From a1c46e05ee628f16f92ead49c956b5c0bec2783a Mon Sep 17 00:00:00 2001
From: Dax Raad <d@ironbay.co>
Date: Thu, 5 Feb 2026 10:07:59 -0500
Subject: [PATCH] core: fix plugin installation to use direct package.json
 manipulation instead of bun add

This ensures plugins install more reliably by writing dependencies directly
to package.json rather than relying on bun add commands which can fail
in certain environments. Also adds a small delay to ensure filesystem
operations complete before proceeding.
---
 packages/opencode/src/config/config.ts | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/packages/opencode/src/config/config.ts b/packages/opencode/src/config/config.ts
index dfb86dbe2..ed1b15500 100644
--- a/packages/opencode/src/config/config.ts
+++ b/packages/opencode/src/config/config.ts
@@ -249,29 +249,22 @@ export namespace Config {
 
   export async function installDependencies(dir: string) {
     const pkg = path.join(dir, "package.json")
-    const targetVersion = Installation.isLocal() ? "latest" : Installation.VERSION
+    const targetVersion = Installation.isLocal() ? "*" : Installation.VERSION
 
-    if (!(await Bun.file(pkg).exists())) {
-      await Bun.write(pkg, "{}")
+    const json = await Bun.file(pkg)
+      .json()
+      .catch(() => ({}))
+    json.dependencies = {
+      ...json.dependencies,
+      "@opencode-ai/plugin": targetVersion,
     }
+    await Bun.write(pkg, JSON.stringify(json, null, 2))
+    await new Promise((resolve) => setTimeout(resolve, 3000))
 
     const gitignore = path.join(dir, ".gitignore")
     const hasGitIgnore = await Bun.file(gitignore).exists()
     if (!hasGitIgnore) await Bun.write(gitignore, ["node_modules", "package.json", "bun.lock", ".gitignore"].join("\n"))
 
-    await BunProc.run(
-      [
-        "add",
-        `@opencode-ai/plugin@${targetVersion}`,
-        "--exact",
-        // TODO: get rid of this case (see: https://github.com/oven-sh/bun/issues/19936)
-        ...(proxied() ? ["--no-cache"] : []),
-      ],
-      {
-        cwd: dir,
-      },
-    ).catch(() => {})
-
     // Install any additional dependencies defined in the package.json
     // This allows local plugins and custom tools to use external packages
     await BunProc.run(