[coder3101]

Purpose

For the purpose of feature parity of rust frontend with python. It is being tracked #44280

Test Plan

• cargo fmt --check --package vllm-text --package vllm-chat --package vllm-server --package vllm-engine-core-client --package vllm-mock-engine
• cargo nextest run -p vllm-text -p vllm-chat -p vllm-server -p vllm-engine-core-client -p vllm-mock-engine

Test Result

• cargo fmt --check ... : passed
• cargo nextest run -p : 494 passed, 1 failed, 1 skipped (unrelated failing test vllm-text lower::tests::lower_text_request_uses_real_qwen_generation_defaults )

---

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
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[claude]

Claude Code Review

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[github-actions]

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[tahsintunan]

I believe this overlaps with #44222, which adds /tokenize plus /detokenize and handles both the chat and completion forms, so it's the broader version and already in active review. I'd suggest consolidating there and closing this one in its favor.

Also, for future reference:

vllm/AGENTS.md

Lines 6 to 19 in 228bcc4

	## 1. Contribution Policy (Mandatory)
	### Duplicate-work checks
	Before proposing a PR, run these checks:
	```bash
	gh issue view <issue_number> --repo vllm-project/vllm --comments
	gh pr list --repo vllm-project/vllm --state open --search "<issue_number> in:body"
	gh pr list --repo vllm-project/vllm --state open --search "<short area keywords>"
	```
	- If an open PR already addresses the same fix, do not open another.
	- If your approach is materially different, explain the difference in the issue.