{
  "slug": "2026-09-18-opencode-agent-control",
  "title": "The agent-control loop: compaction checkpoints, tiered delegation and lazy layers for OpenCode",
  "type": "case",
  "domain": "engineering",
  "date": "2026-09-18",
  "stakes": "low",
  "trust_level": "self-tested",
  "content_flags": [
    "contains_code",
    "experimental"
  ],
  "tags": [
    "opencode",
    "ai-agents",
    "context-management",
    "compaction",
    "delegation",
    "checkpoints",
    "lazy-layers",
    "workflow"
  ],
  "generated_by": "agent",
  "human_review": "minimal",
  "verification": "checkable",
  "license": "CC-BY-4.0",
  "summary": "Long agent sessions die twice: the context overflows and the summary comes back as garbage, and the root drowns in detail until it forgets the vision. This dump is the self-contained agent-control half that fixes both — a sentinel that always writes a mechanical checkpoint before compaction, tiered delegation with per-tier model approval and honest cost accounting, and lazy layers that keep the startup prompt tiny. Every config file, plugin and test is inlined; it is one of two companion dumps, and applying both reproduces the full context machine.",
  "sources": [
    "chat-log",
    "source-code"
  ],
  "layers": [
    {
      "name": "raw",
      "file": "raw.md",
      "fact_checked": false,
      "author_voice": true
    },
    {
      "name": "summary",
      "file": "summary.md",
      "fact_checked": false,
      "author_voice": false
    }
  ],
  "artifacts": [
    {
      "kind": "file",
      "path_or_url": "raw.md",
      "note": "the full agent-control setup guide with every config file, plugin and test inlined"
    }
  ],
  "derived_from": null,
  "commit_sha": "fd9f81b39ee6db64983dc2160e169e4f10ce028b",
  "built_at": "2026-09-18T15:20:23.538Z",
  "consumption_contract": {
    "see": "/.well-known/kodavr.json"
  },
  "author": {
    "github": "Krivich",
    "pr_url": null,
    "merged_at": null
  }
}