{"categories":[{"label":"Application Frameworks","url":"https://skillfed.io/packages/category/software-development-libraries-application-frameworks/4"}],"enrichment":{"capability":"npe2 is a plugin engine and management system for napari that enables discovery, validation, compilation, and installation of napari plugins through both CLI and programmatic interfaces.","skillfed_tags":["plugin-system","scientific-imaging","napari-ecosystem"],"use_cases":["Build a napari plugin by using npe2 to compile @npe2.implements decorators into a valid plugin manifest","Validate a plugin package before distribution to ensure its manifest conforms to npe2 specifications","Convert an existing napari v1 plugin to the npe2 format using the convert command","List and inspect all currently installed napari plugins and their manifests via CLI","Fetch and parse plugin manifests from remote packages to understand plugin capabilities"],"what_it_does":"npe2 is the plugin engine that powers napari's extensibility ecosystem. It provides tooling to define, validate, compile, and manage plugins that extend napari's core functionality for scientific imaging and domain-specific tasks. The package includes a command-line tool and programmatic API for plugin developers to build and distribute plugins, and for users to discover and manage installed plugins.\n\nThe engine handles plugin manifest validation, compilation of decorator-based plugin contributions into manifests, conversion of older napari plugins to the new format, and runtime plugin discovery. It depends on pydantic for schema validation, typer for CLI scaffolding, and rich for terminal output formatting.","worth_installing":"Yes. npe2 is actively maintained, has no known vulnerabilities, and is either a direct dependency for napari plugin development or automatically installed with napari itself. Install it if you are building, validating, or managing napari plugins; it is not needed for end users simply running napari with plugins already installed."},"id":"npe2","links":{"html":"https://skillfed.io/packages/npe2","md":"https://skillfed.io/packages/npe2.md","pypi":"https://pypi.org/project/npe2/"},"maintenance":{"status":"active"},"meta":{"latest_release":"2026-06-26","license_spdx":null,"license_treatment":"permissive","name":"npe2","python_support":"supports_current","summary":"napari plugin engine v2"},"popularity":{"monthly_downloads":198704,"position":9720,"tier":"top_15000"},"security":{"n_vulnerabilities":0},"version":"0.8.3"}