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From flutter-slipstream
This skill should be used when about to write Dart or Flutter code that calls into a pub package whose API is uncertain — the package is unfamiliar, or its version in pubspec.lock may be newer than training data. Also load when hitting an unexpected compile error or type mismatch on a package import. Skip for code that only uses the Dart SDK (dart:*) and packages already verified this session.
How this skill is triggered — by the user, by Claude, or both
Slash command
/flutter-slipstream:slipstream-packagesThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Training-data summaries for pub packages are often subtly out-of-date: incorrect
Training-data summaries for pub packages are often subtly out-of-date: incorrect
parameter names, missing required/optional distinctions, wrong constructor
shapes, renamed or removed APIs. The packages tools read directly from the
local pub cache — exact signatures, always matches pubspec.lock, no network
required.
package_summary(project_directory, package) — always start here. Returns
version, entry-point import, library list, and exported name groups. Often
enough to confirm the right import path and top-level names.library_stub(project_directory, package, library_uri) — full public API for
one library as Dart signatures (no bodies, no private members). Use when you
need exact constructor shapes, named parameter names, or return types.class_stub(project_directory, package, library_uri, class) — single class
stub including inherited and mixin-contributed members. Use when you know
exactly which class you need.project_directory is the absolute path to the Dart/Flutter project (the
directory containing pubspec.yaml). Run dart pub get first if
.dart_tool/package_config.json is missing.
Constants values are not shown in stubs.
npx claudepluginhub devoncarew/slipstream --plugin flutter-slipstreamProvides behavioral guidelines to reduce common LLM coding mistakes, focusing on simplicity, surgical changes, assumption surfacing, and verifiable success criteria.
Searches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.
Creates, edits, and optimizes skills for Claude Code, including drafting, evaluating with test prompts, iterating on performance, and improving skill descriptions for better triggering accuracy.