diff --git a/.github/logos/logo-mark.svg b/.github/logos/logo-mark.svg
new file mode 100644
index 00000000..12e38cc8
--- /dev/null
+++ b/.github/logos/logo-mark.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="160" height="160" viewBox="0 0 160 160">
+  <path d="M80 34 L135 104 L121 104 L80 52 L39 104 L25 104 Z" fill="#fb7185"/>
+</svg>
diff --git a/README.md b/README.md
index 1c5a6b2b..e4f87a44 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-<h1>skilld</h1>
+<h1><a href="https://skilld.dev"><img src=".github/logos/logo-mark.svg" alt="" width="28" height="28" valign="middle"></a> skilld</h1>
 
 [![npm version](https://img.shields.io/npm/v/skilld?color=yellow)](https://npmjs.com/package/skilld)
 [![npm downloads](https://img.shields.io/npm/dm/skilld?color=yellow)](https://npm.chart.dev/skilld)
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5aae414d..bd5662cb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7,8 +7,8 @@ settings:
 catalogs:
   default:
     '@mariozechner/pi-ai':
-      specifier: ^0.63.1
-      version: 0.63.1
+      specifier: ^0.64.0
+      version: 0.64.0
     '@mdream/crawl':
       specifier: ^1.0.3
       version: 1.0.3
@@ -89,8 +89,8 @@ catalogs:
       specifier: ^7.3.0
       version: 7.3.0
     sqlite-vec:
-      specifier: ^0.1.7
-      version: 0.1.7
+      specifier: ^0.1.8
+      version: 0.1.8
     tinyglobby:
       specifier: ^0.2.15
       version: 0.2.15
@@ -134,7 +134,7 @@ importers:
         version: 3.8.1
       '@mariozechner/pi-ai':
         specifier: 'catalog:'
-        version: 0.63.1(ws@8.19.0)(zod@4.3.6)
+        version: 0.64.0(ws@8.19.0)(zod@4.3.6)
       '@mdream/crawl':
         specifier: 'catalog:'
         version: 1.0.3(crawlee@3.16.0(@types/node@25.5.0))(magicast@0.5.2)
@@ -185,13 +185,13 @@ importers:
         version: 2.0.3
       retriv:
         specifier: 'catalog:'
-        version: 0.13.0(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.7)(typescript@6.0.2)
+        version: 0.13.0(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.8)(typescript@6.0.2)
       semver:
         specifier: 'catalog:'
         version: 7.7.4
       sqlite-vec:
         specifier: catalog:deps
-        version: 0.1.7
+        version: 0.1.8
       std-env:
         specifier: 'catalog:'
         version: 4.0.0
@@ -203,7 +203,7 @@ importers:
         version: 6.0.2
       unagent:
         specifier: 'catalog:'
-        version: 0.0.8(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.7)
+        version: 0.0.8(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.8)
       unist-util-visit:
         specifier: catalog:deps
         version: 5.1.0
@@ -1334,8 +1334,8 @@ packages:
     resolution: {integrity: sha512-9I2Zn6+NJLfaGoz9jN3lpwDgAYvfGeNYdbAIjJOqzs4Tpc+VU3Jqq4IofSUBKajiDS8k9fZIg18/z13mpk1bsA==}
     engines: {node: '>=8'}
 
-  '@mariozechner/pi-ai@0.63.1':
-    resolution: {integrity: sha512-wjgwY+yfrFO6a9QdAfjWpH7iSrDean6GsKDDMohNcLCy6PreMxHOZvNM0NwJARL1tZoZovr7ikAQfLGFZbnjsw==}
+  '@mariozechner/pi-ai@0.64.0':
+    resolution: {integrity: sha512-Z/Jnf+JSVDPLRcxJsa8XhYTJKIqKekNueaCpBLGQHgizL1F9RQ1Rur3rIfZpfXkt2cLu/AIPtOs223ueuoWaWg==}
     engines: {node: '>=20.0.0'}
     hasBin: true
 
@@ -4738,33 +4738,33 @@ packages:
   split@0.3.3:
     resolution: {integrity: sha512-wD2AeVmxXRBoX44wAycgjVpMhvbwdI2aZjCkvfNcH1YqHQvJVa1duWc73OyVGJUc05fhFaTZeQ/PYsrmyH0JVA==}
 
-  sqlite-vec-darwin-arm64@0.1.7:
-    resolution: {integrity: sha512-dQ7u4GKPdOPi3IfZ44K7HHdYup2JssM6fuKR9zgqRzW137uFOQmRhbYChNu+ZfW+yhJutsPgfNRFsuWKmy627w==}
+  sqlite-vec-darwin-arm64@0.1.8:
+    resolution: {integrity: sha512-EoHyjPgX8uhWWcYSWbLwJHU6j8AQvwYbwDXFaT1ocdNtJy5qAGtX6LLsBR3vuWOyosMnULF6+DExjldku23h7A==}
     cpu: [arm64]
     os: [darwin]
 
-  sqlite-vec-darwin-x64@0.1.7:
-    resolution: {integrity: sha512-MDoczft1BriQcGMEz+CqeSCkB0OsAf12ytZOapS6MaB7zgNzLLSLH6Sxe3yzcPWUyDuCWgK7WzyRIo8u1vAIVA==}
+  sqlite-vec-darwin-x64@0.1.8:
+    resolution: {integrity: sha512-IafNV502w90y1BvWQXaRZ2AyyqNINmZ+7LEvkfL45Gf7kC182EFKxn9vbCy6UrY6QYXN/XQo7aICpTO7MIZBqw==}
     cpu: [x64]
     os: [darwin]
 
-  sqlite-vec-linux-arm64@0.1.7:
-    resolution: {integrity: sha512-V429sYT/gwr9PgtT8rbjQd6ls7CFchFpiS45TKSf7rU7wxt9MBmCVorUcheD4kEZb4VeZ6PnFXXCqPMeaHkaUw==}
+  sqlite-vec-linux-arm64@0.1.8:
+    resolution: {integrity: sha512-R/zogzxQ4LEAgju3knhZuWs8MKdIqN6Bq+ORhLYz5S4eQ98F+rYqilHQ8vsE3Ouy347yxNB2HyldDMcwzgfTyQ==}
     cpu: [arm64]
     os: [linux]
 
-  sqlite-vec-linux-x64@0.1.7:
-    resolution: {integrity: sha512-wZL+lXeW7y63DLv6FYU6Q4nv2lP5F94cWt7bJCWNiHmZ6NdKIgz/p0QlyuJA/51b8TyoDvsTdusLVlZz9cIh5A==}
+  sqlite-vec-linux-x64@0.1.8:
+    resolution: {integrity: sha512-DBIf2d2mvDb1M//snAKljpIsNQNqXX2AXWNBua0YCj40F/ygFJJ8j3k1pbcJfaEoaP21B+VquH0Gc6RIwZvXig==}
     cpu: [x64]
     os: [linux]
 
-  sqlite-vec-windows-x64@0.1.7:
-    resolution: {integrity: sha512-FEZMjMT03irJxwqMQg+A+4hHCiFslxISOAkQ0eYn2lP7GdpppkgYveaT5Xnw/2V+GLq2MXOJb0nDGFNethHSkg==}
+  sqlite-vec-windows-x64@0.1.8:
+    resolution: {integrity: sha512-+fBb7kzTpSAvoO/06YMDefnM5PpRhnPVqAYiUvLfBnUCRILDq2F9lcjQQIRjhobrb3eoJWzsGHwnqdVfaIUNxQ==}
     cpu: [x64]
     os: [win32]
 
-  sqlite-vec@0.1.7:
-    resolution: {integrity: sha512-1Sge9uRc3B6wDKR4J6sGFi/E2ai9SAU5FenDki3OmhdP/a49PO2Juy1U5yQnx2bZP5t+C3BYJTkG+KkDi3q9Xg==}
+  sqlite-vec@0.1.8:
+    resolution: {integrity: sha512-L3xKhQUYQ7kcb3v31KPyPaEigE2upETMSx/5K3vTwm8HRsbci9PKGklXU+mxEYVogojpkenM0TZK5Sz/2FXTQw==}
 
   stackback@0.0.2:
     resolution: {integrity: sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==}
@@ -6659,7 +6659,7 @@ snapshots:
 
   '@lukeed/ms@2.0.2': {}
 
-  '@mariozechner/pi-ai@0.63.1(ws@8.19.0)(zod@4.3.6)':
+  '@mariozechner/pi-ai@0.64.0(ws@8.19.0)(zod@4.3.6)':
     dependencies:
       '@anthropic-ai/sdk': 0.73.0(zod@4.3.6)
       '@aws-sdk/client-bedrock-runtime': 3.1014.0
@@ -10380,11 +10380,11 @@ snapshots:
 
   ret@0.5.0: {}
 
-  retriv@0.13.0(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.7)(typescript@6.0.2):
+  retriv@0.13.0(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.8)(typescript@6.0.2):
     optionalDependencies:
       '@huggingface/transformers': 3.8.1
       ai: 6.0.68(zod@4.3.6)
-      sqlite-vec: 0.1.7
+      sqlite-vec: 0.1.8
       typescript: 6.0.2
 
   retry@0.12.0:
@@ -10661,28 +10661,28 @@ snapshots:
       through: 2.3.8
     optional: true
 
-  sqlite-vec-darwin-arm64@0.1.7:
+  sqlite-vec-darwin-arm64@0.1.8:
     optional: true
 
-  sqlite-vec-darwin-x64@0.1.7:
+  sqlite-vec-darwin-x64@0.1.8:
     optional: true
 
-  sqlite-vec-linux-arm64@0.1.7:
+  sqlite-vec-linux-arm64@0.1.8:
     optional: true
 
-  sqlite-vec-linux-x64@0.1.7:
+  sqlite-vec-linux-x64@0.1.8:
     optional: true
 
-  sqlite-vec-windows-x64@0.1.7:
+  sqlite-vec-windows-x64@0.1.8:
     optional: true
 
-  sqlite-vec@0.1.7:
+  sqlite-vec@0.1.8:
     optionalDependencies:
-      sqlite-vec-darwin-arm64: 0.1.7
-      sqlite-vec-darwin-x64: 0.1.7
-      sqlite-vec-linux-arm64: 0.1.7
-      sqlite-vec-linux-x64: 0.1.7
-      sqlite-vec-windows-x64: 0.1.7
+      sqlite-vec-darwin-arm64: 0.1.8
+      sqlite-vec-darwin-x64: 0.1.8
+      sqlite-vec-linux-arm64: 0.1.8
+      sqlite-vec-linux-x64: 0.1.8
+      sqlite-vec-windows-x64: 0.1.8
 
   stackback@0.0.2: {}
 
@@ -10928,7 +10928,7 @@ snapshots:
 
   uint8array-extras@1.5.0: {}
 
-  unagent@0.0.8(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.7):
+  unagent@0.0.8(@huggingface/transformers@3.8.1)(ai@6.0.68(zod@4.3.6))(sqlite-vec@0.1.8):
     dependencies:
       croner: 9.1.0
       hookable: 6.0.1
@@ -10938,7 +10938,7 @@ snapshots:
     optionalDependencies:
       '@huggingface/transformers': 3.8.1
       ai: 6.0.68(zod@4.3.6)
-      sqlite-vec: 0.1.7
+      sqlite-vec: 0.1.8
 
   unconfig-core@7.5.0:
     dependencies:
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 777f96e8..87c6223c 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -7,7 +7,7 @@ packages:
 overrides:
   global-agent: ^4.1.3
 catalog:
-  '@mariozechner/pi-ai': ^0.63.1
+  '@mariozechner/pi-ai': ^0.64.0
   '@mdream/crawl': ^1.0.3
   '@types/semver': ^7.7.1
   bumpp: ^11.0.1
@@ -36,7 +36,7 @@ catalogs:
     mlly: ^1.8.2
     oxc-parser: ^0.121.0
     p-limit: ^7.3.0
-    sqlite-vec: ^0.1.7
+    sqlite-vec: ^0.1.8
     tinyglobby: ^0.2.15
     unist-util-visit: ^5.1.0
   dev-build:
diff --git a/src/retriv/index.ts b/src/retriv/index.ts
index dade6bf7..7531322d 100644
--- a/src/retriv/index.ts
+++ b/src/retriv/index.ts
@@ -6,15 +6,47 @@ export type { ChunkEntity, Document, IndexConfig, IndexPhase, IndexProgress, Sea
 type RetrivInstance = Awaited<ReturnType<typeof getDb>>
 
 export class SearchDepsUnavailableError extends Error {
-  constructor(cause: unknown) {
-    super('Search dependencies unavailable (sqlite-vec or retriv not installed). Search indexing skipped.')
+  constructor(cause: unknown, message?: string) {
+    super(message ?? 'Search dependencies unavailable (sqlite-vec or retriv not installed). Search indexing skipped.')
     this.name = 'SearchDepsUnavailableError'
     this.cause = cause
   }
 }
 
+let _fts5Available: boolean | null = null
+
+/**
+ * Probe whether SQLite FTS5 module is available.
+ * Windows Node.js binaries often ship without FTS5 compiled in.
+ */
+function checkFts5(): boolean {
+  if (_fts5Available !== null)
+    return _fts5Available
+  const nodeSqlite = globalThis.process?.getBuiltinModule?.('node:sqlite') as typeof import('node:sqlite') | undefined
+  if (!nodeSqlite) {
+    _fts5Available = false
+    return false
+  }
+  const db = new nodeSqlite.DatabaseSync(':memory:')
+  try {
+    db.exec('CREATE VIRTUAL TABLE _fts5_probe USING fts5(content)')
+    db.exec('DROP TABLE _fts5_probe')
+    _fts5Available = true
+  }
+  catch {
+    _fts5Available = false
+  }
+  finally {
+    db.close()
+  }
+  return _fts5Available
+}
+
 // Dynamic imports: retriv/chunkers/auto eagerly loads typescript which may not be installed (e.g. npx)
 export async function getDb(config: Pick<IndexConfig, 'dbPath'>) {
+  if (!checkFts5())
+    throw new SearchDepsUnavailableError(new Error('FTS5 module not available'), 'SQLite FTS5 module not available. Search indexing skipped. On Windows, run from WSL where FTS5 is included.')
+
   let createRetriv, autoChunker, sqliteMod, sqliteVec, transformersJs, cachedEmbeddings
   try {
     ;([