aRustyDev

Strategic search planning for agent-driven research. Generates structured search-term matrices with tiered fallback strategies, engine-specific operators, and grading criteria before executing any searches. Use this skill whenever research requires more than a single search query — comparing technologies, verifying claims across sources, surveying a landscape, investigating a multi-faceted question, or building evidence for a decision. Do NOT use for quick factual lookups, fetching a single known URL, or questions answerable from a single source. Covers tech, academic, regulatory, and general domains. Think of it as "research planning" — the matrix is the plan, execution comes after.

Create language conversion skills for translating code from language A to language B. Use when building 'convert-X-Y' skills, designing type mappings between languages, establishing idiom translation patterns, or defining conversion methodologies. Provides foundational patterns that specific conversion skills extend.

Guide for translating code between programming languages. Use when converting code from one language to another, planning language migrations, understanding conversion challenges, asking about type mappings, idiom translations, or referencing pattern mappings. Covers APTV workflow, type systems, error handling, concurrency, and language-specific gotchas.

Identify skill coverage gaps and improvement opportunities. Use when analyzing missing skills for a task, creating skill gap issues, evaluating skill effectiveness, or refining skill progressive disclosure.

Validate Claude Code skills against best practices. Use when checking skill quality, running validation, or creating improvement issues.

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This skill calculates key financial ratios and metrics from financial statement data for investment analysis

This skill applies consistent corporate branding and styling to all generated documents including colors, fonts, layouts, and messaging

Architecture Decision Record authoring, reviewing, and lifecycle management. Use when creating new ADRs, reviewing ADR quality, deciding what warrants an ADR, updating ADR status, superseding decisions, or backfilling ADRs from git history. Covers MADR template, E.C.A.D.R. quality criteria, status lifecycle, and code traceability patterns.

Justfile authoring, reviewing, and planning for the just command runner. Use when creating new justfiles, adding recipes, reviewing existing justfiles for quality, planning recipe sets for new projects, or upgrading justfiles as projects mature. Covers syntax patterns, module system, recipe groups, language-specific templates, and maturity assessment.

Developing custom GitHub Actions (JavaScript, TypeScript, Docker, Composite). Use this skill when the user asks to 'create a GitHub Action', 'build a custom action', 'publish action to marketplace', 'write action.yml', or 'develop reusable action'.

Run and manage performance benchmarks with cargo xtask bench for facet-json, analyzing results with Markdown reports and comparing against serde_json baseline

Foundational Rust patterns covering core syntax, traits, generics, lifetimes, and common idioms. Use when writing Rust code, understanding ownership basics, working with Option/Result, or needing guidance on which specialized Rust skill to use. This is the entry point for Rust development.

Rust documentation practices for HASH codebase. Use when writing doc comments, documenting functions/types/traits/modules, creating error sections, using intra-doc links, following rustdoc conventions, or exploring crate APIs with cargo doc.

HASH error handling patterns using error-stack crate. Use when working with Result types, Report types, defining custom errors, propagating errors with change_context, adding context with attach, implementing Error trait, or documenting error conditions in Rust code.

Rust crate and library development patterns covering Cargo.toml for libraries, crate structure, module organization, rustdoc, publishing to crates.io, feature flags, semantic versioning, and API design. Use when creating a Rust library or crate, publishing to crates.io, documenting APIs with rustdoc, or managing library features and versions. This is the specialized skill for Rust library/crate development.

Extract data from files related to SANS courses.

Generate a skeleton template for a new Claude Code Skill.

Audit an Anthropic Cookbook notebook based on a rubric. Use whenever a notebook review or audit is requested.

Extract data from files related to SANS courses.

This skill calculates key financial ratios and metrics from financial statement data for investment analysis

This skill provides an advanced financial modeling suite with DCF analysis, sensitivity testing, Monte Carlo simulations, and scenario planning for investment decisions

Pre-implementation confidence assessment (≥90% required). Use before starting any implementation to verify readiness with duplicate check, architecture compliance, official docs verification, OSS references, and root cause identification.

Cloudflare Workers development guide for building serverless edge applications. Use this skill when creating Workers, configuring wrangler.toml, using D1/KV/R2 storage, implementing Durable Objects, deploying to Cloudflare, or building edge functions with TypeScript.

Develop and troubleshoot GitHub Actions workflows and CI configurations. Use when creating workflows, debugging CI failures, understanding job logs, or optimizing CI pipelines.

Developing custom GitHub Actions (JavaScript, TypeScript, Docker, Composite). Use this skill when the user asks to 'create a GitHub Action', 'build a custom action', 'publish action to marketplace', 'write action.yml', or 'develop reusable action'.

Create, test, and maintain Homebrew formulas. Use when adding packages to a Homebrew tap, debugging formula issues, running brew audit/test, or automating version updates with livecheck.

TypeScript development guidelines and patterns. Use this skill when writing TypeScript code, creating React components with TypeScript, configuring tsconfig.json, using advanced types like generics or utility types, or when the user asks about TypeScript best practices.