[jonahgabriel]

Summary

• add a checked-in systemd unit for the .201 Qwen coder vLLM service
• preserve the ADK-required --enable-auto-tool-choice and --tool-call-parser qwen3_coder flags
• add a CI guard so the served model, port, context length, and tool parser flags do not drift

Evidence

• uv run ruff check tests/ci/test_vllm_qwen_coder_service_unit.py --fix
• uv run pytest tests/ci/test_vllm_qwen_coder_service_unit.py -q -> 2 passed
• live hotpatch proof: SEA --agent correlation f6859ca4-e2ad-46ea-bd14-4eaab5ae81f2 returned PASS and {"is_healthy": true}
• direct delegation proof: correlation 39cba6ae-68d0-4690-8238-fcdda82f3890, model Qwen3.6-27B-MTP-IQ4_XS.gguf, content healthy=true

Evidence-Ticket: OMN-12716
Evidence-Source: OCC#2199

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: fe685378-36cd-46c4-9fd5-de371b76886d

📥 Commits

Reviewing files that changed from the base of the PR and between 5d48bad and 308bdb2.

📒 Files selected for processing (1)

• tests/ci/test_vllm_qwen_coder_service_unit.py

📝 Walkthrough

Walkthrough

This PR adds a systemd service unit to deploy vLLM as a managed service for the Qwen3.6-35B coder model on GPU 0 with OpenAI-compatible API, including tool-calling parser and auto-tool-choice support, along with regression-guard tests validating the service configuration.

Changes

Qwen Coder vLLM Service

Layer / File(s)

Summary

vLLM systemd service configuration and validation tests deploy/systemd/vllm-gpu0-qwen-coder.service, tests/ci/test_vllm_qwen_coder_service_unit.py

Systemd unit configures vLLM with GPU 0, Qwen3.6-35B model, port 8000, context length 131072, tool-call parser qwen3_coder, auto-tool-choice enabled, user jonah, CUDA device visibility, resource limits (MEMLOCK=infinity, NOFILE=65535), restart-on-failure with delay, and 600s startup timeout. Tests assert presence of tool-calling flags and stability endpoint parameters (port, model name, context length).

🎯 2 (Simple) | ⏱️ ~8 minutes

A rabbit springs forth with glee,
A service spawned, for Qwen to be,
Tools called by code, tests standing guard,
GPU zero works not too hard.
🐰✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly summarizes the main change: adding and testing a systemd unit file configuration for the Qwen vLLM tool parser service.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch jonah/omn-12716-vllm-tool-parser-config

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@tests/ci/test_vllm_qwen_coder_service_unit.py`:
- Around line 5-24: Add the missing pytest markers by importing pytest at the
top and decorating both test
functions—test_qwen_coder_vllm_unit_declares_tool_call_parser_flags and
test_qwen_coder_vllm_unit_preserves_stability_endpoint_identity—with
`@pytest.mark.unit` so they comply with the test-file marker requirement; ensure
the import statement (import pytest) is added if not already present.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 820b5db9-601e-4abd-97bb-54a389c2b3e8

📥 Commits

Reviewing files that changed from the base of the PR and between e62507f and 5d48bad.

📒 Files selected for processing (2)

• deploy/systemd/vllm-gpu0-qwen-coder.service
• tests/ci/test_vllm_qwen_coder_service_unit.py