Covers the recommended distribution pattern (GitHub Release assets),
tag convention for monorepos, per-platform asset naming, compatibility.
platforms correctness, a minimum CI shape, and ${__dirname} guidance
for relocatable entry points.
- hello-world-node: wrap server startup in async main() with proper
await on server.connect(transport) — fixes crash on initialize in
Claude Desktop UtilityProcess runtime (closes#200)
- hello-world-uv: add required mcp_config block — v0.4 schema requires
it but the example omitted it, causing mcpb pack to fail
- file-manager-python: convert from broken v0.1/python to v0.4/uv —
the old manifest had privacy_policies on v0.1 (schema violation),
used command "python" (ENOENT on macOS), and had no bundled deps.
Now uses UV runtime with proper mcp_config (closes#47, closes#72)
- Graduate UV runtime from experimental across docs and schema comments
- Bump DEFAULT_MANIFEST_VERSION from 0.2 to 0.3
All three examples verified: pack succeeds, server responds to MCP
initialize over stdio, tools/list returns expected tools.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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>
Add validation to ensure the manifest_version matches the current expected
version (0.2) during the mcpb pack command. This prevents users from
packing extensions with outdated or incorrect manifest versions.
Changes:
- Add CURRENT_MANIFEST_VERSION constant to centralize version management
- Validate manifest version in pack command before creating bundle
- Update init command to use version constant
- Update tests to use version constant
- Fix prettier formatting issues
This section was added alongside the rename but is not necessary for the dxt -> mcpb rename itself. Removing to keep the rename commit focused on just the naming changes.
