diff --git a/deno.json b/deno.json
index 34123bf..46fa3d5 100644
--- a/deno.json
+++ b/deno.json
@@ -20,7 +20,7 @@
     "@runt/pyodide-runtime-agent": "./packages/pyodide-runtime-agent/src/mod.ts",
     "@runt/python-runtime-agent": "./packages/python-runtime-agent/mod.ts",
     "@runt/tui": "./packages/tui/src/cli.tsx",
-    "jsr:@runtimed/schema": "jsr:@runtimed/schema@0.1.12",
+    "jsr:@runtimed/schema": "jsr:@runtimed/schema@0.3.0",
     "jsr:@std/cli": "jsr:@std/cli@^1.0.22",
     "jsr:@std/testing": "jsr:@std/testing@^1.0.15"
   },
diff --git a/packages/pyodide-runtime-agent/src/pyodide-agent.ts b/packages/pyodide-runtime-agent/src/pyodide-agent.ts
index 3249804..82f60c8 100644
--- a/packages/pyodide-runtime-agent/src/pyodide-agent.ts
+++ b/packages/pyodide-runtime-agent/src/pyodide-agent.ts
@@ -374,6 +374,20 @@ export class PyodideRuntimeAgent extends RuntimeAgent {
         mountData,
       });
 
+      // Send uploaded files to worker
+      const files = this.store.query(tables.files.select());
+      // This is a bit of a hack because we don't have access to the artifact client in the worker.
+      // We send the base URL to the worker for now.
+      const artifactBaseUrl = this.config.artifactClient.getArtifactUrl("");
+
+      if (files.length > 0) {
+        this.sendWorkerMessage("files", { files, artifactBaseUrl });
+      }
+
+      this.onFilesUpload((files) => {
+        this.sendWorkerMessage("files", { files, artifactBaseUrl });
+      });
+
       this.isInitialized = true;
       logger.info("Pyodide worker initialized successfully");
     } catch (error) {
diff --git a/packages/pyodide-runtime-agent/src/pyodide-worker.ts b/packages/pyodide-runtime-agent/src/pyodide-worker.ts
index d97ce16..684753a 100644
--- a/packages/pyodide-runtime-agent/src/pyodide-worker.ts
+++ b/packages/pyodide-runtime-agent/src/pyodide-worker.ts
@@ -14,6 +14,7 @@ import {
   getEssentialPackages,
   isFirstRun,
 } from "./cache-utils.ts";
+import type { FileData } from "jsr:@runtimed/schema";
 
 declare const self: DedicatedWorkerGlobalScope;
 
@@ -112,6 +113,76 @@ await run_registered_tool("${data.toolName}", kwargs_string)
         break;
       }
 
+      case "files": {
+        if (!pyodide) {
+          throw new Error("Pyodide not initialized");
+        }
+
+        try {
+          // Cast the files to the expected type
+          const files = data.files as readonly FileData[];
+          // Cast the artifact base URL to the expected type
+          const artifactBaseUrl = data.artifactBaseUrl as string;
+
+          if (!artifactBaseUrl) {
+            throw new Error("Artifact base URL is required");
+          }
+
+          const filesInDirectory = pyodide.FS.readdir("./");
+
+          // Write/delete the new files
+          for (const file of files) {
+            if (file.deletedAt) {
+              if (!filesInDirectory.includes(file.fileName)) {
+                continue;
+              }
+              console.log("worker deleting file", { file });
+              // Just in case we couldn't match the file, we want to put a try/catch
+              // to avoid the worker crashing
+              try {
+                pyodide.FS.unlink(`./${file.fileName}`);
+              } catch (error) {
+                // File doesn't exist, nothing to delete
+                console.log("file does not exist, skipping deletion", {
+                  fileName: file.fileName,
+                  error,
+                });
+              }
+            } else {
+              console.log("worker fetching file", { file });
+              console.log("artifactBaseUrl", artifactBaseUrl);
+              const response = await fetch(
+                artifactBaseUrl + file.artifactId,
+              );
+
+              // Handle different file types based on mimeType
+              if (file.mimeType && file.mimeType.startsWith("text/")) {
+                // Text files
+                const content = await response.text();
+                pyodide.FS.writeFile(`./${file.fileName}`, content);
+              } else {
+                // Binary files (images, etc.)
+                const arrayBuffer = await response.arrayBuffer();
+                const uint8Array = new Uint8Array(arrayBuffer);
+                pyodide.FS.writeFile(`./${file.fileName}`, uint8Array);
+              }
+            }
+          }
+
+          console.log("worker wrote files and cleaned up old files", { data });
+
+          self.postMessage({ id, type: "response", data: { success: true } });
+        } catch (error) {
+          console.error("Error in files message handler", error);
+          self.postMessage({
+            id,
+            type: "response",
+            error: error instanceof Error ? error.message : String(error),
+          });
+        }
+        break;
+      }
+
       case "shutdown": {
         await shutdownWorker();
         self.postMessage({ id, type: "response", data: { success: true } });
diff --git a/packages/schema/deno.json b/packages/schema/deno.json
index 5b8ba7c..43b0bfd 100644
--- a/packages/schema/deno.json
+++ b/packages/schema/deno.json
@@ -19,7 +19,7 @@
   },
   "imports": {
     "fractional-indexing": "npm:fractional-indexing@^3.2.0",
-    "@runtimed/schema": "jsr:@runtimed/schema@0.1.12",
+    "@runtimed/schema": "jsr:@runtimed/schema@0.3.0",
     "jsr:@std/testing": "jsr:@std/testing@^1.0.15"
   },
   "lint": {