chore: prefer pyproject.toml over requirements.txt

.github/workflows/ruff.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install -U pip
-          pip install -r requirements.txt
+          pip install -e ".[dev]"
       - name: Lint and check formatting with ruff
         run: |
           ruff check .

.github/workflows/tests.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install -U pip
-          pip install -r requirements.txt
+          pip install -e ".[dev]"
           pip install ".[test]"
       - name: Run all tests
         run: |

claude-agent-sdk/README.md

@@ -95,7 +95,7 @@ source .venv/bin/activate  # for Windows OS, .\.venv\Scripts\Activate instead sh
 #### Install dependencies
 
 ```sh
-pip install -r requirements.txt
+pip install -e ".[dev]"
 ```
 
 ## Providers

openai-agents-sdk/README.md

@@ -95,7 +95,7 @@ source .venv/bin/activate  # for Windows OS, .\.venv\Scripts\Activate instead sh
 #### Install dependencies
 
 ```sh
-pip install -r requirements.txt
+pip install -e ".[dev]"
 ```
 
 ## Providers

pydantic-ai/README.md

@@ -95,7 +95,7 @@ source .venv/bin/activate  # for Windows OS, .\.venv\Scripts\Activate instead sh
 #### Install dependencies
 
 ```sh
-pip install -r requirements.txt
+pip install -e ".[dev]"
 ```
 
 ## Providers