Add allow_managed_hooks_only hook requirement (#20319)

## Why

Enterprise-managed hook policy needs a narrow way to require Codex to
ignore user-controlled lifecycle hooks without adopting the broader
trust-precedence model from earlier hook work. This keeps the policy
anchored in `requirements.toml`, so admins can opt into managed hooks
only while normal `config.toml` files cannot enable the restriction
themselves.

## What changed

- Added `allow_managed_hooks_only` to the requirements data flow and
preserved explicit `false` values.
- Also adds it to /debug-config
- Marked MDM, system, and legacy managed config layers as managed for
hook discovery.
- Updated hook discovery so `allow_managed_hooks_only = true`:
  - keeps managed requirements hooks and managed config-layer hooks,
- skips user/project/session `hooks.json` and `[hooks]` entries with
concise startup warnings,
  - skips current unmanaged plugin hooks,
- ignores any `allow_managed_hooks_only` key placed in ordinary
`config.toml` layers.
This commit is contained in:
Andrei Eternal
2026-05-12 19:05:25 -07:00
committed by GitHub
parent fbfbfe5fc5
commit 913aad4d3c
17 changed files with 650 additions and 68 deletions
@@ -87,6 +87,7 @@ pub struct ConfigRequirements {
pub approvals_reviewer: ConstrainedWithSource<ApprovalsReviewer>,
pub permission_profile: ConstrainedWithSource<PermissionProfile>,
pub web_search_mode: ConstrainedWithSource<WebSearchMode>,
pub allow_managed_hooks_only: Option<Sourced<bool>>,
pub feature_requirements: Option<Sourced<FeatureRequirementsToml>>,
pub managed_hooks: Option<ConstrainedWithSource<ManagedHooksRequirementsToml>>,
pub mcp_servers: Option<Sourced<BTreeMap<String, McpServerRequirement>>>,
@@ -120,6 +121,7 @@ impl Default for ConfigRequirements {
Constrained::allow_any(WebSearchMode::Cached),
/*source*/ None,
),
allow_managed_hooks_only: None,
feature_requirements: None,
managed_hooks: None,
mcp_servers: None,
@@ -688,6 +690,7 @@ pub struct ConfigRequirementsToml {
pub allowed_sandbox_modes: Option<Vec<SandboxModeRequirement>>,
pub remote_sandbox_config: Option<Vec<RemoteSandboxConfigToml>>,
pub allowed_web_search_modes: Option<Vec<WebSearchModeRequirement>>,
pub allow_managed_hooks_only: Option<bool>,
#[serde(rename = "features", alias = "feature_requirements")]
pub feature_requirements: Option<FeatureRequirementsToml>,
pub hooks: Option<ManagedHooksRequirementsToml>,
@@ -736,6 +739,7 @@ pub struct ConfigRequirementsWithSources {
pub allowed_approvals_reviewers: Option<Sourced<Vec<ApprovalsReviewer>>>,
pub allowed_sandbox_modes: Option<Sourced<Vec<SandboxModeRequirement>>>,
pub allowed_web_search_modes: Option<Sourced<Vec<WebSearchModeRequirement>>>,
pub allow_managed_hooks_only: Option<Sourced<bool>>,
pub feature_requirements: Option<Sourced<FeatureRequirementsToml>>,
pub hooks: Option<Sourced<ManagedHooksRequirementsToml>>,
pub mcp_servers: Option<Sourced<BTreeMap<String, McpServerRequirement>>>,
@@ -772,6 +776,7 @@ impl ConfigRequirementsWithSources {
allowed_sandbox_modes: _,
remote_sandbox_config: _,
allowed_web_search_modes: _,
allow_managed_hooks_only: _,
feature_requirements: _,
hooks: _,
mcp_servers: _,
@@ -801,6 +806,7 @@ impl ConfigRequirementsWithSources {
allowed_approvals_reviewers,
allowed_sandbox_modes,
allowed_web_search_modes,
allow_managed_hooks_only,
feature_requirements,
hooks,
mcp_servers,
@@ -828,6 +834,7 @@ impl ConfigRequirementsWithSources {
allowed_approvals_reviewers,
allowed_sandbox_modes,
allowed_web_search_modes,
allow_managed_hooks_only,
feature_requirements,
hooks,
mcp_servers,
@@ -845,6 +852,7 @@ impl ConfigRequirementsWithSources {
allowed_sandbox_modes: allowed_sandbox_modes.map(|sourced| sourced.value),
remote_sandbox_config: None,
allowed_web_search_modes: allowed_web_search_modes.map(|sourced| sourced.value),
allow_managed_hooks_only: allow_managed_hooks_only.map(|sourced| sourced.value),
feature_requirements: feature_requirements.map(|sourced| sourced.value),
hooks: hooks.map(|sourced| sourced.value),
mcp_servers: mcp_servers.map(|sourced| sourced.value),
@@ -928,6 +936,7 @@ impl ConfigRequirementsToml {
&& self.allowed_sandbox_modes.is_none()
&& self.remote_sandbox_config.is_none()
&& self.allowed_web_search_modes.is_none()
&& self.allow_managed_hooks_only.is_none()
&& self
.feature_requirements
.as_ref()
@@ -965,6 +974,7 @@ impl TryFrom<ConfigRequirementsWithSources> for ConfigRequirements {
allowed_approvals_reviewers,
allowed_sandbox_modes,
allowed_web_search_modes,
allow_managed_hooks_only,
feature_requirements,
hooks,
mcp_servers,
@@ -1200,6 +1210,7 @@ impl TryFrom<ConfigRequirementsWithSources> for ConfigRequirements {
approvals_reviewer,
permission_profile,
web_search_mode,
allow_managed_hooks_only,
feature_requirements,
managed_hooks,
mcp_servers,
@@ -1272,6 +1283,7 @@ mod tests {
allowed_sandbox_modes,
remote_sandbox_config: _,
allowed_web_search_modes,
allow_managed_hooks_only,
feature_requirements,
hooks,
mcp_servers,
@@ -1292,6 +1304,8 @@ mod tests {
.map(|value| Sourced::new(value, RequirementSource::Unknown)),
allowed_web_search_modes: allowed_web_search_modes
.map(|value| Sourced::new(value, RequirementSource::Unknown)),
allow_managed_hooks_only: allow_managed_hooks_only
.map(|value| Sourced::new(value, RequirementSource::Unknown)),
feature_requirements: feature_requirements
.map(|value| Sourced::new(value, RequirementSource::Unknown)),
hooks: hooks.map(|value| Sourced::new(value, RequirementSource::Unknown)),
@@ -1308,6 +1322,32 @@ mod tests {
}
}
#[test]
fn deserialize_allow_managed_hooks_only() -> Result<()> {
let requirements: ConfigRequirementsToml = from_str(
r#"
allow_managed_hooks_only = true
"#,
)?;
assert_eq!(requirements.allow_managed_hooks_only, Some(true));
assert!(!requirements.is_empty());
Ok(())
}
#[test]
fn allow_managed_hooks_only_false_is_still_configured() -> Result<()> {
let requirements: ConfigRequirementsToml = from_str(
r#"
allow_managed_hooks_only = false
"#,
)?;
assert_eq!(requirements.allow_managed_hooks_only, Some(false));
assert!(!requirements.is_empty());
Ok(())
}
#[test]
fn merge_unset_fields_copies_every_field_and_sets_sources() {
let mut target = ConfigRequirementsWithSources::default();
@@ -1339,6 +1379,7 @@ mod tests {
allowed_sandbox_modes: Some(allowed_sandbox_modes.clone()),
remote_sandbox_config: None,
allowed_web_search_modes: Some(allowed_web_search_modes.clone()),
allow_managed_hooks_only: Some(true),
feature_requirements: Some(feature_requirements.clone()),
hooks: None,
mcp_servers: None,
@@ -1369,6 +1410,10 @@ mod tests {
allowed_web_search_modes,
enforce_source.clone(),
)),
allow_managed_hooks_only: Some(Sourced::new(
/*value*/ true,
enforce_source.clone(),
)),
feature_requirements: Some(Sourced::new(
feature_requirements,
enforce_source.clone(),
@@ -1411,6 +1456,7 @@ mod tests {
allowed_approvals_reviewers: None,
allowed_sandbox_modes: None,
allowed_web_search_modes: None,
allow_managed_hooks_only: None,
feature_requirements: None,
hooks: None,
mcp_servers: None,
@@ -1458,6 +1504,7 @@ mod tests {
allowed_approvals_reviewers: None,
allowed_sandbox_modes: None,
allowed_web_search_modes: None,
allow_managed_hooks_only: None,
feature_requirements: None,
hooks: None,
mcp_servers: None,