config-sample.md Codex Docs, 2026-02-20 12:16 UTC → 2026-02-24 06:27 UTC

7- [Config basics](https://developers.openai.com/codex/config-basic)7- [Config basics](https://developers.openai.com/codex/config-basic)

8- [Advanced Config](https://developers.openai.com/codex/config-advanced)8- [Advanced Config](https://developers.openai.com/codex/config-advanced)

9- [Config Reference](https://developers.openai.com/codex/config-reference)9- [Config Reference](https://developers.openai.com/codex/config-reference)

10- [Sandbox and approvals](https://developers.openai.com/codex/security#sandbox-and-approvals)

11- [Managed configuration](https://developers.openai.com/codex/security#managed-configuration)

10 12 

11Use the snippet below as a reference. Copy only the keys and sections you need into `~/.codex/config.toml` (or into a project-scoped `.codex/config.toml`), then adjust values for your setup.13Use the snippet below as a reference. Copy only the keys and sections you need into `~/.codex/config.toml` (or into a project-scoped `.codex/config.toml`), then adjust values for your setup.

12 14 

47# model_context_window = 128000 # tokens; default: auto for model49# model_context_window = 128000 # tokens; default: auto for model

48# model_auto_compact_token_limit = 0 # tokens; unset uses model defaults50# model_auto_compact_token_limit = 0 # tokens; unset uses model defaults

49# tool_output_token_limit = 10000 # tokens stored per tool output; default: 10000 for gpt-5.2-codex51# tool_output_token_limit = 10000 # tokens stored per tool output; default: 10000 for gpt-5.2-codex

52# model_catalog_json = "/absolute/path/to/models.json" # optional startup-only model catalog override

53# background_terminal_max_timeout = 300000 # ms; max empty write_stdin poll window (default 5m)

50# log_dir = "/absolute/path/to/codex-logs" # directory for Codex logs; default: "$CODEX_HOME/log"54# log_dir = "/absolute/path/to/codex-logs" # directory for Codex logs; default: "$CODEX_HOME/log"

51 55 

52################################################################################56################################################################################

105# - untrusted: only known-safe read-only commands auto-run; others prompt109# - untrusted: only known-safe read-only commands auto-run; others prompt

106# - on-request: model decides when to ask (default)110# - on-request: model decides when to ask (default)

107# - never: never prompt (risky)111# - never: never prompt (risky)

112# - { reject = { ... } }: auto-reject selected prompt categories

108approval_policy = "on-request"113approval_policy = "on-request"

114# Example granular auto-reject policy:

115# approval_policy = { reject = { sandbox_approval = true, rules = false, mcp_elicitations = false } }

116 

117# Allow login-shell semantics for shell-based tools when they request `login = true`.

118# Default: true. Set false to force non-login shells and reject explicit login-shell requests.

119allow_login_shell = true

109 120 

110# Filesystem/network sandbox policy for tool calls:121# Filesystem/network sandbox policy for tool calls:

111# - read-only (default)122# - read-only (default)

136# Optional fixed port for MCP OAuth callback: 1-65535. Default: unset.147# Optional fixed port for MCP OAuth callback: 1-65535. Default: unset.

137# mcp_oauth_callback_port = 4321148# mcp_oauth_callback_port = 4321

138 149 

150# Optional redirect URI override for MCP OAuth login (for example, remote devbox ingress).

151# Custom callback paths are supported. `mcp_oauth_callback_port` still controls the listener port.

152# mcp_oauth_callback_url = "https://devbox.example.internal/callback"

153 

139################################################################################154################################################################################

140# Project Documentation Controls155# Project Documentation Controls

141################################################################################156################################################################################

192# Active profile name. When unset, no profile is applied.207# Active profile name. When unset, no profile is applied.

193# profile = "default"208# profile = "default"

194 209 

210################################################################################

211# Agents (multi-agent roles and limits)

212################################################################################

213 

214# [agents]

215# Maximum concurrently open agent threads. Default: 6

216# max_threads = 6

217# Maximum nested spawn depth. Root session starts at depth 0. Default: 1

218# max_depth = 1

219 

220# [agents.reviewer]

221# description = "Find security, correctness, and test risks in code."

222# config_file = "./agents/reviewer.toml" # relative to the config.toml that defines it

223 

195################################################################################224################################################################################

196# Skills (per-skill overrides)225# Skills (per-skill overrides)

197################################################################################226################################################################################

274# Control alternate screen usage (auto skips it in Zellij to preserve scrollback).303# Control alternate screen usage (auto skips it in Zellij to preserve scrollback).

275# alternate_screen = "auto"304# alternate_screen = "auto"

276 305 

277# Ordered list of footer status-line item IDs. Default: null (disabled).306# Ordered list of footer status-line item IDs. When unset, Codex uses:

307# ["model-with-reasoning", "context-remaining", "current-dir"].

308# Set to [] to hide the footer.

278# status_line = ["model", "context-remaining", "git-branch"]309# status_line = ["model", "context-remaining", "git-branch"]

279 310 

311# Syntax-highlighting theme (kebab-case). Use /theme in the TUI to preview and save.

312# You can also add custom .tmTheme files under $CODEX_HOME/themes.

313# theme = "catppuccin-mocha"

314 

280# Control whether users can submit feedback from `/feedback`. Default: true315# Control whether users can submit feedback from `/feedback`. Default: true

281[feedback]316[feedback]

282enabled = true317enabled = true

299 334 

300[features]335[features]

301# Leave this table empty to accept defaults. Set explicit booleans to opt in/out.336# Leave this table empty to accept defaults. Set explicit booleans to opt in/out.

302shell_tool = true337# shell_tool = true

303# apps = false338# apps = false

304# apps_mcp_gateway = false339# apps_mcp_gateway = false

305# Deprecated legacy toggles; prefer the top-level `web_search` setting.

306# web_search = false

307# web_search_cached = false340# web_search_cached = false

308# web_search_request = false341# web_search_request = false

309unified_exec = false342# unified_exec = false

310shell_snapshot = false343# shell_snapshot = false

311apply_patch_freeform = false344# apply_patch_freeform = false

345# multi_agent = false

312# search_tool = false346# search_tool = false

313# personality = true347# personality = true

314request_rule = true348# request_rule = true

315collaboration_modes = true349# collaboration_modes = true

316use_linux_sandbox_bwrap = false350# use_linux_sandbox_bwrap = false

317experimental_windows_sandbox = false351# remote_models = false

318elevated_windows_sandbox = false352# runtime_metrics = false

319remote_models = false353# powershell_utf8 = true

320runtime_metrics = false354# child_agents_md = false

321powershell_utf8 = true

322child_agents_md = false

323 355 

324################################################################################356################################################################################

325# Define MCP servers under this table. Leave empty to disable.357# Define MCP servers under this table. Leave empty to disable.

409# model_verbosity = "medium"441# model_verbosity = "medium"

410# personality = "friendly" # or "pragmatic" or "none"442# personality = "friendly" # or "pragmatic" or "none"

411# chatgpt_base_url = "https://chatgpt.com/backend-api/"443# chatgpt_base_url = "https://chatgpt.com/backend-api/"

444# model_catalog_json = "./models.json"

412# experimental_compact_prompt_file = "./compact_prompt.txt"445# experimental_compact_prompt_file = "./compact_prompt.txt"

413# include_apply_patch_tool = false446# include_apply_patch_tool = false

414# experimental_use_unified_exec_tool = false447# experimental_use_unified_exec_tool = false

422 455 

423# Optional per-app controls.456# Optional per-app controls.

424[apps]457[apps]

458# [_default] applies to all apps unless overridden per app.

459# [apps._default]

460# enabled = true

461# destructive_enabled = true

462# open_world_enabled = true

463#

425# [apps.google_drive]464# [apps.google_drive]

426# enabled = false465# enabled = false

427# disabled_reason = "user" # or "unknown"466# destructive_enabled = false # block destructive-hint tools for this app

467# default_tools_enabled = true

468# default_tools_approval_mode = "prompt" # auto | prompt | approve

469#

470# [apps.google_drive.tools."files/delete"]

471# enabled = false

472# approval_mode = "approve"

428 473 

429################################################################################474################################################################################

430# Projects (trust levels)475# Projects (trust levels)

475# client-certificate = "/etc/codex/certs/client.pem"520# client-certificate = "/etc/codex/certs/client.pem"

476# client-private-key = "/etc/codex/certs/client-key.pem"521# client-private-key = "/etc/codex/certs/client-key.pem"

477```522```

523 

524################################################################################

525 

526# Windows

527 

528################################################################################

529 

530[windows]

531 

532# Native Windows sandbox mode (Windows only): unelevated | elevated

533 

534sandbox = "unelevated"