diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2fb9b8a..8f656e3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,6 +22,9 @@ jobs:
       - name: Check formatting
         run: deno fmt --check
 
+      - name: Build kit-string
+        run: deno task build:kit-string
+
       - name: Lint
         run: deno lint
 
diff --git a/PR.md b/PR.md
new file mode 100644
index 0000000..1c68e48
--- /dev/null
+++ b/PR.md
@@ -0,0 +1,38 @@
+## Export kit driver as injectable string for drizzle-kit
+
+### Summary
+
+Adds a `./kit-string` export containing the bundled driver code as a string. This enables drizzle-kit to inject the `node:sqlite` driver without adding a runtime dependency.
+
+### Changes
+
+**API Refactoring**
+- Move kit-only functions (`prepareSqliteParams`, `normaliseSQLiteUrl`) from `shared.ts` to `kit.ts`
+- Simplify driver API: `createNodeSqlDriver(dbPath, prepareSqliteParams)` — caller provides the param preparation function
+
+**New Export**
+- `./kit-string` exports `drizzleKitDriverBlock: string` containing the bundled driver code
+- Generated via `deno task build:kit-string` using `Deno.bundle`
+- Output goes to `dist/kit-string.ts` (gitignored, generated at publish time)
+
+**CI/Publishing**
+- Added `build:kit-string` step to publish workflow
+- Validates export statement is stripped (fails fast if bundler output format changes)
+
+**Improved Error Handling**
+- Add `hasColumns()` guard in proxy fallback path with descriptive error message
+- Consistent error handling between shared and kit code paths
+
+### Usage in drizzle-kit
+
+```ts
+import { drizzleKitDriverBlock } from "@hotsauce/drizzle-runtime-sqlite/kit-string";
+
+// Inject into connections.ts at build time
+const nodeSqliteDriver = new Function(drizzleKitDriverBlock + "; return createNodeSqlDriver;")();
+```
+
+### Testing
+
+- All 133 tests pass (Deno 2.7)
+- Build script validated
diff --git a/deno.jsonc b/deno.jsonc
index fec0d47..dc2845c 100644
--- a/deno.jsonc
+++ b/deno.jsonc
@@ -35,5 +35,8 @@
     "strict": true,
     "noImplicitAny": true
   },
+  "publish": {
+    "exclude": ["!dist/kit-string.ts"]
+  },
   "nodeModulesDir": "auto"
 }