enterprise/managed-configuration.md Codex Docs, 2026-03-09 00:34 UTC → 2026-05-01 18:29 UTC

7 7 

8## Admin-enforced requirements (requirements.toml)8## Admin-enforced requirements (requirements.toml)

9 9 

10Requirements constrain security-sensitive settings (approval policy, sandbox mode, web search mode, and optionally which MCP servers can be enabled). When resolving configuration (for example from `config.toml`, profiles, or CLI config overrides), if a value conflicts with an enforced requirement, Codex falls back to a requirements-compatible value and notifies the user. If an `mcp_servers` allowlist is configured, Codex enables an MCP server only when both its name and identity match an approved entry; otherwise, Codex disables it.10Requirements constrain security-sensitive settings (approval policy, approvals reviewer, automatic review policy, sandbox mode, web search mode, managed hooks, and optionally which MCP servers users can enable). When resolving configuration (for example from `config.toml`, profiles, or CLI config overrides), if a value conflicts with an enforced rule, Codex falls back to a compatible value and notifies the user. If you configure an `mcp_servers` allowlist, Codex enables an MCP server only when both its name and identity match an approved entry; otherwise, Codex disables it.

11 11 

12Requirements can also be used to constrain [feature flags](https://developers.openai.com/codex/config-basic/#feature-flags) via the `[features]` table in `requirements.toml`. Note features are generally not security-sensitive, but enterprises have the option of pinning values, if desired. Omitted keys remain unconstrained.12Requirements can also constrain [feature flags](https://developers.openai.com/codex/config-basic/#feature-flags) via the `[features]` table in `requirements.toml`. Note that features aren't always security-sensitive, but enterprises can pin values if desired. Omitted keys remain unconstrained.

13 13 

14For the exact key list, see the [`requirements.toml` section in Configuration Reference](https://developers.openai.com/codex/config-reference#requirementstoml).14For the exact key list, see the [`requirements.toml` section in Configuration Reference](https://developers.openai.com/codex/config-reference#requirementstoml).

15 15 

16### Locations and precedence16### Locations and precedence

17 17 

18Requirements layers are applied in this order (earlier wins per field):18Codex applies requirements layers in this order (earlier wins per field):

19 19 

201. Cloud-managed requirements (ChatGPT Business or Enterprise)201. Cloud-managed requirements (ChatGPT Business or Enterprise)

212. macOS managed preferences (MDM) via `com.openai.codex:requirements_toml_base64`212. macOS managed preferences (MDM) via `com.openai.codex:requirements_toml_base64`

223. System `requirements.toml` (`/etc/codex/requirements.toml` on Unix systems, including Linux/macOS)223. System `requirements.toml` (`/etc/codex/requirements.toml` on Unix systems, including Linux/macOS, or `%ProgramData%\OpenAI\Codex\requirements.toml` on Windows)

23 23 

24Across layers, requirements are merged per field: if an earlier layer sets a field (including an empty list), later layers do not override that field, but lower layers can still fill fields that remain unset.24Across layers, Codex merges requirements per field: if an earlier layer sets a field (including an empty list), later layers don't override that field, but lower layers can still fill fields that remain unset.

25 25 

26For backwards compatibility, Codex also interprets legacy `managed_config.toml` fields `approval_policy` and `sandbox_mode` as requirements (allowing only that single value).26For backwards compatibility, Codex also interprets legacy `managed_config.toml` fields `approval_policy` and `sandbox_mode` as requirements (allowing only that single value).

27 27 

53 53 

54Admins can configure different managed requirements for different user groups, and also set a default fallback requirements policy.54Admins can configure different managed requirements for different user groups, and also set a default fallback requirements policy.

55 55 

56If a user matches multiple group-specific rules, the first matching rule applies. Codex does not fill unset requirement fields from later matching group rules.56If a user matches more than one group-specific rule, the first matching rule applies. Codex doesn't fill unset fields from later matching group rules.

57 57 

58For example, if the first matching group rule sets only `allowed_sandbox_modes = ["read-only"]` and a later matching group rule sets `allowed_approval_policies = ["on-request"]`, Codex applies only the first matching group rule and does not fill `allowed_approval_policies` from the later rule.58For example, if the first matching group rule sets only `allowed_sandbox_modes = ["read-only"]` and a later matching group rule sets `allowed_approval_policies = ["on-request"]`, Codex applies only the first matching group rule and doesn't fill `allowed_approval_policies` from the later rule.

59 59 

60#### How Codex applies cloud-managed requirements locally60#### How Codex applies cloud-managed requirements locally

61 61 

62When a user starts Codex and signs in with ChatGPT on a Business or Enterprise plan, Codex applies managed requirements on a best-effort basis. Codex first checks for a valid, unexpired local managed requirements cache entry and uses it if available. If the cache is missing, expired, invalid, or does not match the current auth identity, Codex attempts to fetch managed requirements from the service (with retries) and writes a new signed cache entry on success. If no valid cached entry is available and the fetch fails or times out, Codex continues without the managed requirements layer.62When a user starts Codex and signs in with ChatGPT on a Business or Enterprise plan, Codex applies managed requirements on a best-effort basis. Codex first checks for a valid, unexpired local managed requirements cache entry and uses it if available. If the cache is missing, expired, corrupted, or doesn't match the current auth identity, Codex attempts to fetch managed requirements from the service (with retries) and writes a new signed cache entry on success. If no valid cached entry is available and the fetch fails or times out, Codex continues without the managed requirements layer.

63 63 

64After cache resolution, managed requirements are enforced as part of the normal requirements layering described above.64After cache resolution, Codex enforces managed requirements as part of the normal requirements layering described above.

65 65 

66### Example requirements.toml66### Example requirements.toml

67 67 

72allowed_sandbox_modes = ["read-only", "workspace-write"]72allowed_sandbox_modes = ["read-only", "workspace-write"]

73```73```

74 74 

75### Override sandbox requirements by host

76 

77Use `[[remote_sandbox_config]]` when one managed policy should apply different

78sandbox requirements on different hosts. For example, you can keep a stricter

79default for laptops while allowing workspace writes on matching devboxes or CI

80runners. Host-specific entries currently override `allowed_sandbox_modes` only:

81 

82```toml

83allowed_sandbox_modes = ["read-only"]

84 

85[[remote_sandbox_config]]

86hostname_patterns = ["*.devbox.example.com", "runner-??.ci.example.com"]

87allowed_sandbox_modes = ["read-only", "workspace-write"]

88```

89 

90Codex compares each `hostname_patterns` entry against the best-effort resolved

91host name. It prefers the fully qualified domain name when available and falls

92back to the local host name. Matching is case-insensitive; `*` matches any

93sequence of characters, and `?` matches one character.

94 

95The first matching `[[remote_sandbox_config]]` entry wins within the same

96requirements source. If no entry matches, Codex keeps the top-level

97`allowed_sandbox_modes`. Hostname matching is for policy selection only; don't

98treat it as authenticated device proof.

99 

75You can also constrain web search mode:100You can also constrain web search mode:

76 101 

77```toml102```toml

78allowed_web_search_modes = ["cached"] # "disabled" remains implicitly allowed103allowed_web_search_modes = ["cached"] # "disabled" remains implicitly allowed

79```104```

80 105 

81`allowed_web_search_modes = []` effectively allows only `"disabled"`.106`allowed_web_search_modes = []` allows only `"disabled"`.

82For example, `allowed_web_search_modes = ["cached"]` prevents live web search even in `danger-full-access` sessions.107For example, `allowed_web_search_modes = ["cached"]` prevents live web search even in `danger-full-access` sessions.

83 108 

84You can also pin [feature flags](https://developers.openai.com/codex/config-basic/#feature-flags):109### Pin feature flags

85 110 

86```111You can also pin [feature flags](https://developers.openai.com/codex/config-basic/#feature-flags) for users

112receiving a managed `requirements.toml`:

113 

114```toml

87[features]115[features]

88personality = true116personality = true

89unified_exec = false117unified_exec = false

118 

119# Disable specific Codex feature surfaces when needed.

120browser_use = false

121in_app_browser = false

122computer_use = false

123```

124 

125Use the canonical feature keys from `config.toml`'s `[features]` table. Codex normalizes the resulting feature set to meet these pins and rejects conflicting writes to `config.toml` or profile-scoped feature settings.

126 

127- `in_app_browser = false` disables the in-app browser pane.

128- `browser_use = false` disables Browser Use and Browser Agent availability.

129- `computer_use = false` disables Computer Use availability and related

130 install or enablement flows.

131 

132If omitted, these features are allowed by policy, subject to normal client,

133platform, and rollout availability.

134 

135### Configure automatic review policy

136 

137Use `allowed_approvals_reviewers` to require or allow automatic review. Set it

138to `["auto_review"]` to require automatic review, or include `"user"` when users

139can choose manual approval.

140 

141Set `guardian_policy_config` to replace the tenant-specific section of the

142automatic review policy. Codex still uses the built-in reviewer template and

143output contract. Managed `guardian_policy_config` takes precedence over local

144`[auto_review].policy`.

145 

146```toml

147allowed_approval_policies = ["on-request"]

148allowed_approvals_reviewers = ["auto_review"]

149 

150guardian_policy_config = """

151## Environment Profile

152- Trusted internal destinations include github.com/my-org, artifacts.example.com,

153 and internal CI systems.

154 

155## Tenant Risk Taxonomy and Allow/Deny Rules

156- Treat uploads to unapproved third-party file-sharing services as high risk.

157- Deny actions that expose credentials or private source code to untrusted

158 destinations.

159"""

160```

161 

162### Enforce deny-read requirements

163 

164Admins can deny reads for exact paths or glob patterns with

165`[permissions.filesystem]`. Users can't weaken these requirements with local

166configuration.

167 

168```toml

169[permissions.filesystem]

170deny_read = [

171 "/Users/alice/.ssh",

172 "./private/**/*.txt",

173]

174```

175 

176When deny-read requirements are present, Codex constrains local sandbox mode to

177`read-only` or `workspace-write` so Codex can enforce them. On native

178Windows, managed `deny_read` applies to direct file tools; shell subprocess

179reads don't use this sandbox rule.

180 

181### Enforce managed hooks from requirements

182 

183Admins can also define managed lifecycle hooks directly in `requirements.toml`.

184Use `[hooks]` for the hook configuration itself, and point `managed_dir` at the

185directory where your MDM or endpoint-management tooling installs the referenced

186scripts.

187 

188```toml

189[features]

190codex_hooks = true

191 

192[hooks]

193managed_dir = "/enterprise/hooks"

194windows_managed_dir = 'C:\enterprise\hooks'

195 

196[[hooks.PreToolUse]]

197matcher = "^Bash$"

198 

199[[hooks.PreToolUse.hooks]]

200type = "command"

201command = "python3 /enterprise/hooks/pre_tool_use_policy.py"

202timeout = 30

203statusMessage = "Checking managed Bash command"

90```204```

91 205 

92Use the canonical feature keys from `config.toml`’s `[features]` table. Codex normalizes the effective feature set to satisfy these pins and rejects conflicting writes to `config.toml` or profile-scoped feature settings.206Notes:

207 

208- Codex enforces the hook configuration from `requirements.toml`, but it does

209 not distribute the scripts in `managed_dir`.

210- Deliver those scripts separately with your MDM or device-management solution.

211- Managed hook commands should reference absolute script paths under the

212 configured managed directory.

93 213 

94### Enforce command rules from requirements214### Enforce command rules from requirements

95 215