# Useful but Little-Known Features of ADK 2.0
🌍 Struggling to manage binary data like images, PDFs, and audio files that your AI agents produce and consume?
ADK 2.0's artifact management provides a unified system for handling binary data, identified by filename with automatic versioning built in.
📌 Title: Artifact Management
🔗 URL:
🧩 Overview
Artifacts provide a unified way to manage binary data generated and stored within agent sessions. Each artifact is represented as a `google.genai.types.Part` with inline_data (data bytes + MIME type) and identified by filename. Every save automatically assigns a version number (0, 1, 2...), enabling change tracking. Scope can be session-level (default) or user-level (with the `user:` prefix).
🛠 How to use it
Use the `context` object to save, load, and list artifacts.
```python
from google.genai import types
# Save an artifact
image_part = types.Part(inline_data=types.Blob(
data=image_bytes,
mime_type="image/png"
))
version = "report_chart.png", image_part)
# Load an artifact
artifact = context.load_artifact("report_chart.png")
# List all artifacts
artifact_names = context.list_artifacts()
```
Use `InMemoryArtifactService` for development and `GcsArtifactService` for production, enabling flexible deployment across environments.
🏗 Building it into production
・Use `GcsArtifactService` in production for durable, persistent storage
・Leverage user-scoped artifacts (with `user:` prefix) for data shared across sessions
・Take advantage of versioning to build change history tracking and rollback mechanisms
・Set MIME types correctly to ensure downstream processing compatibility
💡 Use cases
🖼️ Saving and reusing agent-generated charts and diagrams
📄 PDF report generation with version control
🎵 Storing synthesized audio and passing it to downstream processing
👤 Managing per-user profile images and documents
⚠️ Watch out
`InMemoryArtifactService` loses all data when the process terminates — use it only for development and testing. For large volumes of binary data, watch GCS storage costs and quotas. Session-scoped artifacts become inaccessible after the session ends, so use user-scoped artifacts for data that needs to persist.
✨ With artifact management, handling binary data becomes straightforward, making it dramatically easier to build multimodal agent capabilities.
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