Best Skills (2026)
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We tracked, tested and compared every Skills tool on Olymp Hill to rank the 10 best for 2026. Below is the shortlist with our take on each, followed by the full, searchable directory.
If you're like me, you've found yourself staring at a blank page staring down the barrel of a looming project deadline, wondering where to start and how to tackle the complex tasks ahead. Before you dive into coding, it's essential to have a solid understanding of the key skills and concepts involved. This is where Skills come in - a collection of AI-powered tools designed to help you master critical programming skills, make informed decisions, and navigate even the most daunting projects.
When choosing a tool from this category, focus on two key factors: ease of use and customizability. You'll want a tool that's intuitive enough to help you grasp the concept quickly, yet versatile enough to adapt to your specific needs. Avoid tools with overly convoluted interfaces or rigid constraints that might stifle your creativity.
A good Skills tool should also be well-documented and frequently updated to reflect the latest best practices and industry trends. This ensures you're getting access to the most accurate and up-to-date information, rather than relying on outdated knowledge. Pay attention to the tool's maintenance history and community engagement - a lively and responsive community can make a significant difference in your learning experience.
Free Options and Paid Alternatives
While many Skills tools are free, some offer premium features or additional support for a fee. When considering paid alternatives, weigh the extra cost against the potential benefits. In some cases, a paid tool might offer advanced features or exclusive access to industry experts, making it well worth the investment. However, if you're working on a tight budget or simply prefer to stick with free options, there are still many excellent choices available.
Some popular free Skills tools include Using Git Worktrees, which provides a secure and isolated environment for feature work and implementation plans. This tool is particularly useful when working with complex projects or sensitive data. Another valuable resource is Ga4 Bigquery Schema, which offers a complete reference guide for GA4 BigQuery export schema, complete with nested structures, query patterns, and performance tips.
For those interested in web development, Advpl Mvc Avancado and Manage Headers are excellent choices. The former offers a sophisticated MVC framework for Power Pages, while the latter helps you configure security headers for optimal browser protection.
Expert Insights and Real-World Applications
When evaluating a Skills tool, it's essential to consider real-world applications and expert insights. Look for tools that have been tested and validated by industry professionals, as these often provide the most accurate and relevant information. Some tools, like Board Of Directors, simulate expert deliberations to help you make informed decisions, while others, like Test Module Name, offer best practices for writing and reviewing test modules.
In addition to these tools, Meta Capi and Callees offer in-depth resources on conversions API setup and function calls, respectively. These resources can be incredibly valuable when dealing with complex projects or trying to optimize performance.
Practical Advice
When using Skills tools, remember to start small and gradually build your knowledge and confidence. Don't be afraid to experiment and try new approaches - Skills tools are designed to help you learn and grow. By carefully selecting the right tools and approaches, you'll be well-equipped to tackle even the most challenging projects and achieve your goals.
Take advantage of free options and explore different tools to find what works best for you. Prioritize ease of use, customizability, and documentation, and don't be afraid to seek guidance from experts or community resources when needed. With the right Skills tools and a willingness to learn, you'll be well on your way to becoming a proficient programmer and tackling even the most daunting projects with confidence.
Skills by the numbers
Pricing mix
Best Skills (2026)
- 1
Manage Headers (Grade A)Security-tested development skill for Claude AI. Grade A. Inspects and configures the security headers a Power Pages site sends to browsers — Content Security Policy, frame and clickjacking protection - 2
Using Git Worktrees (Grade A)Security-tested data-ai skill for Claude AI. Grade A. Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktre - 3
Ga4 Bigquery Schema (Grade A)Security-tested data-ai skill for Claude AI. Grade A. GA4 BigQuery Export Schema Reference — complete field reference, nested structures, query patterns, and performance tips - 4
Meta Capi (Grade A)Security-tested data-ai skill for Claude AI. Grade A. Meta Conversions API (CAPI) Setup Reference — architecture, event types, customer information hashing, deduplication, implementation examples, AEM - 5
Callees (Grade A)Security-tested development skill for Claude AI. Grade A. Lista o que uma funcao/metodo chama (call graph direto) - 6
Test Module Name (Grade A)Security-tested data-ai skill for Claude AI. Grade A. Name Haskell test modules after the module under test with a Spec suffix in the same namespace. Use when writing or reviewing Haskell test module - 7
Board Of Directors (Grade A)Security-tested data-ai skill for Claude AI. Grade A. Simulate a 5-member expert board deliberation for major decisions. Use when evaluating plans, architecture choices, feature designs, or any decisi - 8
Advpl Mvc Avancado (Grade A)Security-tested development skill for Claude AI. Grade A. MVC avançado via PE (Pontos de Entrada) — adicionar grids customizadas em telas MVC padrão (CNTA300/MATA070/MATA440/MATA460/FINA040 via *STRU) - 9DDocs Writer (Grade A)Security-tested devops skill for Claude AI. Grade A. **WORKFLOW SKILL** — Maintains repository documentation accuracy and freshness across the docs site, agent files, and changelog. WHEN: "update docs
- 10
Advpl Fundamentals (Grade A)Security-tested development skill for Claude AI. Grade A. Fundamentos ADVPL/TLPP — notação húngara (c/n/d/l/a/o/b/x/u), naming convention, escopos Local/Static/Private/Public, limite de 10 chars em .p
Manage Headers (Grade A)
Security-tested development skill for Claude AI. Grade A. Inspects and configures the security headers a Power Pages site sends to browsers — Content Security Policy, frame and clickjacking protection
Manage Headers (Grade A) is a security-tested development skill for Claude AI. It is designed to inspect and configure the security headers a Power Pages site sends to browsers, including Content Security Policy, frame and clickjacking protection, cross-origin sharing, cookie behavior, and related site settings. The skill identifies gaps and walks the user through fixes, making it useful for tasks such as reviewing headers, fixing CSP errors, controlling cross-origin access, hardening cookie settings, or checking whether browser settings are safe. It can be used when the user wants to achieve various security-related goals without specifically mentioning 'security headers.'
- Inspects current security headers
- Configures Content Security Policy
- Enables frame and clickjacking protection
- Manages cross-origin sharing and cookie behavior
Using Git Worktrees (Grade A)
Security-tested data-ai skill for Claude AI. Grade A. Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktre
Use when starting feature work that needs isolation from current workspace or before executing implementation plans. This skill creates isolated git worktrees with smart directory selection and safety verification. Git worktrees create isolated workspaces sharing the same repository, allowing work on multiple branches simultaneously without switching. The core principle is systematic directory selection plus safety verification, leading to reliable isolation. The directory selection process follows these steps: 1. Check for existing directories with priority order: hidden ".worktrees" directory, then "worktrees" directory. If found, use that one. 2. Check if a preference for a worktree directory is specified in the "CLAUDE.md" file. 3. If no directory exists and no CLAUDE.md preference is found, ask the user to choose a directory. The safety verification step is critical and involves checking if the chosen directory is ignored by Git. If not ignored, the skill will add the directory to the ".gitignore" file and commit the changes. Creation steps include: 1. Detecting the project name and creating a full path for the worktree. 2. Creating the worktree with a new branch. 3. Running project setup, which auto-detects and runs the appropriate setup commands (e.g., installing dependencies) based on the project type (Node.js, Rust, Python, or Go). 4. Verifying a clean baseline by running tests. If tests fail, report failures and ask whether to proceed or investigate. 5. Reporting the worktree location and its readiness to implement a feature.
- Isolated workspace creation
- Smart directory selection
- Safety verification
- Automated project setup
Ga4 Bigquery Schema (Grade A)
Security-tested data-ai skill for Claude AI. Grade A. GA4 BigQuery Export Schema Reference — complete field reference, nested structures, query patterns, and performance tips
The Ga4 Bigquery Schema is a security-tested data-ai skill for Claude AI, providing a complete field reference, nested structures, query patterns, and performance tips for the Google Analytics 4 BigQuery export schema. It is designed to help users understand the GA4 export schema, write correct BigQuery SQL queries against GA4 data, and follow performance best practices. The schema exports raw event data to BigQuery in a nested, denormalized format, with daily and intraday tables available. Each row represents a single event with nested fields for event parameters, user properties, and e-commerce data. The top-level fields include event_date, event_timestamp, event_name, event_params, and more. The event_params field is an array of event parameters stored as key-value pairs, with common event parameters including page_location and page_title. The schema also includes nested structures for user properties, device information, geographic information, and e-commerce transaction data. The Ga4 Bigquery Schema skill provides a reference guide to help users navigate the schema and write effective queries. It includes usage instructions, examples, and performance tips to help users get the most out of their GA4 data. By using this skill, users can gain a deeper understanding of their GA4 data and make data-driven decisions. The Ga4 Bigquery Schema is a valuable resource for anyone working with GA4 data in BigQuery, providing a comprehensive and detailed guide to the schema and its many features. With its security-tested and Grade A certification, users can trust that the skill is reliable and accurate. Overall, the Ga4 Bigquery Schema is a powerful tool for anyone looking to unlock the full potential of their GA4 data in BigQuery. Its comprehensive reference guide, nested structures, and performance tips make it an essential resource for anyone working with GA4 data.
- Complete field reference
- Nested structures
- Query patterns
- Performance tips
- Ready-to-use SQL examples
Meta Capi (Grade A)
Security-tested data-ai skill for Claude AI. Grade A. Meta Conversions API (CAPI) Setup Reference — architecture, event types, customer information hashing, deduplication, implementation examples, AEM
Meta Capi is a security-tested data-ai skill for Claude AI, providing a comprehensive reference for setting up Meta Conversions API (CAPI). It covers architecture, event types, customer information hashing, deduplication, implementation examples, and Aggregated Event Measurement. The tool helps users implement CAPI correctly, debug event tracking issues, improve Event Match Quality, and configure deduplication. It offers precise answers with ready-to-use code examples and can utilize Cogny MCP tools to inspect user configurations and provide contextual recommendations.
- CAPI architecture overview
- Event type parameters
- Customer information hashing
- Deduplication strategies
- Aggregated Event Measurement
- Node.js implementation example
Callees (Grade A)
Security-tested development skill for Claude AI. Grade A. Lista o que uma funcao/metodo chama (call graph direto)
Callees (Grade A) is a security-tested development skill for Claude AI. It identifies what a function or method calls, generating a direct call graph. The skill is useful for mapping dependencies of a function before extracting or moving it, identifying usage of restricted or deprecated functions, and estimating the impact of a refactoring. It also provides information about the callee, such as the function name, line number, and call type (native ERP, restricted, user function, or external). By using /plugadvpl:callees, users can input the name of a function to see what it calls, with options for formatting the output as a table or in markdown. It is part of the plugadvpl toolkit. This skill is a useful addition to a Claude AI's development capabilities, providing essential insights into the codebase.
- Direct call graph listing
- Function call type identification (native ERP, restricted, user function, external)
- Line of call site information
- Support for multiple output formats (e.g., Markdown)
Test Module Name (Grade A)
Security-tested data-ai skill for Claude AI. Grade A. Name Haskell test modules after the module under test with a Spec suffix in the same namespace. Use when writing or reviewing Haskell test module
Name Haskell test modules after the module under test with a Spec suffix in the same namespace. This is done to clearly separate library and test directories, making it easier to identify dependencies and relationships between modules. In particular, this best practice is beneficial when writing or reviewing Haskell test module names or test file organization. For example, a test module named Env.TypeSpec should be placed in the same namespace as the module it is testing, Env.Type. This ensures that the relationships between modules are clear, and it is particularly useful for modules with complex behavior, such as those that depend on multiple modules or have no dependencies on specific modules.
- Suggests test module names based on the module under test
- Appends 'Spec' to the module name
- Same namespace as the module under test
Board Of Directors (Grade A)
Security-tested data-ai skill for Claude AI. Grade A. Simulate a 5-member expert board deliberation for major decisions. Use when evaluating plans, architecture choices, feature designs, or any decisi
The Board of Directors skill simulates a 5-member expert board deliberation for major decisions. It evaluates plans, architecture choices, feature designs, or any decision requiring multi-perspective expert analysis. The board consists of five roles: Chief Architect (CA), Chief Product Officer (CPO), Chief Security Officer (CSO), Chief Operations Officer (COO), and Chief Experience Officer (CXO). Each director brings domain expertise and can challenge other directors' opinions. The deliberation process involves individual assessments, board discussions, and a final vote to reach a consensus.
- Simulates a 5-member expert board
- Individual assessments by each director
- Board discussion and rebuttals
- Final vote and consensus-building
- Role-based evaluation (CA, CPO, CSO, COO, CXO)
Advpl Mvc Avancado (Grade A)
Security-tested development skill for Claude AI. Grade A. MVC avançado via PE (Pontos de Entrada) — adicionar grids customizadas em telas MVC padrão (CNTA300/MATA070/MATA440/MATA460/FINA040 via *STRU)
Advpl Mvc Avancado (Grade A) is a security-tested development skill for Claude AI. It is designed for customizing MVC padrão (CNTA300/MATA070/MATA440/MATA460/FINA040 via *STRU) by adding grids, addTrigger em cascata, and validations while preserving original fields. It is used for customizing a routine MVC TOTVS via Ponto de Entrada (A300STRU, MA440STRU, etc.) and has features like validação cruzada between grids pai/filha em cadastro padrão, cálculo fiscal, and bloqueio condicional de edição baseado em status do registro mestre. It also supports integration with MATXFIS, refactoring MsNewGetDados, and adding custom fields.
- Customization of standard MVC routines via Entry Points (PE)
- Addition of custom grids and triggers to standard screens
- Implementation of specific business logic and validations
- Support for various TOTVS modules (e.g., MATA010, MATA070, MATA440)
Docs Writer (Grade A)
Security-tested devops skill for Claude AI. Grade A. **WORKFLOW SKILL** — Maintains repository documentation accuracy and freshness across the docs site, agent files, and changelog. WHEN: "update docs
Docs Writer (Grade A) is a workflow skill that maintains the accuracy and freshness of repository documentation. It is designed to work with Claude AI and has undergone security testing. The skill ensures that documentation is up-to-date across the docs site, agent files, and changelog. It appears to be tailored for devops environments, suggesting its use case is for development and operations teams. The skill likely automates or streamlines the process of keeping documentation current, which can be a time-consuming task, especially in rapidly changing environments. The fact that it is graded as 'Grade A' implies a high level of proficiency or quality in its performance. However, without more specific information, the exact capabilities, strengths, and limitations of Docs Writer (Grade A) are not clear. In terms of workflow integration, the skill is triggered by the command 'update docs', indicating its role in responding to changes or updates in the documentation. This suggests a reactive approach to documentation maintenance, where the skill ensures that all related documents are updated accordingly. Overall, Docs Writer (Grade A) seems to play a crucial role in maintaining the integrity and reliability of documentation in a development or devops setting, ensuring that teams have access to accurate and current information.
- Documentation accuracy maintenance
- Automated updates
- Repository synchronization
- Changelog management
- Agent file updates
Advpl Fundamentals (Grade A)
Security-tested development skill for Claude AI. Grade A. Fundamentos ADVPL/TLPP — notação húngara (c/n/d/l/a/o/b/x/u), naming convention, escopos Local/Static/Private/Public, limite de 10 chars em .p
AdvPL Fundamentals (Grade A) is a security-tested development skill for Claude AI. It focuses on fundamentals of ADVPL/TLPP, including Hungarian notation, naming convention, local and global scopes, and name length limits. ADVPL (Advanced Protheus Language) and its successor TLPP are proprietary languages derived from Clipper/xBase. They have strong conventions that are not optional in high-quality Protheus code. This skill is essential for Protheus developers, especially when creating or refactoring variables and functions. The skill addresses common pitfalls, such as the silent bug in ADVPL classic, where a variable's name truncates to 10 characters, and the importance of using the correct scope for variables. It covers when to use local, static, private, and public variables, including rules of thumb for their visibility and lifetime. The skill is designed to be a practical guide for developers to avoid common mistakes and improve their ADVPL/TLPP coding skills.
- Hungarian notation
- Naming conventions
- Local/Static/Private/Public scopes
- 10-character limit for .prw/.prx files
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