chore: Bumps version to v1.21.0 and updates CHANGELOG.md

Co-authored-by: Xiang (Sean) Zhou <seanzhougoogle@google.com>
PiperOrigin-RevId: 843427582

.github/ISSUE_TEMPLATE/bug_report.md

@@ -19,7 +19,7 @@ Steps to reproduce the behavior:
 1. Install '...'
 2. Run '....'
 3. Open '....'
-4. Provie error or stacktrace
+4. Provide error or stacktrace
 
 **Expected behavior**
 A clear and concise description of what you expected to happen.

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

@@ -16,10 +16,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 

.github/workflows/check-file-contents.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 2
 
@@ -89,7 +89,7 @@ jobs:
       - name: Check for import from cli package in certain changed Python files
         run: |
           git fetch origin ${{ github.base_ref }}
-          CHANGED_FILES=$(git diff --diff-filter=ACMR --name-only origin/${{ github.base_ref }}...HEAD | grep -E '\.py$' | grep -v -E 'cli/.*|tests/.*|contributing/samples/' || true)
+          CHANGED_FILES=$(git diff --diff-filter=ACMR --name-only origin/${{ github.base_ref }}...HEAD | grep -E '\.py$' | grep -v -E 'cli/.*|src/google/adk/tools/apihub_tool/apihub_toolset.py|tests/.*|contributing/samples/' || true)
           if [ -n "$CHANGED_FILES" ]; then
             echo "Changed Python files to check:"
             echo "$CHANGED_FILES"

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

@@ -0,0 +1,134 @@
+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:
+    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: ${committer}`);
+
+                // Check if this is a Copybara commit
+                if (committer !== 'Copybara-Service') {
+                  console.log('Not a Copybara commit, skipping');
+                  continue;
+                }
+
+                // Extract PR number from commit message
+                // Pattern: "Merge https://github.com/google/adk-python/pull/3333"
+                const prMatch = message.match(/Merge https:\/\/github\.com\/google\/adk-python\/pull\/(\d+)/);
+
+                if (!prMatch) {
+                  console.log('No PR number found in Copybara commit message');
+                  continue;
+                }
+
+                const prNumber = parseInt(prMatch[1]);
+                const commitSha = sha.substring(0, 7);
+
+                prsToClose.push({ prNumber, commitSha });
+              }
+            }
+
+            // Process PRs to close
+            for (const { prNumber, commitSha } of prsToClose) {
+              console.log(`\n--- Processing PR #${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 ${commitSha}.\n\nClosing this PR as the changes are now in the main branch.`
+                });
+
+                // Close the PR
+                await github.rest.pulls.update({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  pull_number: prNumber,
+                  state: 'closed'
+                });
+
+                console.log(`Successfully closed PR #${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

@@ -15,10 +15,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 

.github/workflows/isort.yml

@@ -26,12 +26,12 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 2
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
 

.github/workflows/pr-triage.yml

@@ -3,10 +3,16 @@ name: ADK Pull Request Triaging Agent
 on:
   pull_request_target:
     types: [opened, reopened, edited]
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'The Pull Request number to triage'
+        required: true
+        type: 'string'
 
 jobs:
   agent-triage-pull-request:
-    if: "!contains(github.event.pull_request.labels.*.name, 'bot triaged') && !contains(github.event.pull_request.labels.*.name, 'google-contributor')"
+    if: github.event_name == 'workflow_dispatch' || !contains(github.event.pull_request.labels.*.name, 'google-contributor')
     runs-on: ubuntu-latest
     permissions:
       pull-requests: write
@@ -14,10 +20,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 
@@ -33,7 +39,7 @@ jobs:
           GOOGLE_GENAI_USE_VERTEXAI: 0
           OWNER: 'google'
           REPO: 'adk-python'
-          PULL_REQUEST_NUMBER: ${{ github.event.pull_request.number }}
+          PULL_REQUEST_NUMBER: ${{ github.event.pull_request.number || github.event.inputs.pr_number }}
           INTERACTIVE: ${{ vars.PR_TRIAGE_INTERACTIVE }}
           PYTHONPATH: contributing/samples
         run: python -m adk_pr_triaging_agent.main

.github/workflows/pyink.yml

@@ -26,12 +26,12 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 2
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
 

.github/workflows/python-unit-tests.yml

@@ -25,14 +25,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -48,14 +48,6 @@ jobs:
     - name: Run unit tests with pytest
       run: |
         source .venv/bin/activate
-        if [[ "${{ matrix.python-version }}" == "3.9" ]]; then
-          pytest tests/unittests \
-            --ignore=tests/unittests/a2a \
-            --ignore=tests/unittests/tools/mcp_tool \
-            --ignore=tests/unittests/artifacts/test_artifact_service.py \
-            --ignore=tests/unittests/tools/google_api_tool/test_googleapi_to_openapi_converter.py
-        else
-          pytest tests/unittests \
-            --ignore=tests/unittests/artifacts/test_artifact_service.py \
-            --ignore=tests/unittests/tools/google_api_tool/test_googleapi_to_openapi_converter.py
-        fi
+        pytest tests/unittests \
+          --ignore=tests/unittests/artifacts/test_artifact_service.py \
+          --ignore=tests/unittests/tools/google_api_tool/test_googleapi_to_openapi_converter.py

.github/workflows/stale-bot.yml

@@ -0,0 +1,43 @@
+name: ADK Stale Issue Auditor
+
+on:
+  workflow_dispatch:
+
+  schedule:
+    # This runs at 6:00 AM UTC (10 PM PST)
+    - cron: '0 6 * * *'
+
+jobs:
+  audit-stale-issues:
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    permissions:
+      issues: write
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+
+      - 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 Auditor Agent Script
+        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-2.5-flash"
+          PYTHONPATH: contributing/samples
+
+        run: python -m adk_stale_agent.main

.github/workflows/triage.yml

@@ -2,23 +2,32 @@ name: ADK Issue Triaging Agent
 
 on:
   issues:
-    types: [opened, reopened]
+    types: [opened, labeled]
   schedule:
-    - cron: '0 */6 * * *' # every 6h
+    # Run every 6 hours to triage untriaged issues
+    - cron: '0 */6 * * *'
 
 jobs:
   agent-triage-issues:
     runs-on: ubuntu-latest
+    # Run for:
+    # - Scheduled runs (batch processing)
+    # - New issues (need component labeling)
+    # - Issues labeled with "planned" (need owner assignment)
+    if: >-
+      github.event_name == 'schedule' ||
+      github.event.action == 'opened' ||
+      github.event.label.name == 'planned'
     permissions:
       issues: write
       contents: read
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 
@@ -32,8 +41,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.ADK_TRIAGE_AGENT }}
           GOOGLE_API_KEY: ${{ secrets.GOOGLE_API_KEY }}
           GOOGLE_GENAI_USE_VERTEXAI: 0
-          OWNER: 'google'
-          REPO: 'adk-python'
+          OWNER: ${{ github.repository_owner }}
+          REPO: ${{ github.event.repository.name }}
           INTERACTIVE: 0
           EVENT_NAME: ${{ github.event_name }} # 'issues', 'schedule', etc.
           ISSUE_NUMBER: ${{ github.event.issue.number }}

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

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Clone adk-docs repository
         run: git clone https://github.com/google/adk-docs.git /tmp/adk-docs
@@ -22,7 +22,7 @@ jobs:
         run: git clone https://github.com/google/adk-python.git /tmp/adk-python
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
 

.gitignore

@@ -98,3 +98,21 @@ Thumbs.db
 *.bak
 *.tmp
 *.temp
+
+# AI Coding Tools - Project-specific configs
+# Developers should symlink or copy AGENTS.md and add their own overrides locally
+.adk/
+.claude/
+CLAUDE.md
+.cursor/
+.cursorrules
+.cursorignore
+.windsurfrules
+.aider*
+.continue/
+.codeium/
+.githubnext/
+.roo/
+.rooignore
+.bolt/
+.v0/

CONTRIBUTING.md

@@ -57,7 +57,9 @@ information on using pull requests.
 ### Requirement for PRs
 
 -   All PRs, other than small documentation or typo fixes, should have a Issue
-    associated. If not, please create one.
+    associated. If a relevant issue doesn't exist, please create one first or
+    you may instead describe the bug or feature directly within the PR
+    description, following the structure of our issue templates.
 -   Small, focused PRs. Keep changes minimal—one concern per PR.
 -   For bug fixes or features, please provide logs or screenshot after the fix
     is applied to help reviewers better understand the fix.
@@ -143,7 +145,7 @@ part before or alongside your code PR.
 
 3.  **Create and activate a virtual environment:**
 
-    **NOTE**: ADK supports Python 3.9+. Python 3.11 and above is strongly
+    **NOTE**: ADK supports Python 3.10+. Python 3.11 and above is strongly
     recommended.
 
     Create a workspace venv using uv.
@@ -232,6 +234,6 @@ has resources that is helpful for contributors.
 
 ## Vibe Coding
 
-If you want to contribute by leveraging viber coding, the AGENTS.md
+If you want to contribute by leveraging vibe coding, the AGENTS.md
 (https://github.com/google/adk-python/tree/main/AGENTS.md) could be used as
-context to your LLM.
+context to your LLM.

README.md

@@ -4,58 +4,61 @@
 [![PyPI](https://img.shields.io/pypi/v/google-adk)](https://pypi.org/project/google-adk/)
 [![Python Unit Tests](https://github.com/google/adk-python/actions/workflows/python-unit-tests.yml/badge.svg)](https://github.com/google/adk-python/actions/workflows/python-unit-tests.yml)
 [![r/agentdevelopmentkit](https://img.shields.io/badge/Reddit-r%2Fagentdevelopmentkit-FF4500?style=flat&logo=reddit&logoColor=white)](https://www.reddit.com/r/agentdevelopmentkit/)
-[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/google/adk-python)
+<a href="https://codewiki.google/github.com/google/adk-python"><img src="https://www.gstatic.com/_/boq-sdlc-agents-ui/_/r/Mvosg4klCA4.svg" alt="Ask Code Wiki" height="20"></a>
 
 <html>
     <h2 align="center">
       <img src="https://raw.githubusercontent.com/google/adk-python/main/assets/agent-development-kit.png" width="256"/>
     </h2>
     <h3 align="center">
-      An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
+      An open-source, code-first Python framework for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
     </h3>
     <h3 align="center">
       Important Links:
       <a href="https://google.github.io/adk-docs/">Docs</a>,
       <a href="https://github.com/google/adk-samples">Samples</a>,
-      <a href="https://github.com/google/adk-java">Java ADK</a> &
+      <a href="https://github.com/google/adk-java">Java ADK</a>,
+      <a href="https://github.com/google/adk-go">Go ADK</a> &
       <a href="https://github.com/google/adk-web">ADK Web</a>.
     </h3>
 </html>
 
-Agent Development Kit (ADK) is a flexible and modular framework for developing and deploying AI agents. While optimized for Gemini and the Google ecosystem, ADK is model-agnostic, deployment-agnostic, and is built for compatibility with other frameworks. ADK was designed to make agent development feel more like software development, to make it easier for developers to create, deploy, and orchestrate agentic architectures that range from simple tasks to complex workflows.
-
+Agent Development Kit (ADK) is a flexible and modular framework that applies
+software development principles to AI agent creation. It is designed to
+simplify building, deploying, and orchestrating agent workflows, from simple
+tasks to complex systems. While optimized for Gemini, ADK is model-agnostic,
+deployment-agnostic, and compatible with other frameworks.
 
 ---
 
 ## 🔥 What's new
 
-- **Agent Config**: Build agents without code. Check out the
-  [Agent Config](https://google.github.io/adk-docs/agents/config/) feature.
+- **Custom Service Registration**: Add a service registry to provide a generic way to register custom service implementations to be used in FastAPI server. See [short instruction](https://github.com/google/adk-python/discussions/3175#discussioncomment-14745120). ([391628f](https://github.com/google/adk-python/commit/391628fcdc7b950c6835f64ae3ccab197163c990))
 
-- **Tool Confirmation**: A [tool confirmation flow(HITL)](https://google.github.io/adk-docs/tools/confirmation/) that can guard tool execution with explicit confirmation and custom input
+- **Rewind**: Add the ability to rewind a session to before a previous invocation ([9dce06f](https://github.com/google/adk-python/commit/9dce06f9b00259ec42241df4f6638955e783a9d1)).
+
+- **New CodeExecutor**: Introduces a new AgentEngineSandboxCodeExecutor class that supports executing agent-generated code using the Vertex AI Code Execution Sandbox API ([ee39a89](https://github.com/google/adk-python/commit/ee39a891106316b790621795b5cc529e89815a98))
 
 ## ✨ Key Features
 
 - **Rich Tool Ecosystem**: Utilize pre-built tools, custom functions,
-  OpenAPI specs, or integrate existing tools to give agents diverse
+  OpenAPI specs, MCP tools or integrate existing tools to give agents diverse
   capabilities, all for tight integration with the Google ecosystem.
 
 - **Code-First Development**: Define agent logic, tools, and orchestration
   directly in Python for ultimate flexibility, testability, and versioning.
 
+- **Agent Config**: Build agents without code. Check out the
+  [Agent Config](https://google.github.io/adk-docs/agents/config/) feature.
+
+- **Tool Confirmation**: A [tool confirmation flow(HITL)](https://google.github.io/adk-docs/tools/confirmation/) that can guard tool execution with explicit confirmation and custom input.
+
 - **Modular Multi-Agent Systems**: Design scalable applications by composing
   multiple specialized agents into flexible hierarchies.
 
 - **Deploy Anywhere**: Easily containerize and deploy agents on Cloud Run or
   scale seamlessly with Vertex AI Agent Engine.
 
-## 🤖 Agent2Agent (A2A) Protocol and ADK Integration
-
-For remote agent-to-agent communication, ADK integrates with the
-[A2A protocol](https://github.com/google-a2a/A2A/).
-See this [example](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents)
-for how they can work together.
-
 ## 🚀 Installation
 
 ### Stable Release (Recommended)
@@ -79,6 +82,13 @@ pip install git+https://github.com/google/adk-python.git@main
 
 Note: The development version is built directly from the latest code commits. While it includes the newest fixes and features, it may also contain experimental changes or bugs not present in the stable release. Use it primarily for testing upcoming changes or accessing critical fixes before they are officially released.
 
+## 🤖 Agent2Agent (A2A) Protocol and ADK Integration
+
+For remote agent-to-agent communication, ADK integrates with the
+[A2A protocol](https://github.com/google-a2a/A2A/).
+See this [example](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents)
+for how they can work together.
+
 ## 📚 Documentation
 
 Explore the full documentation for detailed guides on building, evaluating, and
@@ -146,10 +156,20 @@ We welcome contributions from the community! Whether it's bug reports, feature r
 - [General contribution guideline and flow](https://google.github.io/adk-docs/contributing-guide/).
 - Then if you want to contribute code, please read [Code Contributing Guidelines](./CONTRIBUTING.md) to get started.
 
+## Community Repo
+
+We have [adk-python-community repo](https://github.com/google/adk-python-community)that is home to a growing ecosystem of community-contributed tools, third-party
+service integrations, and deployment scripts that extend the core capabilities
+of the ADK.
+
 ## Vibe Coding
 
 If you are to develop agent via vibe coding the [llms.txt](./llms.txt) and the [llms-full.txt](./llms-full.txt) can be used as context to LLM. While the former one is a summarized one and the later one has the full information in case your LLM has big enough context window.
 
+## Community Events
+
+- [Completed] ADK's 1st community meeting on Wednesday, October 15, 2025. Remember to [join our group](https://groups.google.com/g/adk-community) to get access to the [recording](https://drive.google.com/file/d/1rpXDq5NSH8-MyMeYI6_5pZ3Lhn0X9BQf/view), and [deck](https://docs.google.com/presentation/d/1_b8LG4xaiadbUUDzyNiapSFyxanc9ZgFdw7JQ6zmZ9Q/edit?slide=id.g384e60cdaca_0_658&resourcekey=0-tjFFv0VBQhpXBPCkZr0NOg#slide=id.g384e60cdaca_0_658).
+
 ## 📄 License
 
 This project is licensed under the Apache 2.0 License - see the [LICENSE](LICENSE) file for details.

contributing/samples/a2a_auth/remote_a2a/bigquery_agent/agent.py

@@ -46,7 +46,7 @@ root_agent = Agent(
       Use the provided tools to conduct various operations on users' data in Google BigQuery.
 
       Scenario 1:
-      The user wants to query their biguqery datasets
+      The user wants to query their bigquery datasets
       Use bigquery_datasets_list to query user's datasets
 
       Scenario 2:

contributing/samples/a2a_human_in_loop/README.md

@@ -99,7 +99,7 @@ Agent: ✅ Great news! Your reimbursement has been approved by the manager. Proc
 The human-in-the-loop process follows this pattern:
 
 1. **Initial Call**: Root agent delegates approval request to remote approval agent for amounts >$100
-2. **Pending Response**: Remote approval agent returns immediate response with `status: "pending"` and ticket ID and serface the approval request to root agent
+2. **Pending Response**: Remote approval agent returns immediate response with `status: "pending"` and ticket ID and surface the approval request to root agent
 3. **Agent Acknowledgment**: Root agent informs user about pending approval status
 4. **Human Interaction**: Human manager interacts with root agent to review and approve/reject the request
 5. **Updated Response**: Root agent receives updated tool response with approval decision and send it to remote agent