2 files changed, 70 insertions, 3 deletions
diff --git a/packages/sdk/js/src/client.ts b/packages/sdk/js/src/client.ts
index e0d20152b..05f463825 100644
--- a/packages/sdk/js/src/client.ts
+++ b/packages/sdk/js/src/client.ts
@@ -5,6 +5,30 @@ import { type Config } from "./gen/client/types.gen.js"
 import { OpencodeClient } from "./gen/sdk.gen.js"
 export { type Config as OpencodeClientConfig, OpencodeClient }
 
+function pick(value: string | null, fallback?: string) {
+  if (!value) return
+  if (!fallback) return value
+  if (value === fallback) return fallback
+  if (value === encodeURIComponent(fallback)) return fallback
+  return value
+}
+
+function rewrite(request: Request, directory?: string) {
+  if (request.method !== "GET" && request.method !== "HEAD") return request
+
+  const value = pick(request.headers.get("x-opencode-directory"), directory)
+  if (!value) return request
+
+  const url = new URL(request.url)
+  if (!url.searchParams.has("directory")) {
+    url.searchParams.set("directory", value)
+  }
+
+  const next = new Request(url, request)
+  next.headers.delete("x-opencode-directory")
+  return next
+}
+
 export function createOpencodeClient(config?: Config & { directory?: string }) {
   if (!config?.fetch) {
     const customFetch: any = (req: any) => {
@@ -26,5 +50,6 @@ export function createOpencodeClient(config?: Config & { directory?: string }) {
   }
 
   const client = createClient(config)
+  client.interceptors.request.use((request) => rewrite(request, config?.directory))
   return new OpencodeClient({ client })
 }
diff --git a/packages/sdk/js/src/v2/client.ts b/packages/sdk/js/src/v2/client.ts
index ad956dd4b..e230a4b5d 100644
--- a/packages/sdk/js/src/v2/client.ts
+++ b/packages/sdk/js/src/v2/client.ts
@@ -5,6 +5,44 @@ import { type Config } from "./gen/client/types.gen.js"
 import { OpencodeClient } from "./gen/sdk.gen.js"
 export { type Config as OpencodeClientConfig, OpencodeClient }
 
+function pick(value: string | null, fallback?: string, encode?: (value: string) => string) {
+  if (!value) return
+  if (!fallback) return value
+  if (value === fallback) return fallback
+  if (encode && value === encode(fallback)) return fallback
+  return value
+}
+
+function rewrite(request: Request, values: { directory?: string; workspace?: string }) {
+  if (request.method !== "GET" && request.method !== "HEAD") return request
+
+  const url = new URL(request.url)
+  let changed = false
+
+  for (const [name, key] of [
+    ["x-opencode-directory", "directory"],
+    ["x-opencode-workspace", "workspace"],
+  ] as const) {
+    const value = pick(
+      request.headers.get(name),
+      key === "directory" ? values.directory : values.workspace,
+      key === "directory" ? encodeURIComponent : undefined,
+    )
+    if (!value) continue
+    if (!url.searchParams.has(key)) {
+      url.searchParams.set(key, value)
+    }
+    changed = true
+  }
+
+  if (!changed) return request
+
+  const next = new Request(url, request)
+  next.headers.delete("x-opencode-directory")
+  next.headers.delete("x-opencode-workspace")
+  return next
+}
+
 export function createOpencodeClient(config?: Config & { directory?: string; experimental_workspaceID?: string }) {
   if (!config?.fetch) {
     const customFetch: any = (req: any) => {
@@ -19,11 +57,9 @@ export function createOpencodeClient(config?: Config & { directory?: string; exp
   }
 
   if (config?.directory) {
-    const isNonASCII = /[^\x00-\x7F]/.test(config.directory)
-    const encodedDirectory = isNonASCII ? encodeURIComponent(config.directory) : config.directory
     config.headers = {
       ...config.headers,
-      "x-opencode-directory": encodedDirectory,
+      "x-opencode-directory": encodeURIComponent(config.directory),
     }
   }
 
@@ -35,5 +71,11 @@ export function createOpencodeClient(config?: Config & { directory?: string; exp
   }
 
   const client = createClient(config)
+  client.interceptors.request.use((request) =>
+    rewrite(request, {
+      directory: config?.directory,
+      workspace: config?.experimental_workspaceID,
+    }),
+  )
   return new OpencodeClient({ client })
 }