chore: init

.dockerignore

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+.env
+Dockerfile
+.dockerignore
+.git
+.gitignore
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+.venv/
+
+# Web
+node_modules
+npm-debug.log
+.next
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Project specific
+conf.yaml
+web/
+docs/
+examples/
+assets/
+tests/
+*.log

.gitignore

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+# OS generated files
+.DS_Store
+*.local
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Virtual environments
+.venv
+venv/
+
+# Environment variables
+.env
+
+# Configuration files
+config.yaml
+
+# IDE
+.idea/
+
+# Coverage report
+coverage.xml
+coverage/

LICENSE

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+MIT License
+
+Copyright (c) 2026 Bytedance Ltd. and/or its affiliates
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# 🦌 DeerFlow - v2
+
+> Originated from Open Source, give back to Open Source.
+
+## License
+
+This project is open source and available under the [MIT License](./LICENSE).
+
+## Acknowledgments
+
+DeerFlow is built upon the incredible work of the open-source community. We are deeply grateful to all the projects and contributors whose efforts have made DeerFlow possible. Truly, we stand on the shoulders of giants.
+
+We would like to extend our sincere appreciation to the following projects for their invaluable contributions:
+
+- **[LangChain](https://github.com/langchain-ai/langchain)**: Their exceptional framework powers our LLM interactions and chains, enabling seamless integration and functionality.
+- **[LangGraph](https://github.com/langchain-ai/langgraph)**: Their innovative approach to multi-agent orchestration has been instrumental in enabling DeerFlow's sophisticated workflows.
+
+These projects exemplify the transformative power of open-source collaboration, and we are proud to build upon their foundations.
+
+### Key Contributors
+
+A heartfelt thank you goes out to the core authors of `DeerFlow`, whose vision, passion, and dedication have brought this project to life:
+
+- **[Daniel Walnut](https://github.com/hetaoBackend/)**
+- **[Henry Li](https://github.com/magiccube/)**
+
+Your unwavering commitment and expertise have been the driving force behind DeerFlow's success. We are honored to have you at the helm of this journey.
+
+## Star History
+
+[![Star History Chart](https://api.star-history.com/svg?repos=bytedance/deer-flow&type=Date)](https://star-history.com/#bytedance/deer-flow&Date)

config.example.yaml

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+# Configuration for the DeerFlow application
+#
+# Guidelines:
+# - The default path of this configuration file is `config.yaml` in the CWD (Current Working Directory) or the parent directory of the CWD.
+#   How ever you can change it using the `DEER_FLOW_CONFIG_PATH` environment variable.
+# - Environment variables are available for all field values. Example: `api_key: $OPENAI_API_KEY`
+# - Provider path is a string that looks like "package_name.sub_package_name.module_name:class_name/variable_name".
+
+models:
+  - name: doubao-seed-1.8
+    display_name: Doubao 1.8
+    use: langchain_deepseek:ChatDeepSeek
+    model: doubao-seed-1-8-251228
+    api_base: https://ark.cn-beijing.volces.com/api/v3
+    api_key: $ARK_API_KEY
+    supports_thinking: true
+    when_thinking_enabled:
+      extra_body:
+        thinking:
+          type: enabled
+  - name: gpt-5
+    display_name: GPT-5
+    use: langchain_openai:ChatOpenAI
+    model: gpt-5-251228
+    api_base: https://api.openai.com/v1
+    api_key: $OPENAI_API_KEY
+    supports_thinking: true
+
+tool_groups:
+  - name: web
+  - name: file:read
+  - name: file:write
+  - name: bash
+
+tools:
+  - name: web_search
+    group: web
+    use: src.community.tavily.tools:web_search_tool
+    max_results: 5
+
+  - name: web_fetch
+    group: web
+    use: src.community.jina_ai.tools:web_fetch_tool
+    timeout: 10
+
+  - name: ls
+    group: file:read
+    use: src.sandbox.tools:ls_tool
+
+  - name: read_file
+    group: file:read
+    use: src.sandbox.tools:read_file_tool
+
+  - name: write_file
+    group: file:write
+    use: src.sandbox.tools:write_file_tool
+
+  - name: str_replace
+    group: file:write
+    use: src.sandbox.tools:str_replace_tool
+
+  - name: bash
+    group: bash
+    use: src.sandbox.tools:bash_tool
+sandbox:
+  use: src.sandbox.local:LocalSandboxProvider