chore: import upstream snapshot with attribution

.github/.release-please-manifest-v1.json

@@ -0,0 +1,3 @@
+{
+  ".": "2.0.0-alpha.1"
+}

.github/.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "2.4.0"
+}

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,75 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## 🔴 Required Information
+*Please ensure all items in this section are completed to allow for efficient
+triaging. Requests without complete information may be rejected / deprioritized.
+If an item is not applicable to you - please mark it as N/A*
+
+**Describe the Bug:**
+A clear and concise description of what the bug is.
+
+**Steps to Reproduce:**
+Please provide a numbered list of steps to reproduce the behavior:
+1. Install '...'
+2. Run '....'
+3. Open '....'
+4. Provide error or stacktrace
+
+**Expected Behavior:**
+A clear and concise description of what you expected to happen.
+
+**Observed Behavior:**
+What actually happened? Include error messages or crash stack traces here.
+
+**Environment Details:**
+
+ - ADK Library Version (pip show google-adk):
+ - Desktop OS:** [e.g., macOS, Linux, Windows]
+ - Python Version (python -V):
+
+**Model Information:**
+
+ - Are you using LiteLLM: Yes/No
+ - Which model is being used: (e.g., gemini-2.5-pro)
+
+---
+
+## 🟡 Optional Information
+*Providing this information greatly speeds up the resolution process.*
+
+**Regression:**
+Did this work in a previous version of ADK? If so, which one?
+
+**Logs:**
+Please attach relevant logs. Wrap them in code blocks (```) or attach a
+text file.
+```text
+// Paste logs here
+```
+
+**Screenshots / Video:**
+If applicable, add screenshots or screen recordings to help explain
+your problem.
+
+**Additional Context:**
+Add any other context about the problem here.
+
+**Minimal Reproduction Code:**
+Please provide a code snippet or a link to a Gist/repo that isolates the issue.
+```python
+// Code snippet here
+```
+
+**How often has this issue occurred?:**
+
+ - Always (100%)
+ - Often (50%+)
+ - Intermittently (<50%)
+ - Once / Rare

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,48 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+** Please make sure you read the contribution guide and file the issues in the right place. **
+[Contribution guide.](https://google.github.io/adk-docs/contributing-guide/)
+
+## 🔴 Required Information
+*Please ensure all items in this section are completed to allow for efficient
+triaging. Requests without complete information may be rejected / deprioritized.
+If an item is not applicable to you - please mark it as N/A*
+
+### Is your feature request related to a specific problem?
+Please describe the problem you are trying to solve. (Ex: "I'm always frustrated
+when I have to manually handle X...")
+
+### Describe the Solution You'd Like
+A clear and concise description of the feature or API change you want.
+Be specific about input/outputs if this involves an API change.
+
+### Impact on your work
+How does this feature impact your work and what are you trying to achieve?
+If this is critical for you, tell us if there is a timeline by when you need
+this feature.
+
+### Willingness to contribute
+Are you interested in implementing this feature yourself or submitting a PR?
+(Yes/No)
+
+---
+
+## 🟡 Recommended Information
+
+### Describe Alternatives You've Considered
+A clear and concise description of any alternative solutions or workarounds
+you've considered and why they didn't work for you.
+
+### Proposed API / Implementation
+If you have ideas on how this should look in code, please share a
+pseudo-code example.
+
+### Additional Context
+Add any other context or screenshots about the feature request here.

.github/header-checker-lint.yml

@@ -0,0 +1,28 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+allowedCopyrightHolders:
+  - 'Google LLC'
+allowedLicenses:
+  - 'Apache-2.0'
+  - 'MIT'
+  - 'BSD-3'
+sourceFileExtensions:
+  - 'ts'
+  - 'js'
+  - 'java'
+  - 'py'
+  - 'yaml'
+  - 'yml'
+ignoreFiles:
+  - 'src/google/adk/cli/browser/**'

.github/pull_request_template.md

@@ -0,0 +1,52 @@
+**Please ensure you have read the [contribution guide](https://github.com/google/adk-python/blob/main/CONTRIBUTING.md) before creating a pull request.**
+
+### Link to Issue or Description of Change
+
+**1. Link to an existing issue (if applicable):**
+
+- Closes: #_issue_number_
+- Related: #_issue_number_
+
+**2. Or, if no issue exists, describe the change:**
+
+_If applicable, please follow the issue templates to provide as much detail as
+possible._
+
+**Problem:**
+_A clear and concise description of what the problem is._
+
+**Solution:**
+_A clear and concise description of what you want to happen and why you choose
+this solution._
+
+### Testing Plan
+
+_Please describe the tests that you ran to verify your changes. This is required
+for all PRs that are not small documentation or typo fixes._
+
+**Unit Tests:**
+
+- [ ] I have added or updated unit tests for my change.
+- [ ] All unit tests pass locally.
+
+_Please include a summary of passed `pytest` results._
+
+**Manual End-to-End (E2E) Tests:**
+
+_Please provide instructions on how to manually test your changes, including any
+necessary setup or configuration. Please provide logs or screenshots to help
+reviewers better understand the fix._
+
+### Checklist
+
+- [ ] I have read the [CONTRIBUTING.md](https://github.com/google/adk-python/blob/main/CONTRIBUTING.md) document.
+- [ ] I have performed a self-review of my own code.
+- [ ] I have commented my code, particularly in hard-to-understand areas.
+- [ ] I have added tests that prove my fix is effective or that my feature works.
+- [ ] New and existing unit tests pass locally with my changes.
+- [ ] I have manually tested my changes end-to-end.
+- [ ] Any dependent changes have been merged and published in downstream modules.
+
+### Additional context
+
+_Add any other context or screenshots about the feature request here._

.github/release-please-config-v1.json

@@ -0,0 +1,64 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "packages": {
+    ".": {
+      "release-type": "python",
+      "versioning": "prerelease",
+      "prerelease": true,
+      "prerelease-type": "alpha",
+      "package-name": "google-adk",
+      "include-component-in-tag": false,
+      "skip-github-release": true,
+      "changelog-path": "CHANGELOG-v2.md",
+      "changelog-sections": [
+        {
+          "type": "feat",
+          "section": "Features"
+        },
+        {
+          "type": "fix",
+          "section": "Bug Fixes"
+        },
+        {
+          "type": "perf",
+          "section": "Performance Improvements"
+        },
+        {
+          "type": "refactor",
+          "section": "Code Refactoring",
+          "hidden": true
+        },
+        {
+          "type": "docs",
+          "section": "Documentation"
+        },
+        {
+          "type": "test",
+          "section": "Tests",
+          "hidden": true
+        },
+        {
+          "type": "build",
+          "section": "Build System",
+          "hidden": true
+        },
+        {
+          "type": "ci",
+          "section": "CI/CD",
+          "hidden": true
+        },
+        {
+          "type": "style",
+          "section": "Styles",
+          "hidden": true
+        },
+        {
+          "type": "chore",
+          "section": "Miscellaneous Chores",
+          "hidden": true
+        }
+      ]
+    }
+  },
+  "last-release-sha": "4af7cbb5c8319208337e18b0a6bc55288b51b0b1"
+}

.github/release-please-config.json

@@ -0,0 +1,61 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "packages": {
+    ".": {
+      "release-type": "python",
+      "package-name": "google-adk",
+      "include-component-in-tag": false,
+      "skip-github-release": true,
+      "changelog-path": "CHANGELOG.md",
+      "changelog-sections": [
+        {
+          "type": "feat",
+          "section": "Features"
+        },
+        {
+          "type": "fix",
+          "section": "Bug Fixes"
+        },
+        {
+          "type": "perf",
+          "section": "Performance Improvements"
+        },
+        {
+          "type": "refactor",
+          "section": "Code Refactoring",
+          "hidden": true
+        },
+        {
+          "type": "docs",
+          "section": "Documentation"
+        },
+        {
+          "type": "test",
+          "section": "Tests",
+          "hidden": true
+        },
+        {
+          "type": "build",
+          "section": "Build System",
+          "hidden": true
+        },
+        {
+          "type": "ci",
+          "section": "CI/CD",
+          "hidden": true
+        },
+        {
+          "type": "style",
+          "section": "Styles",
+          "hidden": true
+        },
+        {
+          "type": "chore",
+          "section": "Miscellaneous Chores",
+          "hidden": true
+        }
+      ]
+    }
+  },
+  "last-release-sha": "44d747ed5eaf543b5b8d22e0088f8a7c7eeee846"
+}

.github/workflows/analyze-releases-for-adk-docs-updates.yml

@@ -0,0 +1,108 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Analyze New Release for ADK Docs Updates
+
+on:
+  # Runs on every new release.
+  release:
+    types: [published]
+  # Manual trigger for testing and retrying.
+  workflow_dispatch:
+    inputs:
+      resume:
+        description: 'Resume from the last failed/interrupted run'
+        required: false
+        type: boolean
+        default: false
+      start_tag:
+        description: 'Older release tag (base), e.g. v1.26.0'
+        required: false
+        type: string
+      end_tag:
+        description: 'Newer release tag (head), e.g. v1.27.0'
+        required: false
+        type: string
+
+jobs:
+  analyze-new-release-for-adk-docs-updates:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      issues: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Load adk-bot SSH Private Key
+        uses: webfactory/ssh-agent@v0.9.1
+        with:
+          ssh-private-key: ${{ secrets.ADK_BOT_SSH_PRIVATE_KEY }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install requests "google-adk[db]"
+
+      - name: Restore session DB from cache
+        if: ${{ github.event.inputs.resume == 'true' }}
+        uses: actions/cache/restore@v4
+        with:
+          path: contributing/samples/adk_team/adk_documentation/adk_release_analyzer/sessions.db
+          key: analyzer-session-db-${{ github.run_id }}-${{ github.run_attempt }}
+          restore-keys: |
+            analyzer-session-db-
+
+      - name: Run Analyzing Script
+        env:
+          GITHUB_TOKEN: ${{ secrets.ADK_TRIAGE_AGENT }}
+          GOOGLE_API_KEY: ${{ secrets.GOOGLE_API_KEY_FOR_DOCS_AGENTS }}
+          GOOGLE_GENAI_USE_VERTEXAI: 0
+          DOC_OWNER: 'google'
+          CODE_OWNER: 'google'
+          DOC_REPO: 'adk-docs'
+          CODE_REPO: 'adk-python'
+          INTERACTIVE: 0
+          PYTHONPATH: contributing/samples/adk_team
+          ANALYZER_RESUME: ${{ github.event.inputs.resume }}
+          ANALYZER_START_TAG: ${{ github.event.inputs.start_tag }}
+          ANALYZER_END_TAG: ${{ github.event.inputs.end_tag }}
+        shell: bash
+        run: |
+          set -euo pipefail
+          args=()
+          if [[ "${ANALYZER_RESUME:-false}" == "true" ]]; then
+            args+=(--resume)
+          fi
+          if [[ -n "${ANALYZER_START_TAG:-}" ]]; then
+            args+=(--start-tag "$ANALYZER_START_TAG")
+          fi
+          if [[ -n "${ANALYZER_END_TAG:-}" ]]; then
+            args+=(--end-tag "$ANALYZER_END_TAG")
+          fi
+          python -m adk_documentation.adk_release_analyzer.main "${args[@]}"
+
+      - name: Save session DB to cache
+        if: always()
+        uses: actions/cache/save@v4
+        with:
+          path: contributing/samples/adk_team/adk_documentation/adk_release_analyzer/sessions.db
+          key: analyzer-session-db-${{ github.run_id }}-${{ github.run_attempt }}

.github/workflows/block-merge.yml

@@ -0,0 +1,31 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Do Not Merge on GitHub
+
+on:
+  pull_request:
+    branches: [main]
+    types: [opened, reopened, synchronize]
+
+jobs:
+  block-merge:
+    if: github.repository == 'google/adk-python'
+    name: maintainers will submit via Copybara
+    runs-on: ubuntu-latest
+    steps:
+      - name: Explain why merging is blocked
+        run: |
+          echo "::error title=GitHub merge is disabled::Do NOT merge this pull request on GitHub. A maintainer will land the change internally, and Copybara will sync it back to this repository automatically."
+          exit 1

.github/workflows/continuous-integration.yml

@@ -0,0 +1,194 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Continuous Integration
+
+on:
+  push:
+    branches: [main, v1]
+    paths:
+      - '**.py'
+      - '.pre-commit-config.yaml'
+      - 'pyproject.toml'
+      - 'tests/**'
+  pull_request:
+    branches: [main, v1]
+    paths:
+      - '**.py'
+      - '.pre-commit-config.yaml'
+      - 'pyproject.toml'
+      - 'tests/**'
+
+permissions:
+  contents: read
+
+jobs:
+  # 1. Code format and linting (Linter)
+  lint:
+    name: Pre-commit Linter
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v6
+
+      - name: Run pre-commit checks
+        uses: pre-commit/action@v3.0.1
+
+  # 2. Static type analysis (Mypy Check with Matrix)
+  # Compares new changes against the target base branch dynamically to support v1.
+  type-check:
+    name: Mypy Check (Python ${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ['3.10', '3.11', '3.12', '3.13']
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+
+      - name: Generate Baseline
+        env:
+          TARGET_BRANCH: ${{ github.base_ref || github.ref_name }}
+        run: |
+          # Switch to target base branch to generate baseline
+          git checkout origin/$TARGET_BRANCH
+
+          git checkout ${{ github.sha }} -- pyproject.toml
+
+          # Install dependencies for target branch
+          uv venv .venv
+          source .venv/bin/activate
+          uv sync --all-extras
+
+          # Run mypy, filter for errors only, remove line numbers, and sort
+          # We ignore exit code (|| true) because we expect errors on baseline
+          uv run mypy . | grep "error:" | sed 's/:\([0-9]\+\):/::/g' | sort > baseline_errors.txt || true
+          echo "Found $(wc -l < baseline_errors.txt) errors on $TARGET_BRANCH."
+
+      - name: Check PR Branch
+        run: |
+          # Switch back to the PR commit
+          git checkout ${{ github.sha }}
+
+          # Re-sync dependencies in case the PR changed them
+          source .venv/bin/activate
+          uv sync --all-extras
+
+          # Run mypy on PR code, apply same processing
+          uv run mypy . | grep "error:" | sed 's/:\([0-9]\+\):/::/g' | sort > pr_errors.txt || true
+          echo "Found $(wc -l < pr_errors.txt) errors on PR branch."
+
+      - name: Compare and Fail on New Errors
+        run: |
+          # 'comm -13' suppresses unique lines in file1 (baseline) and common lines,
+          # leaving only lines unique to file2 (PR) -> The new errors.
+          comm -13 baseline_errors.txt pr_errors.txt > new_errors.txt
+
+          if [ -s new_errors.txt ]; then
+            echo "::error::The following NEW mypy errors were introduced:"
+            cat new_errors.txt
+            exit 1
+          else
+            echo "Great job! No new mypy errors introduced."
+          fi
+
+  # 3a. Unit testing (Unit Tests with Matrix)
+  unit-test:
+    name: Unit Tests (Python ${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+    timeout-minutes: 10
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+
+      - name: Install dependencies
+        run: |
+          uv venv .venv
+          source .venv/bin/activate
+          uv sync --extra test
+
+      - name: Run unit tests with pytest
+        run: |
+          source .venv/bin/activate
+          pytest tests/unittests \
+            -n auto \
+            --ignore=tests/unittests/artifacts/test_artifact_service.py \
+            --ignore=tests/unittests/tools/google_api_tool/test_googleapi_to_openapi_converter.py
+
+  # 3b. Dual-version A2A coverage: This job pins a2a-sdk to 0.3.x and
+  # runs only the A2A-related tests, so the a2a/_compat.py shim stays
+  # verified against both SDK majors.
+  # TODO: Remove this 0.3.x re-run once a2a-sdk 0.3.x support is dropped.
+  unit-test-a2a-v0-3:
+    name: A2A v0.3 Tests (Python ${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+    timeout-minutes: 10
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+
+      - name: Install dependencies
+        run: |
+          uv venv .venv
+          source .venv/bin/activate
+          uv sync --extra test
+
+      - name: Run A2A tests against a2a-sdk v0.3
+        run: |
+          source .venv/bin/activate
+          uv pip install --reinstall-package a2a-sdk 'a2a-sdk>=0.3.4,<0.4'
+          pytest tests/unittests/a2a \
+            tests/unittests/agents/test_remote_a2a_agent.py \
+            tests/unittests/integrations/agent_registry/test_agent_registry.py

.github/workflows/copybara-pr-handler.yml

@@ -0,0 +1,163 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Copybara PR Handler
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'PR number to close (for testing)'
+        required: true
+        type: string
+      commit_sha:
+        description: 'Commit SHA reference (optional, for testing)'
+        required: false
+        type: string
+
+jobs:
+  close-imported-pr:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      issues: write
+      contents: read
+
+    steps:
+      - name: Check for Copybara commits and close PRs
+        uses: actions/github-script@v8
+        with:
+          github-token: ${{ secrets.ADK_TRIAGE_AGENT }}
+          script: |
+            // Check if this is a manual test run
+            const isManualRun = context.eventName === 'workflow_dispatch';
+
+            let prsToClose = [];
+
+            if (isManualRun) {
+              // Manual testing mode
+              const prNumber = parseInt(context.payload.inputs.pr_number);
+              const commitSha = context.payload.inputs.commit_sha || context.sha.substring(0, 7);
+
+              console.log('=== MANUAL TEST MODE ===');
+              console.log(`Testing with PR #${prNumber}, commit ${commitSha}`);
+
+              prsToClose.push({ prNumber, commitSha });
+            } else {
+              // Normal mode: process commits from push event
+              const commits = context.payload.commits || [];
+              console.log(`Found ${commits.length} commit(s) in this push`);
+
+              // Process each commit
+              for (const commit of commits) {
+                const sha = commit.id;
+                const committer = commit.committer.name;
+                const message = commit.message;
+
+                console.log(`\n--- Processing commit ${sha.substring(0, 7)} ---`);
+                console.log(`Committer: ${committer}`);
+
+                // Check if this is a Copybara commit or has a pull request reference
+                const prRegex = /Merges?:?\s+(?:https:\/\/github\.com\/google\/adk-python\/pull\/|#)(\d+)/i;
+                const isCopybara = committer === 'Copybara-Service' ||
+                                   commit.author?.email === 'genai-sdk-bot@google.com' ||
+                                   message.includes('GitOrigin-RevId:') ||
+                                   message.includes('PiperOrigin-RevId:') ||
+                                   prRegex.test(message);
+
+                if (!isCopybara) {
+                  console.log('Not a Copybara commit, skipping');
+                  continue;
+                }
+
+                // Extract PR number from commit message
+                const prMatch = message.match(prRegex);
+
+                if (!prMatch) {
+                  console.log('No PR number found in Copybara commit message');
+                  continue;
+                }
+
+                const prNumber = parseInt(prMatch[1]);
+                const commitSha = sha.substring(0, 7);
+
+                prsToClose.push({ prNumber, commitSha });
+              }
+            }
+
+            // Process PRs to close
+            for (const { prNumber, commitSha } of prsToClose) {
+              console.log(`\n--- Processing PR #${prNumber} ---`);
+
+              // Get PR details to check if it's open
+              let pr;
+              try {
+                pr = await github.rest.pulls.get({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  pull_number: prNumber
+                });
+              } catch (error) {
+                console.log(`PR #${prNumber} not found or inaccessible:`, error.message);
+                continue;
+              }
+
+              // Only close if PR is still open
+              if (pr.data.state !== 'open') {
+                console.log(`PR #${prNumber} is already ${pr.data.state}, skipping`);
+                continue;
+              }
+
+              const author = pr.data.user.login;
+
+              try {
+                // Add comment with commit reference
+                await github.rest.issues.createComment({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: prNumber,
+                  body: `Thank you @${author} for your contribution! 🎉\n\nYour changes have been successfully imported and merged via Copybara in commit ${commitSha}.\n\nClosing this PR as the changes are now in the main branch.`
+                });
+
+                // Add 'merged' label to the PR
+                await github.rest.issues.addLabels({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: prNumber,
+                  labels: ['merged']
+                });
+
+                // Close the PR
+                await github.rest.pulls.update({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  pull_number: prNumber,
+                  state: 'closed'
+                });
+
+                console.log(`Successfully closed PR #${prNumber}`);
+              } catch (error) {
+                console.log(`Error closing PR #${prNumber}:`, error.message);
+              }
+            }
+
+            if (isManualRun) {
+              console.log('\n=== TEST COMPLETED ===');
+            } else {
+              console.log('\n--- Finished processing all commits ---');
+            }

.github/workflows/discussion_answering.yml

@@ -0,0 +1,71 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: ADK Answering Agent for Discussions
+
+on:
+  discussion:
+    types: [created]
+  discussion_comment:
+    types: [created]
+
+permissions:
+  contents: read
+
+jobs:
+  agent-answer-questions:
+    if: >-
+      github.repository == 'google/adk-python' && (
+      (github.event_name == 'discussion' && github.event.discussion.category.name == 'Q&A') ||
+      (github.event_name == 'discussion_comment' && contains(github.event.comment.body, '@adk-bot') && github.event.sender.login != 'adk-bot')
+      )
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Authenticate to Google Cloud
+        id: auth
+        uses: 'google-github-actions/auth@v3'
+        with:
+          credentials_json: '${{ secrets.ADK_GCP_SA_KEY }}'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install google-adk google-cloud-discoveryengine
+
+      - name: Run Answering Script
+        env:
+          GITHUB_TOKEN: ${{ secrets.ADK_TRIAGE_AGENT }}
+          ADK_GCP_SA_KEY: ${{ secrets.ADK_GCP_SA_KEY }}
+          GOOGLE_CLOUD_PROJECT: ${{ secrets.GOOGLE_CLOUD_PROJECT }}
+          GOOGLE_CLOUD_LOCATION: ${{ secrets.GOOGLE_CLOUD_LOCATION }}
+          VERTEXAI_DATASTORE_ID: ${{ secrets.VERTEXAI_DATASTORE_ID }}
+          GEMINI_API_DATASTORE_ID: ${{ secrets.GEMINI_API_DATASTORE_ID }}
+          GOOGLE_GENAI_USE_VERTEXAI: 1
+          OWNER: 'google'
+          REPO: 'adk-python'
+          INTERACTIVE: 0
+          PYTHONPATH: contributing/samples/adk_team
+          DISCUSSION_JSON: ${{ toJson(github.event.discussion) }}
+        run: |
+          python -c "import os; open('/tmp/discussion.json', 'w').write(os.environ['DISCUSSION_JSON'])"
+          python -m adk_answering_agent.main --discussion-file /tmp/discussion.json

.github/workflows/issue-maintenance.yml

@@ -0,0 +1,100 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: "ADK Issue Tracker Maintenance"
+
+on:
+  # Daily background cleanup at 6:00 AM UTC (10 PM PST)
+  schedule:
+    - cron: '0 6 * * *'
+
+  # Allows manual triggering from the Actions console
+  workflow_dispatch:
+    inputs:
+      run_spam_monitor:
+        description: 'Run Issue Monitoring Agent (Spam Sweep)'
+        type: boolean
+        default: true
+      full_scan:
+        description: 'For Issue Monitoring: Run an Initial Full Scan of ALL open issues'
+        type: boolean
+        default: false
+      run_stale_auditor:
+        description: 'Run Stale Issue Auditor Agent'
+        type: boolean
+        default: true
+
+permissions:
+  issues: write
+  contents: read
+
+env:
+  GITHUB_TOKEN: ${{ secrets.ADK_TRIAGE_AGENT }}
+  GOOGLE_API_KEY: ${{ secrets.GOOGLE_API_KEY }}
+  OWNER: ${{ github.repository_owner }}
+  REPO: adk-python
+  CONCURRENCY_LIMIT: 3
+  LLM_MODEL_NAME: "gemini-3.5-flash"
+  PYTHONPATH: contributing/samples/adk_team
+
+jobs:
+  # 1. Sweep for spam, advertising, and invalid issues
+  sweep-spam:
+    if: |
+      github.repository == 'google/adk-python' &&
+      (github.event_name == 'schedule' || github.event.inputs.run_spam_monitor == 'true')
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install requests google-adk python-dotenv
+
+      - name: Run Issue Monitoring Agent (Spam Sweep)
+        env:
+          INITIAL_FULL_SCAN: ${{ github.event.inputs.full_scan == 'true' }}
+        run: python -m adk_issue_monitoring_agent.main
+
+  # 2. Audit inactive issues and nudge/close them
+  audit-stale:
+    if: |
+      github.repository == 'google/adk-python' &&
+      (github.event_name == 'schedule' || github.event.inputs.run_stale_auditor == 'true')
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install requests google-adk python-dateutil
+
+      - name: Run Stale Auditor Agent
+        run: python -m adk_stale_agent.main

.github/workflows/pr-triage.yml

@@ -0,0 +1,78 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: ADK Pull Request Triaging Agent
+
+on:
+  # React within seconds of a PR opening/updating so the owner is assigned
+  # promptly. pull_request_target (not pull_request) is required so the run has
+  # the base-repo token needed to assign on community fork PRs; this workflow
+  # only reads PR metadata via the API and never checks out untrusted PR code.
+  pull_request_target:
+    types: [opened, reopened, synchronize, ready_for_review]
+  schedule:
+    # Backfill every 6 hours in case an event was missed.
+    - cron: '0 */6 * * *'
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'The Pull Request number to triage (leave empty for batch mode)'
+        required: false
+        type: 'string'
+      pr_count:
+        description: 'Number of PRs to process in batch mode (default: 10)'
+        required: false
+        default: '10'
+        type: 'string'
+
+# Never let two runs triage the same PR at once (e.g. rapid pushes); the
+# scheduled backfill still runs under its own group.
+concurrency:
+  group: pr-triage-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: false
+
+jobs:
+  agent-triage-pull-request:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install requests google-adk
+
+      - name: Run Triaging Script
+        env:
+          GITHUB_TOKEN: ${{ secrets.ADK_TRIAGE_AGENT }}
+          GOOGLE_API_KEY: ${{ secrets.GOOGLE_API_KEY }}
+          GOOGLE_GENAI_USE_VERTEXAI: 0
+          OWNER: 'google'
+          REPO: 'adk-python'
+          PULL_REQUEST_NUMBER: ${{ github.event.pull_request.number || github.event.inputs.pr_number || '' }}
+          PR_COUNT_TO_PROCESS: ${{ github.event.inputs.pr_count || '10' }}
+          INTERACTIVE: ${{ vars.PR_TRIAGE_INTERACTIVE }}
+          PYTHONPATH: contributing/samples/adk_team
+        run: python -m adk_pr_triaging_agent.main

.github/workflows/release-cherry-pick.yml

@@ -0,0 +1,74 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Step 3 (optional): Cherry-picks a commit from a base branch (main or v1) into the active release candidate branch.
+# Use this between step 1 and step 4 to include hotfixes in an in-progress release.
+# Note: Does NOT auto-trigger release-please to preserve manual changelog edits.
+name: "Release: Cherry-pick"
+
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: 'Branch line of the release candidate (main or v1)'
+        required: true
+        default: 'main'
+        type: choice
+        options:
+          - main
+          - v1
+      commit_sha:
+        description: 'Commit SHA to cherry-pick'
+        required: true
+
+jobs:
+  cherry-pick:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Determine Branch Configurations
+        id: config
+        run: |
+          BRANCH="${{ inputs.branch }}"
+          if [ "$BRANCH" = "v1" ]; then
+            echo "candidate_branch=release/v1-candidate" >> $GITHUB_OUTPUT
+          else
+            echo "candidate_branch=release/candidate" >> $GITHUB_OUTPUT
+          fi
+
+      - uses: actions/checkout@v6
+        with:
+          ref: ${{ steps.config.outputs.candidate_branch }}
+          fetch-depth: 0
+
+      - name: Configure git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Cherry-pick commit
+        run: |
+          CANDIDATE_BRANCH="${{ steps.config.outputs.candidate_branch }}"
+          echo "Cherry-picking ${INPUTS_COMMIT_SHA} to $CANDIDATE_BRANCH"
+          git cherry-pick ${INPUTS_COMMIT_SHA}
+        env:
+          INPUTS_COMMIT_SHA: ${{ inputs.commit_sha }}
+
+      - name: Push changes
+        run: |
+          CANDIDATE_BRANCH="${{ steps.config.outputs.candidate_branch }}"
+          git push origin "$CANDIDATE_BRANCH"
+          echo "Successfully cherry-picked commit to $CANDIDATE_BRANCH"
+          echo "If you want to regenerate the changelog PR, run the 'Release: Cut' workflow manually"
+          echo "with action='regenerate' and branch='${{ inputs.branch }}'."

.github/workflows/release-cut.yml

@@ -0,0 +1,165 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Unified release manager. Supports:
+# 1. Cutting a new release candidate branch from main or v1.
+# 2. Regenerating/updating the changelog PR on an existing candidate branch.
+name: "Release: Cut"
+
+on:
+  workflow_dispatch:
+    inputs:
+      action:
+        description: 'Action to perform'
+        required: true
+        default: 'cut'
+        type: choice
+        options:
+          - cut
+          - regenerate
+      branch:
+        description: 'Branch to release from (main or v1)'
+        required: true
+        default: 'main'
+        type: choice
+        options:
+          - main
+          - v1
+      commit_sha:
+        description: 'Optional Commit SHA (only used for "cut" action; overrides branch latest)'
+        required: false
+        type: string
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  cut-or-regenerate:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Determine Branch Configurations
+        id: config
+        run: |
+          BRANCH="${{ inputs.branch }}"
+          if [ "$BRANCH" = "v1" ]; then
+            echo "base_ref=v1" >> $GITHUB_OUTPUT
+            echo "candidate_branch=release/v1-candidate" >> $GITHUB_OUTPUT
+            echo "config_file=.github/release-please-config-v1.json" >> $GITHUB_OUTPUT
+            echo "manifest_file=.github/.release-please-manifest-v1.json" >> $GITHUB_OUTPUT
+          else
+            echo "base_ref=main" >> $GITHUB_OUTPUT
+            echo "candidate_branch=release/candidate" >> $GITHUB_OUTPUT
+            echo "config_file=.github/release-please-config.json" >> $GITHUB_OUTPUT
+            echo "manifest_file=.github/.release-please-manifest.json" >> $GITHUB_OUTPUT
+          fi
+
+      # Action: CUT NEW RELEASE
+      - name: Checkout base ref (Cut)
+        if: inputs.action == 'cut'
+        uses: actions/checkout@v6
+        with:
+          ref: ${{ inputs.commit_sha || steps.config.outputs.base_ref }}
+          token: ${{ secrets.RELEASE_PAT }}
+
+      - name: Check for existing candidate branch (Cut)
+        if: inputs.action == 'cut'
+        run: |
+          CANDIDATE_BRANCH="${{ steps.config.outputs.candidate_branch }}"
+          if git ls-remote --exit-code --heads origin "$CANDIDATE_BRANCH" &>/dev/null; then
+            echo "Error: Branch $CANDIDATE_BRANCH already exists."
+            echo "Please finalize or delete the existing release candidate before starting a new one."
+            exit 1
+          fi
+
+      - name: Create and push candidate branch (Cut)
+        if: inputs.action == 'cut'
+        run: |
+          CANDIDATE_BRANCH="${{ steps.config.outputs.candidate_branch }}"
+          git checkout -b "$CANDIDATE_BRANCH"
+          git push origin "$CANDIDATE_BRANCH"
+          echo "Created and pushed branch: $CANDIDATE_BRANCH"
+
+      # Action: REGENERATE EXISTING PR
+      - name: Checkout existing candidate branch (Regenerate)
+        if: inputs.action == 'regenerate'
+        uses: actions/checkout@v6
+        with:
+          ref: ${{ steps.config.outputs.candidate_branch }}
+          token: ${{ secrets.RELEASE_PAT }}
+
+      # Run Release Please
+      - name: Run Release Please
+        id: release_please
+        uses: googleapis/release-please-action@v4
+        with:
+          token: ${{ secrets.RELEASE_PAT }}
+          config-file: ${{ steps.config.outputs.config_file }}
+          manifest-file: ${{ steps.config.outputs.manifest_file }}
+          target-branch: ${{ steps.config.outputs.candidate_branch }}
+
+      # Curate the changelog: clean up and (for large releases) fold the
+      # release-please output, draft a Highlights section on top, commit it back
+      # to the release PR branch, and sync the PR description to match. The
+      # script falls back to an empty Highlights template if drafting fails, so
+      # this step never blocks the release. Guarded on `pr` (not `prs_created`)
+      # so it also runs when release-please updates an existing PR (regenerate).
+      - name: Set up Python
+        if: steps.release_please.outputs.pr != ''
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Install changelog curation dependencies
+        if: steps.release_please.outputs.pr != ''
+        run: pip install --upgrade google-genai
+
+      - name: Curate changelog Highlights
+        if: steps.release_please.outputs.pr != ''
+        # Curation is a nice-to-have layered on top of the release PR; never let
+        # it turn the release run red (e.g. a push race or a transient error).
+        continue-on-error: true
+        env:
+          RELEASE_PR: ${{ steps.release_please.outputs.pr }}
+          GOOGLE_API_KEY: ${{ secrets.GOOGLE_API_KEY }}
+          GOOGLE_GENAI_USE_VERTEXAI: '0'
+          GH_TOKEN: ${{ secrets.RELEASE_PAT }}
+        run: |
+          set -euo pipefail
+          PR_BRANCH=$(echo "$RELEASE_PR" | jq -r '.headBranchName')
+          PR_NUMBER=$(echo "$RELEASE_PR" | jq -r '.number')
+          echo "Curating changelog on release PR #$PR_NUMBER (branch: $PR_BRANCH)"
+          git fetch origin "$PR_BRANCH"
+          git checkout -B "$PR_BRANCH" FETCH_HEAD
+          python scripts/curate_changelog.py --changelog CHANGELOG.md \
+            --section-out /tmp/pr_body.md
+          # Mirror the curated notes into the PR description so reviewers read
+          # the same thing that ships in CHANGELOG.md. Done regardless of whether
+          # the file changed, since the body is regenerated by release-please.
+          if [ -s /tmp/pr_body.md ]; then
+            gh pr edit "$PR_NUMBER" --body-file /tmp/pr_body.md
+          fi
+          if git diff --quiet -- CHANGELOG.md; then
+            echo "No changelog file changes to commit."
+            exit 0
+          fi
+          USER_JSON=$(gh api user)
+          git config user.name "$(echo "$USER_JSON" | jq -r '.login')"
+          git config user.email "$(echo "$USER_JSON" | jq -r '.id')+$(echo "$USER_JSON" | jq -r '.login')@users.noreply.github.com"
+          git add CHANGELOG.md
+          git commit -m "chore: add curated highlights to changelog"
+          # Rebase onto any concurrent PR-branch updates so the push doesn't fail on a stale ref.
+          git pull --rebase origin "$PR_BRANCH"
+          git push origin "$PR_BRANCH"

.github/workflows/release-finalize.yml

@@ -0,0 +1,122 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Triggers automatically when the changelog PR is merged to a candidate branch.
+# Records the last-release-sha for Release Please and renames the branch to release/v{version}.
+name: "Release: Finalize"
+
+on:
+  pull_request:
+    types: [closed]
+    branches:
+      - release/candidate
+      - release/v1-candidate
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  finalize:
+    if: github.event.pull_request.merged == true && github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check for release-please PR
+        id: check
+        env:
+          LABELS: ${{ toJson(github.event.pull_request.labels.*.name) }}
+        run: |
+          if echo "$LABELS" | grep -q "autorelease: pending"; then
+            echo "is_release_pr=true" >> $GITHUB_OUTPUT
+          else
+            echo "Not a release-please PR, skipping"
+            echo "is_release_pr=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Determine Branch Configurations
+        if: steps.check.outputs.is_release_pr == 'true'
+        id: config
+        run: |
+          CANDIDATE_BRANCH="${{ github.event.pull_request.base.ref }}"
+          if [ "$CANDIDATE_BRANCH" = "release/v1-candidate" ]; then
+            echo "base_branch=v1" >> $GITHUB_OUTPUT
+            echo "config_file=.github/release-please-config-v1.json" >> $GITHUB_OUTPUT
+            echo "manifest_file=.github/.release-please-manifest-v1.json" >> $GITHUB_OUTPUT
+          else
+            echo "base_branch=main" >> $GITHUB_OUTPUT
+            echo "config_file=.github/release-please-config.json" >> $GITHUB_OUTPUT
+            echo "manifest_file=.github/.release-please-manifest.json" >> $GITHUB_OUTPUT
+          fi
+
+      - uses: actions/checkout@v6
+        if: steps.check.outputs.is_release_pr == 'true'
+        with:
+          ref: ${{ github.event.pull_request.base.ref }}
+          token: ${{ secrets.RELEASE_PAT }}
+          fetch-depth: 0
+
+      - name: Extract version from manifest
+        if: steps.check.outputs.is_release_pr == 'true'
+        id: version
+        run: |
+          VERSION=$(jq -r '.["."]' "${{ steps.config.outputs.manifest_file }}")
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Extracted version: $VERSION"
+
+      - name: Configure git identity from RELEASE_PAT
+        if: steps.check.outputs.is_release_pr == 'true'
+        env:
+          GH_TOKEN: ${{ secrets.RELEASE_PAT }}
+        run: |
+          USER_JSON=$(gh api user)
+          git config user.name "$(echo "$USER_JSON" | jq -r '.login')"
+          git config user.email "$(echo "$USER_JSON" | jq -r '.id')+$(echo "$USER_JSON" | jq -r '.login')@users.noreply.github.com"
+
+      - name: Record last-release-sha for release-please
+        if: steps.check.outputs.is_release_pr == 'true'
+        run: |
+          BASE_BRANCH="${{ steps.config.outputs.base_branch }}"
+          CONFIG_FILE="${{ steps.config.outputs.config_file }}"
+          CANDIDATE_BRANCH="${{ github.event.pull_request.base.ref }}"
+
+          git fetch origin "$BASE_BRANCH"
+          CUT_SHA=$(git merge-base "origin/$BASE_BRANCH" HEAD)
+          echo "Release was cut from $BASE_BRANCH at: $CUT_SHA"
+
+          jq --arg sha "$CUT_SHA" '. + {"last-release-sha": $sha}' \
+            "$CONFIG_FILE" > tmp.json && mv tmp.json "$CONFIG_FILE"
+
+          git add "$CONFIG_FILE"
+          git commit -m "chore: update last-release-sha for next $BASE_BRANCH release"
+          git push origin "$CANDIDATE_BRANCH"
+
+      - name: Rename candidate to release/v{version}
+        if: steps.check.outputs.is_release_pr == 'true'
+        run: |
+          VERSION="v${STEPS_VERSION_OUTPUTS_VERSION}"
+          CANDIDATE_BRANCH="${{ github.event.pull_request.base.ref }}"
+          git push origin "$CANDIDATE_BRANCH:refs/heads/release/$VERSION" ":$CANDIDATE_BRANCH"
+          echo "Renamed $CANDIDATE_BRANCH to release/$VERSION"
+        env:
+          STEPS_VERSION_OUTPUTS_VERSION: ${{ steps.version.outputs.version }}
+
+      - name: Update PR label to tagged
+        if: steps.check.outputs.is_release_pr == 'true'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh pr edit ${{ github.event.pull_request.number }} \
+            --remove-label "autorelease: pending" \
+            --add-label "autorelease: tagged"
+          echo "Updated PR label to autorelease: tagged"

.github/workflows/release-publish.yml

@@ -0,0 +1,108 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Builds and publishes the package to PyPI from a release/v* branch.
+# Supports both main (v2+) stable releases and v1 pre-releases (with auto PEP 440 version mapping).
+# Creates a merge-back PR to sync changes back to the base branch (main or v1).
+name: "Release: Publish to PyPi"
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  publish:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Validate branch
+        run: |
+          if [[ ! "${GITHUB_REF_NAME}" =~ ^release/v[0-9]+\.[0-9]+\.[0-9]+ ]]; then
+            echo "Error: Must run from a release/v* branch (e.g., release/v0.3.0 or release/v1.35.0-alpha.1)"
+            exit 1
+          fi
+
+      - uses: actions/checkout@v6
+
+      - name: Determine Release Type and Extract Version
+        id: version
+        run: |
+          BRANCH_NAME="${GITHUB_REF_NAME}"
+          VERSION="${BRANCH_NAME#release/v}"
+
+          # Check if this version matches the one in the v1 manifest to determine if it's a v1 release
+          if [ -f .github/.release-please-manifest-v1.json ] && jq -e --arg v "$VERSION" '.["."] == $v' .github/.release-please-manifest-v1.json &>/dev/null; then
+            echo "is_v1=true" >> $GITHUB_OUTPUT
+            echo "base_branch=v1" >> $GITHUB_OUTPUT
+
+            SEMVER="$VERSION"
+            echo "semver=$SEMVER" >> $GITHUB_OUTPUT
+            echo "Semver version (v1): $SEMVER"
+
+            # PEP 440 Conversion (e.g., 2.0.0-alpha.1 -> 2.0.0a1)
+            PEP440=$(echo "$SEMVER" | sed -E 's/-alpha\./a/; s/-beta\./b/; s/-rc\./rc/')
+            echo "pep440=$PEP440" >> $GITHUB_OUTPUT
+            echo "PEP 440 version (v1): $PEP440"
+          else
+            echo "is_v1=false" >> $GITHUB_OUTPUT
+            echo "base_branch=main" >> $GITHUB_OUTPUT
+
+            echo "semver=$VERSION" >> $GITHUB_OUTPUT
+            echo "pep440=$VERSION" >> $GITHUB_OUTPUT
+            echo "Semver version (main): $VERSION"
+          fi
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          version: "latest"
+          enable-cache: true
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.11"
+
+      - name: Update version.py with PEP 440 version (v1 only)
+        if: steps.version.outputs.is_v1 == 'true'
+        env:
+          PEP440_VERSION: ${{ steps.version.outputs.pep440 }}
+        run: |
+          sed -i "s/^__version__ = .*/__version__ = \"${PEP440_VERSION}\"/" src/google/adk/version.py
+          echo "Updated version.py to ${PEP440_VERSION}"
+          grep __version__ src/google/adk/version.py
+
+      - name: Build package
+        run: uv build
+
+      - name: Publish to PyPI
+        env:
+          UV_PUBLISH_TOKEN: ${{ secrets.PYPI_TOKEN }}
+        run: uv publish
+
+      - name: Create merge-back PR
+        env:
+          GH_TOKEN: ${{ secrets.RELEASE_PAT }}
+          SEMVER_VERSION: ${{ steps.version.outputs.semver }}
+          PEP440_VERSION: ${{ steps.version.outputs.pep440 }}
+          BASE_BRANCH: ${{ steps.version.outputs.base_branch }}
+        run: |
+          gh pr create \
+            --base "$BASE_BRANCH" \
+            --head "${GITHUB_REF_NAME}" \
+            --title "chore: merge release v${PEP440_VERSION} to $BASE_BRANCH" \
+            --body "Syncs version bump and CHANGELOG from release v${SEMVER_VERSION} to $BASE_BRANCH."

.github/workflows/release-update-adk-web.yaml

@@ -0,0 +1,92 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: "Release: Update ADk Web"
+
+on:
+  workflow_dispatch:
+    inputs:
+      adk_web_repo:
+        description: 'Source adk-web repository'
+        required: true
+        default: 'google/adk-web'  # Default source repo
+      adk_web_tag:
+        description: 'Tag of the release to download (e.g. v1.0.0).'
+        required: false
+        default: ''
+
+jobs:
+  update-frontend:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v6
+      with:
+        persist-credentials: false
+
+    - name: Fetch and unzip frontend assets
+      run: |
+        TARGET_DIR="src/google/adk/cli/browser"
+        REPO="${{ github.event.inputs.adk_web_repo }}"
+        TAG="${{ github.event.inputs.adk_web_tag }}"
+        # Clean target directory
+        rm -rf "$TARGET_DIR"/*
+        mkdir -p "$TARGET_DIR"
+        if [ -z "$TAG" ]; then
+          echo "Fetching latest release metadata for $REPO..."
+          RELEASE_JSON=$(curl -s "https://api.github.com/repos/$REPO/releases/latest")
+        else
+          echo "Fetching release metadata for $REPO tag $TAG..."
+          RELEASE_JSON=$(curl -s "https://api.github.com/repos/$REPO/releases/tags/$TAG")
+        fi
+        # Extract download URL for adk-web-browser.zip
+        DOWNLOAD_URL=$(echo "$RELEASE_JSON" | grep -o -E '"browser_download_url": "[^"]+"' | grep -o -E 'https://[^"]+' | grep 'adk-web-browser.zip' | head -n 1)
+        if [ -z "$DOWNLOAD_URL" ]; then
+          echo "Error: Could not find adk-web-browser.zip asset in the release."
+          exit 1
+        fi
+        echo "Downloading assets from: $DOWNLOAD_URL"
+        curl -L -o frontend.zip "$DOWNLOAD_URL"
+        echo "Extracting assets to $TARGET_DIR..."
+        unzip -o frontend.zip -d "$TARGET_DIR"
+        rm frontend.zip
+        echo "Assets extracted successfully."
+
+    - name: Extract Bot Identity
+      id: bot-identity
+      env:
+        GH_TOKEN: ${{ secrets.RELEASE_PAT }}
+      run: |
+        USER_JSON=$(gh api user)
+        echo "name=$(echo "$USER_JSON" | jq -r '.login')" >> $GITHUB_OUTPUT
+        echo "email=$(echo "$USER_JSON" | jq -r '.id')+$(echo "$USER_JSON" | jq -r '.login')@users.noreply.github.com" >> $GITHUB_OUTPUT
+
+    - name: Create Pull Request
+      uses: peter-evans/create-pull-request@v6
+      with:
+        token: ${{ secrets.RELEASE_PAT }}
+        commit-message: "Update compiled adk web files from ${{ github.event.inputs.adk_web_repo }}@${{ github.event.inputs.adk_web_tag || 'latest' }}"
+        branch: update-frontend-assets
+        delete-branch: true
+        title: "chore: update compiled adk web assets"
+        committer: "${{ steps.bot-identity.outputs.name }} <${{ steps.bot-identity.outputs.email }}>"
+        author: "${{ steps.bot-identity.outputs.name }} <${{ steps.bot-identity.outputs.email }}>"
+        body: |
+          This PR automatically updates the compiled adk web files in `src/google/adk/cli/browser/` using the assets from `${{ github.event.inputs.adk_web_repo }}@${{ github.event.inputs.adk_web_tag || 'latest' }}`.
+          Please review the diff before merging.

.github/workflows/upload-adk-docs-to-vertex-ai-search.yml

@@ -0,0 +1,69 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Upload ADK Docs to Vertex AI Search
+
+on:
+  # Runs once per day at 16:00 UTC
+  schedule:
+   - cron: '00 16 * * *'
+  # Manual trigger for testing and fixing
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  upload-adk-docs-to-vertex-ai-search:
+    if: github.repository == 'google/adk-python'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Clone adk-docs repository
+        run: git clone https://github.com/google/adk-docs.git /tmp/adk-docs
+
+      - name: Clone adk-python repository
+        run: git clone https://github.com/google/adk-python.git /tmp/adk-python
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.11'
+
+      - name: Authenticate to Google Cloud
+        id: auth
+        uses: 'google-github-actions/auth@v3'
+        with:
+          credentials_json: '${{ secrets.ADK_GCP_SA_KEY }}'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install google-adk markdown google-cloud-storage google-cloud-discoveryengine
+
+      - name: Run Answering Script
+        env:
+          GITHUB_TOKEN: ${{ secrets.ADK_TRIAGE_AGENT }}
+          GOOGLE_CLOUD_PROJECT: ${{ secrets.GOOGLE_CLOUD_PROJECT }}
+          GOOGLE_CLOUD_LOCATION: ${{ secrets.GOOGLE_CLOUD_LOCATION }}
+          VERTEXAI_DATASTORE_ID: ${{ secrets.VERTEXAI_DATASTORE_ID }}
+          GOOGLE_GENAI_USE_VERTEXAI: 1
+          GCS_BUCKET_NAME: ${{ secrets.GCS_BUCKET_NAME }}
+          ADK_DOCS_ROOT_PATH: /tmp/adk-docs
+          ADK_PYTHON_ROOT_PATH: /tmp/adk-python
+          PYTHONPATH: ${{ github.workspace }}/contributing/samples/adk_team
+        run: python -m adk_answering_agent.upload_docs_to_vertex_ai_search