OpenCode session service RPC outage (error -32603)

Description

Summary

OpenCode session service (/api/session RPC endpoint) has been returning -32603 "Internal error: OpenCode service failure" since approximately 2026-08-27 03:00Z UTC. All session resumption/continuation attempts fail with this error.

Impact

• 26+ sessions queued for resumption are stalled and unable to progress
• Batch worker (blogtheristo/dws6 opencode-all engine) cannot recover — all retry attempts (3–4 per session) exhausted
• Sessions include critical work: PR resolution, merge conflict handling, and feature development
• Queue persisted in .workflows/opencode-all/queue.jsonl showing state FAILED with failure code run-error

Error Details

{
  "code": -32603,
  "message": "Internal error: OpenCode service failure",
  "data": { "service": "session" }
}


### Plugins

opencode/plugin/worktree-guard.ts — guards worktree lifecycle

### OpenCode version

1.18.25

### Steps to reproduce

OpenCode version: 1.18.25
	•	Batch worker: blogtheristo/dws6 (opencode-all engine)
	•	Deployed on: DGX Spark cluster
	•	Reported by: DWS6 batch automation

### Screenshot and/or share link

_No response_

### Operating System

Ubuntu 24.04

### Terminal

PowerShell 7+ (Windows 11 built-in)