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Shaojin Wen fcefab6df5
fix(core): clear FileReadCache on every history rewrite path (#3810)
* fix(core): clear FileReadCache after microcompaction

Microcompaction (the idle-cleanup pass that runs at the start of every
new user/cron message) replaces old read_file / shell / glob / grep /
edit / write_file tool outputs with a `[Old tool result content cleared]`
placeholder. The FileReadCache, however, still records the prior full
Reads as "seen in this conversation" — so the next ReadFile of an
unchanged file returns the file_unchanged placeholder pointing at bytes
the model can no longer retrieve from history. The result is a Read
that succeeds at the tool layer but delivers no usable content to the
model, which is the failure mode reported in #3805 ("read tool returns
no content in long-running sessions").

This mirrors the existing post-compaction clear in tryCompressChat —
microcompaction has the same "history rewrite invalidates the cache's
'model has seen this' assumption" property, it was just missed when the
cache was wired in.

* fix(core): clear FileReadCache on every history rewrite path

PR1 only patched microcompaction, but a multi-round audit found four
more entry points that rewrite history without clearing the cache,
producing the same `file_unchanged` placeholder vs. missing-content
mismatch. Each is fixed in the same minimal way (clear() at the call
site) and covered by a regression test:

- GeminiClient.setHistory     — /restore checkpoint, /load_history
- GeminiClient.truncateHistory — rewind in AppContainer
- GeminiClient.resetChat       — public API; clearCommand happens to
  clear the cache via startNewSession beforehand, but other callers
  have no such guarantee
- stripOrphanedUserEntriesFromHistory — Retry path drops trailing user
  entries that may include read_file functionResponses

Also tightened the microcompaction comment ("compactable tool outputs"
instead of an enumerated list, since the source of truth is
microcompact.COMPACTABLE_TOOLS) and removed caller references per the
codebase comment style.

Reverse-tested every new clear() by commenting it out and confirming
the matching regression test fails.

* test(core): integration test for FileReadCache + history rewrite

End-to-end tests using the real ReadFileTool, real FileReadCache,
real microcompactHistory, and a real on-disk file. Three cases:

1. Without a cache clear after microcompact, the second Read of an
   unchanged file returns the file_unchanged placeholder while the
   prior content has already been wiped from history. Demonstrates
   the failure mode this PR fixes.
2. After an explicit cache.clear(), the second Read re-emits the
   real bytes. Demonstrates that the fix works.
3. When microcompact removes every prior read of a file, the
   placeholder leaves zero recoverable bytes — the model literally
   cannot find the content anywhere it can reach.

These complement the existing unit tests in client.test.ts (which
verify the call-site wiring) by proving the end-to-end behaviour
through the real code paths, without mocks.

* chore(core): add traceable debug log for every FileReadCache clear

Per review feedback: the new clear() call sites were silent, leaving
no breadcrumb in production debug streams when the cache is dropped.
Adds a `[FILE_READ_CACHE] clear after <reason>` log at every clear
site (5 new + 1 pre-existing in tryCompressChat) so operators can
grep one prefix and see why the cache was invalidated.

* chore(core): refine truncateHistory cache clear + extract test helper

Per review feedback (deepseek-v4-pro):

1. truncateHistory now skips the cache clear when keepCount >=
   prevLen, since a no-op truncate leaves the cache valid against the
   unchanged history. Adds a regression test covering both
   keepCount==prevLen and keepCount>prevLen.

2. The 6 cache-spy test cases each repeated the same 4-line mock
   setup. Extract a `mockFileReadCacheClear()` helper so future
   changes to the FileReadCache mock surface only need one edit.

Both are quality-of-implementation tweaks; the underlying fix is
unchanged.

* perf(core): use O(1) getHistoryLength in truncateHistory

Per Copilot review feedback: the previous commit's no-op detection in
truncateHistory called this.getChat().getHistory().length, but
GeminiChat.getHistory() does a structuredClone of the entire history
on every call (line 770 of geminiChat.ts) — paying an O(history)
clone purely to read .length. In long-running sessions with hundreds
of entries this is a meaningful regression.

Adds GeminiChat.getHistoryLength(): O(1), no clone. truncateHistory
switches to it. The behaviour (skip clear when keepCount >= prevLen)
is unchanged.

Also adds:
- Unit tests for GeminiChat.getHistoryLength (empty, after addHistory,
  parity with getHistory().length).
- A regression test asserting truncateHistory calls getHistoryLength
  and NOT getHistory, locking in the perf fix against future drift.

* fix(core): close NaN hole + use public ReadFileTool API in tests

Two issues from copilot review:

1. NaN edge case in truncateHistory cache invalidation. The
   "did anything actually change?" check was `keepCount < prevLen`,
   but `Array.slice(0, NaN)` returns [] (history wiped) while
   `NaN < prevLen` is false. That sequence would wipe the chat but
   leave the FileReadCache claiming the model has seen the prior
   reads — exactly the file_unchanged placeholder bug this PR is
   closing. Switched the check to compare actual post-truncate length
   (`newLen < prevLen`), which correctly invalidates whenever entries
   were removed regardless of how `keepCount` was malformed. Added
   a NaN regression test.

2. The integration test cast `tool` to `unknown` to reach the
   protected `createInvocation()` method. Switched to the public
   `tool.buildAndExecute(params, signal)` API so the test exercises
   the same surface real callers use, including build-time schema
   validation.
2026-05-04 22:42:06 +08:00
.github feat(sdk-python): add PyPI release workflow (#3685) 2026-05-04 21:07:21 +08:00
.husky Sync upstream Gemini-CLI v0.8.2 (#838) 2025-10-23 09:27:04 +08:00
.qwen feat(skills): add tmux-real-user-testing skill for readable TUI test logs (#3577) 2026-04-29 11:19:00 +08:00
.vscode Merge branch 'main' into feat/sandbox-config-improvements 2026-03-06 14:38:39 +08:00
docs feat(telemetry): define HTTP OTLP endpoint behavior and signal routing (#3779) 2026-05-01 22:47:01 +08:00
docs-site feat: update docs 2025-12-15 09:47:03 +08:00
eslint-rules pre-release commit 2025-07-22 23:26:01 +08:00
integration-tests fix(test): restore abort-and-lifecycle stdin-close test to pre-#3723 version (#3777) 2026-05-02 21:39:43 +08:00
packages fix(core): clear FileReadCache on every history rewrite path (#3810) 2026-05-04 22:42:06 +08:00
scripts feat(sdk-python): add PyPI release workflow (#3685) 2026-05-04 21:07:21 +08:00
.dockerignore fix(cli): skip stdin read for ACP mode 2026-03-27 11:47:01 +00:00
.editorconfig pre-release commit 2025-07-22 23:26:01 +08:00
.gitattributes pre-release commit 2025-07-22 23:26:01 +08:00
.gitignore Feat/openrouter auth (#3576) 2026-04-27 14:47:44 +08:00
.npmrc chore: remove google registry 2025-08-08 20:45:54 +08:00
.nvmrc chore: Expand node version test matrix (#2700) 2025-07-21 16:33:54 -07:00
.prettierignore Merge branch 'main' into feat/add-vscode-settings-json-schema 2026-03-03 11:21:57 +08:00
.prettierrc.json pre-release commit 2025-07-22 23:26:01 +08:00
.yamllint.yml Sync upstream Gemini-CLI v0.8.2 (#838) 2025-10-23 09:27:04 +08:00
AGENTS.md feat(vscode): expose /skills as slash command with secondary picker (#2548) 2026-04-24 23:28:53 +08:00
CONTRIBUTING.md docs: add Screenshots/Video Demo section to PR template 2026-03-20 16:59:53 +08:00
Dockerfile refactor: Extract web-templates package and unify build/pack workflow 2026-02-26 21:02:46 +08:00
esbuild.config.js feat: add wasm build config (#2985) 2026-04-09 14:21:00 +08:00
eslint.config.js feat(cli): add API preconnect to reduce first-call latency (#3318) 2026-04-27 06:54:55 +08:00
LICENSE Sync upstream Gemini-CLI v0.8.2 (#838) 2025-10-23 09:27:04 +08:00
Makefile feat: update docs 2025-12-22 21:11:33 +08:00
package-lock.json feat(sdk-python): add PyPI release workflow (#3685) 2026-05-04 21:07:21 +08:00
package.json feat(sdk-python): add PyPI release workflow (#3685) 2026-05-04 21:07:21 +08:00
README.md feat(SDK) Add Python SDK implementation for #3010 (#3494) 2026-04-25 07:02:58 +08:00
SECURITY.md fix: update security vulnerability reporting channel 2026-02-24 14:22:47 +08:00
tsconfig.json # 🚀 Sync Gemini CLI v0.2.1 - Major Feature Update (#483) 2025-09-01 14:48:55 +08:00
vitest.config.ts test(channels): add comprehensive test suites for channel adapters 2026-03-27 15:26:39 +00:00

npm version License Node.js Version Downloads

QwenLM%2Fqwen-code | Trendshift

An open-source AI agent that lives in your terminal.

中文 | Deutsch | français | 日本語 | Русский | Português (Brasil)

🎉 News

  • 2026-04-15: Qwen OAuth free tier has been discontinued. To continue using Qwen Code, switch to Alibaba Cloud Coding Plan, OpenRouter, Fireworks AI, or bring your own API key. Run qwen auth to configure.

  • 2026-04-13: Qwen OAuth free tier policy update: daily quota adjusted to 100 requests/day (from 1,000).

  • 2026-04-02: Qwen3.6-Plus is now live! Get an API key from Alibaba Cloud ModelStudio to access it through the OpenAI-compatible API.

  • 2026-02-16: Qwen3.5-Plus is now live!

Why Qwen Code?

Qwen Code is an open-source AI agent for the terminal, optimized for Qwen series models. It helps you understand large codebases, automate tedious work, and ship faster.

  • Multi-protocol, flexible providers: use OpenAI / Anthropic / Gemini-compatible APIs, Alibaba Cloud Coding Plan, OpenRouter, Fireworks AI, or bring your own API key.
  • Open-source, co-evolving: both the framework and the Qwen3-Coder model are open-source—and they ship and evolve together.
  • Agentic workflow, feature-rich: rich built-in tools (Skills, SubAgents) for a full agentic workflow and a Claude Code-like experience.
  • Terminal-first, IDE-friendly: built for developers who live in the command line, with optional integration for VS Code, Zed, and JetBrains IDEs.

Installation

Linux / macOS

bash -c "$(curl -fsSL https://qwen-code-assets.oss-cn-hangzhou.aliyuncs.com/installation/install-qwen.sh)"

Windows (Run as Administrator)

Works in both Command Prompt and PowerShell:

powershell -Command "Invoke-WebRequest 'https://qwen-code-assets.oss-cn-hangzhou.aliyuncs.com/installation/install-qwen.bat' -OutFile (Join-Path $env:TEMP 'install-qwen.bat'); & (Join-Path $env:TEMP 'install-qwen.bat')"

Note

: It's recommended to restart your terminal after installation to ensure environment variables take effect.

Manual Installation

Prerequisites

Make sure you have Node.js 20 or later installed. Download it from nodejs.org.

NPM

npm install -g @qwen-code/qwen-code@latest

Homebrew (macOS, Linux)

brew install qwen-code

Quick Start

# Start Qwen Code (interactive)
qwen

# Then, in the session:
/help
/auth

On first use, you'll be prompted to sign in. You can run /auth anytime to switch authentication methods.

Example prompts:

What does this project do?
Explain the codebase structure.
Help me refactor this function.
Generate unit tests for this module.
Click to watch a demo video

🦞 Use Qwen Code for Coding Tasks in Claw

Copy the prompt below and paste it into your agent:

Use Qwen Code as a coding agent. First, fetch and read this skill reference:
https://raw.githubusercontent.com/QwenLM/qwen-code/refs/heads/main/.qwen/skills/qwen-code-claw/SKILL.md
Then follow the instructions inside to install, authenticate, and use Qwen Code via acpx for all coding tasks.

Authentication

Qwen Code supports the following authentication methods:

  • API Key (recommended): use an API key from Alibaba Cloud Model Studio (Beijing / intl) or any supported provider (OpenAI, Anthropic, Google GenAI, and other compatible endpoints).
  • Coding Plan: subscribe to the Alibaba Cloud Coding Plan (Beijing / intl) for a fixed monthly fee with higher quotas.

⚠️ Qwen OAuth was discontinued on April 15, 2026. If you were previously using Qwen OAuth, please switch to one of the methods above. Run qwen and then /auth to reconfigure.

Use an API key to connect to Alibaba Cloud Model Studio or any supported provider. Supports multiple protocols:

  • OpenAI-compatible: Alibaba Cloud ModelStudio, ModelScope, OpenAI, OpenRouter, and other OpenAI-compatible providers
  • Anthropic: Claude models
  • Google GenAI: Gemini models

The recommended way to configure models and providers is by editing ~/.qwen/settings.json (create it if it doesn't exist). This file lets you define all available models, API keys, and default settings in one place.

Quick Setup in 3 Steps

Step 1: Create or edit ~/.qwen/settings.json

Here is a complete example:

{
  "modelProviders": {
    "openai": [
      {
        "id": "qwen3.6-plus",
        "name": "qwen3.6-plus",
        "baseUrl": "https://dashscope.aliyuncs.com/compatible-mode/v1",
        "description": "Qwen3-Coder via Dashscope",
        "envKey": "DASHSCOPE_API_KEY"
      }
    ]
  },
  "env": {
    "DASHSCOPE_API_KEY": "sk-xxxxxxxxxxxxx"
  },
  "security": {
    "auth": {
      "selectedType": "openai"
    }
  },
  "model": {
    "name": "qwen3.6-plus"
  }
}

Step 2: Understand each field

Field What it does
modelProviders Declares which models are available and how to connect to them. Keys like openai, anthropic, gemini represent the API protocol.
modelProviders[].id The model ID sent to the API (e.g. qwen3.6-plus, gpt-4o).
modelProviders[].envKey The name of the environment variable that holds your API key.
modelProviders[].baseUrl The API endpoint URL (required for non-default endpoints).
env A fallback place to store API keys (lowest priority; prefer .env files or export for sensitive keys).
security.auth.selectedType The protocol to use on startup (openai, anthropic, gemini, vertex-ai).
model.name The default model to use when Qwen Code starts.

Step 3: Start Qwen Code — your configuration takes effect automatically:

qwen

Use the /model command at any time to switch between all configured models.

More Examples
Coding Plan (Alibaba Cloud ModelStudio) — fixed monthly fee, higher quotas
{
  "modelProviders": {
    "openai": [
      {
        "id": "qwen3.6-plus",
        "name": "qwen3.6-plus (Coding Plan)",
        "baseUrl": "https://coding.dashscope.aliyuncs.com/v1",
        "description": "qwen3.6-plus from ModelStudio Coding Plan",
        "envKey": "BAILIAN_CODING_PLAN_API_KEY"
      },
      {
        "id": "qwen3.5-plus",
        "name": "qwen3.5-plus (Coding Plan)",
        "baseUrl": "https://coding.dashscope.aliyuncs.com/v1",
        "description": "qwen3.5-plus with thinking enabled from ModelStudio Coding Plan",
        "envKey": "BAILIAN_CODING_PLAN_API_KEY",
        "generationConfig": {
          "extra_body": {
            "enable_thinking": true
          }
        }
      },
      {
        "id": "glm-4.7",
        "name": "glm-4.7 (Coding Plan)",
        "baseUrl": "https://coding.dashscope.aliyuncs.com/v1",
        "description": "glm-4.7 with thinking enabled from ModelStudio Coding Plan",
        "envKey": "BAILIAN_CODING_PLAN_API_KEY",
        "generationConfig": {
          "extra_body": {
            "enable_thinking": true
          }
        }
      },
      {
        "id": "kimi-k2.5",
        "name": "kimi-k2.5 (Coding Plan)",
        "baseUrl": "https://coding.dashscope.aliyuncs.com/v1",
        "description": "kimi-k2.5 with thinking enabled from ModelStudio Coding Plan",
        "envKey": "BAILIAN_CODING_PLAN_API_KEY",
        "generationConfig": {
          "extra_body": {
            "enable_thinking": true
          }
        }
      }
    ]
  },
  "env": {
    "BAILIAN_CODING_PLAN_API_KEY": "sk-xxxxxxxxxxxxx"
  },
  "security": {
    "auth": {
      "selectedType": "openai"
    }
  },
  "model": {
    "name": "qwen3.6-plus"
  }
}

Subscribe to the Coding Plan and get your API key at Alibaba Cloud ModelStudio(Beijing) or Alibaba Cloud ModelStudio(intl).

Multiple providers (OpenAI + Anthropic + Gemini)
{
  "modelProviders": {
    "openai": [
      {
        "id": "gpt-4o",
        "name": "GPT-4o",
        "envKey": "OPENAI_API_KEY",
        "baseUrl": "https://api.openai.com/v1"
      }
    ],
    "anthropic": [
      {
        "id": "claude-sonnet-4-20250514",
        "name": "Claude Sonnet 4",
        "envKey": "ANTHROPIC_API_KEY"
      }
    ],
    "gemini": [
      {
        "id": "gemini-2.5-pro",
        "name": "Gemini 2.5 Pro",
        "envKey": "GEMINI_API_KEY"
      }
    ]
  },
  "env": {
    "OPENAI_API_KEY": "sk-xxxxxxxxxxxxx",
    "ANTHROPIC_API_KEY": "sk-ant-xxxxxxxxxxxxx",
    "GEMINI_API_KEY": "AIzaxxxxxxxxxxxxx"
  },
  "security": {
    "auth": {
      "selectedType": "openai"
    }
  },
  "model": {
    "name": "gpt-4o"
  }
}
Enable thinking mode (for supported models like qwen3.5-plus)
{
  "modelProviders": {
    "openai": [
      {
        "id": "qwen3.5-plus",
        "name": "qwen3.5-plus (thinking)",
        "envKey": "DASHSCOPE_API_KEY",
        "baseUrl": "https://dashscope.aliyuncs.com/compatible-mode/v1",
        "generationConfig": {
          "extra_body": {
            "enable_thinking": true
          }
        }
      }
    ]
  },
  "env": {
    "DASHSCOPE_API_KEY": "sk-xxxxxxxxxxxxx"
  },
  "security": {
    "auth": {
      "selectedType": "openai"
    }
  },
  "model": {
    "name": "qwen3.5-plus"
  }
}

Tip: You can also set API keys via export in your shell or .env files, which take higher priority than settings.jsonenv. See the authentication guide for full details.

Security note: Never commit API keys to version control. The ~/.qwen/settings.json file is in your home directory and should stay private.

Local Model Setup (Ollama / vLLM)

You can also run models locally — no API key or cloud account needed. This is not an authentication method; instead, configure your local model endpoint in ~/.qwen/settings.json using the modelProviders field.

Ollama setup
  1. Install Ollama from ollama.com
  2. Pull a model: ollama pull qwen3:32b
  3. Configure ~/.qwen/settings.json:
{
  "modelProviders": {
    "openai": [
      {
        "id": "qwen3:32b",
        "name": "Qwen3 32B (Ollama)",
        "baseUrl": "http://localhost:11434/v1",
        "description": "Qwen3 32B running locally via Ollama"
      }
    ]
  },
  "security": {
    "auth": {
      "selectedType": "openai"
    }
  },
  "model": {
    "name": "qwen3:32b"
  }
}
vLLM setup
  1. Install vLLM: pip install vllm
  2. Start the server: vllm serve Qwen/Qwen3-32B
  3. Configure ~/.qwen/settings.json:
{
  "modelProviders": {
    "openai": [
      {
        "id": "Qwen/Qwen3-32B",
        "name": "Qwen3 32B (vLLM)",
        "baseUrl": "http://localhost:8000/v1",
        "description": "Qwen3 32B running locally via vLLM"
      }
    ]
  },
  "security": {
    "auth": {
      "selectedType": "openai"
    }
  },
  "model": {
    "name": "Qwen/Qwen3-32B"
  }
}

Usage

As an open-source terminal agent, you can use Qwen Code in four primary ways:

  1. Interactive mode (terminal UI)
  2. Headless mode (scripts, CI)
  3. IDE integration (VS Code, Zed)
  4. SDKs (TypeScript, Python, Java)

Interactive mode

cd your-project/
qwen

Run qwen in your project folder to launch the interactive terminal UI. Use @ to reference local files (for example @src/main.ts).

Headless mode

cd your-project/
qwen -p "your question"

Use -p to run Qwen Code without the interactive UI—ideal for scripts, automation, and CI/CD. Learn more: Headless mode.

IDE integration

Use Qwen Code inside your editor (VS Code, Zed, and JetBrains IDEs):

SDKs

Build on top of Qwen Code with the available SDKs:

Python SDK example:

import asyncio

from qwen_code_sdk import is_sdk_result_message, query


async def main() -> None:
    result = query(
        "Summarize the repository layout.",
        {
            "cwd": "/path/to/project",
            "path_to_qwen_executable": "qwen",
        },
    )

    async for message in result:
        if is_sdk_result_message(message):
            print(message["result"])


asyncio.run(main())

Commands & Shortcuts

Session Commands

  • /help - Display available commands
  • /clear - Clear conversation history
  • /compress - Compress history to save tokens
  • /stats - Show current session information
  • /bug - Submit a bug report
  • /exit or /quit - Exit Qwen Code

Keyboard Shortcuts

  • Ctrl+C - Cancel current operation
  • Ctrl+D - Exit (on empty line)
  • Up/Down - Navigate command history

Learn more about Commands

Tip: In YOLO mode (--yolo), vision switching happens automatically without prompts when images are detected. Learn more about Approval Mode

Configuration

Qwen Code can be configured via settings.json, environment variables, and CLI flags.

File Scope Description
~/.qwen/settings.json User (global) Applies to all your Qwen Code sessions. Recommended for modelProviders and env.
.qwen/settings.json Project Applies only when running Qwen Code in this project. Overrides user settings.

The most commonly used top-level fields in settings.json:

Field Description
modelProviders Define available models per protocol (openai, anthropic, gemini, vertex-ai).
env Fallback environment variables (e.g. API keys). Lower priority than shell export and .env files.
security.auth.selectedType The protocol to use on startup (e.g. openai).
model.name The default model to use when Qwen Code starts.

See the Authentication section above for complete settings.json examples, and the settings reference for all available options.

Benchmark Results

Terminal-Bench Performance

Agent Model Accuracy
Qwen Code Qwen3-Coder-480A35 37.5%
Qwen Code Qwen3-Coder-30BA3B 31.3%

Ecosystem

Looking for a graphical interface?

  • AionUi A modern GUI for command-line AI tools including Qwen Code
  • Gemini CLI Desktop A cross-platform desktop/web/mobile UI for Qwen Code

Troubleshooting

If you encounter issues, check the troubleshooting guide.

Common issues:

  • Qwen OAuth free tier was discontinued on 2026-04-15: Qwen OAuth is no longer available. Run qwen/auth and switch to API Key or Coding Plan. See the Authentication section above for setup instructions.

To report a bug from within the CLI, run /bug and include a short title and repro steps.

Connect with Us

Acknowledgments

This project is based on Google Gemini CLI. We acknowledge and appreciate the excellent work of the Gemini CLI team. Our main contribution focuses on parser-level adaptations to better support Qwen-Coder models.