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LLM-Server/docs/coding-cli-setup/qwen-code.md
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haylanandClaude Bot 17747694bd feat(llm): switch to DFlash2 speculative decoding, drop qwen-classifier
Replace MTP with draft-dflash and a separate DFlash2 drafter GGUF.
Remove the qwen-classifier backend to free VRAM (GPU was at 100%).

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-05 21:28:55 +02:00

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# Qwen Code CLI
[← back to overview](index.md)
> **Source of truth:** [Qwen Code's repo](https://github.com/QwenLM/qwen-code) for config keys; the [overview](index.md) for the gateway endpoint and context size. If this page disagrees with them, they win.
Qwen Code speaks plain **OpenAI Chat Completions**. It uses the main model only. There is no separate classifier backend any more ([architecture → llama-server](../architecture.md#llama-server)).
## Auto Mode's classifier (`fastModel`)
Auto Mode's action classifier (`permissions.autoMode`) is qwen-code's safety gate for every tool call. It calls `fastModel`. With no classifier backend, either point `fastModel` at the main model (it then queues behind the main backend's slots, the reason the separate backend once existed), or leave `fastModel` unset and don't use Auto Mode.
## `~/.qwen/settings.json`
```json
{
"modelProviders": {
"openai": [
{
"id": "<main-model-provider-id-in-omniroute>",
"name": "qwen3.8-27b-local",
"envKey": "OMNIROUTE_API_KEY",
"baseUrl": "http://<server>:<OMNIROUTE_API_PORT>/v1",
"generationConfig": { "contextWindowSize": <LLAMA_CTX_SIZE / LLAMA_PARALLEL> }
}
]
},
"security": { "auth": { "selectedType": "openai" } },
"model": {
"name": "<main-model-provider-id-in-omniroute>",
"baseUrl": "http://<server>:<OMNIROUTE_API_PORT>/v1"
},
"fastModel": "<main-model-provider-id-in-omniroute>"
}
```
- `envKey` names the environment variable Qwen Code reads the API key from — set `OMNIROUTE_API_KEY=<qwen-code-cli API key>` before launching.
- **The main model's `contextWindowSize` is the per-slot context**, not `LLAMA_CTX_SIZE` itself ([overview](index.md)).
- Qwen Code also recognizes `advisorModel`, `visionModel`, `compactionModel`, `imageModel` for other model roles — none are wired up in this stack; only `fastModel` is required.
## Web search via OmniRoute
Qwen Code's own built-in web search (`tools.webSearch.enabled`) has nothing to search with here — leave it `false`. Instead this stack's SearXNG-backed search ([gateway → Web search](../gateway.md#web-search)) is exposed through a thin stdio MCP wrapper around OmniRoute's `/v1/search` REST endpoint (that endpoint isn't itself MCP — OmniRoute's real MCP surface is admin-only/LOCAL_ONLY-gated). Save this as e.g. `~/.qwen/mcp-servers/omniroute-search/index.mjs` (needs `@modelcontextprotocol/sdk` and `zod`: `npm init -y && npm i @modelcontextprotocol/sdk zod` in that directory):
```js
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { z } from "zod";
const BASE_URL = process.env.OMNIROUTE_BASE_URL || "http://proxy-ai.home";
const API_KEY = process.env.OMNIROUTE_API_KEY;
if (!API_KEY) {
console.error("OMNIROUTE_API_KEY is not set in the environment.");
process.exit(1);
}
const server = new McpServer({ name: "omniroute-search", version: "1.0.0" });
server.registerTool(
"search",
{
description: "Web/news search via OmniRoute's /v1/search endpoint.",
inputSchema: { query: z.string().describe("Search query") },
},
async ({ query }) => {
const res = await fetch(`${BASE_URL}/v1/search`, {
method: "POST",
headers: { "Content-Type": "application/json", Authorization: `Bearer ${API_KEY}` },
body: JSON.stringify({ query }),
});
const text = await res.text();
if (!res.ok) return { content: [{ type: "text", text: `HTTP ${res.status}: ${text}` }], isError: true };
return { content: [{ type: "text", text }] };
}
);
await server.connect(new StdioServerTransport());
```
Register it in `~/.qwen/settings.json`:
```json
{
"mcpServers": {
"omniroute-search": { "command": "node", "args": ["<path-to>/index.mjs"] }
},
"tools": { "webSearch": { "enabled": false } }
}
```
It reuses the same `OMNIROUTE_API_KEY` env var as the model providers above — the API key needs search permission in OmniRoute, not just chat-completions.
**Non-interactive mode (`qwen -p ...`) needs this tool explicitly allow-listed.** MCP tools require interactive confirmation by default; `--approval-mode auto` alone doesn't bypass that for a non-interactive run — pass `--allowed-tools mcp__omniroute-search__search` (or `-y` for full YOLO) alongside `-p`, or the search call never reaches the classifier at all and silently no-ops. Confirmed live: without the allow-list, only the tool calls the CLI's non-interactive gate lets through end up as classifier requests.
## Auto Mode tuning
Auto Mode's action classifier calls `fastModel`, now the main model, so it can queue behind a heavy generation. Give it real timeout headroom rather than trusting OmniRoute's default. And since the gateway is a single trusted local endpoint, it's reasonable to pre-approve requests to it rather than confirm every call:
```json
{
"permissions": {
"autoMode": {
"classifier": { "timeouts": { "stage1Ms": 600000 } },
"hints": { "allow": ["Requests to proxy-ai.home, my own local omniroute model proxy"] }
}
}
}
```
`hints.allow` entries are free-text descriptions the classifier matches against, not exact strings — capped at 150 entries/200 chars each.
The main model's provider connection already carries the long per-connection timeout (`providerSpecificData.timeoutMs`, see [gateway → Timeouts](../gateway.md#timeouts)), which now covers classifier calls too.
Everything else in `~/.qwen/settings.json` (`hooks`, `security.auth`'s underlying tooling, editor prefs) is per-machine, not part of pointing at this stack — don't copy it wholesale between machines.