Merge branch 'main' into fix-genai-parts

Author: filipecaixeta

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,34 +7,69 @@ 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*
 
-**Describe the bug**
+**Describe the Bug:**
 A clear and concise description of what the bug is.
 
-**To Reproduce**
-Please share a minimal code and data to reproduce your problem.
-Steps to reproduce the behavior:
+**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**
+**Expected Behavior:**
 A clear and concise description of what you expected to happen.
 
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
+**Observed Behavior:**
+What actually happened? Include error messages or crash stack traces here.
 
-**Desktop (please complete the following information):**
- - OS: [e.g. macOS, Linux, Windows]
- - Python version(python -V):
- - ADK version(pip show google-adk):
+**Environment Details:**
+
+ - ADK Library Version (pip show google-adk):
+ - Desktop OS:** [e.g., macOS, Linux, Windows]
+ - Python Version (python -V):
+
+**Model Information:**
 
- **Model Information:**
  - Are you using LiteLLM: Yes/No
- - Which model is being used(e.g. gemini-2.5-pro)
+ - 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?
 
-**Additional context**
+**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

@@ -10,14 +10,39 @@ 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/)
 
-**Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+## 🔴 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 solution you'd like**
-A clear and concise description of what you want to happen.
+### 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 alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
+### 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.
 
-**Additional context**
-Add any other context or screenshots about the feature request here.
+### 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/workflows/mypy-new-errors.yml

@@ -0,0 +1,74 @@
+name: Mypy New Error Check
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+
+jobs:
+  mypy-diff:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.10', '3.11', '3.12', '3.13',]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+
+      - name: Generate Baseline (Main)
+        run: |
+          # Switch to main branch to generate baseline
+          git checkout origin/main
+
+          git checkout ${{ github.sha }} -- pyproject.toml
+          
+          # Install dependencies for main
+          uv venv .venv
+          source .venv/bin/activate
+          uv sync --all-extras
+          
+          # Run mypy, filter for errors only, remove line numbers (file:123: -> file::), and sort
+          # We ignore exit code (|| true) because we expect errors on main
+          uv run mypy . | grep "error:" | sed 's/:\([0-9]\+\):/::/g' | sort > main_errors.txt || true
+          
+          echo "Found $(wc -l < main_errors.txt) errors on main."
+
+      - 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 (main) and common lines, 
+          # leaving only lines unique to file2 (PR) -> The new errors.
+          comm -13 main_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

.github/workflows/mypy.yml

@@ -0,0 +1,32 @@
+name: Mypy Type Check
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  mypy:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.10', '3.11', '3.12', '3.13',]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v1
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: uv sync --all-extras
+
+      - name: Run mypy
+
+        run: uv run mypy . --strict

CHANGELOG.md

@@ -5,11 +5,11 @@
 ### ⚠ BREAKING CHANGES
 
 * Breaking: Use OpenTelemetry for BigQuery plugin tracing, replacing custom `ContextVar` implementation ([ab89d12](https://github.com/google/adk-python/commit/ab89d1283430041afb303834749869e9ee331721))
-* Add support to automatically create a session if one does not exist ([8e69a58](https://github.com/google/adk-python/commit/8e69a58df4eadeccbb100b7264bb518a46b61fd7))
 
 ### Features
 
 * **[Core]**
+  * Add support to automatically create a session if one does not exist ([8e69a58](https://github.com/google/adk-python/commit/8e69a58df4eadeccbb100b7264bb518a46b61fd7))
   * Remove `@experimental` decorator from `AgentEngineSandboxCodeExecutor` ([135f763](https://github.com/google/adk-python/commit/135f7633253f6a415302142abc3579b664601d5b))
   * Add `--disable_features` CLI option to override default feature enable state ([53b67ce](https://github.com/google/adk-python/commit/53b67ce6340f3f3f8c3d732f9f7811e445c76359))
   * Add `otel_to_cloud` flag to `adk deploy agent_engine` command ([21f63f6](https://github.com/google/adk-python/commit/21f63f66ee424501d9a70806277463ef718ae843))

CONTRIBUTING.md

@@ -188,6 +188,18 @@ part before or alongside your code PR.
     pytest ./tests/unittests
     ```
 
+    **Alternatively**, use the included `unittests.sh` script which handles
+    environment setup and restoration automatically:
+
+    ```shell
+    ./scripts/unittests.sh
+    ```
+
+    This script will:
+    -   Set up the test environment with minimal dependencies (`test`, `eval`, `a2a`)
+    -   Run the unit tests
+    -   Restore the full development environment (`--all-extras`)
+
 6.  **Auto-format the code:**
 
     **NOTE**: We use `isort` and `pyink` for styles. Use the included

contributing/samples/adk_documentation/adk_release_analyzer/agent.py

@@ -57,8 +57,25 @@
 from google.adk.agents.loop_agent import LoopAgent
 from google.adk.agents.readonly_context import ReadonlyContext
 from google.adk.agents.sequential_agent import SequentialAgent
+from google.adk.models import Gemini
 from google.adk.tools.exit_loop_tool import exit_loop
 from google.adk.tools.tool_context import ToolContext
+from google.genai import types
+
+# Retry configuration for handling API rate limits and overload
+_RETRY_OPTIONS = types.HttpRetryOptions(
+    initial_delay=10,
+    attempts=8,
+    exp_base=2,
+    max_delay=300,
+    http_status_codes=[429, 503],
+)
+
+# Use gemini-3-pro-preview for planning and summary (better quality)
+GEMINI_PRO_WITH_RETRY = Gemini(
+    model="gemini-3-pro-preview",
+    retry_options=_RETRY_OPTIONS,
+)
 
 # Maximum number of files per analysis group to avoid context overflow
 MAX_FILES_PER_GROUP = 5
@@ -249,7 +266,7 @@ def get_release_context(tool_context: ToolContext) -> dict[str, Any]:
 # =============================================================================
 
 planner_agent = Agent(
-    model="gemini-2.5-pro",
+    model=GEMINI_PRO_WITH_RETRY,
     name="release_planner",
     description=(
         "Plans the analysis by fetching release info and organizing files into"
@@ -272,10 +289,12 @@ def get_release_context(tool_context: ToolContext) -> dict[str, Any]:
 
 3. Call `get_changed_files_summary` to get the list of changed files WITHOUT
    the full patches (to save context space).
+   - **IMPORTANT**: Pass these parameters:
+     - `local_repo_path="{LOCAL_REPOS_DIR_PATH}/{CODE_REPO}"` to avoid 300-file limit
+     - `path_filter="src/google/adk/"` to only get ADK source files (reduces token usage)
 
-4. Filter and organize the files:
-   - **INCLUDE** only files in `src/google/adk/` directory
-   - **EXCLUDE** test files, `__init__.py`, and files outside src/
+4. Further filter the returned files:
+   - **EXCLUDE** test files and `__init__.py` files
    - **IMPORTANT**: Do NOT exclude any file just because it has few changes.
      Even single-line changes to public APIs need documentation updates.
    - **PRIORITIZE** by importance:
@@ -421,7 +440,7 @@ def file_analyzer_instruction(readonly_context: ReadonlyContext) -> str:
 
 
 file_group_analyzer = Agent(
-    model="gemini-2.5-pro",
+    model=GEMINI_PRO_WITH_RETRY,
     name="file_group_analyzer",
     description=(
         "Analyzes a group of changed files and generates recommendations."
@@ -505,7 +524,7 @@ def summary_instruction(readonly_context: ReadonlyContext) -> str:
 
 
 summary_agent = Agent(
-    model="gemini-2.5-pro",
+    model=GEMINI_PRO_WITH_RETRY,
     name="summary_agent",
     description="Compiles recommendations and creates the GitHub issue.",
     instruction=summary_instruction,
@@ -540,7 +559,7 @@ def summary_instruction(readonly_context: ReadonlyContext) -> str:
 # =============================================================================
 
 root_agent = Agent(
-    model="gemini-2.5-pro",
+    model=GEMINI_PRO_WITH_RETRY,
     name="adk_release_analyzer",
     description=(
         "Analyzes ADK Python releases and generates documentation update"