[Bug]: npm plugins not loaded on v1.3.8 — "No plugin targets found", expects "oc-plugin" field in package.json

[alexzoo]

Description

Description

After upgrading from v1.3.7 to v1.3.8, npm plugins are no longer loaded. Running opencode plugin <name> reports:

No plugin targets found
Expected: "oc-plugin": ["server", "tui"] or tuples like [["tui", { ... }]].
This affects all npm-based plugins that don't declare the new "oc-plugin" field in their package.json, including oh-my-opencode-slim, opencode-mystatus, and superpowers.

Steps to Reproduce

1. Install v1.3.8 (opencode upgrade v1.3.8)
2. Have an npm plugin in config (e.g. "plugin": ["oh-my-opencode-slim"])
3. Run opencode plugin oh-my-opencode-slim
4. Observe: "No plugin targets found"

Expected Behavior

Plugins that export a valid Plugin function (the previous standard) should be loaded, or there should be a fallback for backward compatibility.

Actual Behavior

Only plugins declaring "oc-plugin": ["server"] in package.json are loaded. The entire ecosystem of existing plugins is broken.

Workaround

Downgrade to v1.3.7:

opencode upgrade v1.3.7
bunx oh-my-opencode-slim@latest install --reset --no-tui
After downgrade, all plugins load normally.
Environment
- macOS Apple Silicon
- OpenCode v1.3.8 (broken) / v1.3.7 (working)
- Plugin: oh-my-opencode-slim 0.9.0
Additional Context
The PluginModule type in @opencode-ai/plugin@1.3.8 now expects { server: Plugin } instead of a bare Plugin export. This appears to be introduced in v1.3.4 ("Add single target plugin entrypoints") but plugins in the ecosystem haven't adapted yet.

### Plugins

oh-my-opencode-slim 0.9.0

### OpenCode version

v1.3.8

### Steps to reproduce

Steps to Reproduce
Install v1.3.8 (opencode upgrade v1.3.8)
Have an npm plugin in config (e.g. "plugin": ["oh-my-opencode-slim"])
Run opencode plugin oh-my-opencode-slim
Observe: "No plugin targets found"
Expected Behavior
Plugins that export a valid Plugin function (the previous standard) should be loaded, or there should be a fallback for backward compatibility.

Actual Behavior
Only plugins declaring "oc-plugin": ["server"] in package.json are loaded. The entire ecosystem of existing plugins is broken.

### Screenshot and/or share link

_No response_

### Operating System

macOS Apple Silicon

### Terminal

_No response_

[erkanercan]

A workaround and temporary fix for the same related issue at griffinmartin/opencode-claude-auth#101 (comment)

[erkanercan]

• Also, I see a fix is currently deploying in this repo: fix(plugin): properly resolve entrypoints without leading dot #20140

[jd-apprentice]

Seems fixed in https://github.com/anomalyco/opencode/releases/tag/v1.3.9

[DenisBalan]

same happening now

:/tmp/qq$ opencode --log-level DEBUG --print-logs plugin oh-my-opencode-slim@latest

INFO  2026-04-25T19:23:21 +264ms service=server-proxy version=1.14.25 args=["--log-level","DEBUG","--print-logs","plugin","oh-my-opencode-slim@latest"] process_role=main run_id=6697173f-f9c3-40f5-81c0-568eb12c572f opencode

┌  Install plugin oh-my-opencode-slim@latest
INFO  2026-04-25T19:23:21 +1ms service=server-proxy directory=/tmp/qq creating instance
INFO  2026-04-25T19:23:21 +3ms service=project directory=/tmp/qq fromDirectory
INFO  2026-04-25T19:23:21 +4ms service=db path=/home/qqq/.local/share/opencode/opencode.db opening database
INFO  2026-04-25T19:23:21 +2ms service=db count=13 mode=bundled applying migrations
│
◇  Plugin package ready
│
■  Manifest read failed
│
■  Installed "oh-my-opencode-slim@latest" but failed to read /home/qqq/.cache/opencode/packages/oh-my-opencode-slim@latest/node_modules/oh-my-opencode-slim
│
■  ENOENT: no such file or directory, open '/home/qqq/.cache/opencode/packages/oh-my-opencode-slim@latest/node_modules/package.json'
│
└  Done

[github-actions]

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