update: fmt + memoryに用いる言語の構成

crates/manifest/src/config.rs

@@ -258,6 +258,7 @@ impl MemoryConfig {
             workspace_root: upper.workspace_root.or(self.workspace_root),
             query_result_limit: upper.query_result_limit.or(self.query_result_limit),
             query_excerpt_lines: upper.query_excerpt_lines.or(self.query_excerpt_lines),
+            language: upper.language.or(self.language),
             extract_model: upper.extract_model.or(self.extract_model),
             extract_threshold: upper.extract_threshold.or(self.extract_threshold),
             extract_worker_max_input_tokens: upper

crates/manifest/src/defaults.rs

@@ -62,3 +62,7 @@ pub const MEMORY_EXTRACT_WORKER_MAX_INPUT_TOKENS: u64 = 30_000;
 /// Optional maximum extract-worker tool-loop depth. `None` means unlimited.
 /// See [`crate::MemoryConfig::extract_worker_max_turns`].
 pub const MEMORY_EXTRACT_WORKER_MAX_TURNS: Option<u32> = Some(8);
+
+/// Default language used by memory extraction / consolidation workers for
+/// durable memory and knowledge text. See [`crate::MemoryConfig::language`].
+pub const MEMORY_LANGUAGE: &str = "English";

crates/manifest/src/lib.rs

@@ -96,6 +96,12 @@ pub struct MemoryConfig {
     /// Ignored when the request omits `query`. `None` ⇒ tool default (3).
     #[serde(default)]
     pub query_excerpt_lines: Option<usize>,
+    /// Language used by memory extraction / consolidation workers for durable
+    /// memory and knowledge text. Free-form so workspaces can use names like
+    /// `English`, `Japanese`, or locale tags. `None` ⇒
+    /// [`defaults::MEMORY_LANGUAGE`].
+    #[serde(default)]
+    pub language: Option<String>,
     /// Optional model for the extract worker. When `None`,
     /// the main pod model is cloned via `clone_boxed()`. Lightweight
     /// reasoning-capable models (Haiku / 4o-mini / Flash class) are
@@ -656,6 +662,14 @@ model_id = "claude-sonnet-4-20250514"
         );
     }
 
+    #[test]
+    fn memory_section_with_language() {
+        let toml = format!("{MINIMAL_REQUIRED}\n[memory]\nlanguage = \"Japanese\"\n");
+        let manifest = PodManifest::from_toml(&toml).unwrap();
+        let mem = manifest.memory.unwrap();
+        assert_eq!(mem.language.as_deref(), Some("Japanese"));
+    }
+
     #[test]
     fn reject_unknown_scheme() {
         let toml =