diff --git a/package-lock.json b/package-lock.json
index 1b06ab2..dc4129d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,11 +11,18 @@
         "@modelcontextprotocol/sdk": "^1.26.0",
         "@tauri-apps/api": "^2.10.1",
         "@tauri-apps/cli": "^2.10.0",
+        "axios": "^1.13.5",
         "better-sqlite3": "^12.6.2",
+        "eventsource": "^4.1.0",
+        "react": "^18.2.0",
+        "react-dom": "^18.2.0",
         "sqlite-vec-windows-x64": "^0.1.7-alpha.2"
       },
       "devDependencies": {
-        "prettier": "^3.8.1"
+        "@types/react": "^18.2.21",
+        "@types/react-dom": "^18.2.7",
+        "prettier": "^3.8.1",
+        "typescript": "^5.2.2"
       }
     },
     "node_modules/@hono/node-server": {
@@ -83,6 +90,17 @@
         "url": "https://github.com/sponsors/epoberezkin"
       }
     },
+    "node_modules/@modelcontextprotocol/sdk/node_modules/eventsource": {
+      "version": "3.0.7",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-3.0.7.tgz",
+      "integrity": "sha512-CRT1WTyuQoD771GW56XEZFQ/ZoSfWid1alKGDYMmkt2yl8UXrVR4pspqWNEcqKvVIzg6PAltWjxcSSPrboA4iA==",
+      "dependencies": {
+        "eventsource-parser": "^3.0.1"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
     "node_modules/@modelcontextprotocol/sdk/node_modules/json-schema-traverse": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
@@ -290,6 +308,31 @@
         "node": ">= 10"
       }
     },
+    "node_modules/@types/prop-types": {
+      "version": "15.7.15",
+      "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.15.tgz",
+      "integrity": "sha512-F6bEyamV9jKGAFBEmlQnesRPGOQqS2+Uwi0Em15xenOxHaf2hv6L8YCVn3rPdPJOiJfPiCnLIRyvwVaqMY3MIw==",
+      "dev": true
+    },
+    "node_modules/@types/react": {
+      "version": "18.3.28",
+      "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.28.tgz",
+      "integrity": "sha512-z9VXpC7MWrhfWipitjNdgCauoMLRdIILQsAEV+ZesIzBq/oUlxk0m3ApZuMFCXdnS4U7KrI+l3WRUEGQ8K1QKw==",
+      "dev": true,
+      "dependencies": {
+        "@types/prop-types": "*",
+        "csstype": "^3.2.2"
+      }
+    },
+    "node_modules/@types/react-dom": {
+      "version": "18.3.7",
+      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-18.3.7.tgz",
+      "integrity": "sha512-MEe3UeoENYVFXzoXEWsvcpg6ZvlrFNlOQ7EOsvhI3CfAXwzPfO8Qwuxd40nepsYKqyyVQnTdEfv68q91yLcKrQ==",
+      "dev": true,
+      "peerDependencies": {
+        "@types/react": "^18.0.0"
+      }
+    },
     "node_modules/accepts": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
@@ -338,6 +381,21 @@
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
       "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug=="
     },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
+    },
+    "node_modules/axios": {
+      "version": "1.13.5",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.13.5.tgz",
+      "integrity": "sha512-cz4ur7Vb0xS4/KUN0tPWe44eqxrIu31me+fbang3ijiNscE129POzipJJA6zniq2C/Z6sJCjMimjS8Lc/GAs8Q==",
+      "dependencies": {
+        "follow-redirects": "^1.15.11",
+        "form-data": "^4.0.5",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
     "node_modules/base64-js": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
@@ -474,6 +532,17 @@
       "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
       "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg=="
     },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/content-disposition": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.1.tgz",
@@ -539,6 +608,12 @@
         "node": ">= 8"
       }
     },
+    "node_modules/csstype": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
+      "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
+      "dev": true
+    },
     "node_modules/debug": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -577,6 +652,14 @@
         "node": ">=4.0.0"
       }
     },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -654,6 +737,20 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/es-set-tostringtag": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
+      "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.6",
+        "has-tostringtag": "^1.0.2",
+        "hasown": "^2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -668,14 +765,14 @@
       }
     },
     "node_modules/eventsource": {
-      "version": "3.0.7",
-      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-3.0.7.tgz",
-      "integrity": "sha512-CRT1WTyuQoD771GW56XEZFQ/ZoSfWid1alKGDYMmkt2yl8UXrVR4pspqWNEcqKvVIzg6PAltWjxcSSPrboA4iA==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-4.1.0.tgz",
+      "integrity": "sha512-2GuF51iuHX6A9xdTccMTsNb7VO0lHZihApxhvQzJB5A03DvHDd2FQepodbMaztPBmBcE/ox7o2gqaxGhYB9LhQ==",
       "dependencies": {
         "eventsource-parser": "^3.0.1"
       },
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20.0.0"
       }
     },
     "node_modules/eventsource-parser": {
@@ -798,6 +895,59 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/follow-redirects": {
+      "version": "1.15.11",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
+      "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/form-data": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.5.tgz",
+      "integrity": "sha512-8RipRLol37bNs2bhoV67fiTEvdTrbMUYcFTiy3+wuuOnUog2QBHCZWXDRijWQfAkhBj2Uf5UnVaiWwA5vdd82w==",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "es-set-tostringtag": "^2.1.0",
+        "hasown": "^2.0.2",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/form-data/node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/form-data/node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -889,6 +1039,20 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/has-tostringtag": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
+      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
+      "dependencies": {
+        "has-symbols": "^1.0.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/hasown": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
@@ -1005,11 +1169,27 @@
         "url": "https://github.com/sponsors/panva"
       }
     },
+    "node_modules/js-tokens": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ=="
+    },
     "node_modules/json-schema-typed": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/json-schema-typed/-/json-schema-typed-8.0.2.tgz",
       "integrity": "sha512-fQhoXdcvc3V28x7C7BMs4P5+kNlgUURe2jmUT1T//oBRMDrqy1QPelJimwZGo7Hg9VPV3EQV5Bnq4hbFy2vetA=="
     },
+    "node_modules/loose-envify": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
+      "integrity": "sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==",
+      "dependencies": {
+        "js-tokens": "^3.0.0 || ^4.0.0"
+      },
+      "bin": {
+        "loose-envify": "cli.js"
+      }
+    },
     "node_modules/math-intrinsics": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
@@ -1247,6 +1427,11 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
+    },
     "node_modules/pump": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.3.tgz",
@@ -1314,6 +1499,29 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react": {
+      "version": "18.3.1",
+      "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
+      "integrity": "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ==",
+      "dependencies": {
+        "loose-envify": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/react-dom": {
+      "version": "18.3.1",
+      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-18.3.1.tgz",
+      "integrity": "sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw==",
+      "dependencies": {
+        "loose-envify": "^1.1.0",
+        "scheduler": "^0.23.2"
+      },
+      "peerDependencies": {
+        "react": "^18.3.1"
+      }
+    },
     "node_modules/readable-stream": {
       "version": "3.6.2",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
@@ -1374,6 +1582,14 @@
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
+    "node_modules/scheduler": {
+      "version": "0.23.2",
+      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
+      "integrity": "sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ==",
+      "dependencies": {
+        "loose-envify": "^1.1.0"
+      }
+    },
     "node_modules/send": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/send/-/send-1.2.1.tgz",
@@ -1637,6 +1853,19 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/typescript": {
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
+      "dev": true,
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
     "node_modules/unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
diff --git a/scripts/test_mcp_client.mjs b/scripts/test_mcp_client.mjs
new file mode 100644
index 0000000..a842897
--- /dev/null
+++ b/scripts/test_mcp_client.mjs
@@ -0,0 +1,81 @@
+import axios from 'axios';
+
+const API_BASE = "http://127.0.0.1:3001";
+
+async function testMcp() {
+    console.log("=== TelosDB MCP Tool Test ===");
+
+    const messageEndpoint = "/messages";
+
+    const postMessage = async (method, params = {}) => {
+        try {
+            const res = await axios.post(`${API_BASE}${messageEndpoint}`, {
+                jsonrpc: "2.0",
+                method: method,
+                params: params,
+                id: Date.now()
+            });
+            return res.data;
+        } catch (e) {
+            console.error(`  Error in ${method}:`, e.response?.data || e.message);
+            throw e;
+        }
+    };
+
+    try {
+        // 1. ツール一覧
+        console.log("\n[1] Listing tools...");
+        const toolsResult = await postMessage("tools/list");
+        console.log("  Success: Found", toolsResult.result?.tools?.length, "tools.");
+
+        // 2. 登録 (スキップ)
+        // console.log("\n[2] Testing add_item_text...");
+        /*
+        const addResult = await postMessage("tools/call", {
+            name: "add_item_text",
+            arguments: {
+                content: "富士山は日本一の山です。",
+                path: "test/mountain.txt"
+            }
+        });
+        const addText = addResult.result?.content?.[0]?.text || "No text in response";
+        console.log("  Response:", addText);
+
+        // IDを抽出 (例: "Successfully added item with ID: 5")
+        const idMatch = addText.match(/ID: (\d+)/);
+        const testId = idMatch ? parseInt(idMatch[1]) : null;
+
+        if (testId) {
+            console.log(`  Identified new Item ID: ${testId}`);
+        } else {
+            console.warn("  Could not identify Item ID. Skipping Update/Delete tests.");
+            console.log("  Raw add result:", JSON.stringify(addResult, null, 2));
+        }
+        */
+
+        // 3. 検索テスト
+        console.log("\n[3] Testing search_text with different queries...");
+
+        const queries = ["宝くじ"];
+
+        for (const q of queries) {
+            console.log(`\n  Query: "${q}"`);
+            const searchResult = await postMessage("tools/call", {
+                name: "search_text",
+                arguments: {
+                    content: q,
+                    limit: 5
+                }
+            });
+            const content = searchResult.result?.content?.[0]?.text;
+            console.log("  Result:\n", content || "  No results");
+        }
+
+    } catch (e) {
+        console.error("\nTest failed.");
+    } finally {
+        console.log("\n=== Test Finished ===");
+    }
+}
+
+testMcp();
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 92a9d79..0d6b3ab 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -151,7 +151,7 @@
 
 [[package]]
 name = "app"
-version = "0.1.0"
+version = "0.2.5"
 dependencies = [
  "anyhow",
  "axum",
@@ -171,6 +171,7 @@
  "tauri-build",
  "tauri-plugin-log",
  "tauri-plugin-shell",
+ "tempfile",
  "tokio",
  "tokio-stream",
  "tower-http",
diff --git a/src-tauri/src/bin/rebuild_vecs.rs b/src-tauri/src/bin/rebuild_vecs.rs
new file mode 100644
index 0000000..3cbc998
--- /dev/null
+++ b/src-tauri/src/bin/rebuild_vecs.rs
@@ -0,0 +1,82 @@
+use std::env;
+use std::path::PathBuf;
+
+#[tokio::main]
+async fn main() {
+    // CWD is expected to be src-tauri when run via our cargo command below.
+    let cwd = env::current_dir().expect("failed to get cwd");
+
+    let args: Vec<String> = env::args().collect();
+    let db_path = args
+        .get(1)
+        .map(PathBuf::from)
+        .unwrap_or_else(|| cwd.join("telos.db"));
+    let vec0_path = args
+        .get(2)
+        .map(PathBuf::from)
+        .unwrap_or_else(|| cwd.join("target").join("debug").join("vec0.dll"));
+
+    println!("Using db: {:?}", db_path);
+    println!("Using vec0 extension: {:?}", vec0_path);
+
+    let db_path_str = db_path.to_string_lossy().to_string();
+    let vec0_path_str = vec0_path.to_string_lossy().to_string();
+
+    let dimension = 640; // Default for Gemma-3, or should be dynamic
+    // Ensure SQLite schema / extension is initialized (creates items and vec_items if missing)
+    match app_lib::db::initialize_database(&db_path, &vec0_path, dimension).await {
+        Ok(_) => println!("initialize_database succeeded or schema already present."),
+        Err(e) => {
+            eprintln!("initialize_database failed: {:?}", e);
+            std::process::exit(1);
+        }
+    }
+
+    // Initialize SQLx pool
+    let pool = match app_lib::db::init_pool(&db_path_str, vec0_path_str.clone()).await {
+        Ok(p) => p,
+        Err(e) => {
+            eprintln!("Failed to init pool: {:?}", e);
+            std::process::exit(1);
+        }
+    };
+
+    // embed_fn: posts to local llama-server embeddings endpoint
+    let client = reqwest::Client::new();
+    let embed_fn = move |txt: String| -> std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Vec<f32>, String>> + Send + 'static>,
+    > {
+        let client = client.clone();
+        let s = txt.to_string();
+        Box::pin(async move {
+            let payload = serde_json::json!({"input": [s], "model": "default"});
+            let resp = client
+                .post("http://127.0.0.1:8080/v1/embeddings")
+                .json(&payload)
+                .send()
+                .await
+                .map_err(|e| e.to_string())?;
+            let body = resp.text().await.map_err(|e| e.to_string())?;
+            let json: serde_json::Value = serde_json::from_str(&body).map_err(|e| e.to_string())?;
+            let arr = json["data"][0]["embedding"]
+                .as_array()
+                .ok_or_else(|| format!("no embedding in response: {}", body))?;
+            let v: Vec<f32> = arr
+                .iter()
+                .map(|v| v.as_f64().unwrap_or(0.0) as f32)
+                .collect();
+            Ok(v)
+        })
+    };
+
+    println!("Starting rebuild_vector_data...");
+    match app_lib::db::rebuild_vector_data(&pool, dimension, embed_fn).await {
+        Ok(_) => {
+            println!("rebuild_vector_data completed successfully.");
+        }
+        Err(e) => {
+            eprintln!("rebuild_vector_data failed: {}", e);
+            std::process::exit(1);
+        }
+    }
+}