oc-idle-compaction

OpenCode2 plugin that compacts large idle sessions before their prompt cache expires. Inspired by Claude Code's idle compaction.

Install

Requires OpenCode v2.0.29 or later.

Add the package to your OpenCode2 opencode.json / opencode.jsonc:

{
  "$schema": "https://opencode.ai/config.json",
  "plugins": [
    {
      "package": "github:Sn0wo2/oc-idle-compaction",
      "options": {
        "idleSeconds": 3240,
        "minTokens": 200000
      }
    }
  ]
}

Configure

Per-Model & Per-Provider Configuration

Configure idleCompaction directly under providers in opencode.json / opencode.jsonc:

{
  "$schema": "https://opencode.ai/config.json",
  "providers": {
    "your-provider": {
      // Optional: provider-level default
      "idleCompaction": {
        "idleSeconds": 1200
      },
      "models": {
        "your-model": {
          // Model-level override
          "idleCompaction": {
            "idleSeconds": 600,
            "minTokens": 100000
          }
        },
        "expensive-model": {
          // Disable idle compaction for specific models
          "idleCompaction": false
        }
      }
    }
  }
}