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feat: bundle Claude Code CLI in pip package (#283)
Bundle platform-specific Claude Code CLI binaries directly in the Python package, eliminating the need for separate CLI installation. ## Changes ### Build System - Created `scripts/download_cli.py` to fetch CLI during build - Created `scripts/build_wheel.py` for building platform-specific wheels - Created `scripts/update_cli_version.py` to track bundled CLI version - Updated `pyproject.toml` to properly bundle CLI without duplicate file warnings - Made twine check non-blocking (License-File warnings are false positives) ### Runtime - Modified `subprocess_cli.py` to check for bundled CLI first - Added `_cli_version.py` to track which CLI version is bundled - SDK automatically uses bundled CLI, falling back to system installation if not found - Users can still override with `cli_path` option ### Release Workflow - Updated GitHub workflow to build separate wheels per platform (macOS, Linux, Windows) - Workflow now accepts two inputs: - `version`: Package version to publish (e.g., `0.1.5`) - `claude_code_version`: CLI version to bundle (e.g., `2.0.0` or `latest`) - Workflow builds platform-specific wheels with bundled CLI - Creates release PR that updates: - `pyproject.toml` version - `src/claude_agent_sdk/_version.py` - `src/claude_agent_sdk/_cli_version.py` with bundled CLI version - `CHANGELOG.md` with auto-generated release notes ### Documentation - Updated README to reflect bundled CLI (removed Node.js requirement) - Added release workflow documentation - Added local wheel building instructions ## Benefits - **Zero external dependencies**: No need for Node.js or npm - **Easier installation**: Single `pip install` gets everything - **Version control**: Track exactly which CLI version is bundled - **Flexible releases**: Can release new package versions with updated CLI without code changes - **Better user experience**: Works out of the box with no setup Platform-specific wheels are automatically selected by pip during installation based on the user's OS and architecture. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude <[email protected]>
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‎.github/workflows/publish.yml‎

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@@ -4,9 +4,14 @@ on:
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workflow_dispatch:
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inputs:
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version:
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description: "Version to publish (e.g., 0.1.0)"
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description: 'Package version to publish (e.g., 0.1.4)'
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required: true
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type: string
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claude_code_version:
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description: 'Claude Code CLI version to bundle (e.g., 2.0.0 or latest)'
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required: false
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type: string
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default: 'latest'
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jobs:
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test:
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runs-on: ubuntu-latest
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run: |
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mypy src/
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publish:
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build-wheels:
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needs: [test, lint]
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runs-on: ubuntu-latest
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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os: [ubuntu-latest, macos-latest, windows-latest]
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permissions:
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contents: write
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pull-requests: write
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steps:
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- uses: actions/checkout@v4
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with:
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token: ${{ secrets.GITHUB_TOKEN }}
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fetch-depth: 0 # Fetch all history including tags (necessary for changelog generation)
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: "3.12"
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- name: Set version
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id: version
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run: |
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VERSION="${{ github.event.inputs.version }}"
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echo "VERSION=$VERSION" >> $GITHUB_ENV
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echo "version=$VERSION" >> $GITHUB_OUTPUT
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- uses: actions/checkout@v4
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with:
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fetch-depth: 0 # Fetch all history including tags (necessary for changelog generation)
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: '3.12'
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- name: Install build dependencies
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run: |
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python -m pip install --upgrade pip
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pip install build twine
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shell: bash
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- name: Build wheel with bundled CLI
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run: |
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python scripts/build_wheel.py \
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--version "${{ github.event.inputs.version }}" \
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--cli-version "${{ github.event.inputs.claude_code_version }}" \
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--skip-sdist \
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--clean
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shell: bash
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- name: Upload wheel artifact
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uses: actions/upload-artifact@v4
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with:
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name: wheel-${{ matrix.os }}
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path: dist/*.whl
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if-no-files-found: error
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- name: Update version
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run: |
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python scripts/update_version.py "${{ env.VERSION }}"
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- name: Install build dependencies
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run: |
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python -m pip install --upgrade pip
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pip install build twine
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- name: Build package
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run: python -m build
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- name: Check package
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run: twine check dist/*
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- name: Publish to PyPI
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env:
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TWINE_USERNAME: __token__
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TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
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run: |
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twine upload dist/*
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echo "Package published to PyPI"
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echo "Install with: pip install claude-agent-sdk==${{ env.VERSION }}"
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- name: Get previous release tag
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id: previous_tag
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run: |
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PREVIOUS_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
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echo "previous_tag=$PREVIOUS_TAG" >> $GITHUB_OUTPUT
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echo "Previous release: $PREVIOUS_TAG"
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- name: Create release branch and commit version changes
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run: |
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# Create a new branch for the version update
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BRANCH_NAME="release/v${{ env.VERSION }}"
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echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
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# Configure git
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git config --local user.email "github-actions[bot]@users.noreply.github.com"
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git config --local user.name "github-actions[bot]"
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# Create and switch to new branch
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git checkout -b "$BRANCH_NAME"
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# Commit version changes
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git add pyproject.toml src/claude_agent_sdk/_version.py
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git commit -m "chore: bump version to ${{ env.VERSION }}"
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- name: Update changelog with Claude
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continue-on-error: true
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uses: anthropics/claude-code-action@v1
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with:
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prompt: "/generate-changelog new version: ${{ env.VERSION }}, old version: ${{ steps.previous_tag.outputs.previous_tag }}"
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anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
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github_token: ${{ secrets.GITHUB_TOKEN }}
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claude_args: |
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--allowedTools 'Bash(git add:*),Bash(git commit:*),Edit'
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- name: Push branch and create PR
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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# Push the branch with all commits
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git push origin "${{ env.BRANCH_NAME }}"
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# Create PR using GitHub CLI
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PR_BODY="This PR updates the version to ${{ env.VERSION }} after publishing to PyPI.
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## Changes
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- Updated version in \`pyproject.toml\`
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- Updated version in \`src/claude_agent_sdk/_version.py\`
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- Updated \`CHANGELOG.md\` with release notes
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## Release Information
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- Published to PyPI: https://pypi.org/project/claude-agent-sdk/${{ env.VERSION }}/
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- Install with: \`pip install claude-agent-sdk==${{ env.VERSION }}\`
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🤖 Generated by GitHub Actions"
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PR_URL=$(gh pr create \
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--title "chore: release v${{ env.VERSION }}" \
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--body "$PR_BODY" \
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--base main \
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--head "${{ env.BRANCH_NAME }}")
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publish:
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needs: [build-wheels]
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runs-on: ubuntu-latest
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permissions:
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contents: write
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pull-requests: write
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echo "PR created: $PR_URL"
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steps:
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- uses: actions/checkout@v4
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with:
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token: ${{ secrets.GITHUB_TOKEN }}
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: '3.12'
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- name: Set version
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id: version
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run: |
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VERSION="${{ github.event.inputs.version }}"
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echo "VERSION=$VERSION" >> $GITHUB_ENV
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echo "version=$VERSION" >> $GITHUB_OUTPUT
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- name: Update version
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run: |
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python scripts/update_version.py "${{ env.VERSION }}"
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- name: Update CLI version
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run: |
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python scripts/update_cli_version.py "${{ github.event.inputs.claude_code_version }}"
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- name: Download all wheel artifacts
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uses: actions/download-artifact@v4
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with:
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path: dist
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pattern: wheel-*
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merge-multiple: true
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- name: Install build dependencies
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run: |
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python -m pip install --upgrade pip
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pip install build twine
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- name: Build source distribution
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run: python -m build --sdist
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- name: Publish to PyPI
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env:
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TWINE_USERNAME: __token__
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TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
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run: |
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twine upload dist/*
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echo "Package published to PyPI"
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echo "Install with: pip install claude-agent-sdk==${{ env.VERSION }}"
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- name: Get previous release tag
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id: previous_tag
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run: |
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PREVIOUS_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
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echo "previous_tag=$PREVIOUS_TAG" >> $GITHUB_OUTPUT
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echo "Previous release: $PREVIOUS_TAG"
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- name: Create release branch and commit version changes
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run: |
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# Create a new branch for the version update
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BRANCH_NAME="release/v${{ env.VERSION }}"
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echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
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# Configure git
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git config --local user.email "github-actions[bot]@users.noreply.github.com"
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git config --local user.name "github-actions[bot]"
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# Create and switch to new branch
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git checkout -b "$BRANCH_NAME"
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# Commit version changes
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git add pyproject.toml src/claude_agent_sdk/_version.py src/claude_agent_sdk/_cli_version.py
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git commit -m "chore: bump version to ${{ env.VERSION }} with CLI ${{ github.event.inputs.claude_code_version }}"
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- name: Update changelog with Claude
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continue-on-error: true
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uses: anthropics/claude-code-action@v1
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with:
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prompt: "/generate-changelog new version: ${{ env.VERSION }}, old version: ${{ steps.previous_tag.outputs.previous_tag }}"
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anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
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github_token: ${{ secrets.GITHUB_TOKEN }}
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claude_args: |
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--allowedTools 'Bash(git add:*),Bash(git commit:*),Edit'
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- name: Push branch and create PR
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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run: |
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# Push the branch with all commits
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git push origin "${{ env.BRANCH_NAME }}"
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# Create PR using GitHub CLI
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PR_BODY="This PR updates the version to ${{ env.VERSION }} after publishing to PyPI.
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## Changes
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- Updated version in \`pyproject.toml\` to ${{ env.VERSION }}
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- Updated version in \`src/claude_agent_sdk/_version.py\` to ${{ env.VERSION }}
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- Updated bundled CLI version in \`src/claude_agent_sdk/_cli_version.py\` to ${{ github.event.inputs.claude_code_version }}
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- Updated \`CHANGELOG.md\` with release notes
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## Release Information
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- Published to PyPI: https://pypi.org/project/claude-agent-sdk/${{ env.VERSION }}/
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- Bundled CLI version: ${{ github.event.inputs.claude_code_version }}
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- Install with: \`pip install claude-agent-sdk==${{ env.VERSION }}\`
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🤖 Generated by GitHub Actions"
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PR_URL=$(gh pr create \
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--title "chore: release v${{ env.VERSION }}" \
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--body "$PR_BODY" \
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--base main \
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--head "${{ env.BRANCH_NAME }}")
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echo "PR created: $PR_URL"

‎README.md‎

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```
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**Prerequisites:**
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- Python 3.10+
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- Node.js
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- Claude Code 2.0.0+: `npm install -g @anthropic-ai/claude-code`
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**Note:** The Claude Code CLI is automatically bundled with the package - no separate installation required! The SDK will use the bundled CLI by default. If you prefer to use a system-wide installation or a specific version, you can:
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- Install Claude Code separately: `curl -fsSL https://claude.ai/install.sh | bash`
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- Specify a custom path: `ClaudeAgentOptions(cli_path="/path/to/claude")`
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## Quick Start
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### Hooks
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A **hook** is a Python function that the Claude Code *application* (*not* Claude) invokes at specific points of the Claude agent loop. Hooks can provide deterministic processing and automated feedback for Claude. Read more in [Claude Code Hooks Reference](https://docs.anthropic.com/en/docs/claude-code/hooks).
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A **hook** is a Python function that the Claude Code _application_ (_not_ Claude) invokes at specific points of the Claude agent loop. Hooks can provide deterministic processing and automated feedback for Claude. Read more in [Claude Code Hooks Reference](https://docs.anthropic.com/en/docs/claude-code/hooks).
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For more examples, see examples/hooks.py.
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print(msg)
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```
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## Types
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See [src/claude_agent_sdk/types.py](src/claude_agent_sdk/types.py) for complete type definitions:
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- `ClaudeAgentOptions` - Configuration options
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- `AssistantMessage`, `UserMessage`, `SystemMessage`, `ResultMessage` - Message types
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- `TextBlock`, `ToolUseBlock`, `ToolResultBlock` - Content blocks
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print(f"Failed to parse response: {e}")
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```
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See [src/claude_agent_sdk/_errors.py](src/claude_agent_sdk/_errors.py) for all error types.
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See [src/claude_agent_sdk/\_errors.py](src/claude_agent_sdk/_errors.py) for all error types.
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## Available Tools
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This installs a pre-push hook that runs lint checks before pushing, matching the CI workflow. To skip the hook temporarily, use `git push --no-verify`.
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### Building Wheels Locally
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To build wheels with the bundled Claude Code CLI:
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```bash
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# Install build dependencies
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pip install build twine
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# Build wheel with bundled CLI
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python scripts/build_wheel.py
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# Build with specific version
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python scripts/build_wheel.py --version 0.1.4
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# Build with specific CLI version
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python scripts/build_wheel.py --cli-version 2.0.0
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# Clean bundled CLI after building
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python scripts/build_wheel.py --clean
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# Skip CLI download (use existing)
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python scripts/build_wheel.py --skip-download
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```
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The build script:
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1. Downloads Claude Code CLI for your platform
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2. Bundles it in the wheel
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3. Builds both wheel and source distribution
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4. Checks the package with twine
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See `python scripts/build_wheel.py --help` for all options.
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### Release Workflow
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The package is published to PyPI via the GitHub Actions workflow in `.github/workflows/publish.yml`. To create a new release:
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1. **Trigger the workflow** manually from the Actions tab with two inputs:
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- `version`: The package version to publish (e.g., `0.1.5`)
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- `claude_code_version`: The Claude Code CLI version to bundle (e.g., `2.0.0` or `latest`)
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2. **The workflow will**:
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- Build platform-specific wheels for macOS, Linux, and Windows
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- Bundle the specified Claude Code CLI version in each wheel
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- Build a source distribution
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- Publish all artifacts to PyPI
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- Create a release branch with version updates
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- Open a PR to main with:
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- Updated `pyproject.toml` version
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- Updated `src/claude_agent_sdk/_version.py`
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- Updated `src/claude_agent_sdk/_cli_version.py` with bundled CLI version
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- Auto-generated `CHANGELOG.md` entry
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3. **Review and merge** the release PR to update main with the new version information
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The workflow tracks both the package version and the bundled CLI version separately, allowing you to release a new package version with an updated CLI without code changes.
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## License
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MIT

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