config-sample.md Codex Docs, 2026-04-23 00:46 UTC → 2026-04-29 00:50 UTC

27# Core Model Selection27# Core Model Selection

28################################################################################28################################################################################

29 29 

30# Primary model used by Codex. Recommended example for most users: "gpt-5.4".30# Primary model used by Codex. Recommended example for most users: "gpt-5.5".

31model = "gpt-5.4"31model = "gpt-5.5"

32 32 

33# Communication style for supported models. Allowed values: none | friendly | pragmatic33# Communication style for supported models. Allowed values: none | friendly | pragmatic

34# personality = "pragmatic"34# personality = "pragmatic"

35 35 

36# Optional model override for /review. Default: unset (uses current session model).36# Optional model override for /review. Default: unset (uses current session model).

37# review_model = "gpt-5.4"37# review_model = "gpt-5.5"

38 38 

39# Provider id selected from [model_providers]. Default: "openai".39# Provider id selected from [model_providers]. Default: "openai".

40model_provider = "openai"40model_provider = "openai"

109# - never: never prompt (risky)109# - never: never prompt (risky)

110# - { granular = { ... } }: allow or auto-reject selected prompt categories110# - { granular = { ... } }: allow or auto-reject selected prompt categories

111approval_policy = "on-request"111approval_policy = "on-request"

112# Who reviews eligible approval prompts: user (default) | guardian_subagent112# Who reviews eligible approval prompts: user (default) | auto_review

113# approvals_reviewer = "user"113# approvals_reviewer = "user"

114 114 

115# Example granular policy:115# Example granular policy:

393# multi_agent = true393# multi_agent = true

394# personality = true394# personality = true

395# fast_mode = true395# fast_mode = true

396# guardian_approval = false

397# enable_request_compression = true396# enable_request_compression = true

398# skill_mcp_dependency_install = true397# skill_mcp_dependency_install = true

399# prevent_idle_sleep = false398# prevent_idle_sleep = false

408# use_memories = true407# use_memories = true

409# disable_on_external_context = false # legacy alias: no_memories_if_mcp_or_web_search408# disable_on_external_context = false # legacy alias: no_memories_if_mcp_or_web_search

410 409 

410################################################################################

411# Lifecycle hooks can be configured here inline or in a sibling hooks.json.

412################################################################################

413 

414# [hooks]

415# [[hooks.PreToolUse]]

416# matcher = "^Bash$"

417#

418# [[hooks.PreToolUse.hooks]]

419# type = "command"

420# command = 'python3 "/absolute/path/to/pre_tool_use_policy.py"'

421# timeout = 30

422# statusMessage = "Checking Bash command"

423 

411################################################################################424################################################################################

412# Define MCP servers under this table. Leave empty to disable.425# Define MCP servers under this table. Leave empty to disable.

413################################################################################426################################################################################