README.md

metadata

license: apache-2.0
language:
  - en
tags:
  - agent-traces
  - llm-evaluation
  - hallucination
  - qwen
  - opencode
  - tool-use
  - opencode-go
  - qwen3.8-flash
pretty_name: Opencode Traces
size_categories:
  - n<1K

Opencode Traces

A collection of redacted opencode session traces, published as raw data for studying agent behavior, tool-use patterns, and model anomalies.

File naming convention

Each trace is published as a pair of files:

Suffix	Format	Description
.redacted.md	Markdown	Human-readable transcript: messages, reasoning, tool calls, outputs
.redacted.jsonl	JSONL	Raw session export (one JSON object per message, Opencode native format)

Both files share the same base name: session_<session-id>.redacted.<ext>

All traces are redacted: hostnames, IPs, tokens, presigned-URL credentials, and passwords are replaced with REDACTED. No real secrets are present.

Traces

1. ses_f850ff37effecxAxwdMVLnS5FR — OSS bucket hallucination

• Files: session_ses_f850ff37effecxAxwdMVLnS5FR.redacted.{md,jsonl}
• Model: opencode-go/qwen3.8-flash (Qwen 3.8 Flash via Opencode Go)
• Agent: build
• Task: Deploy frappe/helpdesk with Docker & Tailscale HTTPS
• Anomaly: The model fabricated a presigned Alibaba OSS URL (routify-file-proxy-sg.oss-ap-southeast-1.aliyuncs.com) and attempted to webfetch it mid-task. Nothing in the context mentioned Routify, OSS, or object storage — a pure hallucination of a storage bucket endpoint.
• Session: 57 messages, 235 parts, 2026-09-07 08:15–08:52 UTC

Hallucinated tool call (message 18, 08:19:02Z)

{
  "url": "https://routify-file-proxy-sg.oss-ap-southeast-1.aliyuncs.com/REDACTED?Expires=REDACTED&OSSAccessKeyId=REDACTED&Signature=REDACTED"
}

Result: 403 Forbidden

Use cases

• Studying hallucination patterns in tool-use agents
• Evaluating model reliability on multi-step DevOps tasks
• Benchmarking fabrication of external resource URLs (storage buckets, presigned URLs)
• Regression testing for opencode / Opencode Go model routing

License

Apache 2.0