Files
codex/codex-rs/core/src/session/mod.rs
T
Ahmed Ibrahim ba4925b3c2 [codex] Compact when comp_hash changes (#27520)
## Summary
- snapshot `comp_hash` into `TurnContext` when the turn is created and
use that snapshot as the downstream source of truth
- persist the turn hash in rollout context and recover it into
previous-turn settings during resume and fork replay
- compact existing history with the previous model only when both
adjacent turns provide hashes and the values differ
- record `comp_hash_changed` as the compaction reason
- cover ordinary transitions, resume, and missing-hash compatibility
with end-to-end tests

## Why
History produced under one compaction-compatible model configuration may
not be safe to carry directly into another. Compacting at the turn
boundary converts that history before context updates and the new user
message are added. Persisting the turn snapshot in `TurnContextItem`
makes the same protection work after resuming a rollout.

A missing hash is not treated as evidence of incompatibility. `None →
Some`, `Some → None`, and `None → None` do not trigger compaction; only
`Some(previous) → Some(current)` with unequal values does.

## Stack
- depends on #27532
- #27532 is based directly on `main`

## Testing
- `just test -p codex-core pre_sampling_compact_` — 6 passed
- `just test -p codex-core
turn_context_item_uses_turn_context_comp_hash_snapshot` — passed
- `just fix -p codex-core -p codex-protocol -p codex-analytics -p
codex-models-manager`
2026-06-11 04:11:26 +00:00

3543 lines
133 KiB
Rust

use std::borrow::Cow;
use std::collections::BTreeMap;
use std::collections::HashMap;
use std::collections::HashSet;
use std::fmt::Debug;
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use std::sync::atomic::AtomicU64;
use std::time::SystemTime;
use std::time::UNIX_EPOCH;
use crate::agent::AgentControl;
use crate::agent::AgentStatus;
use crate::agent::agent_status_from_event;
use crate::agent::status::is_final;
use crate::attestation::AttestationProvider;
use crate::build_available_skills;
use crate::compact;
use crate::config::ManagedFeatures;
use crate::config::resolve_tool_suggest_config_from_layer_stack;
use crate::connectors;
use crate::context::ApprovedCommandPrefixSaved;
use crate::context::AppsInstructions;
use crate::context::AvailablePluginsInstructions;
use crate::context::AvailableSkillsInstructions;
use crate::context::CollaborationModeInstructions;
use crate::context::ContextualUserFragment;
use crate::context::NetworkRuleSaved;
use crate::context::PermissionsInstructions;
use crate::context::PersonalitySpecInstructions;
use crate::default_skill_metadata_budget;
use crate::environment_selection::ResolvedTurnEnvironments;
use crate::exec_policy::ExecPolicyManager;
use crate::image_preparation::prepare_response_items;
use crate::parse_turn_item;
use crate::realtime_conversation::RealtimeConversationManager;
use crate::session_prefix::format_subagent_notification_message;
use crate::skills::SkillRenderSideEffects;
use crate::skills_load_input_from_config;
use crate::turn_metadata::TurnMetadataState;
use crate::turn_timing::now_unix_timestamp_ms;
use async_channel::Receiver;
use async_channel::Sender;
use chrono::Local;
use chrono::Utc;
use codex_analytics::AnalyticsEventsClient;
use codex_analytics::SubAgentThreadStartedInput;
use codex_analytics::TurnCodexErrorFact;
use codex_app_server_protocol::McpServerElicitationRequest;
use codex_app_server_protocol::McpServerElicitationRequestParams;
use codex_config::types::OAuthCredentialsStoreMode;
use codex_exec_server::Environment;
use codex_exec_server::EnvironmentManager;
use codex_exec_server::FileSystemSandboxContext;
use codex_extension_api::ExtensionDataInit;
use codex_extension_api::PromptSlot;
use codex_features::FEATURES;
use codex_features::Feature;
use codex_features::unstable_features_warning_event;
use codex_hooks::Hooks;
use codex_hooks::HooksConfig;
use codex_login::AuthManager;
use codex_login::CodexAuth;
use codex_login::auth_env_telemetry::collect_auth_env_telemetry;
use codex_login::default_client::originator;
use codex_mcp::McpConnectionManager;
use codex_mcp::McpRuntimeContext;
use codex_mcp::codex_apps_tools_cache_key;
use codex_models_manager::manager::RefreshStrategy;
use codex_models_manager::manager::SharedModelsManager;
use codex_network_proxy::NetworkProxy;
use codex_network_proxy::NetworkProxyAuditMetadata;
use codex_network_proxy::normalize_host;
use codex_otel::current_span_trace_id;
use codex_otel::current_span_w3c_trace_context;
use codex_otel::set_parent_from_w3c_trace_context;
use codex_protocol::SessionId;
use codex_protocol::ThreadId;
use codex_protocol::approvals::ElicitationRequestEvent;
use codex_protocol::approvals::ExecPolicyAmendment;
use codex_protocol::approvals::NetworkPolicyAmendment;
use codex_protocol::approvals::NetworkPolicyRuleAction;
use codex_protocol::config_types::ApprovalsReviewer;
use codex_protocol::config_types::AutoCompactTokenLimitScope;
use codex_protocol::config_types::ModeKind;
use codex_protocol::config_types::SERVICE_TIER_DEFAULT_REQUEST_VALUE;
use codex_protocol::config_types::Settings;
use codex_protocol::config_types::WebSearchMode;
use codex_protocol::dynamic_tools::DynamicToolResponse;
use codex_protocol::dynamic_tools::DynamicToolSpec;
use codex_protocol::items::TurnItem;
use codex_protocol::items::UserMessageItem;
use codex_protocol::mcp::CallToolResult;
use codex_protocol::models::ActivePermissionProfile;
use codex_protocol::models::AdditionalPermissionProfile;
use codex_protocol::models::BaseInstructions;
use codex_protocol::models::PermissionProfile;
use codex_protocol::models::SandboxEnforcement;
use codex_protocol::models::format_allow_prefixes;
use codex_protocol::openai_models::ModelInfo;
use codex_protocol::openai_models::ModelPreset;
use codex_protocol::permissions::FileSystemSandboxPolicy;
use codex_protocol::permissions::NetworkSandboxPolicy;
use codex_protocol::protocol::AdditionalContextEntry;
use codex_protocol::protocol::FileChange;
use codex_protocol::protocol::HasLegacyEvent;
use codex_protocol::protocol::InterAgentCommunication;
use codex_protocol::protocol::ItemCompletedEvent;
use codex_protocol::protocol::ItemStartedEvent;
use codex_protocol::protocol::MultiAgentVersion;
use codex_protocol::protocol::RawResponseItemEvent;
use codex_protocol::protocol::ReviewRequest;
use codex_protocol::protocol::RolloutItem;
use codex_protocol::protocol::SessionSource;
use codex_protocol::protocol::SubAgentSource;
use codex_protocol::protocol::ThreadSource;
use codex_protocol::protocol::TurnAbortReason;
use codex_protocol::protocol::TurnContextItem;
use codex_protocol::protocol::TurnContextNetworkItem;
use codex_protocol::protocol::TurnEnvironmentSelection;
use codex_protocol::protocol::TurnEnvironmentSelections;
use codex_protocol::protocol::W3cTraceContext;
use codex_protocol::request_permissions::PermissionGrantScope;
use codex_protocol::request_permissions::RequestPermissionProfile;
use codex_protocol::request_permissions::RequestPermissionsArgs;
use codex_protocol::request_permissions::RequestPermissionsEvent;
use codex_protocol::request_permissions::RequestPermissionsResponse;
use codex_protocol::request_user_input::RequestUserInputArgs;
use codex_protocol::request_user_input::RequestUserInputResponse;
use codex_rmcp_client::ElicitationResponse;
use codex_rollout::state_db;
use codex_rollout_trace::AgentResultTracePayload;
use codex_rollout_trace::ThreadStartedTraceMetadata;
use codex_rollout_trace::ThreadTraceContext;
use codex_sandboxing::policy_transforms::intersect_permission_profiles;
use codex_shell_command::parse_command::parse_command;
use codex_terminal_detection::user_agent;
use codex_thread_store::CreateThreadParams;
use codex_thread_store::LiveThread;
use codex_thread_store::LiveThreadInitGuard;
use codex_thread_store::LocalThreadStore;
use codex_thread_store::ReadThreadParams;
use codex_thread_store::ResumeThreadParams;
use codex_thread_store::ThreadPersistenceMetadata;
use codex_thread_store::ThreadStore;
use codex_utils_output_truncation::TruncationPolicy;
use futures::future::BoxFuture;
use futures::future::Shared;
use futures::prelude::*;
use rmcp::model::ElicitationCapability;
use rmcp::model::FormElicitationCapability;
use rmcp::model::ListResourceTemplatesResult;
use rmcp::model::ListResourcesResult;
use rmcp::model::PaginatedRequestParams;
use rmcp::model::ReadResourceRequestParams;
use rmcp::model::ReadResourceResult;
use rmcp::model::RequestId;
use rmcp::model::UrlElicitationCapability;
use serde_json::Value;
use tokio::sync::Mutex;
use tokio::sync::RwLock;
use tokio::sync::oneshot;
use tokio::sync::watch;
use tokio::task::JoinHandle;
use tokio_util::sync::CancellationToken;
use toml::Value as TomlValue;
use tracing::Instrument;
use tracing::debug;
use tracing::error;
use tracing::info;
use tracing::info_span;
use tracing::instrument;
use tracing::warn;
use uuid::Uuid;
use crate::client::ModelClient;
use crate::codex_thread::ThreadConfigSnapshot;
use crate::compact::collect_user_messages;
use crate::config::Config;
use crate::config::Constrained;
use crate::config::ConstraintResult;
use crate::config::PermissionProfileSnapshot;
use crate::config::PermissionProfileState;
use crate::config::StartedNetworkProxy;
use crate::config::resolve_web_search_mode_for_turn;
use crate::context_manager::ContextManager;
use crate::thread_rollout_truncation::initial_history_has_prior_user_turns;
use codex_config::CONFIG_TOML_FILE;
use codex_config::ConfigLayerSource;
use codex_config::ConfigLayerStackOrdering;
use codex_config::types::McpServerConfig;
use codex_model_provider_info::ModelProviderInfo;
use codex_protocol::config_types::ShellEnvironmentPolicy;
use codex_protocol::error::CodexErr;
use codex_protocol::error::Result as CodexResult;
#[cfg(test)]
use codex_protocol::exec_output::StreamOutput;
mod config_lock;
mod handlers;
mod inject;
mod input_queue;
mod mcp;
mod multi_agents;
mod review;
mod rollout_reconstruction;
#[allow(clippy::module_inception)]
pub(crate) mod session;
mod token_budget;
pub(crate) mod turn;
pub(crate) mod turn_context;
use self::config_lock::export_config_lock_if_configured;
use self::config_lock::validate_config_lock_if_configured;
#[cfg(test)]
use self::handlers::submission_dispatch_span;
use self::handlers::submission_loop;
pub(crate) use self::input_queue::TurnInput;
pub(crate) use self::input_queue::TurnInputQueue;
use self::review::spawn_review_thread;
use self::session::AppServerClientMetadata;
use self::session::Session;
use self::session::SessionConfiguration;
pub(crate) use self::session::SessionSettingsUpdate;
#[cfg(test)]
use self::turn::AssistantMessageStreamParsers;
#[cfg(test)]
use self::turn::collect_explicit_app_ids_from_skill_items;
use self::turn::realtime_text_for_event;
use self::turn_context::TurnContext;
use self::turn_context::TurnSkillsContext;
#[cfg(test)]
mod rollout_reconstruction_tests;
#[derive(Debug, PartialEq)]
pub enum SteerInputError {
NoActiveTurn(Vec<UserInput>),
ExpectedTurnMismatch { expected: String, actual: String },
ActiveTurnNotSteerable { turn_kind: NonSteerableTurnKind },
EmptyInput,
}
impl SteerInputError {
fn to_error_event(&self) -> ErrorEvent {
match self {
Self::NoActiveTurn(_) => ErrorEvent {
message: "no active turn to steer".to_string(),
codex_error_info: Some(CodexErrorInfo::BadRequest),
},
Self::ExpectedTurnMismatch { expected, actual } => ErrorEvent {
message: format!("expected active turn id `{expected}` but found `{actual}`"),
codex_error_info: Some(CodexErrorInfo::BadRequest),
},
Self::ActiveTurnNotSteerable { turn_kind } => {
let turn_kind_label = match turn_kind {
NonSteerableTurnKind::Review => "review",
NonSteerableTurnKind::Compact => "compact",
};
ErrorEvent {
message: format!("cannot steer a {turn_kind_label} turn"),
codex_error_info: Some(CodexErrorInfo::ActiveTurnNotSteerable {
turn_kind: *turn_kind,
}),
}
}
Self::EmptyInput => ErrorEvent {
message: "input must not be empty".to_string(),
codex_error_info: Some(CodexErrorInfo::BadRequest),
},
}
}
}
/// Notes from the previous real user turn.
///
/// Conceptually this is the same role that `previous_model` used to fill, but
/// it can carry other prior-turn settings that matter when constructing
/// sensible state-change diffs or full-context reinjection, such as model
/// switches, compaction compatibility, or detecting a prior
/// `realtime_active -> false` transition.
#[derive(Clone, Debug, PartialEq, Eq)]
pub(crate) struct PreviousTurnSettings {
pub(crate) model: String,
pub(crate) comp_hash: Option<String>,
pub(crate) realtime_active: Option<bool>,
}
#[cfg(test)]
use crate::SkillLoadOutcome;
#[cfg(test)]
use crate::SkillMetadata;
use crate::SkillsManager;
use crate::agents_md::AgentsMdManager;
use crate::context::UserInstructions;
use crate::exec_policy::ExecPolicyUpdateError;
use crate::guardian::GuardianReviewSessionManager;
use crate::mcp::McpManager;
use crate::network_policy_decision::execpolicy_network_rule_amendment;
use crate::rollout::map_session_init_error;
use crate::session_startup_prewarm::SessionStartupPrewarmHandle;
use crate::shell;
use crate::shell_snapshot::ShellSnapshot;
use crate::state::AutoCompactWindowSnapshot;
use crate::state::PendingRequestPermissions;
use crate::state::SessionServices;
use crate::state::SessionState;
#[cfg(test)]
use crate::stream_events_utils::HandleOutputCtx;
#[cfg(test)]
use crate::stream_events_utils::handle_output_item_done;
use crate::tasks::ReviewTask;
use crate::tools::network_approval::NetworkApprovalService;
use crate::tools::network_approval::build_blocked_request_observer;
use crate::tools::network_approval::build_network_policy_decider;
#[cfg(test)]
use crate::tools::parallel::ToolCallRuntime;
use crate::tools::sandboxing::ApprovalStore;
use crate::turn_timing::TurnTimingState;
use crate::turn_timing::record_turn_ttfm_metric;
use crate::unified_exec::UnifiedExecProcessManager;
use crate::windows_sandbox::WindowsSandboxLevelExt;
use codex_core_plugins::PluginsManager;
use codex_git_utils::get_git_repo_root;
use codex_mcp::compute_auth_statuses;
use codex_mcp::effective_mcp_servers_from_configured;
use codex_mcp::host_owned_codex_apps_enabled;
use codex_otel::SessionTelemetry;
use codex_otel::THREAD_STARTED_METRIC;
use codex_otel::TelemetryAuthMode;
use codex_protocol::config_types::CollaborationMode;
use codex_protocol::config_types::Personality;
use codex_protocol::config_types::ReasoningSummary as ReasoningSummaryConfig;
use codex_protocol::config_types::WindowsSandboxLevel;
use codex_protocol::models::LocalImagePreparation;
use codex_protocol::models::ResponseInputItem;
use codex_protocol::models::ResponseItem;
use codex_protocol::openai_models::ReasoningEffort as ReasoningEffortConfig;
use codex_protocol::protocol::ApplyPatchApprovalRequestEvent;
use codex_protocol::protocol::AskForApproval;
use codex_protocol::protocol::CodexErrorInfo;
use codex_protocol::protocol::CompactedItem;
use codex_protocol::protocol::DeprecationNoticeEvent;
use codex_protocol::protocol::ErrorEvent;
use codex_protocol::protocol::Event;
use codex_protocol::protocol::EventMsg;
use codex_protocol::protocol::ExecApprovalRequestEvent;
use codex_protocol::protocol::InitialHistory;
use codex_protocol::protocol::McpServerRefreshConfig;
use codex_protocol::protocol::ModelRerouteEvent;
use codex_protocol::protocol::ModelRerouteReason;
use codex_protocol::protocol::ModelVerification;
use codex_protocol::protocol::ModelVerificationEvent;
use codex_protocol::protocol::NetworkApprovalContext;
use codex_protocol::protocol::NonSteerableTurnKind;
use codex_protocol::protocol::Op;
use codex_protocol::protocol::RateLimitSnapshot;
use codex_protocol::protocol::RequestUserInputEvent;
use codex_protocol::protocol::ReviewDecision;
use codex_protocol::protocol::SandboxPolicy;
use codex_protocol::protocol::SessionConfiguredEvent;
use codex_protocol::protocol::SessionNetworkProxyRuntime;
use codex_protocol::protocol::StreamErrorEvent;
use codex_protocol::protocol::Submission;
use codex_protocol::protocol::ThreadMemoryMode;
use codex_protocol::protocol::TokenCountEvent;
use codex_protocol::protocol::TokenUsage;
use codex_protocol::protocol::TokenUsageInfo;
use codex_protocol::protocol::TurnModerationMetadataEvent;
use codex_protocol::protocol::WarningEvent;
use codex_protocol::user_input::UserInput;
use codex_tools::ToolEnvironmentMode;
use codex_tools::UnifiedExecShellMode;
use codex_utils_absolute_path::AbsolutePathBuf;
#[cfg(test)]
use codex_utils_stream_parser::ProposedPlanSegment;
/// The high-level interface to the Codex system.
/// It operates as a queue pair where you send submissions and receive events.
pub struct Codex {
pub(crate) tx_sub: Sender<Submission>,
pub(crate) rx_event: Receiver<Event>,
// Last known status of the agent.
pub(crate) agent_status: watch::Receiver<AgentStatus>,
pub(crate) session: Arc<Session>,
// Shared future for the background submission loop completion so multiple
// callers can wait for shutdown.
pub(crate) session_loop_termination: SessionLoopTermination,
}
pub(crate) type SessionLoopTermination = Shared<BoxFuture<'static, ()>>;
/// Wrapper returned by [`Codex::spawn`] containing the spawned [`Codex`] and
/// the unique session id.
pub struct CodexSpawnOk {
pub codex: Codex,
pub thread_id: ThreadId,
}
pub(crate) struct CodexSpawnArgs {
pub(crate) config: Config,
pub(crate) installation_id: String,
pub(crate) auth_manager: Arc<AuthManager>,
pub(crate) models_manager: SharedModelsManager,
pub(crate) environment_manager: Arc<EnvironmentManager>,
pub(crate) skills_manager: Arc<SkillsManager>,
pub(crate) plugins_manager: Arc<PluginsManager>,
pub(crate) mcp_manager: Arc<McpManager>,
pub(crate) extensions: Arc<codex_extension_api::ExtensionRegistry<crate::config::Config>>,
pub(crate) conversation_history: InitialHistory,
pub(crate) session_source: SessionSource,
pub(crate) forked_from_thread_id: Option<ThreadId>,
pub(crate) parent_thread_id: Option<ThreadId>,
pub(crate) thread_source: Option<ThreadSource>,
pub(crate) agent_control: AgentControl,
pub(crate) dynamic_tools: Vec<DynamicToolSpec>,
pub(crate) metrics_service_name: Option<String>,
pub(crate) inherited_shell_snapshot: Option<Arc<ShellSnapshot>>,
pub(crate) inherited_exec_policy: Option<Arc<ExecPolicyManager>>,
/// Parent rollout trace used only to derive fresh spawned child traces.
///
/// Root sessions and non-thread-spawn subagents pass a disabled context;
/// `Session::new` creates the root trace itself when rollout tracing is enabled.
pub(crate) parent_rollout_thread_trace: ThreadTraceContext,
pub(crate) user_shell_override: Option<shell::Shell>,
pub(crate) parent_trace: Option<W3cTraceContext>,
pub(crate) environment_selections: ResolvedTurnEnvironments,
pub(crate) thread_extension_init: ExtensionDataInit,
pub(crate) analytics_events_client: Option<AnalyticsEventsClient>,
pub(crate) thread_store: Arc<dyn ThreadStore>,
pub(crate) attestation_provider: Option<Arc<dyn AttestationProvider>>,
pub(crate) inherited_multi_agent_version: Option<MultiAgentVersion>,
}
pub(crate) fn resolve_multi_agent_version(
conversation_history: &InitialHistory,
inherited_multi_agent_version: Option<MultiAgentVersion>,
) -> Option<MultiAgentVersion> {
if inherited_multi_agent_version == Some(MultiAgentVersion::Disabled) {
return Some(MultiAgentVersion::Disabled);
}
conversation_history
.get_multi_agent_version()
.or(inherited_multi_agent_version)
.or(match conversation_history {
InitialHistory::New | InitialHistory::Cleared => None,
// Threads created before runtime metadata existed keep the legacy V1 tool surface.
InitialHistory::Resumed(_) | InitialHistory::Forked(_) => Some(MultiAgentVersion::V1),
})
}
pub(crate) const INITIAL_SUBMIT_ID: &str = "";
pub(crate) const SUBMISSION_CHANNEL_CAPACITY: usize = 512;
const CYBER_VERIFY_URL: &str = "https://chatgpt.com/cyber";
const CYBER_SAFETY_URL: &str = "https://developers.openai.com/codex/concepts/cyber-safety";
impl Codex {
/// Spawn a new [`Codex`] and initialize the session.
pub(crate) async fn spawn(args: CodexSpawnArgs) -> CodexResult<CodexSpawnOk> {
let parent_trace = match args.parent_trace {
Some(trace) => {
if codex_otel::context_from_w3c_trace_context(&trace).is_some() {
Some(trace)
} else {
warn!("ignoring invalid thread spawn trace carrier");
None
}
}
None => None,
};
let thread_spawn_span = info_span!("thread_spawn", otel.name = "thread_spawn");
if let Some(trace) = parent_trace.as_ref() {
let _ = set_parent_from_w3c_trace_context(&thread_spawn_span, trace);
}
Self::spawn_internal(CodexSpawnArgs {
parent_trace,
..args
})
.instrument(thread_spawn_span)
.await
}
async fn spawn_internal(args: CodexSpawnArgs) -> CodexResult<CodexSpawnOk> {
let CodexSpawnArgs {
mut config,
installation_id,
auth_manager,
models_manager,
environment_manager,
skills_manager,
plugins_manager,
mcp_manager,
extensions,
conversation_history,
session_source,
forked_from_thread_id,
parent_thread_id,
thread_source,
agent_control,
dynamic_tools,
metrics_service_name,
inherited_shell_snapshot,
user_shell_override,
inherited_exec_policy,
parent_rollout_thread_trace,
parent_trace: _,
environment_selections,
thread_extension_init,
analytics_events_client,
thread_store,
attestation_provider,
inherited_multi_agent_version,
} = args;
let (tx_sub, rx_sub) = async_channel::bounded(SUBMISSION_CHANNEL_CAPACITY);
let (tx_event, rx_event) = async_channel::unbounded();
let primary_environment = environment_selections.primary_environment();
let mut user_instruction_warnings = Vec::new();
let user_instructions = if let Some(primary_environment) = primary_environment {
AgentsMdManager::new(&config)
.user_instructions(primary_environment.as_ref(), &mut user_instruction_warnings)
.await
} else {
None
};
config.startup_warnings.extend(user_instruction_warnings);
let exec_policy = if crate::guardian::is_guardian_reviewer_source(&session_source) {
// Guardian review should rely on the built-in shell safety checks,
// not on caller-provided exec-policy rules that could shape the
// reviewer or silently auto-approve commands.
Arc::new(ExecPolicyManager::default())
} else if let Some(exec_policy) = &inherited_exec_policy {
Arc::clone(exec_policy)
} else {
Arc::new(
ExecPolicyManager::load(&config.config_layer_stack)
.await
.map_err(|err| CodexErr::Fatal(format!("failed to load rules: {err}")))?,
)
};
let config = Arc::new(config);
let refresh_strategy = if session_source.is_non_root_agent() {
codex_models_manager::manager::RefreshStrategy::Offline
} else {
codex_models_manager::manager::RefreshStrategy::OnlineIfUncached
};
if config.model.is_none()
|| !matches!(
refresh_strategy,
codex_models_manager::manager::RefreshStrategy::Offline
)
{
let _ = models_manager.list_models(refresh_strategy).await;
}
let model = models_manager
.get_default_model(&config.model, refresh_strategy)
.await;
// Resolve base instructions for the session. Priority order:
// 1. config.base_instructions override
// 2. conversation history => session_meta.base_instructions
// 3. base_instructions for current model
let model_info = models_manager
.get_model_info(model.as_str(), &config.to_models_manager_config())
.await;
let multi_agent_version =
resolve_multi_agent_version(&conversation_history, inherited_multi_agent_version);
config
.validate_multi_agent_v2_config()
.map_err(|err| CodexErr::InvalidRequest(err.to_string()))?;
let base_instructions = config
.base_instructions
.clone()
.or_else(|| conversation_history.get_base_instructions().map(|s| s.text))
.unwrap_or_else(|| model_info.get_model_instructions(config.personality));
// Dynamic tools are defined at thread start and persisted in rollout session metadata.
let dynamic_tools = if dynamic_tools.is_empty() {
conversation_history.get_dynamic_tools().unwrap_or_default()
} else {
dynamic_tools
};
// TODO (aibrahim): Consolidate config.model and config.model_reasoning_effort into config.collaboration_mode
// to avoid extracting these fields separately and constructing CollaborationMode here.
let collaboration_mode = CollaborationMode {
mode: ModeKind::Default,
settings: Settings {
model: model.clone(),
reasoning_effort: config.model_reasoning_effort.clone(),
developer_instructions: None,
},
};
let service_tier = get_service_tier(
config.service_tier.clone(),
config.features.enabled(Feature::FastMode),
&model_info,
);
let session_configuration = SessionConfiguration {
provider: config.model_provider.clone(),
collaboration_mode,
model_reasoning_summary: config.model_reasoning_summary,
service_tier,
developer_instructions: config.developer_instructions.clone(),
user_instructions,
personality: config.personality,
base_instructions,
compact_prompt: config.compact_prompt.clone(),
approval_policy: config.permissions.approval_policy.clone(),
approvals_reviewer: config.approvals_reviewer,
permission_profile_state: session_permission_profile_state_from_config(&config)?,
windows_sandbox_level: WindowsSandboxLevel::from_config(&config),
environments: TurnEnvironmentSelections::new(
config.cwd.clone(),
environment_selections.to_selections(),
),
workspace_roots: config.workspace_roots.clone(),
codex_home: config.codex_home.clone(),
thread_name: None,
original_config_do_not_use: Arc::clone(&config),
metrics_service_name,
app_server_client_name: None,
app_server_client_version: None,
session_source,
forked_from_thread_id,
parent_thread_id,
thread_source,
dynamic_tools,
inherited_shell_snapshot,
user_shell_override,
};
// Generate a unique ID for the lifetime of this Codex session.
let session_source_clone = session_configuration.session_source.clone();
let (agent_status_tx, agent_status_rx) = watch::channel(AgentStatus::PendingInit);
let session = Box::pin(Session::new(
session_configuration,
config.clone(),
installation_id,
auth_manager.clone(),
models_manager.clone(),
exec_policy,
tx_event.clone(),
agent_status_tx.clone(),
conversation_history,
session_source_clone,
skills_manager,
plugins_manager,
mcp_manager.clone(),
extensions,
thread_extension_init,
agent_control,
environment_manager,
analytics_events_client,
thread_store,
parent_rollout_thread_trace,
attestation_provider,
multi_agent_version,
))
.await
.map_err(|e| {
error!("Failed to create session: {e:#}");
map_session_init_error(&e, &config.codex_home)
})?;
let thread_id = session.thread_id;
// This task will run until Op::Shutdown is received.
let session_for_loop = Arc::clone(&session);
let session_loop_handle = tokio::spawn(async move {
submission_loop(session_for_loop, config, rx_sub)
.instrument(info_span!("session_loop", thread_id = %thread_id))
.await;
});
let codex = Codex {
tx_sub,
rx_event,
agent_status: agent_status_rx,
session,
session_loop_termination: session_loop_termination_from_handle(session_loop_handle),
};
Ok(CodexSpawnOk { codex, thread_id })
}
/// Submit the `op` wrapped in a `Submission` with a unique ID.
pub async fn submit(&self, op: Op) -> CodexResult<String> {
self.submit_with_trace(op, /*trace*/ None).await
}
pub async fn submit_with_trace(
&self,
op: Op,
trace: Option<W3cTraceContext>,
) -> CodexResult<String> {
let id = Uuid::now_v7().to_string();
let sub = Submission {
id: id.clone(),
op,
client_user_message_id: None,
trace,
};
self.submit_with_id(sub).await?;
Ok(id)
}
pub async fn submit_user_input_with_client_user_message_id(
&self,
op: Op,
trace: Option<W3cTraceContext>,
client_user_message_id: Option<String>,
) -> CodexResult<String> {
debug_assert!(matches!(op, Op::UserInput { .. }));
let id = Uuid::now_v7().to_string();
let sub = Submission {
id: id.clone(),
op,
client_user_message_id,
trace,
};
self.submit_with_id(sub).await?;
Ok(id)
}
/// Use sparingly: prefer `submit()` so Codex is responsible for generating
/// unique IDs for each submission.
pub async fn submit_with_id(&self, mut sub: Submission) -> CodexResult<()> {
if sub.trace.is_none() {
sub.trace = current_span_w3c_trace_context();
}
self.tx_sub
.send(sub)
.await
.map_err(|_| CodexErr::InternalAgentDied)?;
Ok(())
}
/// Persist a thread-level memory mode update for the active session.
///
/// This is a local-only operation that updates rollout metadata directly
/// and does not involve the model.
pub async fn set_thread_memory_mode(
&self,
mode: codex_protocol::protocol::ThreadMemoryMode,
) -> anyhow::Result<()> {
handlers::persist_thread_memory_mode_update(&self.session, mode).await
}
pub async fn shutdown_and_wait(&self) -> CodexResult<()> {
let session_loop_termination = self.session_loop_termination.clone();
match self.submit(Op::Shutdown).await {
Ok(_) => {}
Err(CodexErr::InternalAgentDied) => {}
Err(err) => return Err(err),
}
session_loop_termination.await;
Ok(())
}
pub async fn next_event(&self) -> CodexResult<Event> {
let event = self
.rx_event
.recv()
.await
.map_err(|_| CodexErr::InternalAgentDied)?;
Ok(event)
}
pub async fn steer_input(
&self,
input: Vec<UserInput>,
additional_context: BTreeMap<String, AdditionalContextEntry>,
expected_turn_id: Option<&str>,
client_user_message_id: Option<String>,
responsesapi_client_metadata: Option<HashMap<String, String>>,
) -> Result<String, SteerInputError> {
self.session
.steer_input(
input,
additional_context,
expected_turn_id,
client_user_message_id,
responsesapi_client_metadata,
)
.await
}
pub(crate) async fn set_app_server_client_info(
&self,
app_server_client_name: Option<String>,
app_server_client_version: Option<String>,
mcp_elicitations_auto_deny: bool,
) -> ConstraintResult<()> {
self.session
.update_settings(SessionSettingsUpdate {
app_server_client_name,
app_server_client_version,
..Default::default()
})
.await?;
let mcp_connection_manager = self.session.services.mcp_connection_manager.load_full();
mcp_connection_manager.set_elicitations_auto_deny(mcp_elicitations_auto_deny);
Ok(())
}
pub(crate) async fn agent_status(&self) -> AgentStatus {
self.agent_status.borrow().clone()
}
pub(crate) async fn thread_config_snapshot(&self) -> ThreadConfigSnapshot {
let state = self.session.state.lock().await;
state.session_configuration.thread_config_snapshot()
}
pub(crate) async fn instruction_sources(&self) -> Vec<AbsolutePathBuf> {
let state = self.session.state.lock().await;
state
.session_configuration
.user_instructions
.as_ref()
.map_or_else(Vec::new, |instructions| {
instructions.sources().cloned().collect()
})
}
pub(crate) async fn thread_environment_selections(&self) -> Vec<TurnEnvironmentSelection> {
let state = self.session.state.lock().await;
state
.session_configuration
.environment_selections()
.to_vec()
}
pub(crate) fn state_db(&self) -> Option<state_db::StateDbHandle> {
self.session.state_db()
}
pub(crate) fn enabled(&self, feature: Feature) -> bool {
self.session.enabled(feature)
}
}
fn get_service_tier(
configured_service_tier: Option<String>,
fast_mode_enabled: bool,
model_info: &ModelInfo,
) -> Option<String> {
if !fast_mode_enabled {
return None;
}
configured_service_tier.filter(|service_tier| {
service_tier == SERVICE_TIER_DEFAULT_REQUEST_VALUE
|| model_info.supports_service_tier(service_tier)
})
}
fn session_permission_profile_state_from_config(
config: &Config,
) -> CodexResult<PermissionProfileState> {
Ok(config.permissions.permission_profile_state().clone())
}
#[cfg(test)]
pub(crate) fn completed_session_loop_termination() -> SessionLoopTermination {
futures::future::ready(()).boxed().shared()
}
pub(crate) fn session_loop_termination_from_handle(
handle: JoinHandle<()>,
) -> SessionLoopTermination {
async move {
let _ = handle.await;
}
.boxed()
.shared()
}
async fn thread_title_from_thread_store(
live_thread: Option<&LiveThread>,
thread_store: &Arc<dyn ThreadStore>,
conversation_id: ThreadId,
) -> Option<String> {
let thread = match live_thread {
Some(live_thread) => {
live_thread
.read_thread(
/*include_archived*/ true, /*include_history*/ false,
)
.await
}
None => {
thread_store
.read_thread(ReadThreadParams {
thread_id: conversation_id,
include_archived: true,
include_history: false,
})
.await
}
}
.ok()?;
let title = thread.name.as_deref()?.trim();
(!title.is_empty() && thread.preview.trim() != title).then(|| title.to_string())
}
impl Session {
pub(crate) async fn app_server_client_metadata(&self) -> AppServerClientMetadata {
let state = self.state.lock().await;
AppServerClientMetadata {
client_name: state.session_configuration.app_server_client_name.clone(),
client_version: state
.session_configuration
.app_server_client_version
.clone(),
}
}
fn managed_network_proxy_active_for_permission_profile(
permission_profile: &PermissionProfile,
) -> bool {
!matches!(permission_profile, PermissionProfile::Disabled)
}
/// Builds the `x-codex-beta-features` header value for this session.
///
/// `ModelClient` is session-scoped and intentionally does not depend on the full `Config`, so
/// we precompute the comma-separated list of enabled experimental feature keys at session
/// creation time and thread it into the client.
fn build_model_client_beta_features_header(config: &Config) -> Option<String> {
let beta_features_header = FEATURES
.iter()
.filter_map(|spec| {
let advertise_in_model_client_header =
spec.stage.experimental_menu_description().is_some()
|| spec.id == Feature::RemoteCompactionV2;
if advertise_in_model_client_header && config.features.enabled(spec.id) {
Some(spec.key)
} else {
None
}
})
.collect::<Vec<_>>()
.join(",");
if beta_features_header.is_empty() {
None
} else {
Some(beta_features_header)
}
}
async fn start_managed_network_proxy(
spec: &crate::config::NetworkProxySpec,
exec_policy: &codex_execpolicy::Policy,
permission_profile: &PermissionProfile,
network_policy_decider: Option<Arc<dyn codex_network_proxy::NetworkPolicyDecider>>,
blocked_request_observer: Option<Arc<dyn codex_network_proxy::BlockedRequestObserver>>,
managed_network_requirements_enabled: bool,
audit_metadata: NetworkProxyAuditMetadata,
) -> anyhow::Result<(StartedNetworkProxy, SessionNetworkProxyRuntime)> {
let spec = spec
.with_exec_policy_network_rules(exec_policy)
.map_err(|err| {
tracing::warn!(
"failed to apply execpolicy network rules to managed proxy; continuing with configured network policy: {err}"
);
err
})
.unwrap_or_else(|_| spec.clone());
let network_proxy = spec
.start_proxy(
permission_profile,
network_policy_decider,
blocked_request_observer,
managed_network_requirements_enabled,
audit_metadata,
)
.await
.map_err(|err| anyhow::anyhow!("failed to start managed network proxy: {err}"))?;
let session_network_proxy = {
let proxy = network_proxy.proxy();
SessionNetworkProxyRuntime {
http_addr: proxy.http_addr().to_string(),
socks_addr: proxy.socks_addr().to_string(),
}
};
Ok((network_proxy, session_network_proxy))
}
async fn refresh_managed_network_proxy_for_current_permission_profile(&self) {
let Ok(_refresh_guard) = self.managed_network_proxy_refresh_lock.acquire().await else {
error!("managed network proxy refresh semaphore closed");
return;
};
let session_configuration = {
let state = self.state.lock().await;
state.session_configuration.clone()
};
let Some(spec) = session_configuration
.original_config_do_not_use
.permissions
.network
.as_ref()
.cloned()
else {
self.services.network_proxy.store(None);
return;
};
let spec = match spec
.recompute_for_permission_profile(&session_configuration.permission_profile())
{
Ok(spec) => spec,
Err(err) => {
warn!("failed to rebuild managed network proxy policy for sandbox change: {err}");
return;
}
};
let current_exec_policy = self.services.exec_policy.current();
let spec = match spec.with_exec_policy_network_rules(current_exec_policy.as_ref()) {
Ok(spec) => spec,
Err(err) => {
warn!(
"failed to apply execpolicy network rules while refreshing managed network proxy: {err}"
);
spec
}
};
if let Some(started_proxy) = self.services.network_proxy.load_full() {
if let Err(err) = spec.apply_to_started_proxy(started_proxy.as_ref()).await {
warn!("failed to refresh managed network proxy for sandbox change: {err}");
}
return;
}
match Self::start_managed_network_proxy(
&spec,
current_exec_policy.as_ref(),
&session_configuration.permission_profile(),
/*network_policy_decider*/ None,
self.services
.managed_network_requirements_configured
.then(|| {
build_blocked_request_observer(Arc::clone(&self.services.network_approval))
}),
self.services.managed_network_requirements_configured,
self.services.network_proxy_audit_metadata.clone(),
)
.await
{
Ok((started_proxy, _session_network_proxy)) => {
self.services
.network_proxy
.store(Some(Arc::new(started_proxy)));
}
Err(err) => {
warn!("failed to start managed network proxy for sandbox change: {err}");
}
}
}
#[cfg(test)]
pub(crate) async fn codex_home(&self) -> AbsolutePathBuf {
let state = self.state.lock().await;
state.session_configuration.codex_home().clone()
}
pub(crate) fn subscribe_out_of_band_elicitation_pause_state(&self) -> watch::Receiver<bool> {
self.out_of_band_elicitation_paused.subscribe()
}
pub(crate) fn set_out_of_band_elicitation_pause_state(&self, paused: bool) {
self.out_of_band_elicitation_paused.send_replace(paused);
}
pub(crate) fn get_tx_event(&self) -> Sender<Event> {
self.tx_event.clone()
}
pub(crate) fn state_db(&self) -> Option<state_db::StateDbHandle> {
self.services.state_db.clone()
}
pub(crate) fn live_thread_for_persistence(
&self,
operation: &str,
) -> anyhow::Result<&LiveThread> {
self.live_thread()
.ok_or_else(|| anyhow::anyhow!("Session persistence is disabled; cannot {operation}."))
}
pub(crate) fn live_thread(&self) -> Option<&LiveThread> {
self.services.live_thread.as_ref()
}
/// Flush rollout writes and return the final durability-barrier result.
pub(crate) async fn flush_rollout(&self) -> std::io::Result<()> {
if let Some(live_thread) = self.live_thread() {
live_thread.flush().await.map_err(std::io::Error::other)
} else {
Ok(())
}
}
pub(crate) async fn try_ensure_rollout_materialized(&self) -> std::io::Result<()> {
if let Some(live_thread) = self.live_thread() {
live_thread.persist().await.map_err(std::io::Error::other)?;
}
Ok(())
}
pub(crate) async fn ensure_rollout_materialized(&self) {
if let Err(e) = self.try_ensure_rollout_materialized().await {
warn!("failed to materialize thread persistence: {e}");
}
}
fn next_internal_sub_id(&self) -> String {
let id = self
.next_internal_sub_id
.fetch_add(1, std::sync::atomic::Ordering::SeqCst);
format!("auto-compact-{id}")
}
pub(crate) async fn route_realtime_text_input(self: &Arc<Self>, text: String) {
handlers::user_input_or_turn_inner(
self,
self.next_internal_sub_id(),
Op::UserInput {
items: vec![UserInput::Text {
text,
text_elements: Vec::new(),
}],
final_output_json_schema: None,
responsesapi_client_metadata: None,
additional_context: Default::default(),
thread_settings: Default::default(),
},
/*client_user_message_id*/ None,
)
.await;
}
pub(crate) async fn get_total_token_usage(&self) -> i64 {
let state = self.state.lock().await;
state.get_total_token_usage(state.server_reasoning_included())
}
pub(crate) async fn auto_compact_window_snapshot(&self) -> AutoCompactWindowSnapshot {
let state = self.state.lock().await;
state.auto_compact_window_snapshot()
}
pub(crate) async fn estimated_tokens_after_last_model_generated_item(&self) -> i64 {
let state = self.state.lock().await;
state
.history
.estimated_tokens_after_last_model_generated_item()
}
pub(crate) async fn total_token_usage(&self) -> Option<TokenUsage> {
let state = self.state.lock().await;
state.token_info().map(|info| info.total_token_usage)
}
/// Returns the complete token usage snapshot currently cached for this session.
///
/// Resume and fork reconstruction seed this state from the last persisted rollout
/// `TokenCount` event. Callers that need to replay restored usage to a client
/// should use this accessor instead of `total_token_usage`, because the app-server
/// notification includes both total and last-turn usage.
pub(crate) async fn token_usage_info(&self) -> Option<TokenUsageInfo> {
let state = self.state.lock().await;
state.token_info()
}
pub(crate) async fn get_estimated_token_count(
&self,
turn_context: &TurnContext,
) -> Option<i64> {
let state = self.state.lock().await;
state.history.estimate_token_count(turn_context)
}
pub(crate) async fn get_base_instructions(&self) -> BaseInstructions {
let state = self.state.lock().await;
BaseInstructions {
text: state.session_configuration.base_instructions.clone(),
}
}
// Merges connector IDs into the session-level explicit connector selection.
pub(crate) async fn merge_connector_selection(
&self,
connector_ids: HashSet<String>,
) -> HashSet<String> {
let mut state = self.state.lock().await;
state.merge_connector_selection(connector_ids)
}
// Returns the connector IDs currently selected for this session.
pub(crate) async fn get_connector_selection(&self) -> HashSet<String> {
let state = self.state.lock().await;
state.get_connector_selection()
}
// Clears connector IDs that were accumulated for explicit selection.
pub(crate) async fn clear_connector_selection(&self) {
let mut state = self.state.lock().await;
state.clear_connector_selection();
}
async fn record_initial_history(&self, conversation_history: InitialHistory) {
let is_subagent = {
let state = self.state.lock().await;
state
.session_configuration
.session_source
.is_non_root_agent()
};
let has_prior_user_turns = initial_history_has_prior_user_turns(&conversation_history);
{
let mut state = self.state.lock().await;
state.set_next_turn_is_first(!has_prior_user_turns);
}
match conversation_history {
InitialHistory::New | InitialHistory::Cleared => {
// Defer initial context insertion until the first real turn starts so
// turn/start overrides can be merged before we write model-visible context.
self.set_previous_turn_settings(/*previous_turn_settings*/ None)
.await;
}
InitialHistory::Resumed(resumed_history) => {
let turn_context = self.new_default_turn().await;
let rollout_items = resumed_history.history;
let previous_turn_settings = self
.apply_rollout_reconstruction(&turn_context, &rollout_items)
.await;
// If resuming, warn when the last recorded model differs from the current one.
let curr: &str = turn_context.model_info.slug.as_str();
if let Some(prev) = previous_turn_settings
.as_ref()
.map(|settings| settings.model.as_str())
.filter(|model| *model != curr)
{
warn!("resuming session with different model: previous={prev}, current={curr}");
self.send_event(
&turn_context,
EventMsg::Warning(WarningEvent {
message: format!(
"This session was recorded with model `{prev}` but is resuming with `{curr}`. \
Consider switching back to `{prev}` as it may affect Codex performance."
),
}),
)
.await;
}
// Seed usage info from the recorded rollout so UIs can show token counts
// immediately on resume/fork.
if let Some(info) = Self::last_token_info_from_rollout(&rollout_items) {
let mut state = self.state.lock().await;
state.set_token_info(Some(info));
}
// Defer seeding the session's initial context until the first turn starts so
// turn/start overrides can be merged before we write to the rollout.
if !is_subagent {
let _ = self.flush_rollout().await;
}
}
InitialHistory::Forked(rollout_items) => {
let turn_context = self.new_default_turn().await;
self.apply_rollout_reconstruction(&turn_context, &rollout_items)
.await;
// Seed usage info from the recorded rollout so UIs can show token counts
// immediately on resume/fork.
if let Some(info) = Self::last_token_info_from_rollout(&rollout_items) {
let mut state = self.state.lock().await;
state.set_token_info(Some(info));
}
// If persisting, persist all rollout items as-is (the store filters).
if !rollout_items.is_empty() {
self.persist_rollout_items(&rollout_items).await;
}
// Forked threads should remain file-backed immediately after startup.
self.ensure_rollout_materialized().await;
// Flush after seeding history and any persisted rollout copy.
if !is_subagent {
let _ = self.flush_rollout().await;
}
}
}
}
async fn apply_rollout_reconstruction(
&self,
turn_context: &TurnContext,
rollout_items: &[RolloutItem],
) -> Option<PreviousTurnSettings> {
let rollout_reconstruction::RolloutReconstruction {
mut history,
previous_turn_settings,
reference_context_item,
window_id,
} = self
.reconstruct_history_from_rollout(turn_context, rollout_items)
.await;
if turn_context.features.enabled(Feature::ResizeAllImages) {
// Keep the recorded rollout unchanged. Prepare its reconstructed history before
// installing it, so legacy images are processed once for this resume or fork and
// will be processed again if the rollout is reconstructed in a future session.
// This meets image resizing requirements without modifying persisted rollouts.
prepare_response_items(&mut history);
}
{
let mut state = self.state.lock().await;
state.replace_history(history, reference_context_item);
state.set_auto_compact_window_id(window_id);
state.set_previous_turn_settings(previous_turn_settings.clone());
}
let prefix_tokens = if matches!(
turn_context.config.model_auto_compact_token_limit_scope,
AutoCompactTokenLimitScope::BodyAfterPrefix
) {
let history = self.clone_history().await;
let base_instructions = self.get_base_instructions().await;
history.estimate_token_count_with_base_instructions(&base_instructions)
} else {
None
};
if let Some(prefix_tokens) = prefix_tokens {
self.set_auto_compact_window_estimated_prefill_for_scope(turn_context, prefix_tokens)
.await;
}
previous_turn_settings
}
async fn set_auto_compact_window_estimated_prefill_for_scope(
&self,
turn_context: &TurnContext,
tokens: i64,
) {
if !matches!(
turn_context.config.model_auto_compact_token_limit_scope,
AutoCompactTokenLimitScope::BodyAfterPrefix
) {
return;
}
let mut state = self.state.lock().await;
state.set_auto_compact_window_estimated_prefill(tokens);
}
fn last_token_info_from_rollout(rollout_items: &[RolloutItem]) -> Option<TokenUsageInfo> {
rollout_items.iter().rev().find_map(|item| match item {
RolloutItem::EventMsg(EventMsg::TokenCount(ev)) => ev.info.clone(),
_ => None,
})
}
async fn previous_turn_settings(&self) -> Option<PreviousTurnSettings> {
let state = self.state.lock().await;
state.previous_turn_settings()
}
pub(crate) async fn set_previous_turn_settings(
&self,
previous_turn_settings: Option<PreviousTurnSettings>,
) {
let mut state = self.state.lock().await;
state.set_previous_turn_settings(previous_turn_settings);
}
fn maybe_refresh_shell_snapshot_for_cwd(
&self,
previous_cwd: &AbsolutePathBuf,
next_cwd: &AbsolutePathBuf,
codex_home: &AbsolutePathBuf,
session_source: &SessionSource,
) {
if previous_cwd == next_cwd {
return;
}
if !self.features.enabled(Feature::ShellSnapshot) {
return;
}
if matches!(
session_source,
SessionSource::SubAgent(SubAgentSource::ThreadSpawn { .. })
) {
return;
}
ShellSnapshot::refresh_snapshot(
codex_home.clone(),
self.thread_id,
next_cwd.clone(),
self.services.user_shell.as_ref().clone(),
self.services.shell_snapshot_tx.clone(),
self.services.session_telemetry.clone(),
self.services.state_db.clone(),
);
}
pub(crate) async fn update_settings(
&self,
updates: SessionSettingsUpdate,
) -> ConstraintResult<()> {
let notify_config_contributors = !self.services.extensions.config_contributors().is_empty();
let (
previous_config,
new_config,
previous_cwd,
permission_profile_changed,
next_cwd,
codex_home,
session_source,
) = {
let mut state = self.state.lock().await;
let updated = match state.session_configuration.apply(&updates) {
Ok(updated) => updated,
Err(err) => {
warn!("rejected session settings update: {err}");
return Err(err);
}
};
let previous_config = notify_config_contributors
.then(|| Self::build_effective_session_config(&state.session_configuration));
let new_config =
notify_config_contributors.then(|| Self::build_effective_session_config(&updated));
let previous_cwd = state.session_configuration.cwd().clone();
let previous_permission_profile = state.session_configuration.permission_profile();
let updated_permission_profile = updated.permission_profile();
let permission_profile_changed =
previous_permission_profile != updated_permission_profile;
let next_cwd = updated.cwd().clone();
let codex_home = updated.codex_home.clone();
let session_source = updated.session_source.clone();
state.session_configuration = updated;
(
previous_config,
new_config,
previous_cwd,
permission_profile_changed,
next_cwd,
codex_home,
session_source,
)
};
self.emit_config_changed_contributors(previous_config.as_ref(), new_config.as_ref());
self.maybe_refresh_shell_snapshot_for_cwd(
&previous_cwd,
&next_cwd,
&codex_home,
&session_source,
);
if permission_profile_changed {
self.refresh_managed_network_proxy_for_current_permission_profile()
.await;
}
Ok(())
}
pub(crate) async fn preview_settings(
&self,
updates: &SessionSettingsUpdate,
) -> ConstraintResult<ThreadConfigSnapshot> {
let state = self.state.lock().await;
state
.session_configuration
.apply(updates)
.map(|configuration| configuration.thread_config_snapshot())
}
pub(crate) async fn set_session_startup_prewarm(
&self,
startup_prewarm: SessionStartupPrewarmHandle,
) {
let mut state = self.state.lock().await;
state.set_session_startup_prewarm(startup_prewarm);
}
pub(crate) async fn take_session_startup_prewarm(&self) -> Option<SessionStartupPrewarmHandle> {
let mut state = self.state.lock().await;
state.take_session_startup_prewarm()
}
pub(crate) async fn get_config(&self) -> std::sync::Arc<Config> {
let state = self.state.lock().await;
state
.session_configuration
.original_config_do_not_use
.clone()
}
pub(crate) async fn provider(&self) -> ModelProviderInfo {
let state = self.state.lock().await;
state.session_configuration.provider.clone()
}
pub(crate) async fn refresh_runtime_config(&self, next_config: Config) {
// Refresh only the user layer from the incoming snapshot. Preserve thread-local
// layers such as request/session overrides that were present when this session
// was created.
let notify_config_contributors = !self.services.extensions.config_contributors().is_empty();
let (previous_config, new_config, config) = {
let mut state = self.state.lock().await;
let previous_config = notify_config_contributors
.then(|| Self::build_effective_session_config(&state.session_configuration));
let mut config = (*state.session_configuration.original_config_do_not_use).clone();
config.config_layer_stack = config
.config_layer_stack
.with_user_layer_from(&next_config.config_layer_stack);
config.tool_suggest =
resolve_tool_suggest_config_from_layer_stack(&config.config_layer_stack);
let config = Arc::new(config);
state.session_configuration.original_config_do_not_use = Arc::clone(&config);
let new_config = notify_config_contributors
.then(|| Self::build_effective_session_config(&state.session_configuration));
(previous_config, new_config, config)
};
self.emit_config_changed_contributors(previous_config.as_ref(), new_config.as_ref());
self.services.skills_manager.clear_cache();
self.services.plugins_manager.clear_cache();
let hooks = build_hooks_for_config(
config.as_ref(),
self.services.plugins_manager.as_ref(),
self.services.user_shell.as_ref(),
)
.await;
let state = self.state.lock().await;
// A newer refresh may have updated the config while this hook build was in flight.
// Only publish hooks derived from the current config snapshot.
if Arc::ptr_eq(
&state.session_configuration.original_config_do_not_use,
&config,
) {
self.services.hooks.store(Arc::new(hooks));
}
}
fn emit_config_changed_contributors(
&self,
previous_config: Option<&Config>,
new_config: Option<&Config>,
) {
let (Some(previous_config), Some(new_config)) = (previous_config, new_config) else {
return;
};
if previous_config == new_config {
return;
}
for contributor in self.services.extensions.config_contributors() {
contributor.on_config_changed(
&self.services.session_extension_data,
&self.services.thread_extension_data,
previous_config,
new_config,
);
}
}
pub(crate) async fn reload_user_config_layer(&self) {
// Refresh layer-backed runtime state for an existing session, including enabled plugin,
// skill, and hook state. Derived config fields such as feature gates and legacy notify
// settings remain session-static.
//
// Prefer `refresh_runtime_config()` when the host can already provide a materialized
// config snapshot. This file-based path exists for legacy local reload flows.
let config_toml_paths = {
let state = self.state.lock().await;
let config = &state.session_configuration.original_config_do_not_use;
let user_config_paths = config
.config_layer_stack
.get_user_layers(
ConfigLayerStackOrdering::LowestPrecedenceFirst,
/*include_disabled*/ true,
)
.into_iter()
.filter_map(|layer| match &layer.name {
ConfigLayerSource::User { file, .. } => Some(file.clone()),
_ => None,
})
.collect::<Vec<_>>();
if user_config_paths.is_empty() {
vec![
state
.session_configuration
.codex_home
.join(CONFIG_TOML_FILE),
]
} else {
user_config_paths
}
};
let mut reloaded_user_configs = Vec::with_capacity(config_toml_paths.len());
for config_toml_path in config_toml_paths {
let user_config = match std::fs::read_to_string(&config_toml_path) {
Ok(contents) => match toml::from_str::<toml::Value>(&contents) {
Ok(config) => config,
Err(err) => {
warn!("failed to parse user config while reloading layer: {err}");
return;
}
},
Err(err) if err.kind() == std::io::ErrorKind::NotFound => {
toml::Value::Table(Default::default())
}
Err(err) => {
warn!("failed to read user config while reloading layer: {err}");
return;
}
};
reloaded_user_configs.push((config_toml_path, user_config));
}
let next_config = {
let state = self.state.lock().await;
let mut config = (*state.session_configuration.original_config_do_not_use).clone();
for (config_toml_path, user_config) in reloaded_user_configs {
config.config_layer_stack = config
.config_layer_stack
.with_user_config(&config_toml_path, user_config);
}
config.tool_suggest =
resolve_tool_suggest_config_from_layer_stack(&config.config_layer_stack);
config
};
self.refresh_runtime_config(next_config).await;
}
async fn build_settings_update_items(
&self,
reference_context_item: Option<&TurnContextItem>,
current_context: &TurnContext,
) -> Vec<ResponseItem> {
// TODO: Make context updates a pure diff of persisted previous/current TurnContextItem
// state so replay/backtracking is deterministic. Runtime inputs that affect model-visible
// context (shell, exec policy, feature gates, previous-turn bridge) should be persisted
// state or explicit non-state replay events.
let previous_turn_settings = {
let state = self.state.lock().await;
state.previous_turn_settings()
};
let shell = self.user_shell();
let exec_policy = self.services.exec_policy.current();
crate::context_manager::updates::build_settings_update_items(
reference_context_item,
previous_turn_settings.as_ref(),
current_context,
shell.as_ref(),
exec_policy.as_ref(),
self.features.enabled(Feature::Personality),
)
}
/// Record a terminal CodexErr before the app-server completion notification is reduced.
pub(crate) fn track_turn_codex_error(&self, turn_context: &TurnContext, error: &CodexErr) {
self.services
.analytics_events_client
.track_turn_codex_error(TurnCodexErrorFact::from_codex_err(
self.thread_id.to_string(),
turn_context.sub_id.clone(),
error,
));
}
/// Persist the event to rollout and send it to clients.
pub(crate) async fn send_event(&self, turn_context: &TurnContext, msg: EventMsg) {
let legacy_source = msg.clone();
self.services
.rollout_thread_trace
.record_codex_turn_event(&turn_context.sub_id, &legacy_source);
self.services
.rollout_thread_trace
.record_tool_call_event(turn_context.sub_id.clone(), &legacy_source);
let event = Event {
id: turn_context.sub_id.clone(),
msg,
};
self.send_event_raw(event).await;
self.maybe_notify_parent_of_terminal_turn(turn_context, &legacy_source)
.await;
self.maybe_mirror_event_text_to_realtime(&legacy_source)
.await;
self.maybe_clear_realtime_handoff_for_event(&legacy_source)
.await;
let show_raw_agent_reasoning = self.show_raw_agent_reasoning();
for legacy in legacy_source.as_legacy_events(show_raw_agent_reasoning) {
let legacy_event = Event {
id: turn_context.sub_id.clone(),
msg: legacy,
};
self.send_event_raw(legacy_event).await;
}
}
/// Forwards terminal turn events from spawned MultiAgentV2 children to their direct parent.
async fn maybe_notify_parent_of_terminal_turn(
&self,
turn_context: &TurnContext,
msg: &EventMsg,
) {
if turn_context.multi_agent_version != MultiAgentVersion::V2 {
return;
}
if !matches!(msg, EventMsg::TurnComplete(_) | EventMsg::TurnAborted(_)) {
return;
}
let SessionSource::SubAgent(SubAgentSource::ThreadSpawn {
parent_thread_id,
agent_path: Some(child_agent_path),
..
}) = &turn_context.session_source
else {
return;
};
let Some(status) = agent_status_from_event(msg) else {
return;
};
if !is_final(&status) {
return;
}
self.forward_child_completion_to_parent(
turn_context,
*parent_thread_id,
child_agent_path,
status,
)
.await;
}
/// Sends the standard completion envelope from a spawned MultiAgentV2 child to its parent.
async fn forward_child_completion_to_parent(
&self,
turn_context: &TurnContext,
parent_thread_id: ThreadId,
child_agent_path: &codex_protocol::AgentPath,
status: AgentStatus,
) {
let Some(parent_agent_path) = child_agent_path
.as_str()
.rsplit_once('/')
.and_then(|(parent, _)| codex_protocol::AgentPath::try_from(parent).ok())
else {
return;
};
let message = format_subagent_notification_message(child_agent_path.as_str(), &status);
// `communication` owns the message. Keep a second copy only when the
// recorder will actually need it after parent delivery succeeds.
let trace_message = self
.services
.rollout_thread_trace
.is_enabled()
.then(|| message.clone());
let communication = InterAgentCommunication::new(
child_agent_path.clone(),
parent_agent_path,
Vec::new(),
message,
/*trigger_turn*/ false,
);
if let Err(err) = self
.services
.agent_control
.send_inter_agent_communication(parent_thread_id, communication)
.await
{
debug!("failed to notify parent thread {parent_thread_id}: {err}");
return;
}
if let Some(message) = trace_message {
self.services
.rollout_thread_trace
.record_agent_result_interaction(
turn_context.sub_id.as_str(),
parent_thread_id,
&AgentResultTracePayload {
child_agent_path: child_agent_path.as_str(),
message: &message,
status: &status,
},
);
}
}
async fn maybe_mirror_event_text_to_realtime(&self, msg: &EventMsg) {
let Some(text) = realtime_text_for_event(msg) else {
return;
};
if self.conversation.running_state().await.is_none() {
return;
}
if let Err(err) = self.conversation.handoff_out(text).await {
debug!("failed to mirror event text to realtime conversation: {err}");
}
}
async fn maybe_clear_realtime_handoff_for_event(&self, msg: &EventMsg) {
if !matches!(msg, EventMsg::TurnComplete(_)) {
return;
}
if let Err(err) = self.conversation.handoff_complete().await {
debug!("failed to finalize realtime handoff output: {err}");
}
self.conversation.clear_active_handoff().await;
}
pub(crate) async fn send_event_raw(&self, event: Event) {
// Persist the event into rollout storage (the store filters as needed).
let rollout_items = vec![RolloutItem::EventMsg(event.msg.clone())];
self.persist_rollout_items(&rollout_items).await;
self.services
.rollout_thread_trace
.record_protocol_event(&event.msg);
self.deliver_event_raw(event).await;
}
async fn deliver_event_raw(&self, event: Event) {
// Record the last known agent status.
if let Some(status) = agent_status_from_event(&event.msg) {
self.agent_status.send_replace(status);
}
if let Err(e) = self.tx_event.send(event).await {
debug!("dropping event because channel is closed: {e}");
}
}
pub(crate) async fn emit_turn_item_started(&self, turn_context: &TurnContext, item: &TurnItem) {
self.send_event(
turn_context,
EventMsg::ItemStarted(ItemStartedEvent {
thread_id: self.thread_id,
turn_id: turn_context.sub_id.clone(),
item: item.clone(),
started_at_ms: now_unix_timestamp_ms(),
}),
)
.await;
}
pub(crate) async fn emit_turn_item_completed(
&self,
turn_context: &TurnContext,
item: TurnItem,
) {
record_turn_ttfm_metric(turn_context, &item).await;
self.send_event(
turn_context,
EventMsg::ItemCompleted(ItemCompletedEvent {
thread_id: self.thread_id,
turn_id: turn_context.sub_id.clone(),
item,
completed_at_ms: now_unix_timestamp_ms(),
}),
)
.await;
}
/// Adds an execpolicy amendment to both the in-memory and on-disk policies so future
/// commands can use the newly approved prefix.
pub(crate) async fn persist_execpolicy_amendment(
&self,
amendment: &ExecPolicyAmendment,
) -> Result<(), ExecPolicyUpdateError> {
let codex_home = self
.state
.lock()
.await
.session_configuration
.codex_home()
.clone();
self.services
.exec_policy
.append_amendment_and_update(&codex_home, amendment)
.await?;
Ok(())
}
pub(crate) async fn turn_context_for_sub_id(&self, sub_id: &str) -> Option<Arc<TurnContext>> {
let active = self.active_turn.lock().await;
active
.as_ref()
.and_then(|turn| turn.task.as_ref())
.filter(|task| task.turn_context.sub_id == sub_id)
.map(|task| Arc::clone(&task.turn_context))
}
async fn active_turn_context_and_cancellation_token(
&self,
) -> Option<(Arc<TurnContext>, CancellationToken)> {
let active = self.active_turn.lock().await;
let task = active.as_ref()?.task.as_ref()?;
Some((
Arc::clone(&task.turn_context),
task.cancellation_token.child_token(),
))
}
pub(crate) async fn record_execpolicy_amendment_message(
&self,
sub_id: &str,
amendment: &ExecPolicyAmendment,
) {
let Some(prefixes) = format_allow_prefixes(vec![amendment.command.clone()]) else {
warn!("execpolicy amendment for {sub_id} had no command prefix");
return;
};
let message: ResponseItem =
ContextualUserFragment::into(ApprovedCommandPrefixSaved::new(prefixes));
let turn_context = self.turn_context_for_sub_id(sub_id).await;
self.inject_no_new_turn(vec![message], turn_context.as_deref())
.await;
}
pub(crate) async fn persist_network_policy_amendment(
&self,
amendment: &NetworkPolicyAmendment,
network_approval_context: &NetworkApprovalContext,
) -> anyhow::Result<()> {
let _refresh_guard = self
.managed_network_proxy_refresh_lock
.acquire()
.await
.map_err(|_| anyhow::anyhow!("managed network proxy refresh semaphore closed"))?;
let host =
Self::validated_network_policy_amendment_host(amendment, network_approval_context)?;
let codex_home = self
.state
.lock()
.await
.session_configuration
.codex_home()
.clone();
let execpolicy_amendment =
execpolicy_network_rule_amendment(amendment, network_approval_context, &host);
if let Some(started_network_proxy) = self.services.network_proxy.load_full() {
let proxy = started_network_proxy.proxy();
match amendment.action {
NetworkPolicyRuleAction::Allow => proxy
.add_allowed_domain(&host)
.await
.map_err(|err| anyhow::anyhow!("failed to update runtime allowlist: {err}"))?,
NetworkPolicyRuleAction::Deny => proxy
.add_denied_domain(&host)
.await
.map_err(|err| anyhow::anyhow!("failed to update runtime denylist: {err}"))?,
}
}
self.services
.exec_policy
.append_network_rule_and_update(
&codex_home,
&host,
execpolicy_amendment.protocol,
execpolicy_amendment.decision,
Some(execpolicy_amendment.justification),
)
.await
.map_err(|err| {
anyhow::anyhow!("failed to persist network policy amendment to execpolicy: {err}")
})?;
Ok(())
}
fn validated_network_policy_amendment_host(
amendment: &NetworkPolicyAmendment,
network_approval_context: &NetworkApprovalContext,
) -> anyhow::Result<String> {
let approved_host = normalize_host(&network_approval_context.host);
let amendment_host = normalize_host(&amendment.host);
if amendment_host != approved_host {
return Err(anyhow::anyhow!(
"network policy amendment host '{}' does not match approved host '{}'",
amendment.host,
network_approval_context.host
));
}
Ok(approved_host)
}
pub(crate) async fn record_network_policy_amendment_message(
&self,
sub_id: &str,
amendment: &NetworkPolicyAmendment,
) {
let message: ResponseItem = ContextualUserFragment::into(NetworkRuleSaved::new(amendment));
let turn_context = self.turn_context_for_sub_id(sub_id).await;
self.inject_no_new_turn(vec![message], turn_context.as_deref())
.await;
}
/// Emit an exec approval request event and await the user's decision.
///
/// The request is keyed by `call_id` + `approval_id` so matching responses
/// are delivered to the correct in-flight turn. If the pending approval is
/// cleared before a response arrives, treat it as an abort so interrupted
/// turns do not continue on a synthetic denial.
///
/// Note that if `available_decisions` is `None`, then the other fields will
/// be used to derive the available decisions via
/// [ExecApprovalRequestEvent::default_available_decisions].
#[allow(clippy::too_many_arguments)]
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn request_command_approval(
&self,
turn_context: &TurnContext,
call_id: String,
approval_id: Option<String>,
command: Vec<String>,
cwd: AbsolutePathBuf,
reason: Option<String>,
network_approval_context: Option<NetworkApprovalContext>,
proposed_execpolicy_amendment: Option<ExecPolicyAmendment>,
additional_permissions: Option<AdditionalPermissionProfile>,
available_decisions: Option<Vec<ReviewDecision>>,
) -> ReviewDecision {
// command-level approvals use `call_id`.
// `approval_id` is only present for subcommand callbacks (execve intercept)
let effective_approval_id = approval_id.clone().unwrap_or_else(|| call_id.clone());
// Add the tx_approve callback to the map before sending the request.
let (tx_approve, rx_approve) = oneshot::channel();
let prev_entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.insert_pending_approval(effective_approval_id.clone(), tx_approve)
}
None => None,
}
};
if prev_entry.is_some() {
warn!("Overwriting existing pending approval for call_id: {effective_approval_id}");
}
let parsed_cmd = parse_command(&command);
let proposed_network_policy_amendments = network_approval_context.as_ref().map(|context| {
vec![
NetworkPolicyAmendment {
host: context.host.clone(),
action: NetworkPolicyRuleAction::Allow,
},
NetworkPolicyAmendment {
host: context.host.clone(),
action: NetworkPolicyRuleAction::Deny,
},
]
});
let available_decisions = available_decisions.unwrap_or_else(|| {
ExecApprovalRequestEvent::default_available_decisions(
network_approval_context.as_ref(),
proposed_execpolicy_amendment.as_ref(),
proposed_network_policy_amendments.as_deref(),
additional_permissions.as_ref(),
)
});
let event = EventMsg::ExecApprovalRequest(ExecApprovalRequestEvent {
call_id,
approval_id,
turn_id: turn_context.sub_id.clone(),
started_at_ms: now_unix_timestamp_ms(),
command,
cwd,
reason,
network_approval_context,
proposed_execpolicy_amendment,
proposed_network_policy_amendments,
additional_permissions,
available_decisions: Some(available_decisions),
parsed_cmd,
});
self.send_event(turn_context, event).await;
rx_approve.await.unwrap_or(ReviewDecision::Abort)
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn request_patch_approval(
&self,
turn_context: &TurnContext,
call_id: String,
changes: HashMap<PathBuf, FileChange>,
reason: Option<String>,
grant_root: Option<PathBuf>,
) -> oneshot::Receiver<ReviewDecision> {
// Add the tx_approve callback to the map before sending the request.
let (tx_approve, rx_approve) = oneshot::channel();
let approval_id = call_id.clone();
let prev_entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.insert_pending_approval(approval_id.clone(), tx_approve)
}
None => None,
}
};
if prev_entry.is_some() {
warn!("Overwriting existing pending approval for call_id: {approval_id}");
}
let event = EventMsg::ApplyPatchApprovalRequest(ApplyPatchApprovalRequestEvent {
call_id,
turn_id: turn_context.sub_id.clone(),
started_at_ms: now_unix_timestamp_ms(),
changes,
reason,
grant_root,
});
self.send_event(turn_context, event).await;
rx_approve
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub(crate) async fn request_permissions_for_environment(
self: &Arc<Self>,
turn_context: &Arc<TurnContext>,
call_id: String,
args: RequestPermissionsArgs,
environment: TurnEnvironmentSelection,
cancellation_token: CancellationToken,
) -> Option<RequestPermissionsResponse> {
match turn_context.as_ref().approval_policy.value() {
AskForApproval::Never => {
return Some(RequestPermissionsResponse {
permissions: RequestPermissionProfile::default(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
});
}
AskForApproval::Granular(granular_config)
if !granular_config.allows_request_permissions() =>
{
return Some(RequestPermissionsResponse {
permissions: RequestPermissionProfile::default(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
});
}
AskForApproval::OnFailure
| AskForApproval::OnRequest
| AskForApproval::UnlessTrusted
| AskForApproval::Granular(_) => {}
}
let requested_permissions = args.permissions;
if crate::guardian::routes_approval_to_guardian(turn_context.as_ref()) {
let originating_turn_state = {
let active = self.active_turn.lock().await;
active.as_ref().map(|active| Arc::clone(&active.turn_state))
};
let review_id = crate::guardian::new_guardian_review_id();
let session = Arc::clone(self);
let turn = Arc::clone(turn_context);
let request = crate::guardian::GuardianApprovalRequest::RequestPermissions {
id: call_id,
turn_id: turn_context.sub_id.clone(),
reason: args.reason,
permissions: requested_permissions.clone(),
};
let review_rx = crate::guardian::spawn_approval_request_review(
session,
turn,
review_id,
request,
/*retry_reason*/ None,
codex_analytics::GuardianApprovalRequestSource::MainTurn,
cancellation_token.clone(),
);
let decision = tokio::select! {
biased;
_ = cancellation_token.cancelled() => return None,
decision = review_rx => decision.unwrap_or(ReviewDecision::Denied),
};
let response = match decision {
ReviewDecision::Approved | ReviewDecision::ApprovedExecpolicyAmendment { .. } => {
RequestPermissionsResponse {
permissions: requested_permissions.clone(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
}
}
ReviewDecision::ApprovedForSession => RequestPermissionsResponse {
permissions: requested_permissions.clone(),
scope: PermissionGrantScope::Session,
strict_auto_review: false,
},
ReviewDecision::NetworkPolicyAmendment {
network_policy_amendment,
} => match network_policy_amendment.action {
NetworkPolicyRuleAction::Allow => RequestPermissionsResponse {
permissions: requested_permissions.clone(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
},
NetworkPolicyRuleAction::Deny => RequestPermissionsResponse {
permissions: RequestPermissionProfile::default(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
},
},
ReviewDecision::Abort | ReviewDecision::Denied | ReviewDecision::TimedOut => {
RequestPermissionsResponse {
permissions: RequestPermissionProfile::default(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
}
}
};
let response = Self::normalize_request_permissions_response(
requested_permissions,
response,
environment.cwd.as_path(),
);
self.record_granted_request_permissions_for_turn(
&response,
&environment.environment_id,
originating_turn_state.as_ref(),
)
.await;
return Some(response);
}
let (tx_response, rx_response) = oneshot::channel();
let prev_entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.insert_pending_request_permissions(
call_id.clone(),
PendingRequestPermissions {
tx_response,
requested_permissions: requested_permissions.clone(),
environment: environment.clone(),
},
)
}
None => None,
}
};
if prev_entry.is_some() {
warn!("Overwriting existing pending request_permissions for call_id: {call_id}");
}
let event = EventMsg::RequestPermissions(RequestPermissionsEvent {
call_id: call_id.clone(),
turn_id: turn_context.sub_id.clone(),
environment_id: Some(environment.environment_id.clone()),
started_at_ms: now_unix_timestamp_ms(),
reason: args.reason,
permissions: requested_permissions,
cwd: Some(environment.cwd),
});
self.send_event(turn_context.as_ref(), event).await;
tokio::select! {
biased;
_ = cancellation_token.cancelled() => {
let mut active = self.active_turn.lock().await;
if let Some(at) = active.as_mut() {
let mut ts = at.turn_state.lock().await;
let _ = ts.remove_pending_request_permissions(&call_id);
}
None
}
response = rx_response => response.ok(),
}
}
pub(crate) async fn request_permissions_for_cwd(
self: &Arc<Self>,
turn_context: &Arc<TurnContext>,
call_id: String,
args: RequestPermissionsArgs,
cwd: AbsolutePathBuf,
cancellation_token: CancellationToken,
) -> Option<RequestPermissionsResponse> {
let turn_environment = match args.environment_id.as_deref() {
Some(environment_id) => turn_context
.environments
.turn_environments
.iter()
.find(|environment| environment.environment_id == environment_id),
None => turn_context.environments.primary(),
};
let Some(turn_environment) = turn_environment else {
return Some(RequestPermissionsResponse {
permissions: RequestPermissionProfile::default(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
});
};
let mut environment = turn_environment.selection();
environment.cwd = cwd;
self.request_permissions_for_environment(
turn_context,
call_id,
args,
environment,
cancellation_token,
)
.await
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn request_user_input(
&self,
turn_context: &TurnContext,
call_id: String,
args: RequestUserInputArgs,
) -> Option<RequestUserInputResponse> {
let sub_id = turn_context.sub_id.clone();
let (tx_response, rx_response) = oneshot::channel();
let event_id = sub_id.clone();
let prev_entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.insert_pending_user_input(sub_id, tx_response)
}
None => None,
}
};
if prev_entry.is_some() {
warn!("Overwriting existing pending user input for sub_id: {event_id}");
}
let event = EventMsg::RequestUserInput(RequestUserInputEvent {
call_id,
turn_id: turn_context.sub_id.clone(),
questions: args.questions,
});
turn_context
.turn_metadata_state
.mark_user_input_requested_during_turn();
self.send_event(turn_context, event).await;
rx_response.await.ok()
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn notify_user_input_response(
&self,
sub_id: &str,
response: RequestUserInputResponse,
) {
let entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.remove_pending_user_input(sub_id)
}
None => None,
}
};
match entry {
Some(tx_response) => {
tx_response.send(response).ok();
}
None => {
warn!("No pending user input found for sub_id: {sub_id}");
}
}
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn notify_request_permissions_response(
&self,
call_id: &str,
response: RequestPermissionsResponse,
) {
let (entry, originating_turn_state) = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
let entry = ts.remove_pending_request_permissions(call_id);
let originating_turn_state = entry.as_ref().map(|_| Arc::clone(&at.turn_state));
(entry, originating_turn_state)
}
None => (None, None),
}
};
match entry {
Some(entry) => {
let response = Self::normalize_request_permissions_response(
entry.requested_permissions,
response,
entry.environment.cwd.as_path(),
);
self.record_granted_request_permissions_for_turn(
&response,
&entry.environment.environment_id,
originating_turn_state.as_ref(),
)
.await;
entry.tx_response.send(response).ok();
}
None => {
warn!("No pending request_permissions found for call_id: {call_id}");
}
}
}
fn normalize_request_permissions_response(
requested_permissions: RequestPermissionProfile,
response: RequestPermissionsResponse,
cwd: &Path,
) -> RequestPermissionsResponse {
if response.strict_auto_review && matches!(response.scope, PermissionGrantScope::Session) {
return RequestPermissionsResponse {
permissions: RequestPermissionProfile::default(),
scope: PermissionGrantScope::Turn,
strict_auto_review: false,
};
}
if response.permissions.is_empty() {
return response;
}
RequestPermissionsResponse {
permissions: intersect_permission_profiles(
requested_permissions.into(),
response.permissions.into(),
cwd,
)
.into(),
scope: response.scope,
strict_auto_review: response.strict_auto_review,
}
}
async fn record_granted_request_permissions_for_turn(
&self,
response: &RequestPermissionsResponse,
environment_id: &str,
originating_turn_state: Option<&Arc<Mutex<crate::state::TurnState>>>,
) {
if response.permissions.is_empty() {
return;
}
match response.scope {
PermissionGrantScope::Turn => {
if let Some(turn_state) = originating_turn_state {
let mut ts = turn_state.lock().await;
let permissions: AdditionalPermissionProfile =
response.permissions.clone().into();
ts.record_granted_permissions(environment_id, permissions);
if response.strict_auto_review {
ts.enable_strict_auto_review();
}
}
}
PermissionGrantScope::Session => {
let mut state = self.state.lock().await;
state.record_granted_permissions(
environment_id,
response.permissions.clone().into(),
);
}
}
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn reads must stay consistent with the matching turn state"
)]
pub(crate) async fn granted_turn_permissions(
&self,
environment_id: &str,
) -> Option<AdditionalPermissionProfile> {
let active = self.active_turn.lock().await;
let active = active.as_ref()?;
let ts = active.turn_state.lock().await;
ts.granted_permissions(environment_id)
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn reads must stay consistent with the matching turn state"
)]
pub(crate) async fn strict_auto_review_enabled_for_turn(&self) -> bool {
let active = self.active_turn.lock().await;
let Some(active) = active.as_ref() else {
return false;
};
let ts = active.turn_state.lock().await;
ts.strict_auto_review_enabled()
}
pub(crate) async fn granted_session_permissions(
&self,
environment_id: &str,
) -> Option<AdditionalPermissionProfile> {
let state = self.state.lock().await;
state.granted_permissions(environment_id)
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn notify_dynamic_tool_response(&self, call_id: &str, response: DynamicToolResponse) {
let entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.remove_pending_dynamic_tool(call_id)
}
None => None,
}
};
match entry {
Some(tx_response) => {
tx_response.send(response).ok();
}
None => {
warn!("No pending dynamic tool call found for call_id: {call_id}");
}
}
}
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn notify_approval(&self, approval_id: &str, decision: ReviewDecision) {
let entry = {
let mut active = self.active_turn.lock().await;
match active.as_mut() {
Some(at) => {
let mut ts = at.turn_state.lock().await;
ts.remove_pending_approval(approval_id)
}
None => None,
}
};
match entry {
Some(tx_approve) => {
tx_approve.send(decision).ok();
}
None => {
warn!("No pending approval found for call_id: {approval_id}");
}
}
}
/// Records conversation items: append to history, persist to rollout, and
/// notify clients observing raw response items.
pub(crate) fn prepare_conversation_items_for_history<'a>(
&self,
turn_context: &TurnContext,
items: &'a [ResponseItem],
) -> Cow<'a, [ResponseItem]> {
if !turn_context.features.enabled(Feature::ResizeAllImages) {
return Cow::Borrowed(items);
}
let mut prepared_items = items.to_vec();
prepare_response_items(&mut prepared_items);
Cow::Owned(prepared_items)
}
pub(crate) fn response_item_from_user_input(
&self,
turn_context: &TurnContext,
input: Vec<UserInput>,
) -> ResponseItem {
let local_image_preparation = if turn_context.features.enabled(Feature::ResizeAllImages) {
LocalImagePreparation::Defer
} else {
LocalImagePreparation::Process
};
ResponseItem::from(ResponseInputItem::from_user_input(
input,
local_image_preparation,
))
}
pub(crate) async fn record_conversation_items(
&self,
turn_context: &TurnContext,
items: &[ResponseItem],
) {
let items = self.prepare_conversation_items_for_history(turn_context, items);
let items = items.as_ref();
{
let mut state = self.state.lock().await;
state.record_items(items.iter(), turn_context.truncation_policy);
}
self.persist_rollout_response_items(items).await;
self.send_raw_response_items(turn_context, items).await;
}
async fn maybe_warn_on_server_model_mismatch(
self: &Arc<Self>,
turn_context: &Arc<TurnContext>,
server_model: String,
) -> bool {
let requested_model = turn_context.model_info.slug.clone();
let server_model_normalized = server_model.to_ascii_lowercase();
let requested_model_normalized = requested_model.to_ascii_lowercase();
if server_model_normalized == requested_model_normalized {
info!("server reported model {server_model} (matches requested model)");
return false;
}
warn!("server reported model {server_model} while requested model was {requested_model}");
let warning_message = format!(
"Your account was flagged for potentially high-risk cyber activity and this request was routed to gpt-5.2 as a fallback. To regain access to gpt-5.3-codex, apply for trusted access: {CYBER_VERIFY_URL} or learn more: {CYBER_SAFETY_URL}"
);
self.send_event(
turn_context,
EventMsg::ModelReroute(ModelRerouteEvent {
from_model: requested_model.clone(),
to_model: server_model.clone(),
reason: ModelRerouteReason::HighRiskCyberActivity,
}),
)
.await;
self.send_event(
turn_context,
EventMsg::Warning(WarningEvent {
message: warning_message.clone(),
}),
)
.await;
true
}
pub(crate) async fn emit_model_verification(
self: &Arc<Self>,
turn_context: &Arc<TurnContext>,
verifications: Vec<ModelVerification>,
) {
self.send_event(
turn_context,
EventMsg::ModelVerification(ModelVerificationEvent { verifications }),
)
.await;
}
pub(crate) async fn emit_turn_moderation_metadata(
self: &Arc<Self>,
turn_context: &Arc<TurnContext>,
metadata: TurnModerationMetadataEvent,
) {
self.send_event(turn_context, EventMsg::TurnModerationMetadata(metadata))
.await;
}
#[cfg(test)]
pub(crate) async fn replace_history(
&self,
items: Vec<ResponseItem>,
reference_context_item: Option<TurnContextItem>,
) {
let mut state = self.state.lock().await;
state.replace_history(items, reference_context_item);
}
pub(crate) async fn replace_compacted_history(
&self,
items: Vec<ResponseItem>,
reference_context_item: Option<TurnContextItem>,
compacted_item: CompactedItem,
) {
{
let mut state = self.state.lock().await;
state.replace_history(items, reference_context_item.clone());
}
self.persist_rollout_items(&[RolloutItem::Compacted(compacted_item)])
.await;
if let Some(turn_context_item) = reference_context_item {
self.persist_rollout_items(&[RolloutItem::TurnContext(turn_context_item)])
.await;
}
{
let mut state = self.state.lock().await;
state.queue_pending_session_start_source(codex_hooks::SessionStartSource::Compact);
}
}
async fn persist_rollout_response_items(&self, items: &[ResponseItem]) {
let rollout_items: Vec<RolloutItem> = items
.iter()
.cloned()
.map(RolloutItem::ResponseItem)
.collect();
self.persist_rollout_items(&rollout_items).await;
}
pub fn enabled(&self, feature: Feature) -> bool {
self.features.enabled(feature)
}
pub(crate) fn features(&self) -> ManagedFeatures {
self.features.clone()
}
pub(crate) async fn collaboration_mode(&self) -> CollaborationMode {
let state = self.state.lock().await;
state.session_configuration.collaboration_mode.clone()
}
pub(crate) fn multi_agent_version(&self) -> Option<MultiAgentVersion> {
self.multi_agent_version.get().copied()
}
pub(crate) fn set_multi_agent_version_if_unset(
&self,
multi_agent_version: MultiAgentVersion,
) -> MultiAgentVersion {
*self.multi_agent_version.get_or_init(|| multi_agent_version)
}
pub(crate) fn resolve_multi_agent_version_for_model(
&self,
model_info: &ModelInfo,
config: &Config,
) -> MultiAgentVersion {
if let Some(multi_agent_version) = self.multi_agent_version() {
return multi_agent_version;
}
let selected = model_info
.multi_agent_version
.unwrap_or_else(|| config.multi_agent_version_from_features());
self.set_multi_agent_version_if_unset(selected)
}
async fn send_raw_response_items(&self, turn_context: &TurnContext, items: &[ResponseItem]) {
for item in items {
self.send_event(
turn_context,
EventMsg::RawResponseItem(RawResponseItemEvent { item: item.clone() }),
)
.await;
}
}
pub(crate) async fn build_initial_context(
&self,
turn_context: &TurnContext,
) -> Vec<ResponseItem> {
let mut developer_sections = Vec::<String>::with_capacity(8);
let mut contextual_user_sections = Vec::<String>::with_capacity(2);
let mut separate_developer_sections = Vec::<String>::new();
let (
reference_context_item,
previous_turn_settings,
collaboration_mode,
base_instructions,
session_source,
auto_compact_window_id,
) = {
let state = self.state.lock().await;
(
state.reference_context_item(),
state.previous_turn_settings(),
state.session_configuration.collaboration_mode.clone(),
state.session_configuration.base_instructions.clone(),
state.session_configuration.session_source.clone(),
state.auto_compact_window_id(),
)
};
if let Some(model_switch_message) =
crate::context_manager::updates::build_model_instructions_update_item(
previous_turn_settings.as_ref(),
turn_context,
)
{
developer_sections.push(model_switch_message);
}
if turn_context.config.include_permissions_instructions {
developer_sections.push(
PermissionsInstructions::from_permission_profile(
&turn_context.permission_profile,
turn_context.approval_policy.value(),
turn_context.config.approvals_reviewer,
self.services.exec_policy.current().as_ref(),
#[allow(deprecated)]
&turn_context.cwd,
turn_context
.features
.enabled(Feature::ExecPermissionApprovals),
turn_context
.features
.enabled(Feature::RequestPermissionsTool),
)
.render(),
);
}
let separate_guardian_developer_message =
crate::guardian::is_guardian_reviewer_source(&session_source);
// Keep the guardian policy prompt out of the aggregated developer bundle so it
// stays isolated as its own top-level developer message for guardian subagents.
if !separate_guardian_developer_message
&& let Some(developer_instructions) = turn_context.developer_instructions.as_deref()
&& !developer_instructions.is_empty()
{
developer_sections.push(developer_instructions.to_string());
}
// Add developer instructions from collaboration_mode if they exist and are non-empty
if turn_context.config.include_collaboration_mode_instructions
&& let Some(collab_instructions) =
CollaborationModeInstructions::from_collaboration_mode(&collaboration_mode)
{
developer_sections.push(collab_instructions.render());
}
if let Some(realtime_update) = crate::context_manager::updates::build_initial_realtime_item(
reference_context_item.as_ref(),
previous_turn_settings.as_ref(),
turn_context,
) {
developer_sections.push(realtime_update);
}
if self.features.enabled(Feature::Personality)
&& let Some(personality) = turn_context.personality
{
let model_info = turn_context.model_info.clone();
let has_baked_personality = model_info.supports_personality()
&& base_instructions == model_info.get_model_instructions(Some(personality));
if !has_baked_personality
&& let Some(personality_message) =
crate::context_manager::updates::personality_message_for(
&model_info,
personality,
)
{
developer_sections
.push(PersonalitySpecInstructions::new(personality_message).render());
}
}
if turn_context.config.include_apps_instructions && turn_context.apps_enabled() {
let mcp_connection_manager = self.services.mcp_connection_manager.load_full();
let accessible_and_enabled_connectors =
connectors::list_accessible_and_enabled_connectors_from_manager(
&mcp_connection_manager,
&turn_context.config,
)
.await;
if let Some(apps_instructions) =
AppsInstructions::from_connectors(&accessible_and_enabled_connectors)
{
developer_sections.push(apps_instructions.render());
}
}
if turn_context.config.include_skill_instructions {
let available_skills = build_available_skills(
&turn_context.turn_skills.outcome,
default_skill_metadata_budget(turn_context.model_info.context_window),
SkillRenderSideEffects::ThreadStart {
session_telemetry: &self.services.session_telemetry,
},
);
if let Some(available_skills) = available_skills {
let warning_message = available_skills.warning_message.clone();
let skills_instructions = AvailableSkillsInstructions::from(available_skills);
if let Some(warning_message) = warning_message {
self.send_event_raw(Event {
id: String::new(),
msg: EventMsg::Warning(WarningEvent {
message: warning_message,
}),
})
.await;
}
developer_sections.push(skills_instructions.render());
}
}
let loaded_plugins = self
.services
.plugins_manager
.plugins_for_config(&turn_context.config.plugins_config_input())
.await;
if let Some(plugin_instructions) =
AvailablePluginsInstructions::from_plugins(loaded_plugins.capability_summaries())
{
developer_sections.push(plugin_instructions.render());
}
let context_contributors = self.services.extensions.context_contributors().to_vec();
for contributor in context_contributors {
for fragment in contributor
.contribute(
&self.services.session_extension_data,
&self.services.thread_extension_data,
)
.await
{
match fragment.slot() {
PromptSlot::DeveloperPolicy | PromptSlot::DeveloperCapabilities => {
developer_sections.push(fragment.text().to_string());
}
PromptSlot::ContextualUser => {
contextual_user_sections.push(fragment.text().to_string());
}
PromptSlot::SeparateDeveloper => {
separate_developer_sections.push(fragment.text().to_string());
}
}
}
}
if let Some(user_instructions) = turn_context.user_instructions.as_deref() {
contextual_user_sections.push(
UserInstructions {
text: user_instructions.to_string(),
#[allow(deprecated)]
directory: turn_context.cwd.to_string_lossy().into_owned(),
}
.render(),
);
}
// This is full-context metadata. Steady-state context diffs should not re-emit it.
if turn_context.features.enabled(Feature::TokenBudget)
&& let Some(model_context_window) = turn_context.model_context_window()
{
developer_sections.push(
crate::context::TokenBudgetContext::new(
auto_compact_window_id,
model_context_window,
)
.render(),
);
}
if turn_context.config.include_environment_context {
let shell = self.user_shell();
let subagents = self
.services
.agent_control
.format_environment_context_subagents(self.thread_id)
.await;
contextual_user_sections.push(
crate::context::EnvironmentContext::from_turn_context(turn_context, shell.as_ref())
.with_subagents(subagents)
.render(),
);
}
let multi_agent_v2_usage_hint_text =
multi_agents::usage_hint_text(turn_context, &session_source);
let mut items = Vec::with_capacity(4);
if let Some(developer_message) =
crate::context_manager::updates::build_developer_update_item(developer_sections)
{
items.push(developer_message);
}
for section in separate_developer_sections {
if let Some(developer_message) =
crate::context_manager::updates::build_developer_update_item(vec![section])
{
items.push(developer_message);
}
}
if let Some(usage_hint_text) = multi_agent_v2_usage_hint_text
&& let Some(usage_hint_message) =
crate::context_manager::updates::build_developer_update_item(vec![
usage_hint_text.to_string(),
])
{
items.push(usage_hint_message);
}
if let Some(contextual_user_message) =
crate::context_manager::updates::build_contextual_user_message(contextual_user_sections)
{
items.push(contextual_user_message);
}
// Emit the guardian policy prompt as a separate developer item so the guardian
// subagent sees a distinct, easy-to-audit instruction block.
if separate_guardian_developer_message
&& let Some(developer_instructions) = turn_context.developer_instructions.as_deref()
&& !developer_instructions.is_empty()
&& let Some(guardian_developer_message) =
crate::context_manager::updates::build_developer_update_item(vec![
developer_instructions.to_string(),
])
{
items.push(guardian_developer_message);
}
items
}
pub(crate) async fn persist_rollout_items(&self, items: &[RolloutItem]) {
if let Some(live_thread) = self.live_thread()
&& let Err(e) = live_thread.append_items(items).await
{
error!("failed to record rollout items: {e:#}");
}
}
pub(crate) async fn clone_history(&self) -> ContextManager {
let state = self.state.lock().await;
state.clone_history()
}
pub(crate) async fn current_window_id(&self) -> String {
let state = self.state.lock().await;
let thread_id = self.thread_id;
let window_id = state.auto_compact_window_id();
format!("{thread_id}:{window_id}")
}
pub(crate) async fn advance_auto_compact_window_id(&self) -> u64 {
let mut state = self.state.lock().await;
state.advance_auto_compact_window_id()
}
pub(crate) async fn request_new_context_window(&self) {
let mut state = self.state.lock().await;
state.request_new_context_window();
}
pub(crate) async fn maybe_start_new_context_window(
&self,
turn_context: &TurnContext,
) -> Option<u64> {
let window_id = {
let mut state = self.state.lock().await;
state.start_new_context_window_if_requested()
};
let window_id = window_id?;
let context_items = self.build_initial_context(turn_context).await;
let turn_context_item = turn_context.to_turn_context_item();
let replacement_history = context_items;
{
let mut state = self.state.lock().await;
state.replace_history(replacement_history.clone(), Some(turn_context_item.clone()));
};
self.persist_rollout_items(&[
RolloutItem::Compacted(CompactedItem {
message: String::new(),
replacement_history: Some(replacement_history),
window_id: Some(window_id),
}),
RolloutItem::TurnContext(turn_context_item),
])
.await;
{
let mut state = self.state.lock().await;
state.queue_pending_session_start_source(codex_hooks::SessionStartSource::Compact);
}
self.recompute_token_usage(turn_context).await;
Some(window_id)
}
pub(crate) async fn reference_context_item(&self) -> Option<TurnContextItem> {
let state = self.state.lock().await;
state.reference_context_item()
}
/// Persist the latest turn context snapshot for the first real user turn and for
/// steady-state turns that emit model-visible context updates.
///
/// When the reference snapshot is missing, this injects full initial context. Otherwise, it
/// emits only settings diff items.
///
/// If full context is injected and a model switch occurred, this prepends the
/// `<model_switch>` developer message so model-specific instructions are not lost.
///
/// This is the normal runtime path that establishes a new `reference_context_item`.
/// Mid-turn compaction is the other path that can re-establish that baseline when it
/// reinjects full initial context into replacement history. Other non-regular tasks
/// intentionally do not update the baseline.
#[instrument(level = "trace", skip_all)]
pub(crate) async fn record_context_updates_and_set_reference_context_item(
&self,
turn_context: &TurnContext,
) {
let reference_context_item = {
let state = self.state.lock().await;
state.reference_context_item()
};
let should_inject_full_context = reference_context_item.is_none();
let context_items = if should_inject_full_context {
self.build_initial_context(turn_context).await
} else {
// Steady-state path: append only context diffs to minimize token overhead.
self.build_settings_update_items(reference_context_item.as_ref(), turn_context)
.await
};
let turn_context_item = turn_context.to_turn_context_item();
if !context_items.is_empty() {
self.record_conversation_items(turn_context, &context_items)
.await;
}
// Persist one `TurnContextItem` per real user turn so resume/lazy replay can recover the
// latest durable baseline even when this turn emitted no model-visible context diffs.
self.persist_rollout_items(&[RolloutItem::TurnContext(turn_context_item.clone())])
.await;
// Advance the in-memory diff baseline even when this turn emitted no model-visible
// context items. This keeps later runtime diffing aligned with the current turn state.
let mut state = self.state.lock().await;
state.set_reference_context_item(Some(turn_context_item));
}
pub(crate) async fn update_token_usage_info(
&self,
turn_context: &TurnContext,
token_usage: Option<&TokenUsage>,
) {
self.record_token_usage_info(turn_context, token_usage)
.await;
self.send_token_count_event(turn_context).await;
}
pub(crate) async fn record_token_usage_info(
&self,
turn_context: &TurnContext,
token_usage: Option<&TokenUsage>,
) {
if let Some(token_usage) = token_usage {
let token_info = {
let mut state = self.state.lock().await;
state
.update_token_info_from_usage(token_usage, turn_context.model_context_window());
if matches!(
turn_context.config.model_auto_compact_token_limit_scope,
AutoCompactTokenLimitScope::BodyAfterPrefix
) {
state.ensure_auto_compact_window_server_prefill_from_usage(token_usage);
}
state.token_info()
};
if let Some(token_info) = token_info.as_ref() {
for contributor in self.services.extensions.token_usage_contributors() {
contributor
.on_token_usage(
&self.services.session_extension_data,
&self.services.thread_extension_data,
turn_context.extension_data.as_ref(),
token_info,
)
.await;
}
}
}
}
pub(crate) async fn recompute_token_usage(&self, turn_context: &TurnContext) {
let history = self.clone_history().await;
let base_instructions = self.get_base_instructions().await;
let Some(estimated_total_tokens) =
history.estimate_token_count_with_base_instructions(&base_instructions)
else {
return;
};
{
let mut state = self.state.lock().await;
let mut info = state.token_info().unwrap_or(TokenUsageInfo {
total_token_usage: TokenUsage::default(),
last_token_usage: TokenUsage::default(),
model_context_window: None,
});
info.last_token_usage = TokenUsage {
input_tokens: 0,
cached_input_tokens: 0,
output_tokens: 0,
reasoning_output_tokens: 0,
total_tokens: estimated_total_tokens.max(0),
};
if let Some(model_context_window) = turn_context.model_context_window() {
info.model_context_window = Some(model_context_window);
}
state.set_token_info(Some(info));
}
self.set_auto_compact_window_estimated_prefill_for_scope(
turn_context,
estimated_total_tokens,
)
.await;
self.send_token_count_event(turn_context).await;
}
pub(crate) async fn update_rate_limits(
&self,
turn_context: &TurnContext,
new_rate_limits: RateLimitSnapshot,
) {
self.record_rate_limits_info(new_rate_limits).await;
self.send_token_count_event(turn_context).await;
}
pub(crate) async fn record_rate_limits_info(&self, new_rate_limits: RateLimitSnapshot) {
{
let mut state = self.state.lock().await;
state.set_rate_limits(new_rate_limits);
}
}
pub(crate) async fn mcp_dependency_prompted(&self) -> HashSet<String> {
let state = self.state.lock().await;
state.mcp_dependency_prompted()
}
pub(crate) async fn record_mcp_dependency_prompted<I>(&self, names: I)
where
I: IntoIterator<Item = String>,
{
let mut state = self.state.lock().await;
state.record_mcp_dependency_prompted(names);
}
pub(crate) async fn set_server_reasoning_included(&self, included: bool) {
let mut state = self.state.lock().await;
state.set_server_reasoning_included(included);
}
pub(crate) async fn send_token_count_event(&self, turn_context: &TurnContext) {
let (info, rate_limits) = {
let state = self.state.lock().await;
state.token_info_and_rate_limits()
};
let event = EventMsg::TokenCount(TokenCountEvent { info, rate_limits });
self.send_event(turn_context, event).await;
}
pub(crate) async fn set_total_tokens_full(&self, turn_context: &TurnContext) {
if let Some(context_window) = turn_context.model_context_window() {
let mut state = self.state.lock().await;
state.set_token_usage_full(context_window);
}
self.send_token_count_event(turn_context).await;
}
pub(crate) async fn record_response_item_and_emit_turn_item(
&self,
turn_context: &TurnContext,
response_item: ResponseItem,
) {
// Add to conversation history and persist response item to rollout.
self.record_conversation_items(turn_context, std::slice::from_ref(&response_item))
.await;
// Derive a turn item and emit lifecycle events if applicable.
if let Some(item) = parse_turn_item(&response_item) {
self.emit_turn_item_started(turn_context, &item).await;
self.emit_turn_item_completed(turn_context, item).await;
}
}
pub(crate) async fn record_user_prompt_and_emit_turn_item(
&self,
turn_context: &TurnContext,
input: &[UserInput],
client_id: Option<String>,
) {
// Persist the user message to history, but emit the turn item from `UserInput` so
// UI-only `text_elements` are preserved. `ResponseItem::Message` does not carry
// those spans, and `record_response_item_and_emit_turn_item` would drop them.
let response_item = self.response_item_from_user_input(turn_context, input.to_vec());
self.record_conversation_items(turn_context, std::slice::from_ref(&response_item))
.await;
let mut user_message_item = UserMessageItem::new(input);
user_message_item.client_id = client_id;
let turn_item = TurnItem::UserMessage(user_message_item);
self.emit_turn_item_started(turn_context, &turn_item).await;
self.emit_turn_item_completed(turn_context, turn_item).await;
self.ensure_rollout_materialized().await;
}
pub(crate) async fn notify_stream_error(
&self,
turn_context: &TurnContext,
message: impl Into<String>,
codex_error: CodexErr,
) {
let additional_details = codex_error.to_string();
let codex_error_info = CodexErrorInfo::ResponseStreamDisconnected {
http_status_code: codex_error.http_status_code_value(),
};
let event = EventMsg::StreamError(StreamErrorEvent {
message: message.into(),
codex_error_info: Some(codex_error_info),
additional_details: Some(additional_details),
});
self.send_event(turn_context, event).await;
}
/// Inject additional user input into the currently active turn.
///
/// Returns the active turn id when accepted.
#[expect(
clippy::await_holding_invalid_type,
reason = "active turn checks and turn state updates must remain atomic"
)]
pub async fn steer_input(
&self,
input: Vec<UserInput>,
additional_context: BTreeMap<String, AdditionalContextEntry>,
expected_turn_id: Option<&str>,
client_user_message_id: Option<String>,
responsesapi_client_metadata: Option<HashMap<String, String>>,
) -> Result<String, SteerInputError> {
let mut active = self.active_turn.lock().await;
let Some(active_turn) = active.as_mut() else {
return Err(SteerInputError::NoActiveTurn(input));
};
let Some(active_task) = active_turn.task.as_ref() else {
return Err(SteerInputError::NoActiveTurn(input));
};
let active_turn_id = &active_task.turn_context.sub_id;
if let Some(expected_turn_id) = expected_turn_id
&& expected_turn_id != active_turn_id
{
return Err(SteerInputError::ExpectedTurnMismatch {
expected: expected_turn_id.to_string(),
actual: active_turn_id.clone(),
});
}
match active_task.kind {
crate::state::TaskKind::Regular => {}
crate::state::TaskKind::Review => {
return Err(SteerInputError::ActiveTurnNotSteerable {
turn_kind: NonSteerableTurnKind::Review,
});
}
crate::state::TaskKind::Compact => {
return Err(SteerInputError::ActiveTurnNotSteerable {
turn_kind: NonSteerableTurnKind::Compact,
});
}
}
if input.is_empty() {
return Err(SteerInputError::EmptyInput);
}
let additional_context_input = {
let mut state = self.state.lock().await;
state.additional_context.merge(additional_context)
};
if let Some(responsesapi_client_metadata) = responsesapi_client_metadata {
active_task
.turn_context
.turn_metadata_state
.set_responsesapi_client_metadata(responsesapi_client_metadata);
}
let mut pending_input = additional_context_input
.into_iter()
.map(ResponseItem::from)
.map(TurnInput::ResponseItem)
.collect::<Vec<_>>();
pending_input.push(TurnInput::UserInput {
content: input,
client_id: client_user_message_id,
});
self.input_queue
.extend_pending_input_and_accept_mailbox_delivery_for_turn_state(
active_turn.turn_state.as_ref(),
pending_input,
)
.await;
Ok(active_turn_id.clone())
}
pub(crate) async fn record_memory_citation_for_turn(&self, sub_id: &str) {
let turn_state = self
.input_queue
.turn_state_for_sub_id(&self.active_turn, sub_id)
.await;
let Some(turn_state) = turn_state else {
return;
};
turn_state.lock().await.has_memory_citation = true;
}
pub async fn interrupt_task(self: &Arc<Self>) {
info!("interrupt received: abort current task, if any");
let had_active_turn = self.active_turn.lock().await.is_some();
self.abort_all_tasks(TurnAbortReason::Interrupted).await;
if !had_active_turn {
self.cancel_mcp_startup().await;
}
}
pub(crate) fn hooks(&self) -> Arc<Hooks> {
self.services.hooks.load_full()
}
pub(crate) fn user_shell(&self) -> Arc<shell::Shell> {
Arc::clone(&self.services.user_shell)
}
pub(crate) async fn current_rollout_path(&self) -> anyhow::Result<Option<PathBuf>> {
let Some(live_thread) = self.live_thread() else {
return Ok(None);
};
live_thread.local_rollout_path().await.map_err(Into::into)
}
pub(crate) async fn hook_transcript_path(&self) -> Option<PathBuf> {
self.ensure_rollout_materialized().await;
match self.current_rollout_path().await {
Ok(path) => path,
Err(err) => {
warn!("{err}");
None
}
}
}
pub(crate) async fn take_pending_session_start_source(
&self,
) -> Option<codex_hooks::SessionStartSource> {
let mut state = self.state.lock().await;
state.take_pending_session_start_source()
}
fn show_raw_agent_reasoning(&self) -> bool {
self.services.show_raw_agent_reasoning
}
}
pub(crate) fn emit_subagent_session_started(
analytics_events_client: &AnalyticsEventsClient,
client_metadata: AppServerClientMetadata,
session_id: SessionId,
thread_id: ThreadId,
parent_thread_id: Option<ThreadId>,
thread_config: ThreadConfigSnapshot,
subagent_source: SubAgentSource,
) {
let AppServerClientMetadata {
client_name,
client_version,
} = client_metadata;
let (Some(client_name), Some(client_version)) = (client_name, client_version) else {
tracing::warn!("skipping subagent thread analytics: missing inherited client metadata");
return;
};
let created_at = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap_or_default()
.as_secs();
analytics_events_client.track_subagent_thread_started(SubAgentThreadStartedInput {
session_id: session_id.to_string(),
thread_id: thread_id.to_string(),
parent_thread_id: parent_thread_id.map(|thread_id| thread_id.to_string()),
forked_from_thread_id: thread_config
.forked_from_thread_id
.map(|thread_id| thread_id.to_string()),
product_client_id: client_name.clone(),
client_name,
client_version,
model: thread_config.model,
ephemeral: thread_config.ephemeral,
subagent_source,
created_at,
});
}
/// Builds the hook engine for one config snapshot, including any enabled plugin hooks.
async fn build_hooks_for_config(
config: &Config,
plugins_manager: &PluginsManager,
user_shell: &crate::shell::Shell,
) -> Hooks {
let mut hook_shell_argv = user_shell.derive_exec_args("", /*use_login_shell*/ false);
let hook_shell_program = hook_shell_argv.remove(0);
let _ = hook_shell_argv.pop();
let plugins_input = config.plugins_config_input();
let plugin_outcome = plugins_manager.plugins_for_config(&plugins_input).await;
let plugin_hook_sources = plugin_outcome.effective_plugin_hook_sources();
let plugin_hook_load_warnings = plugin_outcome.effective_plugin_hook_warnings();
Hooks::new(HooksConfig {
legacy_notify_argv: config.notify.clone(),
feature_enabled: config.features.enabled(Feature::CodexHooks),
bypass_hook_trust: config.bypass_hook_trust,
config_layer_stack: Some(config.config_layer_stack.clone()),
plugin_hook_sources,
plugin_hook_load_warnings,
shell_program: Some(hook_shell_program),
shell_args: hook_shell_argv,
})
}
#[cfg(test)]
pub(crate) mod tests;