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‎.github/actions/build/action.yml‎

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workspace_path:
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description: 'Path to the package to build.'
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required: true
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outputs:
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package-hashes:
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description: "base64-encoded sha256 hashes of distribution files"
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value: ${{ steps.package-hashes.outputs.package-hashes }}
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runs:
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using: composite
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steps:
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- name: Build distribution files
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shell: bash
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run: make -C ${{ inputs.workspace_path }} build
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- name: Hash build files for provenance
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id: package-hashes
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shell: bash
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working-directory: ${{ inputs.workspace_path }}/dist
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run: |
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echo "package-hashes=$(sha256sum * | base64 -w0)" >> "$GITHUB_OUTPUT"

‎.github/workflows/ci.yml‎

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runs-on: ubuntu-latest
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strategy:
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matrix:
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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- uses: actions/checkout@v4
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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- uses: actions/checkout@v4
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runs-on: ubuntu-latest
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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strategy:
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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- uses: actions/checkout@v4
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runs-on: ubuntu-latest
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strategy:
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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- uses: actions/checkout@v4
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strategy:
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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- uses: actions/checkout@v4
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runs-on: ubuntu-latest
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strategy:
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
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python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
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- uses: actions/checkout@v4

‎.github/workflows/release-please.yml‎

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needs: ['release-please']
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permissions:
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id-token: write # Needed for OIDC to get release secrets from AWS.
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attestations: write # Needed for actions/attest.
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if: ${{ needs.release-please.outputs.package-server-ai-released == 'true' }}
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outputs:
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package-hashes: ${{ steps.build.outputs.package-hashes }}
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steps:
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- uses: actions/checkout@v4
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with:
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fetch-depth: 0
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with:
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with:
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workspace_path: packages/sdk/server-ai
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- name: Attest build provenance
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uses: actions/attest@v4
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with:
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subject-path: 'packages/sdk/server-ai/dist/*'
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- uses: launchdarkly/gh-actions/actions/release-secrets@release-secrets-v1.2.0
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name: 'Get PyPI token'
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with:
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needs: ['release-please']
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id-token: write # Needed for OIDC to get release secrets from AWS.
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attestations: write # Needed for actions/attest.
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if: ${{ needs.release-please.outputs.package-server-ai-langchain-released == 'true' }}
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outputs:
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package-hashes: ${{ steps.build.outputs.package-hashes }}
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- uses: actions/checkout@v4
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with:
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fetch-depth: 0
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with:
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workspace_path: packages/ai-providers/server-ai-langchain
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- name: Attest build provenance
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uses: actions/attest@v4
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with:
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subject-path: 'packages/ai-providers/server-ai-langchain/dist/*'
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- uses: launchdarkly/gh-actions/actions/release-secrets@release-secrets-v1.2.0
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name: 'Get PyPI token'
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with:
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- uses: launchdarkly/gh-actions/actions/release-secrets@release-secrets-v1.2.0
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if: ${{ inputs.dry_run != true }}
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if: ${{ format('{0}', inputs.dry_run) != 'true' }}
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name: 'Get PyPI token'
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with:
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aws_assume_role: ${{ vars.AWS_ROLE_ARN }}
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ssm_parameter_pairs: '/production/common/releasing/pypi/token = PYPI_AUTH_TOKEN'
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- name: Publish to PyPI
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if: ${{ inputs.dry_run != true }}
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if: ${{ format('{0}', inputs.dry_run) != 'true' }}
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uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
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password: ${{ env.PYPI_AUTH_TOKEN }}
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packages-dir: ${{ inputs.workspace_path }}/dist/
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release-server-ai-provenance:
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needs: ['release-please', 'release-server-ai']
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if: ${{ needs.release-please.outputs.package-server-ai-released == 'true' }}
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permissions:
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actions: read # Needed for detecting the GitHub Actions environment.
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id-token: write # Needed for provenance signing.
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contents: write # Needed for uploading assets to the release.
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uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v2.0.0
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with:
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base64-subjects: "${{ needs.release-server-ai.outputs.package-hashes }}"
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upload-assets: true
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upload-tag-name: ${{ needs.release-please.outputs.package-server-ai-tag-name }}
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release-server-ai-langchain-provenance:
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needs: ['release-please', 'release-server-ai-langchain']
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if: ${{ needs.release-please.outputs.package-server-ai-langchain-released == 'true' }}
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permissions:
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actions: read # Needed for detecting the GitHub Actions environment.
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id-token: write # Needed for provenance signing.
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contents: write # Needed for uploading assets to the release.
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uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@5a775b367a56d5bd118a224a811bba288150a563 # v2.0.0
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with:
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base64-subjects: "${{ needs.release-server-ai-langchain.outputs.package-hashes }}"
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upload-assets: true
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upload-tag-name: ${{ needs.release-please.outputs.package-server-ai-langchain-tag-name }}
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runs-on: ubuntu-latest
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needs: ['release-please']
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permissions:
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id-token: write # Needed for OIDC to get release secrets from AWS.
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attestations: write # Needed for actions/attest.
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if: ${{ needs.release-please.outputs.package-server-ai-openai-released == 'true' }}
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package-hashes: ${{ steps.build.outputs.package-hashes }}
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fetch-depth: 0
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uses: actions/attest@v4
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subject-path: 'packages/ai-providers/server-ai-openai/dist/*'
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- uses: launchdarkly/gh-actions/actions/release-secrets@release-secrets-v1.2.0
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with:
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packages-dir: packages/ai-providers/server-ai-openai/dist/
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needs: ['release-please', 'release-server-ai-openai']
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if: ${{ needs.release-please.outputs.package-server-ai-openai-released == 'true' }}
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permissions:
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actions: read # Needed for detecting the GitHub Actions environment.
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id-token: write # Needed for provenance signing.
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contents: write # Needed for uploading assets to the release.
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uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v2.0.0
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with:
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base64-subjects: "${{ needs.release-server-ai-openai.outputs.package-hashes }}"
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upload-assets: true
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upload-tag-name: ${{ needs.release-please.outputs.package-server-ai-openai-tag-name }}
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id-token: write # Needed for OIDC to get release secrets from AWS.
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attestations: write # Needed for actions/attest.
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if: ${{ needs.release-please.outputs.package-server-ai-optimization-released == 'true' }}
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package-hashes: ${{ steps.build.outputs.package-hashes }}
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subject-path: 'packages/optimization/dist/*'
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needs: ['release-please', 'release-server-ai-optimization']
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if: ${{ needs.release-please.outputs.package-server-ai-optimization-released == 'true' }}
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permissions:
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actions: read # Needed for detecting the GitHub Actions environment.
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‎.github/workflows/stale.yml‎

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name: "Close stale issues and PRs"
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on:
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# Happen once per day at 1:30 AM
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- cron: "30 1 * * *"
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permissions:
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issues: write
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pull-requests: write
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‎.release-please-manifest.json‎

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{
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"packages/sdk/server-ai": "0.16.1",
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"packages/ai-providers/server-ai-langchain": "0.3.2",
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"packages/ai-providers/server-ai-openai": "0.2.1"
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"packages/sdk/server-ai": "0.18.0",
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"packages/ai-providers/server-ai-langchain": "0.5.0",
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"packages/ai-providers/server-ai-openai": "0.4.0",
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"packages/optimization": "0.1.0"
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}

‎README.md‎

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| Package | PyPI | README |
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| ------- | ---- | ------ |
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| [launchdarkly-server-sdk-ai](packages/sdk/server-ai) | [![PyPI](https://img.shields.io/pypi/v/launchdarkly-server-sdk-ai.svg)](https://pypi.org/project/launchdarkly-server-sdk-ai/) | [README](packages/sdk/server-ai/README.md) |
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| [launchdarkly-server-sdk-ai-optimization](packages/optimization) | [![PyPI](https://img.shields.io/pypi/v/launchdarkly-server-sdk-ai-optimization.svg)](https://pypi.org/project/launchdarkly-server-sdk-ai-optimization/) | [README](packages/optimization/README.md) |
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| AI Provider Packages | PyPI | README |
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| -------------------- | ---- | ------ |

‎packages/ai-providers/server-ai-langchain/CHANGELOG.md‎

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# Changelog
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All notable changes to the LaunchDarkly Python AI LangChain provider package will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
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## [0.5.0](https://github.com/launchdarkly/python-server-sdk-ai/compare/launchdarkly-server-sdk-ai-langchain-0.4.1...launchdarkly-server-sdk-ai-langchain-0.5.0) (2026-04-21)
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### Features
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* Updated to use per-execution tracker lifecycle via `create_tracker()` instead of static tracker instances
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* Renamed graph metrics method from `track_latency()` to `track_duration()` for consistency
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* Moved graph_key configuration from graph tracker instantiation to node tracker initialization
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* Removed graph_key parameter from node-level tracker methods as it is now set during tracker creation
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### Dependencies
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* Updated for compatibility with `launchdarkly-server-sdk-ai` 0.18.0
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## [0.4.1](https://github.com/launchdarkly/python-server-sdk-ai/compare/launchdarkly-server-sdk-ai-langchain-0.4.0...launchdarkly-server-sdk-ai-langchain-0.4.1) (2026-04-07)
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### Bug Fixes
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* Fixes agent graph tool calls in fanned out graphs ([#123](https://github.com/launchdarkly/python-server-sdk-ai/issues/123)) ([c140410](https://github.com/launchdarkly/python-server-sdk-ai/commit/c14041090643d1261881343fdd70b4079997b773))
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## [0.4.0](https://github.com/launchdarkly/python-server-sdk-ai/compare/launchdarkly-server-sdk-ai-langchain-0.3.2...launchdarkly-server-sdk-ai-langchain-0.4.0) (2026-04-02)
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### ⚠ BREAKING CHANGES
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* Bump minimum LangChain version to 1.0.0
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* Restructure provider factory and support additional create methods ([#102](https://github.com/launchdarkly/python-server-sdk-ai/issues/102))
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* Extract shared utilities to langchain_helper
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### Features
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* Add LangGraphAgentGraphRunner ([56ce0fd](https://github.com/launchdarkly/python-server-sdk-ai/commit/56ce0fd63b4301b58f33c17c55c4ecd47e9f8559))
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* Extract shared utilities to langchain_helper ([453c71c](https://github.com/launchdarkly/python-server-sdk-ai/commit/453c71c84adcc6b8a3e316a98907dcb511bc9d41))
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* Add get_ai_usage_from_response to langchain_helper ([4fab18f](https://github.com/launchdarkly/python-server-sdk-ai/commit/4fab18fa62375b6c97cb12a89225805c81ca4ee8))
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* Add get_tool_calls_from_response and sum_token_usage_from_messages to langchain_helper ([4fab18f](https://github.com/launchdarkly/python-server-sdk-ai/commit/4fab18fa62375b6c97cb12a89225805c81ca4ee8))
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* Drop support for python 3.9 ([#114](https://github.com/launchdarkly/python-server-sdk-ai/issues/114)) ([dc592c5](https://github.com/launchdarkly/python-server-sdk-ai/commit/dc592c5a2e2bf3bf679af14a9aa63e81678a69ab))
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### Bug Fixes
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* Use time.perf_counter_ns() for sub-millisecond precision in duration calculations ([4fab18f](https://github.com/launchdarkly/python-server-sdk-ai/commit/4fab18fa62375b6c97cb12a89225805c81ca4ee8))
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## [0.3.2](https://github.com/launchdarkly/python-server-sdk-ai/compare/launchdarkly-server-sdk-ai-langchain-0.3.1...launchdarkly-server-sdk-ai-langchain-0.3.2) (2026-03-16)
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‎packages/ai-providers/server-ai-langchain/README.md‎

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# LaunchDarkly AI SDK - LangChain Provider
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[![PyPI](https://img.shields.io/pypi/v/launchdarkly-server-sdk-ai-langchain.svg)](https://pypi.org/project/launchdarkly-server-sdk-ai-langchain/)
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[![Actions Status](https://github.com/launchdarkly/python-server-sdk-ai/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/launchdarkly/python-server-sdk-ai/actions/workflows/ci.yml)
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[![PyPI](https://img.shields.io/pypi/v/launchdarkly-server-sdk-ai-langchain.svg?maxAge=2592000)](https://pypi.org/project/launchdarkly-server-sdk-ai-langchain/)
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[![PyPI](https://img.shields.io/pypi/pyversions/launchdarkly-server-sdk-ai-langchain.svg)](https://pypi.org/project/launchdarkly-server-sdk-ai-langchain/)
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> [!CAUTION]
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> This package is in pre-release and not subject to backwards compatibility
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response = await config.tracker.track_metrics_of(
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response = await config.tracker.track_metrics_of_async(
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invoke,
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lambda r: r.metrics
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)

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