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Qwen3 Coder 480B Turbo (Venice) on Diagnose why GitHub Actions stopped running

QQwen3 Coder 480B Turbo (Venice) · venice-mini-agent v1.2 · cloud · 2026-10-15 · by @bobsiopener

Trust 80%Fully autonomoussuccess · first try
Cost
$0.0018
Wall time
9s
Human step-ins
0
Outcome
Pass

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Summary

Exact prompt

Our GitHub Actions CI stopped running (no runs at all, no errors). The repo is in ./repo (see repo/NOTES.md and repo/.github/workflows/ci.yml). Find the root cause and fix the workflow file in place so CI runs again for pushes and PRs to the default branch. Then write DIAGNOSIS.md in the current directory with the root cause in 3-5 sentences. Do not use the network.

Task prompt given to the agent (headless, offline, synthetic fixture inputs): Our GitHub Actions CI stopped running (no runs at all, no errors). The repo is in ./repo (see repo/NOTES.md and repo/.github/workflows/ci.yml). Find the root cause and fix the workflow file in place so CI runs again for pushes and PRs to the default branch. Then write DIAGNOSIS.md in the current directory with the root cause in 3-5 sentences. Do not use the network. Inspired by https://x.com/kunchenguid/status/2098814897354137710 (unverified; not checked with the author). This is an independent re-run on a reproducible synthetic task; it does not report or reproduce the original post's numbers. Cost is real Venice spend (paid from DIEM credit), as reported by Venice.

Success criteria: All automated rubric checks pass: push trigger includes trunk (or unfiltered); pull_request trigger includes trunk (or unfiltered); push paths filter does not exclude src/ changes; DIAGNOSIS.md names branch rename main->trunk as root cause; workflow is valid YAML with jobs.test.

Setup notes: Harness: venice-mini-agent v1.2 via Venice OpenAI-compatible API. Minimal OpenAI-compatible tool loop (/workspace/usecase-runner/venice_agent.py): tools list_files/read_file/write_file/run_shell in the work dir, max 25 turns, max_tokens 16000/call, temperature 0.2, Venice system prompt and web search off, $0.08 per-run cost cap. Identical for all Venice models. Cost source: Venice /api/v1/models model_spec.pricing (USD per 1M tokens), fetched 2026-10-14; cost computed from per-call usage. Paid from Bob's DIEM daily allowance. input_tokens includes cached reads; cached_tokens = cache reads; cache_write_tokens = cache writes (0 if not reported). Single run, no retries; scored automatically (5/5 checks). Runner notes: Single run, no retries. Same rubric/score.py as Claude runs. Web disabled.

Metrics

Cost
$0.0018
Wall time
9s
Human step-ins
0
Turns
6
Model usage
ModelInput tokOutput tokCost
QQwen3 Coder 480B Turbo (Venice)venice/qwen3-coder-480b-a35b-instruct-turbo5,718628$0.0018

Reproduce this run

  1. Use the use case prompt on the use case page.
  2. Same setup: Qwen3 Coder 480B Turbo (Venice) (venice/qwen3-coder-480b-a35b-instruct-turbo) via venice-mini-agent v1.2, cloud.
  3. It counts as a success only if it meets every success criterion: All automated rubric checks pass: push trigger includes trunk (or unfiltered); pull_request trigger includes trunk (or unfiltered); push paths filter does not exclude src/ changes; DIAGNOSIS.md names branch rename main->trunk as root cause; workflow is valid YAML with jobs.test.
  4. Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.

How runs are scored: Methodology.

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Automated checks

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Evidence log
{"turn": 1, "response": {"service_tier": "default", "id": "chatcmpl-RgC9gIWySfatIDfkciI5j0cT", "object": "chat.completion", "created": 1792023059, "model": "qwen3-coder-480b-a35b-instruct-turbo", "choices": [{"index": 0, "message": {"role": "assistant", "content": "I'll help you diagnose and fix the GitHub Actions CI issue. Let me first examine the repository structure and the relevant files.\n\n", "reasoning_content": null, "name": null, "tool_calls": [{"id": "call_8aeb8d7f8172a6c6", "type": "function", "function": {"name": "list_files", "arguments": "{\"path\": \"repo\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 603, "completion_tokens": 46, "total_tokens": 649, "prompt_tokens_details": {"cached_tokens": 480}, "cache_read_input_tokens": 480}, "cost": {"usd": 0, "diem": 0.00013125}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 1, "tool": "list_files", "args": {"path": "repo"}, "result": "repo/NOTES.md\nrepo/src/calc.py\nrepo/tests/test_calc.py"}
{"turn": 2, "response": {"service_tier": "default", "id": "chatcmpl-Rludxwq8h0nqQmzO7CUk0Xu1", "object": "chat.completion", "created": 1792023060, "model": "qwen3-coder-480b-a35b-instruct-turbo", "choices": [{"index": 0, "message": {"role": "assistant", "content": "Let me check the NOTES.md file first to understand the context, then examine the GitHub Actions workflow file.\n\n", "reasoning_content": null, "name": null, "tool_calls": [{"id": "call_ac154d96f0ca5e57", "type": "function", "function": {"name": "read_file", "arguments": "{\"path\": \"repo/NOTES.md\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 680, "completion_tokens": 46, "total_tokens": 726, "prompt_tokens_details": {"cached_tokens": 624}, "cache_read_input_tokens": 624}, "cost": {"usd": 0, "diem": 0.00011356}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 2, "tool": "read_file", "args": {"path": "repo/NOTES.md"}, "result": "# Incident notes\n- Until 2026-09-30 CI ran on every push.\n- On 2026-10-01 we renamed the default branch from `main` to `trunk` (Settings > Branches) and moved app code from `app/` into `src/`.\n- Since then no workflow runs appear in the Actions tab for pushes or PRs. Actions are enabled for the repo. No errors are shown anywhere.\n"}
{"turn": 3, "response": {"service_tier": "default", "id": "chatcmpl-RcrHKb9MYvwkZlEzihdELnia", "object": "chat.completion", "created": 1792023061, "model": "qwen3-coder-480b-a35b-instruct-turbo", "choices": [{"index": 0, "message": {"role": "assistant", "content": "Now let me examine the GitHub Actions workflow file to identify the issue.\n\n", "reasoning_content": null, "name": null, "tool_calls": [{"id": "call_cb7aace5f76367e3", "type": "function", "function": {"name": "read_file", "arguments": "{\"path\": \"repo/.github/workflows/ci.yml\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 839, "completion_tokens": 42, "total_tokens": 881, "prompt_tokens_details": {"cached_tokens": 704}, "cache_read_input_tokens": 704}, "cost": {"usd": 0, "diem": 0.00013841}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 3, "tool": "read_file", "args": {"path": "repo/.github/workflows/ci.yml"}, "result": "name: CI\non:\n  push:\n    branches: [ main ]\n    paths:\n      - 'src/**'\n  pull_request:\n    branches: [ main ]\njobs:\n  test:\n    runs-on: ubuntu-latest\n    steps:\n      - uses: actions/checkout@v4\n      - run: python -m unittest discover -s tests\n"}
{"turn": 4, "response": {"service_tier": "default", "id": "chatcmpl-RVJHjayizCbIMnjgOSkSGI5Y", "object": "chat.completion", "created": 1792023061, "model": "qwen3-coder-480b-a35b-instruct-turbo", "choices": [{"index": 0, "message": {"role": "assistant", "content": "I found the root cause! The workflow file still references the old branch name `main` instead of the new branch name `trunk` that was set as the default branch on 2026-10-01. This explains why no workflows are running - GitHub Actions is configured to trigger only on the `main` branch, but all pushes and PRs are now happening on the `trunk` branch.\n\nLet me fix the workflow file by updating the branch references from `main` to `trunk`:\n\n", "reasoning_content": null, "name": null, "tool_calls": [{"id": "call_588a09c6042540ed", "type": "function", "function": {"name": "write_file", "arguments": "{\"path\": \"repo/.github/workflows/ci.yml\", \"content\": \"name: CI\\non:\\n  push:\\n    branches: [ trunk ]\\n    paths:\\n      - 'src/**'\\n  pull_request:\\n    branches: [ trunk ]\\njobs:\\n  test:\\n    runs-on: ubuntu-latest\\n    steps:\\n      - uses: actions/checkout@v4\\n      - run: python -m unittest discover -s tests\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 968, "completion_tokens": 219, "total_tokens": 1187, "prompt_tokens_details": {"cached_tokens": 864}, "cache_read_input_tokens": 864}, "cost": {"usd": 0, "diem": 0.00039946000000000003}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 4, "tool": "write_file", "args": {"path": "repo/.github/workflows/ci.yml", "content": "name: CI\non:\n  push:\n    branches: [ trunk ]\n    paths:\n      - 'src/**'\n  pull_request:\n    branches: [ trunk ]\njobs:\n  test:\n    runs-on: ubuntu-latest\n    steps:\n      - uses: actions/checkout@v4\n      - run: python -m unittest discover -s tests"}, "result": "wrote 248 chars"}
{"turn": 5, "response": {"service_tier": "default", "id": "chatcmpl-Rkjdq93Z8DM3jjG0cm2PL8oV", "object": "chat.completion", "created": 1792023064, "model": "qwen3-coder-480b-a35b-instruct-turbo", "choices": [{"index": 0, "message": {"role": "assistant", "content": "Now I'll create the DIAGNOSIS.md file explaining the root cause:\n\n", "reasoning_content": null, "name": null, "tool_calls": [{"id": "call_b6cef319f4d10217", "type": "function", "function": {"name": "write_file", "arguments": "{\"path\": \"DIAGNOSIS.md\", \"content\": \"The root cause of the CI failure was that the GitHub Actions workflow file (.github/workflows/ci.yml) still referenced the old default branch name \\\"main\\\" instead of the new branch name \\\"trunk\\\". When the default branch was renamed from \\\"main\\\" to \\\"trunk\\\" on 2026-10-01, the workflow configuration wasn't updated accordingly. As a result, GitHub Actions was configured to trigger only on pushes and PRs to the \\\"main\\\" branch, but all repository activity was happening on the \\\"trunk\\\" branch. This mismatch caused the CI workflow to never trigger, even though Actions were enabled for the repository and there were no errors displayed.\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 1208, "completion_tokens": 191, "total_tokens": 1399, "prompt_tokens_details": {"cached_tokens": 0}}, "cost": {"usd": 0, "diem": 0.0007093}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 5, "tool": "write_file", "args": {"path": "DIAGNOSIS.md", "content": "The root cause of the CI failure was that the GitHub Actions workflow file (.github/workflows/ci.yml) still referenced the old default branch name \"main\" instead of the new branch name \"trunk\". When the default branch was renamed from \"main\" to \"trunk\" on 2026-10-01, the workflow configuration wasn't updated accordingly. As a result, GitHub Actions was configured to trigger only on pushes and PRs to the \"main\" branch, but all repository activity was happening on the \"trunk\" branch. This mismatch caused the CI workflow to never trigger, even though Actions were enabled for the repository and there were no errors displayed."}, "result": "wrote 629 chars"}
{"turn": 6, "response": {"service_tier": "default", "id": "chatcmpl-R1Ke1ZEsHAtMefXwkRecXUcT", "object": "chat.completion", "created": 1792023066, "model": "qwen3-coder-480b-a35b-instruct-turbo", "choices": [{"index": 0, "message": {"role": "assistant", "content": "The issue has been fixed. The GitHub Actions workflow file was configured to trigger only on the old branch name \"main\", but the default branch was renamed to \"trunk\". I've updated the workflow file to reference \"trunk\" instead of \"main\" for both push and pull_request events. The diagnosis has been documented in DIAGNOSIS.md explaining how this branch name mismatch caused CI to stop running.", "reasoning_content": null, "name": null, "tool_calls": []}, "finish_reason": "stop", "logprobs": null}], "usage": {"prompt_tokens": 1420, "completion_tokens": 84, "total_tokens": 1504, "prompt_tokens_details": {"cached_tokens": 1168}, "cache_read_input_tokens": 1168}, "cost": {"usd": 0, "diem": 0.00026092}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}

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