feat: memories config (#11731)

codex-rs/core/src/config/mod.rs

@@ -7,6 +7,8 @@ use crate::config::types::History;
 use crate::config::types::McpServerConfig;
 use crate::config::types::McpServerDisabledReason;
 use crate::config::types::McpServerTransportConfig;
+use crate::config::types::MemoriesConfig;
+use crate::config::types::MemoriesToml;
 use crate::config::types::Notice;
 use crate::config::types::NotificationMethod;
 use crate::config::types::Notifications;
@@ -289,6 +291,9 @@ pub struct Config {
     /// Maximum number of agent threads that can be open concurrently.
     pub agent_max_threads: Option<usize>,
 
+    /// Memories subsystem settings.
+    pub memories: MemoriesConfig,
+
     /// Directory containing all Codex state (defaults to `~/.codex` but can be
     /// overridden by the `CODEX_HOME` environment variable).
     pub codex_home: PathBuf,
@@ -1006,6 +1011,9 @@ pub struct ConfigToml {
     /// Agent-related settings (thread limits, etc.).
     pub agents: Option<AgentsToml>,
 
+    /// Memories subsystem settings.
+    pub memories: Option<MemoriesToml>,
+
     /// User-level skill config entries keyed by SKILL.md path.
     pub skills: Option<SkillsConfig>,
 
@@ -1771,6 +1779,7 @@ impl Config {
                 .collect(),
             tool_output_token_limit: cfg.tool_output_token_limit,
             agent_max_threads,
+            memories: cfg.memories.unwrap_or_default().into(),
             codex_home,
             log_dir,
             config_layer_stack,
@@ -1985,6 +1994,8 @@ mod tests {
     use crate::config::types::FeedbackConfigToml;
     use crate::config::types::HistoryPersistence;
     use crate::config::types::McpServerTransportConfig;
+    use crate::config::types::MemoriesConfig;
+    use crate::config::types::MemoriesToml;
     use crate::config::types::NotificationMethod;
     use crate::config::types::Notifications;
     use crate::config_loader::RequirementSource;
@@ -2068,6 +2079,47 @@ persistence = "none"
             }),
             history_no_persistence_cfg.history
         );
+
+        let memories = r#"
+[memories]
+max_raw_memories_for_global = 512
+max_rollout_age_days = 42
+max_rollouts_per_startup = 9
+min_rollout_idle_hours = 24
+phase_1_model = "gpt-5-mini"
+phase_2_model = "gpt-5"
+"#;
+        let memories_cfg =
+            toml::from_str::<ConfigToml>(memories).expect("TOML deserialization should succeed");
+        assert_eq!(
+            Some(MemoriesToml {
+                max_raw_memories_for_global: Some(512),
+                max_rollout_age_days: Some(42),
+                max_rollouts_per_startup: Some(9),
+                min_rollout_idle_hours: Some(24),
+                phase_1_model: Some("gpt-5-mini".to_string()),
+                phase_2_model: Some("gpt-5".to_string()),
+            }),
+            memories_cfg.memories
+        );
+
+        let config = Config::load_from_base_config_with_overrides(
+            memories_cfg,
+            ConfigOverrides::default(),
+            tempdir().expect("tempdir").path().to_path_buf(),
+        )
+        .expect("load config from memories settings");
+        assert_eq!(
+            config.memories,
+            MemoriesConfig {
+                max_raw_memories_for_global: 512,
+                max_rollout_age_days: 42,
+                max_rollouts_per_startup: 9,
+                min_rollout_idle_hours: 24,
+                phase_1_model: Some("gpt-5-mini".to_string()),
+                phase_2_model: Some("gpt-5".to_string()),
+            }
+        );
     }
 
     #[test]
@@ -4047,6 +4099,7 @@ model_verbosity = "high"
                 project_doc_fallback_filenames: Vec::new(),
                 tool_output_token_limit: None,
                 agent_max_threads: DEFAULT_AGENT_MAX_THREADS,
+                memories: MemoriesConfig::default(),
                 codex_home: fixture.codex_home(),
                 log_dir: fixture.codex_home().join("log"),
                 config_layer_stack: Default::default(),
@@ -4156,6 +4209,7 @@ model_verbosity = "high"
             project_doc_fallback_filenames: Vec::new(),
             tool_output_token_limit: None,
             agent_max_threads: DEFAULT_AGENT_MAX_THREADS,
+            memories: MemoriesConfig::default(),
             codex_home: fixture.codex_home(),
             log_dir: fixture.codex_home().join("log"),
             config_layer_stack: Default::default(),
@@ -4263,6 +4317,7 @@ model_verbosity = "high"
             project_doc_fallback_filenames: Vec::new(),
             tool_output_token_limit: None,
             agent_max_threads: DEFAULT_AGENT_MAX_THREADS,
+            memories: MemoriesConfig::default(),
             codex_home: fixture.codex_home(),
             log_dir: fixture.codex_home().join("log"),
             config_layer_stack: Default::default(),
@@ -4356,6 +4411,7 @@ model_verbosity = "high"
             project_doc_fallback_filenames: Vec::new(),
             tool_output_token_limit: None,
             agent_max_threads: DEFAULT_AGENT_MAX_THREADS,
+            memories: MemoriesConfig::default(),
             codex_home: fixture.codex_home(),
             log_dir: fixture.codex_home().join("log"),
             config_layer_stack: Default::default(),