stacdev/stac-custom-extensions
skills/stac-custom-extensions/SKILL.md
Scaffold and integrate custom Stac widgets and actions with parsers and registration checks. Use when users ask to build new StacParser or StacActionParser implementations, generate custom model classes, or verify parser registration inside Stac.initialize.
$ install --global
skillsauthnpx skillsauth add stacdev/stac stac-custom-extensionsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 13, 2026, 6:23 PM434.3s13 files scanned
SKILL.md
- name:
- stac-custom-extensions
- description:
- Scaffold and integrate custom Stac widgets and actions with parsers and registration checks. Use when users ask to build new StacParser or StacActionParser implementations, generate custom model classes, or verify parser registration inside Stac.initialize.
Stac Custom Extensions
Overview
Use this skill to add custom widgets/actions that serialize cleanly and register correctly in a Stac app.
Workflow
- Choose extension type: widget or action.
- Scaffold model and parser files with scripts.
- Add generated files to app codebase and run codegen.
- Verify parser registration in
main.dart. - Validate runtime wiring with a minimal usage example.
Required Inputs
- PascalCase extension name.
- Runtime type id (
typeoractionType). - Output directory for generated files.
- Path to
main.dartfor registration check.
Output Contract
- Produce model + parser pair with consistent type ids.
- Include registration snippet for
Stac.initialize. - Include
build_runnercommand when json serialization is used.
References
- Read
references/custom-widget-checklist.mdfor widget model/parser flow. - Read
references/custom-action-checklist.mdfor action model/parser flow. - Read
references/parser-registration.mdfor initialization wiring. - Read
references/converters-guide.mdfor converter usage patterns.
Scripts
scripts/scaffold_custom_widget.py --name <Name> --type <widgetType> --out-dir <path>scripts/scaffold_custom_action.py --name <Name> --action-type <actionType> --out-dir <path>scripts/check_parser_registration.py --main-dart <path> --parser-class <ClassName>
Templates
assets/templates/custom_widget.dart.tmplassets/templates/custom_widget_parser.dart.tmplassets/templates/custom_action.dart.tmplassets/templates/custom_action_parser.dart.tmpl
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