Excessive INFO logs cause high CPU

[nabeelio]

Description

My opencode is currently idle, yet it's using 30-40% CPU. Looking at the current session logs, it's written 4.3M log lines in 17 min. An session wrote 55.2M. That's hundreds/sec when idle.

Looking further, it looks that logs look like this:

INFO  2026-05-02T15:15:27 +0ms service=permission permission=skill 
pattern=writing-plans ruleset=[{...},{...},...~100 entries...] evaluate

So permissions are being evaluated continuously and it's written out at the INFO level - this should be DEBUG or lower. I have a lot of skills (100+ mostly old cruft I haven't cleaned up). I also have a long list of permission rules. I asked claude to additionally diagnose:

Even "idle" opencode processes:

• Bus events fire constantly (message.part.delta, session.updated, etc.) — see hundreds in last 60s
• TUI polls server (GET /session/...)
• Each event triggers permission check → giant ruleset log line
  Sample shows main thread 71% in kevent64 (event loop) + 24% in tight JS — that JS is the JSON serialization burning cycles.

Setting the log level through the env didn't work:

export OPENCODE_LOG_LEVEL=warn

I had to change it in the main opencode.jsonc config at the top-level

"logLevel": "WARN",

Plugins

No response

OpenCode version

1.14.31

Steps to reproduce

1. Have a lot of skills and external directories that they're loaded from
2. A large permission list:

"permission": {
  "read": {
    "~/.config/opencode/get-shit-done/*": "allow"
  },
  "external_directory": {
    "~/.cache/opencode/packages/superpowers/*": "allow",
    "~/.config/opencode/get-shit-done/*": "allow",
    "/tmp/*": "allow"
  },
  "bash": {
    "*": "ask",
    "awk *": "allow",
    "basename *": "allow",
    "cat *": "allow",
    "column *": "allow",
    "composer *": "allow",
    "cut *": "allow",
    "date *": "allow",
    "df *": "allow",
    "dirname *": "allow",
    "du *": "allow",
    "echo *": "allow",
    "env": "allow",
    "file *": "allow",
    "find *": "allow",
    "find * -delete": "ask",
    "find * -exec *": "ask",
    "git *": "allow",
    "grep *": "allow",
    "head *": "allow",
    "ls *": "allow",
    "mkdir *": "allow",
    "node *": "allow",
    "php *": "allow",
    "printf *": "allow",
    "ps *": "allow",
    "pwd": "allow",
    "rg *": "allow",
    "rtk *": "allow",
    "sed *": "allow",
    "sed --in-place": "allow",
    "sed --in-place *": "allow",
    "sed -i": "allow",
    "sed -i *": "allow",
    "sort *": "allow",
    "stat *": "allow",
    "strings *": "allow",
    "tail *": "allow",
    "test *": "allow",
    "tr *": "allow",
    "true": "allow",
    "uniq *": "allow",
    "wc *": "allow",
    "which *": "allow",
    "whoami": "allow"
  },
  "edit": "allow",
  "webfetch": "allow"
}

Screenshot and/or share link

No response

Operating System

osx 26.4.1

Terminal

iterm2

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Permission service logs full ruleset on every tool call, causing 50GB+ log bloat #17218: Same root cause — permission service logs the full ruleset on every tool call at INFO level, causing log bloat and high CPU, particularly with many skills and permission rules configured.

[nabeelio]

Closed mine since it's a duplicate of the above