Mobile

Write Rust code following best practices. Use when developing Rust applications. Covers ownership, error handling, and async patterns.

Create comprehensive bidirectional requirements traceability matrix mapping acceptance criteria → implementation → tests with gap analysis, severity ratings, and coverage assessment. Maps each AC to implementation evidence (files, functions, code snippets) and test coverage (test files, scenarios, priorities). Use during quality review or for compliance audits to verify complete requirements coverage.

Self-improving context loader that MUST be run before every prompt. Searches Graphiti for relevant past work, loads appropriate vibe, and provides intelligent recommendations.

Use when creating new skills, editing existing skills, or verifying skills work before deployment - applies TDD to process documentation by testing with subagents before writing, iterating until bulletproof against rationalization | 新しいスキルの作成、既存スキルの編集、またはデプロイ前にスキルが機能するか検証する際に使用 - プロセスドキュメントにTDDを適用し、記述前にサブエージェントでテストし、合理化に対して堅牢になるまで反復

Use when creating new skills, editing existing skills, or verifying skills work before deployment - applies TDD to process documentation by testing with subagents before writing, iterating until bulletproof against rationalization

Master DOM selection, manipulation, event handling, and dynamic content creation for interactive web applications.

Perform initial analysis of a codebase - detect tech stack, directory structure, and completeness. This is Step 1 of the 6-step reverse engineering process that transforms incomplete applications into spec-driven codebases. Automatically detects programming languages, frameworks, architecture patterns, and generates comprehensive analysis-report.md. Use when starting reverse engineering on any codebase.

Use XcodeBuildMCP to build, run, launch, and debug the current iOS project on a booted simulator. Trigger when asked to run an iOS app, interact with the simulator UI, inspect on-screen state, capture logs/console output, or diagnose runtime behavior using XcodeBuildMCP tools.

Apply layered security architecture. Use when designing security controls, hardening systems, or reviewing security posture. Covers multiple security layers.

Expert in ALL computational collage composition: photo mosaics, grid layouts, scrapbook/journal styles, magazine editorial, vision boards, mood boards, social media collages, memory walls, abstract/generative arrangements, and art-historical techniques (Hockney joiners, Dadaist photomontage, Surrealist assemblage, Rauschenberg combines). Masters edge-based assembly, Poisson blending, optimal transport color harmonization, and aesthetic optimization. Activate on 'collage', 'photo mosaic', 'grid layout', 'scrapbook', 'vision board', 'mood board', 'photo wall', 'magazine layout', 'Hockney', 'joiner', 'photomontage'. NOT for simple image editing (use native-app-designer), generating new images (use Stability AI), single photo enhancement (use photo-composition-critic), or basic image similarity search (use clip-aware-embeddings).

Validate that skill instructions use domain-agnostic language by mentally applying them across three unrelated contexts and revising vocabulary that carries meaning in one field but creates friction in others. Use when: (1) a skill draft uses terminology from its origin domain, (2) reviewing a skill that works well in some contexts but feels awkward in others, (3) before finalizing any skill intended for general use.

Sends EPUB and PDF files to Kindle device via email using Apple Mail.app on macOS. Use when the user wants to send documents to their Kindle, transfer reading materials, or email files to their Kindle address.

Build React Native 0.76+ apps with Expo SDK 52. Covers mandatory New Architecture (0.82+), React 19 changes (propTypes/forwardRef removal), new CSS (display: contents, mixBlendMode, outline), Swift iOS template, and DevTools migration. Use when: building Expo apps, migrating to New Architecture, or troubleshooting "Fabric component not found", "propTypes not a function", "TurboModule not registered", or Swift AppDelegate errors.

Use when spec verified and ready for implementation to orchestrate development using isolated workspace and quality gates - sets up worktree, executes tasks via subagent-driven or sequential approach, verifies completion, and finishes development branch

Jesse's email workflows - archiving (pre-approved categories), replying (call-and-response with approval), processing URL notes, unsubscribing

Apply enterprise architecture patterns for integration and governance

Evaluate reasoning effectiveness after completing a session to learn what worked, what didn't, and what to try differently in future work Use when: (1) asked to learn from how a completed reasoning approach went, (2) after finishing significant problem-solving, design, or decision-making tasks, (3) when a completed reasoning approach worked particularly well or particularly poorly, (4) after trying a new combination of skills to evaluate its retrospective effectiveness

Kotlin language fundamentals - syntax, null safety, data classes, extensions

Generate formatted expense reports from receipt data or CSV. Create professional PDF reports with categorization, totals, and approval workflows.

Use SAP-RPT-1-OSS open source tabular foundation model for predictive analytics on SAP business data. Handles classification and regression tasks including customer churn prediction, delivery delay forecasting, payment default risk, demand planning, and financial anomaly detection. Use when asked to predict, forecast, classify, or analyze patterns in SAP tabular data exports (CSV/DataFrame). Runs locally via Hugging Face model.