Add sandbox agent example with Docker and Daytona support

.gitignore

@@ -1,5 +1,11 @@
 ###### Place new entries directly below this line! ######
 
+# GAIA benchmark data
+examples/sandbox_agent/src/nat_sandbox_agent/data/*
+!examples/sandbox_agent/src/nat_sandbox_agent/data/attachments/
+examples/sandbox_agent/src/nat_sandbox_agent/data/attachments/*
+!examples/sandbox_agent/src/nat_sandbox_agent/data/attachments/.gitkeep
+
 # auto-generated chainlit stuff
 chainlit.md
 .chainlit

ci/vale/styles/config/vocabularies/nemo-agent-toolkit-examples/accept.txt

@@ -43,6 +43,7 @@ Dask
 Databricks
 Datadog
 DB(s?)
+[Dd]aytona
 [Dd]eserialize
 [Dd]ev
 [Dd]evcontainer(s?)
@@ -59,6 +60,7 @@ Grafana
 groundedness
 [Gg]ranularities
 [Hh]ashable
+httpx
 [Hh]yperparameter(s?)
 [Ii]nferencing
 isort
@@ -72,6 +74,7 @@ LLM(s?)
 # https://github.com/logpai/loghub/
 Loghub
 Mem0
+matplotlib
 Milvus
 [Mm]ixin
 MLflow
@@ -85,6 +88,7 @@ NIC
 NIM(s?)
 npm
 NumPy
+openpyxl
 NVIDIA
 OAuth
 URIs
@@ -103,16 +107,20 @@ PDF(s?)
 Pydantic
 PyPI
 pytest
+[Pp]yyaml
 [Rr]erank
 [Rr]eranker(s?)
 [Rr]eranking
 [Rr]edis
 [Rr]einstall(s?)
+reportlab
 [Rr]eplatform(ing)?
 [Rr]epo
 [Rr]etarget(ed?)
 [Rr]eusability
 [Rr]untime(s?)
+[Ss]andbox(ed|es|ing)?
+seaborn
 [Ss]erializable
 [Ss]ubclassing
 [Ss]ubcard(s?)

examples/sandbox_agent/Dockerfile

@@ -0,0 +1,142 @@
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# 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.
+
+# Sandbox Agent Docker Image
+# This image provides a pre-configured environment for sandbox execution
+# with all necessary tools and libraries pre-installed.
+
+FROM python:3.12-slim
+
+# Metadata
+LABEL maintainer="NVIDIA Corporation"
+LABEL description="Sandbox Agent execution environment with Python, browser automation, and document generation tools"
+
+# Set environment variables
+ENV DEBIAN_FRONTEND=noninteractive
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    # Basic utilities
+    curl \
+    wget \
+    git \
+    jq \
+    vim \
+    unzip \
+    # Network tools
+    ca-certificates \
+    # Browser dependencies (for Playwright)
+    libnss3 \
+    libnspr4 \
+    libdbus-1-3 \
+    libatk1.0-0 \
+    libatk-bridge2.0-0 \
+    libcups2 \
+    libdrm2 \
+    libxkbcommon0 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxfixes3 \
+    libxrandr2 \
+    libgbm1 \
+    libasound2 \
+    libpango-1.0-0 \
+    libcairo2 \
+    # Fonts for document generation and browser
+    fonts-liberation \
+    fonts-noto \
+    fonts-noto-cjk \
+    fonts-dejavu-core \
+    # Audio/video processing
+    ffmpeg \
+    # PDF processing
+    poppler-utils \
+    # OCR
+    tesseract-ocr \
+    tesseract-ocr-eng \
+    # Document generation dependencies
+    pandoc \
+    # Clean up
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python packages
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir \
+    # Data processing
+    pandas>=2.0.0 \
+    numpy>=1.24.0 \
+    matplotlib>=3.7.0 \
+    seaborn>=0.12.0 \
+    # Network requests
+    requests>=2.31.0 \
+    httpx>=0.24.0 \
+    beautifulsoup4>=4.12.0 \
+    lxml>=4.9.0 \
+    # Browser automation
+    playwright>=1.40.0 \
+    # Web search
+    tavily-python>=0.5.0 \
+    # Document generation
+    python-pptx>=0.6.21 \
+    python-docx>=1.1.0 \
+    reportlab>=4.0.0 \
+    markdown>=3.5.0 \
+    # Excel support
+    openpyxl>=3.1.0 \
+    xlrd>=2.0.0 \
+    # JSON/YAML
+    pyyaml>=6.0.0 \
+    # Image processing
+    pillow>=10.0.0 \
+    # PDF processing
+    pdfplumber>=0.10.0 \
+    pypdf>=3.0.0 \
+    pdf2image>=1.16.0 \
+    # OCR
+    pytesseract>=0.3.10 \
+    # Mathematical computation
+    sympy>=1.12 \
+    # Computer vision
+    opencv-python-headless>=4.8.0 \
+    # Speech recognition
+    faster-whisper>=1.0.0 \
+    # Utilities
+    aiofiles>=23.0.0 \
+    python-dateutil>=2.8.0
+
+# Create shared directory for Playwright browsers (accessible by all users)
+ENV PLAYWRIGHT_BROWSERS_PATH=/opt/playwright-browsers
+RUN mkdir -p ${PLAYWRIGHT_BROWSERS_PATH} && chmod 755 ${PLAYWRIGHT_BROWSERS_PATH}
+
+# Install Playwright browser (Chromium only to reduce size)
+RUN playwright install chromium --with-deps
+
+# Pre-download faster-whisper model so it's available offline
+RUN python -c "from faster_whisper import WhisperModel; WhisperModel('tiny')"
+
+# Create workspace directories
+RUN mkdir -p /workspace/input \
+             /workspace/output \
+             /workspace/temp \
+             /workspace/downloads
+
+# Set working directory
+WORKDIR /workspace
+
+# Default command - keep container running
+CMD ["/bin/bash"]