diff --git a/src/mcp/github-file-ops-server.ts b/src/mcp/github-file-ops-server.ts
index 9a769af..ef03178 100644
--- a/src/mcp/github-file-ops-server.ts
+++ b/src/mcp/github-file-ops-server.ts
@@ -125,13 +125,58 @@ server.tool(
             ? filePath
             : join(REPO_DIR, filePath);
 
-          const content = await readFile(fullPath, "utf-8");
-          return {
-            path: filePath,
-            mode: "100644",
-            type: "blob",
-            content: content,
-          };
+          // Check if file is binary (images, etc.)
+          const isBinaryFile =
+            /\.(png|jpg|jpeg|gif|webp|ico|pdf|zip|tar|gz|exe|bin|woff|woff2|ttf|eot)$/i.test(
+              filePath,
+            );
+
+          if (isBinaryFile) {
+            // For binary files, create a blob first using the Blobs API
+            const binaryContent = await readFile(fullPath);
+
+            // Create blob using Blobs API (supports encoding parameter)
+            const blobUrl = `${GITHUB_API_URL}/repos/${owner}/${repo}/git/blobs`;
+            const blobResponse = await fetch(blobUrl, {
+              method: "POST",
+              headers: {
+                Accept: "application/vnd.github+json",
+                Authorization: `Bearer ${githubToken}`,
+                "X-GitHub-Api-Version": "2022-11-28",
+                "Content-Type": "application/json",
+              },
+              body: JSON.stringify({
+                content: binaryContent.toString("base64"),
+                encoding: "base64",
+              }),
+            });
+
+            if (!blobResponse.ok) {
+              const errorText = await blobResponse.text();
+              throw new Error(
+                `Failed to create blob for ${filePath}: ${blobResponse.status} - ${errorText}`,
+              );
+            }
+
+            const blobData = (await blobResponse.json()) as { sha: string };
+
+            // Return tree entry with blob SHA
+            return {
+              path: filePath,
+              mode: "100644",
+              type: "blob",
+              sha: blobData.sha,
+            };
+          } else {
+            // For text files, include content directly in tree
+            const content = await readFile(fullPath, "utf-8");
+            return {
+              path: filePath,
+              mode: "100644",
+              type: "blob",
+              content: content,
+            };
+          }
         }),
       );