callstackincubator/agent-skills

• **Archetype**: domain-skill-pack
• **Stars**: 1,230
• **Last pushed**: 2026-04-12
• **License**: MIT
• **Discovered**: 2026-04-12
• **Skills found**: 10

Summary

Agent-optimized React Native skills from Callstack (a leading React Native consulting firm). 10 skills organized across source skills/ (5 public), plugins/vendored/ (5 internal), and .claude/skills/ (1 meta-skill). Covers React Native best practices (performance optimization with impact ratings), brownfield migration, upgrading React Native, GitHub Actions, GitHub workflows, device testing, and Vercel integration. The react-native-best-practices skill is particularly deep -- an optimization guide structured as Quick Pattern/Command/Config/Reference + Deep Dive per topic, with CRITICAL/HIGH/MEDIUM impact ratings and a six-priority optimization hierarchy.

Assessment

HIGH VALUE for domain specialization. The react-native-best-practices skill demonstrates expert-level encoding of performance optimization knowledge: FPS/re-renders (CRITICAL) -> bundle size (CRITICAL) -> TTI (HIGH) -> native performance (HIGH) -> memory management (MEDIUM-HIGH) -> animations (MEDIUM). The hybrid format (Quick Pattern for fast lookup + Deep Dive for full context) is a reusable skill structure pattern. The impact ratings with priority ordering provide a triage framework. The brownfield migration and upgrading skills represent procedural workflows for complex multi-step operations. Authoritative source (Callstack is a recognized React Native expert firm).

Extraction Priority

• High
• Rationale: Authoritative domain expertise from a recognized React Native consultancy. The performance optimization priority hierarchy, impact ratings, and hybrid skill format (quick reference + deep dive) are directly transferable patterns. Brownfield migration and upgrading are complex multi-step processes ideal for babysitter orchestration.

Processes

• **React Native Performance Optimization**: Measure -> identify category (FPS/bundle/TTI/native/memory/animations) -> apply priority-ordered fixes with impact ratings -> re-measure -> validate. An iterative convergence process with triage.
• **React Native Brownfield Migration**: Integrate React Native into existing native app with incremental adoption steps. A multi-phase migration process.
• **React Native Upgrade Process**: Version upgrade with dependency resolution, breaking change handling, and testing. A complex multi-step process with rollback gates.
• **Validate Skills Meta-Process**: .claude/skills/validate-skills/ -- a meta-skill for validating other skills in the collection. Quality assurance for skill content.

Plugin Ideas

• **React Native Expert plugin**: Install.md-driven plugin with performance optimization skills, impact-rated guidelines, and the Quick Pattern + Deep Dive format. Includes profiling commands and configuration snippets.
• **Performance Triage Framework plugin**: A generic performance optimization plugin template with customizable categories, impact ratings (CRITICAL/HIGH/MEDIUM), and measure-optimize-remeasure cycle. Adaptable to any framework, not just React Native.

Patterns

• **Impact-rated priority hierarchy**: Six categories ordered by impact, each with CRITICAL/HIGH/MEDIUM ratings. Provides clear triage guidance -- "fix CRITICAL first, then HIGH."
• **Hybrid skill format**: Quick Pattern (code snippets) + Quick Command (shell) + Quick Config (configuration) + Quick Reference (summary tables) + Deep Dive (full context with prerequisites, step-by-step, common pitfalls). Serves both quick lookup and deep learning needs.
• **Measure-optimize-remeasure cycle**: Explicit measurement requirement before and after optimization. Prevents subjective assessment of improvement.
• **Security notes in skill files**: Explicit security guidance for shell commands, third-party dependencies, and remote code loading within skill documentation. A responsible disclosure pattern.
• **Vendored plugins**: plugins/vendored/ directory for internal/pre-release skills separate from public skills/. Clean separation of public and internal skill content.
• **Meta-skill for validation**: A skill whose purpose is validating other skills in the collection. Self-referential quality assurance.

Library Mapping

Plugin Marketplace Mapping