Add UV as a new server type for Python extensions that use UV runtime
for dependency management instead of bundling dependencies.
Schema changes (v0.4):
- Add "uv" to server.type enum
- Make mcp_config optional (not needed for UV type)
- UV extensions rely on pyproject.toml for dependencies
Documentation:
- Add UV runtime section to MANIFEST.md explaining benefits and usage
- Update README.md to recommend UV runtime for Python
- Add complete hello-world-uv example
Benefits of UV runtime:
- Cross-platform support (Windows/macOS/Linux, Intel/ARM)
- Small bundle size (~100 KB vs 5-10 MB)
- Handles compiled dependencies portably
- No user Python installation required
Example manifest:
{
"manifest_version": "0.4",
"server": {
"type": "uv",
"entry_point": "src/server.py"
}
}
Co-authored-by: Joan <joan@anthropic.com>
Removed the non-versioned mcpb-manifest.schema.json from schemas/
directory. All schemas are now explicitly versioned.
Available schemas:
- mcpb-manifest-v0.1.schema.json
- mcpb-manifest-v0.2.schema.json
- mcpb-manifest-v0.3.schema.json
- mcpb-manifest-latest.schema.json
Consumers should use -latest or specific version to be explicit
about which schema version they're validating against.
Updated build script to generate JSON schemas for all historical manifest
versions (v0.1, v0.2, v0.3) in addition to the latest version.
Changes:
- Generate mcpb-manifest-v0.1.schema.json
- Generate mcpb-manifest-v0.2.schema.json
- Generate mcpb-manifest-v0.3.schema.json
- Generate mcpb-manifest-latest.schema.json
- Keep mcpb-manifest.schema.json as alias for latest
- All schemas generated to both dist/ and schemas/ directories
- Added exports in package.json for all versioned schemas
Benefits:
- Tools can validate against specific manifest versions
- Backwards compatibility for all historical versions
- Latest schema always available at predictable path
- JSON schema files match the Zod schema versions
Usage:
import manifestSchema from '@anthropic-ai/mcpb/mcpb-manifest-v0.2.schema.json'
import latestSchema from '@anthropic-ai/mcpb/mcpb-manifest-latest.schema.json'
- Refactor JSON schema generation to use zod-to-json-schema
- Publish manifest schema to schemas/ directory
- Update package.json exports for schema files
- Add WIP version 0.3 support
- Clean up schema generation scripts
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
