Memory-lancedb: configurable capture limit (#16624) (thanks @ciberponk)

extensions/memory-lancedb/index.test.ts

@@ -61,7 +61,7 @@ describe("memory plugin e2e", () => {
     expect(config).toBeDefined();
     expect(config?.embedding?.apiKey).toBe(OPENAI_API_KEY);
     expect(config?.dbPath).toBe(dbPath);
-    expect(config?.captureMaxChars).toBe(1500);
+    expect(config?.captureMaxChars).toBe(500);
   });
 
   test("config schema resolves env vars", async () => {
@@ -105,6 +105,21 @@ describe("memory plugin e2e", () => {
     }).toThrow("captureMaxChars must be between 100 and 10000");
   });
 
+  test("config schema accepts captureMaxChars override", async () => {
+    const { default: memoryPlugin } = await import("./index.js");
+
+    const config = memoryPlugin.configSchema?.parse?.({
+      embedding: {
+        apiKey: OPENAI_API_KEY,
+        model: "text-embedding-3-small",
+      },
+      dbPath,
+      captureMaxChars: 1800,
+    });
+
+    expect(config?.captureMaxChars).toBe(1800);
+  });
+
   test("shouldCapture applies real capture rules", async () => {
     const { shouldCapture } = await import("./index.js");
 
@@ -117,10 +132,14 @@ describe("memory plugin e2e", () => {
     expect(shouldCapture("<relevant-memories>injected</relevant-memories>")).toBe(false);
     expect(shouldCapture("<system>status</system>")).toBe(false);
     expect(shouldCapture("Here is a short **summary**\n- bullet")).toBe(false);
-    const longButAllowed = `I always prefer this style. ${"x".repeat(1200)}`;
-    const tooLong = `I always prefer this style. ${"x".repeat(1600)}`;
-    expect(shouldCapture(longButAllowed, { maxChars: 1500 })).toBe(true);
-    expect(shouldCapture(tooLong, { maxChars: 1500 })).toBe(false);
+    const defaultAllowed = `I always prefer this style. ${"x".repeat(400)}`;
+    const defaultTooLong = `I always prefer this style. ${"x".repeat(600)}`;
+    expect(shouldCapture(defaultAllowed)).toBe(true);
+    expect(shouldCapture(defaultTooLong)).toBe(false);
+    const customAllowed = `I always prefer this style. ${"x".repeat(1200)}`;
+    const customTooLong = `I always prefer this style. ${"x".repeat(1600)}`;
+    expect(shouldCapture(customAllowed, { maxChars: 1500 })).toBe(true);
+    expect(shouldCapture(customTooLong, { maxChars: 1500 })).toBe(false);
   });
 
   test("detectCategory classifies using production logic", async () => {