server. |

86| `mcp_servers.<id>.env_vars` | `array<string>` | Additional environment variables to whitelist for an MCP stdio server. |88| `mcp_servers.<id>.env_vars` | `array<string | { name = string, source = "local" | "remote" }>` | Additional environment variables to whitelist for an MCP stdio server. String entries default to `source = "local"`; use `source = "remote"` only with executor-backed remote stdio. |

89| `mcp_servers.<id>.experimental_environment` | `local | remote` | Experimental placement for an MCP server. `remote` starts stdio servers through a remote executor environment; streamable HTTP remote placement is not implemented. |

87| `mcp_servers.<id>.http_headers` | `map<string,string>` | Static HTTP headers included with each MCP HTTP request. |90| `mcp_servers.<id>.http_headers` | `map<string,string>` | Static HTTP headers included with each MCP HTTP request. |

88| `mcp_servers.<id>.oauth_resource` | `string` | Optional RFC 8707 OAuth resource parameter to include during MCP login. |91| `mcp_servers.<id>.oauth_resource` | `string` | Optional RFC 8707 OAuth resource parameter to include during MCP login. |

89| `mcp_servers.<id>.required` | `boolean` | When true, fail startup/resume if this enabled MCP server cannot initialize. |92| `mcp_servers.<id>.required` | `boolean` | When true, fail startup/resume if this enabled MCP server cannot initialize. |

92| `mcp_servers.<id>.startup_timeout_sec` | `number` | Override the default 10s startup timeout for an MCP server. |95| `mcp_servers.<id>.startup_timeout_sec` | `number` | Override the default 10s startup timeout for an MCP server. |

93| `mcp_servers.<id>.tool_timeout_sec` | `number` | Override the default 60s per-tool timeout for an MCP server. |96| `mcp_servers.<id>.tool_timeout_sec` | `number` | Override the default 60s per-tool timeout for an MCP server. |

94| `mcp_servers.<id>.url` | `string` | Endpoint for an MCP streamable HTTP server. |97| `mcp_servers.<id>.url` | `string` | Endpoint for an MCP streamable HTTP server. |

95| `model` | `string` | Model to use (e.g., `gpt-5.4`). |98| `memories.consolidation_model` | `string` | Optional model override for global memory consolidation. |

99| `memories.disable_on_external_context` | `boolean` | When `true`, threads that use external context such as MCP tool calls, web search, or tool search are kept out of memory generation. Defaults to `false`. Legacy alias: `memories.no_memories_if_mcp_or_web_search`. |

100| `memories.extract_model` | `string` | Optional model override for per-thread memory extraction. |

101| `memories.generate_memories` | `boolean` | When `false`, newly created threads are not stored as memory-generation inputs. Defaults to `true`. |

102| `memories.max_raw_memories_for_consolidation` | `number` | Maximum recent raw memories retained for global consolidation. Defaults to `256` and is capped at `4096`. |

103| `memories.max_rollout_age_days` | `number` | Maximum age of threads considered for memory generation. Defaults to `30` and is clamped to `0`-`90`. |

104| `memories.max_rollouts_per_startup` | `number` | Maximum rollout candidates processed per startup pass. Defaults to `16` and is capped at `128`. |

105| `memories.max_unused_days` | `number` | Maximum days since a memory was last used before it becomes ineligible for consolidation. Defaults to `30` and is clamped to `0`-`365`. |

106| `memories.min_rollout_idle_hours` | `number` | Minimum idle time before a thread is considered for memory generation. Defaults to `6` and is clamped to `1`-`48`. |

107| `memories.use_memories` | `boolean` | When `false`, Codex skips injecting existing memories into future sessions. Defaults to `true`. |

108| `model` | `string` | Model to use (e.g., `gpt-5.5`). |

96| `model_auto_compact_token_limit` | `number` | Token threshold that triggers automatic history compaction (unset uses model defaults). |109| `model_auto_compact_token_limit` | `number` | Token threshold that triggers automatic history compaction (unset uses model defaults). |

97| `model_catalog_json` | `string (path)` | Optional path to a JSON model catalog loaded on startup. Profile-level `profiles.<name>.model_catalog_json` can override this per profile. |110| `model_catalog_json` | `string (path)` | Optional path to a JSON model catalog loaded on startup. Profile-level `profiles.<name>.model_catalog_json` can override this per profile. |

98| `model_context_window` | `number` | Context window tokens available to the active model. |111| `model_context_window` | `number` | Context window tokens available to the active model. |

150| `otel.trace_exporter.<id>.tls.client-certificate` | `string` | Client certificate path for OTEL trace exporter TLS. |163| `otel.trace_exporter.<id>.tls.client-certificate` | `string` | Client certificate path for OTEL trace exporter TLS. |

151| `otel.trace_exporter.<id>.tls.client-private-key` | `string` | Client private key path for OTEL trace exporter TLS. |164| `otel.trace_exporter.<id>.tls.client-private-key` | `string` | Client private key path for OTEL trace exporter TLS. |

152| `permissions.<name>.filesystem` | `table` | Named filesystem permission profile. Each key is an absolute path or special token such as `:minimal` or `:project_roots`. |165| `permissions.<name>.filesystem` | `table` | Named filesystem permission profile. Each key is an absolute path or special token such as `:minimal` or `:project_roots`. |

153| `permissions.<name>.filesystem.":project_roots".<subpath>` | `"read" | "write" | "none"` | Scoped filesystem access relative to the detected project roots. Use `"."` for the root itself. |166| `permissions.<name>.filesystem.":project_roots".<subpath-or-glob>` | `"read" | "write" | "none"` | Scoped filesystem access relative to the detected project roots. Use `"."` for the root itself; glob subpaths such as `"**/*.env"` can deny reads with `"none"`. |

154| `permissions.<name>.filesystem.<path>` | `"read" | "write" | "none" | table` | Grant direct access for a path or special token, or scope nested entries under that root. |167| `permissions.<name>.filesystem.<path-or-glob>` | `"read" | "write" | "none" | table` | Grant direct access for a path, glob pattern, or special token, or scope nested entries under that root. Use `"none"` to deny reads for matching paths. |

168| `permissions.<name>.filesystem.glob_scan_max_depth` | `number` | Maximum depth for expanding deny-read glob patterns on platforms that snapshot matches before sandbox startup. Must be at least `1` when set. |

155| `permissions.<name>.network.allow_local_binding` | `boolean` | Permit local bind/listen operations through the managed proxy. |169| `permissions.<name>.network.allow_local_binding` | `boolean` | Permit local bind/listen operations through the managed proxy. |

156| `permissions.<name>.network.allow_upstream_proxy` | `boolean` | Allow the managed proxy to chain to another upstream proxy. |170| `permissions.<name>.network.allow_upstream_proxy` | `boolean` | Allow the managed proxy to chain to another upstream proxy. |

157| `permissions.<name>.network.dangerously_allow_all_unix_sockets` | `boolean` | Allow the proxy to use arbitrary Unix sockets instead of the default restricted set. |171| `permissions.<name>.network.dangerously_allow_all_unix_sockets` | `boolean` | Allow the proxy to use arbitrary Unix sockets instead of the default restricted set. |

182| `project_doc_fallback_filenames` | `array<string>` | Additional filenames to try when `AGENTS.md` is missing. |196| `project_doc_fallback_filenames` | `array<string>` | Additional filenames to try when `AGENTS.md` is missing. |

183| `project_doc_max_bytes` | `number` | Maximum bytes read from `AGENTS.md` when building project instructions. |197| `project_doc_max_bytes` | `number` | Maximum bytes read from `AGENTS.md` when building project instructions. |

184| `project_root_markers` | `array<string>` | List of project root marker filenames; used when searching parent directories for the project root. |198| `project_root_markers` | `array<string>` | List of project root marker filenames; used when searching parent directories for the project root. |

185| `projects.<path>.trust_level` | `string` | Mark a project or worktree as trusted or untrusted (`"trusted"` | `"untrusted"`). Untrusted projects skip project-scoped `.codex/` layers. |199| `projects.<path>.trust_level` | `string` | Mark a project or worktree as trusted or untrusted (`"trusted"` | `"untrusted"`). Untrusted projects skip project-scoped `.codex/` layers, including project-local config, hooks, and rules. |

186| `review_model` | `string` | Optional model override used by `/review` (defaults to the current session model). |200| `review_model` | `string` | Optional model override used by `/review` (defaults to the current session model). |

187| `sandbox_mode` | `read-only | workspace-write | danger-full-access` | Sandbox policy for filesystem and network access during command execution. |201| `sandbox_mode` | `read-only | workspace-write | danger-full-access` | Sandbox policy for filesystem and network access during command execution. |

188| `sandbox_workspace_write.exclude_slash_tmp` | `boolean` | Exclude `/tmp` from writable roots in workspace-write mode. |202| `sandbox_workspace_write.exclude_slash_tmp` | `boolean` | Exclude `/tmp` from writable roots in workspace-write mode. |

210| `tui.alternate_screen` | `auto | always | never` | Control alternate screen usage for the TUI (default: auto; auto skips it in Zellij to preserve scrollback). |224| `tui.alternate_screen` | `auto | always | never` | Control alternate screen usage for the TUI (default: auto; auto skips it in Zellij to preserve scrollback). |

211| `tui.animations` | `boolean` | Enable terminal animations (welcome screen, shimmer, spinner) (default: true). |225| `tui.animations` | `boolean` | Enable terminal animations (welcome screen, shimmer, spinner) (default: true). |

212| `tui.model_availability_nux.<model>` | `integer` | Internal startup-tooltip state keyed by model slug. |226| `tui.model_availability_nux.<model>` | `integer` | Internal startup-tooltip state keyed by model slug. |

213| `tui.notification_method` | `auto | osc9 | bel` | Notification method for unfocused terminal notifications (default: auto). |227| `tui.notification_condition` | `unfocused | always` | Control whether TUI notifications fire only when the terminal is unfocused or regardless of focus. Defaults to `unfocused`. |

228| `tui.notification_method` | `auto | osc9 | bel` | Notification method for terminal notifications (default: auto). |

214| `tui.notifications` | `boolean | array<string>` | Enable TUI notifications; optionally restrict to specific event types. |229| `tui.notifications` | `boolean | array<string>` | Enable TUI notifications; optionally restrict to specific event types. |

215| `tui.show_tooltips` | `boolean` | Show onboarding tooltips in the TUI welcome screen (default: true). |230| `tui.show_tooltips` | `boolean` | Show onboarding tooltips in the TUI welcome screen (default: true). |

216| `tui.status_line` | `array<string> | null` | Ordered list of TUI footer status-line item identifiers. `null` disables the status line. |231| `tui.status_line` | `array<string> | null` | Ordered list of TUI footer status-line item identifiers. `null` disables the status line. |

395 410 

396Type / Values411Type / Values

397 412 

398`user | guardian_subagent`413`user | auto_review`

399 414 

400Details415Details

401 416 

402Select who reviews eligible approval prompts. Defaults to `user`; `guardian_subagent` routes supported reviews through the Guardian reviewer subagent.417Who reviews eligible approval prompts under `on-request` or granular approval policies. Defaults to `user`; `auto_review` uses the reviewer subagent. This setting doesn't change sandboxing or review actions already allowed inside the sandbox.

403 418 

404Key419Key

405 420 

523 538 

524Key539Key

525 540 

541`auto_review.policy`

542 

543Type / Values

544 

545`string`

546 

547Details

548 

549Local Markdown policy instructions for automatic review. Managed `guardian_policy_config` takes precedence. Blank values are ignored.

550 

551Key

552 

526`background_terminal_max_timeout`553`background_terminal_max_timeout`

527 554 

528Type / Values555Type / Values

675 702 

676Details703Details

677 704 

678Enable lifecycle hooks loaded from `hooks.json` (under development; off by default).705Enable lifecycle hooks loaded from `hooks.json` or inline `[hooks]` config.

679 706 

680Key707Key

681 708 

703 730 

704Key731Key

705 732 

733`features.memories`

734 

735Type / Values

736 

737`boolean`

738 

739Details

740 

741Enable [Memories](https://developers.openai.com/codex/memories) (off by default).

742 

743Key

744 

706`features.multi_agent`745`features.multi_agent`

707 746 

708Type / Values747Type / Values

775 814 

776Key815Key

777 816 

778`features.smart_approvals`

779 

780Type / Values

781 

782`boolean`

783 

784Details

785 

786Route eligible approval requests through the guardian reviewer subagent (experimental; off by default).

787 

788Key

789 

790`features.undo`817`features.undo`

791 818 

792Type / Values819Type / Values

931 958 

932Key959Key

933 960 

961`hooks`

962 

963Type / Values

964 

965`table`

966 

967Details

968 

969Lifecycle hooks configured inline in `config.toml`. Uses the same event schema as `hooks.json`; see the Hooks guide for examples and supported events.

970 

971Key

972 

934`instructions`973`instructions`

935 974 

936Type / Values975Type / Values

1103 1142 

1104Type / Values1143Type / Values

1105 1144 

1106`array<string>`1145`array<string | { name = string, source = "local" | "remote" }>`

1107 1146 

1108Details1147Details

1109 1148 

1110Additional environment variables to whitelist for an MCP stdio server.1149Additional environment variables to whitelist for an MCP stdio server. String entries default to `source = "local"`; use `source = "remote"` only with executor-backed remote stdio.

1150 

1151Key

1152 

1153`mcp_servers.<id>.experimental_environment`

1154 

1155Type / Values

1156 

1157`local | remote`

1158 

1159Details

1160 

1161Experimental placement for an MCP server. `remote` starts stdio servers through a remote executor environment; streamable HTTP remote placement is not implemented.

1111 1162 

1112Key1163Key

1113 1164 

1207 1258 

1208Key1259Key

1209 1260 

1261`memories.consolidation_model`

1262 

1263Type / Values

1264 

1265`string`

1266 

1267Details

1268 

1269Optional model override for global memory consolidation.

1270 

1271Key

1272 

1273`memories.disable_on_external_context`

1274 

1275Type / Values

1276 

1277`boolean`

1278 

1279Details

1280 

1281When `true`, threads that use external context such as MCP tool calls, web search, or tool search are kept out of memory generation. Defaults to `false`. Legacy alias: `memories.no_memories_if_mcp_or_web_search`.

1282 

1283Key

1284 

1285`memories.extract_model`

1286 

1287Type / Values

1288 

1289`string`

1290 

1291Details

1292 

1293Optional model override for per-thread memory extraction.

1294 

1295Key

1296 

1297`memories.generate_memories`

1298 

1299Type / Values

1300 

1301`boolean`

1302 

1303Details

1304 

1305When `false`, newly created threads are not stored as memory-generation inputs. Defaults to `true`.

1306 

1307Key

1308 

1309`memories.max_raw_memories_for_consolidation`

1310 

1311Type / Values

1312 

1313`number`

1314 

1315Details

1316 

1317Maximum recent raw memories retained for global consolidation. Defaults to `256` and is capped at `4096`.

1318 

1319Key

1320 

1321`memories.max_rollout_age_days`

1322 

1323Type / Values

1324 

1325`number`

1326 

1327Details

1328 

1329Maximum age of threads considered for memory generation. Defaults to `30` and is clamped to `0`-`90`.

1330 

1331Key

1332 

1333`memories.max_rollouts_per_startup`

1334 

1335Type / Values

1336 

1337`number`

1338 

1339Details

1340 

1341Maximum rollout candidates processed per startup pass. Defaults to `16` and is capped at `128`.

1342 

1343Key

1344 

1345`memories.max_unused_days`

1346 

1347Type / Values

1348 

1349`number`

1350 

1351Details

1352 

1353Maximum days since a memory was last used before it becomes ineligible for consolidation. Defaults to `30` and is clamped to `0`-`365`.

1354 

1355Key

1356 

1357`memories.min_rollout_idle_hours`

1358 

1359Type / Values

1360 

1361`number`

1362 

1363Details

1364 

1365Minimum idle time before a thread is considered for memory generation. Defaults to `6` and is clamped to `1`-`48`.

1366 

1367Key

1368 

1369`memories.use_memories`

1370 

1371Type / Values

1372 

1373`boolean`

1374 

1375Details

1376 

1377When `false`, Codex skips injecting existing memories into future sessions. Defaults to `true`.

1378 

1379Key

1380 

1210`model`1381`model`

1211 1382 

1212Type / Values1383Type / Values

1215 1386 

1216Details1387Details

1217 1388 

1218Model to use (e.g., `gpt-5.4`).1389Model to use (e.g., `gpt-5.5`).

1219 1390 

1220Key1391Key

1221 1392 

1903 2074 

1904Key2075Key

1905 2076 

1906`permissions.<name>.filesystem.":project_roots".<subpath>`2077`permissions.<name>.filesystem.":project_roots".<subpath-or-glob>`

1907 2078 

1908Type / Values2079Type / Values

1909 2080 

1911 2082 

1912Details2083Details

1913 2084 

1914Scoped filesystem access relative to the detected project roots. Use `"."` for the root itself.2085Scoped filesystem access relative to the detected project roots. Use `"."` for the root itself; glob subpaths such as `"**/*.env"` can deny reads with `"none"`.

1915 2086 

1916Key2087Key

1917 2088 

1918`permissions.<name>.filesystem.<path>`2089`permissions.<name>.filesystem.<path-or-glob>`

1919 2090 

1920Type / Values2091Type / Values

1921 2092 

1923 2094 

1924Details2095Details

1925 2096 

1926Grant direct access for a path or special token, or scope nested entries under that root.2097Grant direct access for a path, glob pattern, or special token, or scope nested entries under that root. Use `"none"` to deny reads for matching paths.

2098 

2099Key

2100 

2101`permissions.<name>.filesystem.glob_scan_max_depth`

2102 

2103Type / Values

2104 

2105`number`

2106 

2107Details

2108 

2109Maximum depth for expanding deny-read glob patterns on platforms that snapshot matches before sandbox startup. Must be at least `1` when set.

1927 2110 

1928Key2111Key

1929 2112 

2295 2478 

2296Details2479Details

2297 2480 

2298Mark a project or worktree as trusted or untrusted (`"trusted"` | `"untrusted"`). Untrusted projects skip project-scoped `.codex/` layers.2481Mark a project or worktree as trusted or untrusted (`"trusted"` | `"untrusted"`). Untrusted projects skip project-scoped `.codex/` layers, including project-local config, hooks, and rules.

2299 2482 

2300Key2483Key

2301 2484 

2623 2806 

2624Key2807Key

2625 2808 

2809`tui.notification_condition`

2810 

2811Type / Values

2812 

2813`unfocused | always`

2814 

2815Details

2816 

2817Control whether TUI notifications fire only when the terminal is unfocused or regardless of focus. Defaults to `unfocused`.

2818 

2819Key

2820 

2626`tui.notification_method`2821`tui.notification_method`

2627 2822 

2628Type / Values2823Type / Values

2631 2826 

2632Details2827Details

2633 2828 

2634Notification method for unfocused terminal notifications (default: auto).2829Notification method for terminal notifications (default: auto).

2635 2830 

2636Key2831Key

2637 2832 

2766| Key | Type / Values | Details |2961| Key | Type / Values | Details |

2767| --- | --- | --- |2962| --- | --- | --- |

2768| `allowed_approval_policies` | `array<string>` | Allowed values for `approval_policy` (for example `untrusted`, `on-request`, `never`, and `granular`). |2963| `allowed_approval_policies` | `array<string>` | Allowed values for `approval_policy` (for example `untrusted`, `on-request`, `never`, and `granular`). |

2769| `allowed_approvals_reviewers` | `array<string>` | Allowed values for `approvals_reviewer` (for example `user` and `guardian_subagent`). |2964| `allowed_approvals_reviewers` | `array<string>` | Allowed values for `approvals_reviewer`, such as `user` and `auto_review`. |

2770| `allowed_sandbox_modes` | `array<string>` | Allowed values for `sandbox_mode`. |2965| `allowed_sandbox_modes` | `array<string>` | Allowed values for `sandbox_mode`. |

2771| `allowed_web_search_modes` | `array<string>` | Allowed values for `web_search` (`disabled`, `cached`, `live`). `disabled` is always allowed; an empty list effectively allows only `disabled`. |2966| `allowed_web_search_modes` | `array<string>` | Allowed values for `web_search` (`disabled`, `cached`, `live`). `disabled` is always allowed; an empty list effectively allows only `disabled`. |

2772| `features` | `table` | Pinned feature values keyed by the canonical names from `config.toml`'s `[features]` table. |2967| `features` | `table` | Pinned feature values keyed by the canonical names from `config.toml`'s `[features]` table. |

2773| `features.<name>` | `boolean` | Require a specific canonical feature key to stay enabled or disabled. |2968| `features.<name>` | `boolean` | Require a specific canonical feature key to stay enabled or disabled. |

2969| `features.browser_use` | `boolean` | Set to `false` in `requirements.toml` to disable Browser Use and Browser Agent availability. |

2970| `features.computer_use` | `boolean` | Set to `false` in `requirements.toml` to disable Computer Use availability and related install or enablement flows. |

2971| `features.in_app_browser` | `boolean` | Set to `false` in `requirements.toml` to disable the in-app browser pane. |

2972| `guardian_policy_config` | `string` | Managed Markdown policy instructions for automatic review. This takes precedence over local `[auto_review].policy`. Blank values are ignored. |

2973| `hooks` | `table` | Admin-enforced managed lifecycle hooks. Requires a managed hook directory and uses the same event schema as inline `[hooks]` in `config.toml`. |

2974| `hooks.<Event>` | `array<table>` | Matcher groups for a hook event such as `PreToolUse`, `PostToolUse`, `PermissionRequest`, `SessionStart`, `UserPromptSubmit`, or `Stop`. |

2975| `hooks.<Event>[].hooks` | `array<table>` | Hook handlers for a matcher group. Command hooks are currently supported; prompt and agent hook handlers are parsed but skipped. |

2976| `hooks.managed_dir` | `string (absolute path)` | Directory containing managed hook scripts on macOS and Linux. Codex validates that it is absolute and exists before loading managed hooks. |

2977| `hooks.windows_managed_dir` | `string (absolute path)` | Directory containing managed hook scripts on Windows. Codex validates that it is absolute and exists before loading managed hooks. |

2774| `mcp_servers` | `table` | Allowlist of MCP servers that may be enabled. Both the server name (`<id>`) and its identity must match for the MCP server to be enabled. Any configured MCP server not in the allowlist (or with a mismatched identity) is disabled. |2978| `mcp_servers` | `table` | Allowlist of MCP servers that may be enabled. Both the server name (`<id>`) and its identity must match for the MCP server to be enabled. Any configured MCP server not in the allowlist (or with a mismatched identity) is disabled. |

2775| `mcp_servers.<id>.identity` | `table` | Identity rule for a single MCP server. Set either `command` (stdio) or `url` (streamable HTTP). |2979| `mcp_servers.<id>.identity` | `table` | Identity rule for a single MCP server. Set either `command` (stdio) or `url` (streamable HTTP). |

2776| `mcp_servers.<id>.identity.command` | `string` | Allow an MCP stdio server when its `mcp_servers.<id>.command` matches this command. |2980| `mcp_servers.<id>.identity.command` | `string` | Allow an MCP stdio server when its `mcp_servers.<id>.command` matches this command. |

2777| `mcp_servers.<id>.identity.url` | `string` | Allow an MCP streamable HTTP server when its `mcp_servers.<id>.url` matches this URL. |2981| `mcp_servers.<id>.identity.url` | `string` | Allow an MCP streamable HTTP server when its `mcp_servers.<id>.url` matches this URL. |

2982| `permissions.filesystem.deny_read` | `array<string>` | Admin-enforced filesystem read denials. Entries can be paths or glob patterns, and users cannot weaken them with local config. |

2983| `remote_sandbox_config` | `array<table>` | Host-specific sandbox requirements. The first entry whose `hostname_patterns` match the resolved host name overrides top-level `allowed_sandbox_modes` for that requirements source. Host-specific entries currently override sandbox modes only. |

2984| `remote_sandbox_config[].allowed_sandbox_modes` | `array<string>` | Allowed sandbox modes to apply when this host-specific entry matches. |

2985| `remote_sandbox_config[].hostname_patterns` | `array<string>` | Case-insensitive host name patterns. Supports `*` for any sequence of characters and `?` for one character. |

2778| `rules` | `table` | Admin-enforced command rules merged with `.rules` files. Requirements rules must be restrictive. |2986| `rules` | `table` | Admin-enforced command rules merged with `.rules` files. Requirements rules must be restrictive. |

2779| `rules.prefix_rules` | `array<table>` | List of enforced prefix rules. Each rule must include `pattern` and `decision`. |2987| `rules.prefix_rules` | `array<table>` | List of enforced prefix rules. Each rule must include `pattern` and `decision`. |

2780| `rules.prefix_rules[].decision` | `prompt | forbidden` | Required. Requirements rules can only prompt or forbid (not allow). |2988| `rules.prefix_rules[].decision` | `prompt | forbidden` | Required. Requirements rules can only prompt or forbid (not allow). |

2805 3013 

2806Details3014Details

2807 3015 

2808Allowed values for `approvals_reviewer` (for example `user` and `guardian_subagent`).3016Allowed values for `approvals_reviewer`, such as `user` and `auto_review`.

2809 3017 

2810Key3018Key

2811 3019 

2857 3065 

2858Key3066Key

2859 3067 

3068`features.browser_use`

3069 

3070Type / Values

3071 

3072`boolean`

3073 

3074Details

3075 

3076Set to `false` in `requirements.toml` to disable Browser Use and Browser Agent availability.

3077 

3078Key

3079 

3080`features.computer_use`

3081 

3082Type / Values

3083 

3084`boolean`

3085 

3086Details

3087 

3088Set to `false` in `requirements.toml` to disable Computer Use availability and related install or enablement flows.

3089 

3090Key

3091 

3092`features.in_app_browser`

3093 

3094Type / Values

3095 

3096`boolean`

3097 

3098Details

3099 

3100Set to `false` in `requirements.toml` to disable the in-app browser pane.

3101 

3102Key

3103 

3104`guardian_policy_config`

3105 

3106Type / Values

3107 

3108`string`

3109 

3110Details

3111 

3112Managed Markdown policy instructions for automatic review. This takes precedence over local `[auto_review].policy`. Blank values are ignored.

3113 

3114Key

3115 

3116`hooks`

3117 

3118Type / Values

3119 

3120`table`

3121 

3122Details

3123 

3124Admin-enforced managed lifecycle hooks. Requires a managed hook directory and uses the same event schema as inline `[hooks]` in `config.toml`.

3125 

3126Key

3127 

3128`hooks.<Event>`

3129 

3130Type / Values

3131 

3132`array<table>`

3133 

3134Details

3135 

3136Matcher groups for a hook event such as `PreToolUse`, `PostToolUse`, `PermissionRequest`, `SessionStart`, `UserPromptSubmit`, or `Stop`.

3137 

3138Key

3139 

3140`hooks.<Event>[].hooks`

3141 

3142Type / Values

3143 

3144`array<table>`

3145 

3146Details

3147 

3148Hook handlers for a matcher group. Command hooks are currently supported; prompt and agent hook handlers are parsed but skipped.

3149 

3150Key

3151 

3152`hooks.managed_dir`

3153 

3154Type / Values

3155 

3156`string (absolute path)`

3157 

3158Details

3159 

3160Directory containing managed hook scripts on macOS and Linux. Codex validates that it is absolute and exists before loading managed hooks.

3161 

3162Key

3163 

3164`hooks.windows_managed_dir`

3165 

3166Type / Values

3167 

3168`string (absolute path)`

3169 

3170Details

3171 

3172Directory containing managed hook scripts on Windows. Codex validates that it is absolute and exists before loading managed hooks.

3173 

3174Key

3175 

2860`mcp_servers`3176`mcp_servers`

2861 3177 

2862Type / Values3178Type / Values

2905 3221 

2906Key3222Key

2907 3223 

3224`permissions.filesystem.deny_read`

3225 

3226Type / Values

3227 

3228`array<string>`

3229 

3230Details

3231 

3232Admin-enforced filesystem read denials. Entries can be paths or glob patterns, and users cannot weaken them with local config.

3233 

3234Key

3235 

3236`remote_sandbox_config`

3237 

3238Type / Values

3239 

3240`array<table>`

3241 

3242Details

3243 

3244Host-specific sandbox requirements. The first entry whose `hostname_patterns` match the resolved host name overrides top-level `allowed_sandbox_modes` for that requirements source. Host-specific entries currently override sandbox modes only.

3245 

3246Key

3247 

3248`remote_sandbox_config[].allowed_sandbox_modes`

3249 

3250Type / Values

3251 

3252`array<string>`

3253 

3254Details

3255 

3256Allowed sandbox modes to apply when this host-specific entry matches.

3257 

3258Key

3259 

3260`remote_sandbox_config[].hostname_patterns`

3261 

3262Type / Values

3263 

3264`array<string>`

3265 

3266Details

3267 

3268Case-insensitive host name patterns. Supports `*` for any sequence of characters and `?` for one character.

3269 

3270Key

3271 

2908`rules`3272`rules`

2909 3273 

2910Type / Values3274Type / Values