anomalyco / anomalyco/opencode
Slow startup time in recent OpenCode versions on Mac
@kitlangton is already working on this.
Since Sep 3, 2026.
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Description
Description
OpenCode has become noticeably slow to start over the last couple of weeks.
Environment
- MacBook with M5 chip
- Only one MCP server configured: Chrome DevTools
- No additional plugins
Issue
Startup now takes around 5–20 seconds.
Current version: 1.18.25
I don't remember the exact OpenCode version where this started, but the issue appeared roughly two weeks ago and has persisted across the recent versions.
Given the minimal setup, I don't expect MCP or plugins to be causing this delay.
Would appreciate help identifying what might be slowing down the startup.
https://github.com/user-attachments/assets/bf85299a-06dc-48f2-abc1-fde59b3b9748
NOTE: This isn't a duplicate of #19197 that was for version 1.3.2 of Opencode (I never faced this issue with 1.3.2 on M5 Macbook)
Plugins
Chrome Devtools MCP
OpenCode version
1.18.25
Steps to reproduce
opencode --auto
Screenshot and/or share link
https://github.com/user-attachments/assets/02fdaecd-39e0-406b-936c-58118b622147
Operating System
MacOS 26.6.2
Terminal
Apple Default Terminal,Ghostty,iTerm2
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