fix(app): regressions

2 files changed, 8 insertions, 19 deletions

diff --git a/packages/app/src/components/prompt-input/build-request-parts.test.ts b/packages/app/src/components/prompt-input/build-request-parts.test.ts
index b0fd3a050..72bdecc01 100644
--- a/packages/app/src/components/prompt-input/build-request-parts.test.ts
+++ b/packages/app/src/components/prompt-input/build-request-parts.test.ts
@@ -112,7 +112,7 @@ describe("buildRequestParts", () => {
       // Special chars should be encoded
       expect(filePart.url).toContain("file%23name.txt")
       // Should have Windows drive letter properly encoded
-      expect(filePart.url).toMatch(/file:\/\/\/[A-Z]%3A/)
+      expect(filePart.url).toMatch(/file:\/\/\/[A-Z]:/)
     }
   })
 
@@ -210,7 +210,7 @@ describe("buildRequestParts", () => {
     if (filePart?.type === "file") {
       // Should handle absolute path that differs from sessionDirectory
       expect(() => new URL(filePart.url)).not.toThrow()
-      expect(filePart.url).toContain("/D%3A/other/project/file.ts")
+      expect(filePart.url).toContain("/D:/other/project/file.ts")
     }
   })
 
diff --git a/packages/app/src/components/prompt-input/build-request-parts.ts b/packages/app/src/components/prompt-input/build-request-parts.ts
index 11aec9631..0cc54dc2b 100644
--- a/packages/app/src/components/prompt-input/build-request-parts.ts
+++ b/packages/app/src/components/prompt-input/build-request-parts.ts
@@ -1,6 +1,7 @@
 import { getFilename } from "@opencode-ai/util/path"
 import { type AgentPartInput, type FilePartInput, type Part, type TextPartInput } from "@opencode-ai/sdk/v2/client"
 import type { FileSelection } from "@/context/file"
+import { encodeFilePath } from "@/context/file/path"
 import type { AgentPart, FileAttachmentPart, ImageAttachmentPart, Prompt } from "@/context/prompt"
 import { Identifier } from "@/utils/id"
 
@@ -27,23 +28,11 @@ type BuildRequestPartsInput = {
   sessionDirectory: string
 }
 
-const absolute = (directory: string, path: string) =>
-  path.startsWith("/") ? path : (directory + "/" + path).replace("//", "/")
-
-const encodeFilePath = (filepath: string): string => {
-  // Normalize Windows paths: convert backslashes to forward slashes
-  let normalized = filepath.replace(/\\/g, "/")
-
-  // Handle Windows absolute paths (D:/path -> /D:/path for proper file:// URLs)
-  if (/^[A-Za-z]:/.test(normalized)) {
-    normalized = "/" + normalized
-  }
-
-  // Encode each path segment (preserving forward slashes as path separators)
-  return normalized
-    .split("/")
-    .map((segment) => encodeURIComponent(segment))
-    .join("/")
+const absolute = (directory: string, path: string) => {
+  if (path.startsWith("/")) return path
+  if (/^[A-Za-z]:[\\/]/.test(path) || /^[A-Za-z]:$/.test(path)) return path
+  if (path.startsWith("\\\\") || path.startsWith("//")) return path
+  return `${directory.replace(/[\\/]+$/, "")}/${path}`
 }
 
 const fileQuery = (selection: FileSelection | undefined) =>