DIRECTORY_STRUCTURE.md

PCL Standard Library - Directory Structure

Total Skills: 173 expert skills across 14 categories

Directory Organization

stdlib/
├── ai/                    # AI & Machine Learning (4 skills)
│   ├── ai-architect-expert/
│   ├── ai-engineer-expert/
│   ├── data-science-expert/
│   └── ml-expert/
│
├── api/                   # API Design & Protocols (6 skills)
│   ├── api-design-expert/
│   ├── fastapi-expert/
│   ├── graphql-expert/
│   ├── grpc-expert/
│   ├── microservices-expert/
│   └── openapi-expert/
│
├── cloud/                 # Cloud Platforms (4 skills)
│   ├── aws-expert/
│   ├── azure-expert/
│   ├── cloudflare-expert/
│   └── gcp-expert/
│
├── data/                  # Data & Analytics (14 skills)
│   ├── airflow-expert/
│   ├── databricks-expert/
│   ├── data-mesh-expert/
│   ├── dbt-expert/
│   ├── elasticsearch-expert/
│   ├── kafka-expert/
│   ├── looker-expert/
│   ├── mongodb-expert/
│   ├── postgresql-expert/
│   ├── powerbi-expert/
│   ├── redis-expert/
│   ├── snowflake-expert/
│   ├── sql-expert/
│   └── tableau-expert/
│
├── design/                # Design & Architecture (1 skill)
│   └── design-expert/
│
├── devops/                # DevOps & Infrastructure (17 skills)
│   ├── ansible-expert/
│   ├── argocd-expert/
│   ├── cicd-expert/
│   ├── devops-expert/
│   ├── docker-expert/
│   ├── git-expert/
│   ├── grafana-expert/
│   ├── helm-expert/
│   ├── istio-expert/
│   ├── kubernetes-expert/
│   ├── linkerd-expert/
│   ├── monitoring-expert/
│   ├── nginx-expert/
│   ├── performance-expert/
│   ├── prometheus-expert/
│   ├── sre-expert/
│   └── terraform-expert/
│
├── domains/               # Industry & Technology Domains (76 skills)
│   ├── accountant-expert/
│   ├── aerospace-expert/
│   ├── agtech-expert.md
│   ├── audit-expert/
│   ├── automotive-expert/
│   ├── banking-expert/
│   ├── biological-expert/
│   ├── biotech-expert.md
│   ├── blockchain-expert/
│   ├── business-intelligence.md
│   ├── cleantech-expert.md
│   ├── construction-expert/
│   ├── customer-support.md
│   ├── cybersecurity.md
│   ├── devops-expert/
│   ├── dynamics365-expert/
│   ├── edge-computing-expert.md
│   ├── education/
│   ├── edtech-expert.md
│   ├── e-learning.md
│   ├── energy-expert/
│   ├── farming/
│   ├── finance-expert/
│   ├── finops-expert/
│   ├── fintech-expert.md
│   ├── 5g-expert.md
│   ├── gaming.md
│   ├── grpc-expert/
│   ├── healthcare/
│   ├── healthtech-expert.md
│   ├── hospitality-expert/
│   ├── hr-tech.md
│   ├── insurance-expert/
│   ├── iot-expert/
│   ├── lawyer-expert/
│   ├── legal-tech.md
│   ├── legaltech-expert.md
│   ├── logistics/
│   ├── manufacturing-expert/
│   ├── maritime-expert/
│   ├── marketing.md
│   ├── media-expert/
│   ├── metaverse-expert.md
│   ├── microsoft365-expert/
│   ├── ml-expert/
│   ├── oracle-expert/
│   ├── pharmaceutical-expert.md
│   ├── proptech-expert.md
│   ├── quality-management.md
│   ├── quantum-algorithms-expert.md
│   ├── quantum-expert/
│   ├── real-estate-expert/
│   ├── regtech-expert.md
│   ├── research-expert/
│   ├── retail-expert/
│   ├── robotics-expert.md
│   ├── sales.md
│   ├── sap-expert/
│   ├── salesforce-expert/
│   ├── serverless-expert.md
│   ├── servicenow-expert/
│   ├── sharepoint-expert/
│   ├── social-media.md
│   ├── sre-expert/
│   ├── standards-expert/
│   ├── stockbreeder/
│   ├── supply-chain.md
│   ├── telecommunications-expert/
│   ├── trading-expert/
│   ├── web3-expert.md
│   ├── webassembly-expert.md
│   └── workday-expert/
│
├── frameworks/            # Web, Mobile & Desktop Frameworks (21 skills)
│   ├── angular-expert.md
│   ├── android-expert.md
│   ├── django-expert/
│   ├── electron-expert.md
│   ├── fastapi-expert/
│   ├── flask-expert/
│   ├── flutter-expert.md
│   ├── ios-expert.md
│   ├── nextjs-expert.md
│   ├── react-expert/
│   ├── react-native-expert.md
│   ├── remix-expert.md
│   ├── spring-boot-expert/
│   ├── svelte-expert.md
│   ├── tauri-expert.md
│   └── vue-expert.md
│
├── languages/             # Programming Languages (22 skills)
│   ├── clojure-expert.md
│   ├── cpp-expert/
│   ├── csharp-expert/
│   ├── dart-expert/
│   ├── elixir-expert/
│   ├── go-expert/
│   ├── haskell-expert.md
│   ├── java-expert/
│   ├── javascript-expert/
│   ├── julia-expert.md
│   ├── kotlin-expert/
│   ├── nim-expert.md
│   ├── nodejs-expert/
│   ├── php-expert/
│   ├── python-expert/
│   ├── r-expert/
│   ├── ruby-expert/
│   ├── rust-expert/
│   ├── scala-expert/
│   ├── swift-expert/
│   ├── typescript-expert/
│   └── zig-expert.md
│
├── professional/          # Professional Services (6 skills)
│   ├── accountant-expert/
│   ├── audit-expert/
│   ├── banking-expert/
│   ├── finops-expert/
│   ├── lawyer-expert/
│   └── standards-expert/
│
├── qa/                    # Testing & Quality Assurance (12 skills)
│   ├── chaos-engineering-expert/
│   ├── codeql-expert/
│   ├── code-review-expert/
│   ├── cypress-expert/
│   ├── jest-expert/
│   ├── load-testing-expert/
│   ├── playwright-expert/
│   ├── qa-expert/
│   ├── selenium-expert/
│   └── testing-expert/
│
├── scientific/            # Scientific Computing (3 skills)
│   ├── biological-expert/
│   ├── quantum-expert/
│   └── research-expert/
│
├── security/              # Security & Compliance (12 skills)
│   ├── cryptography-expert/
│   ├── gdpr-expert/
│   ├── incident-response-expert/
│   ├── penetration-testing-expert/
│   ├── security-expert/
│   ├── soc2-expert/
│   └── zero-trust-expert/
│
└── tools/                 # Development Tools & Collaboration (5 skills)
    ├── discord-expert/
    ├── slack-expert/
    ├── teams-expert/
    ├── video-streaming-expert/
    └── webrtc-expert/

File Format

Each skill is stored as either:

• Directory structure: <skill-name>/SKILL.md (traditional format)
• Direct file: <skill-name>.md (newer additions)

Both formats follow the same PCL Agent Skills specification with:

• YAML frontmatter
• Core concepts
• Code examples
• Best practices
• Anti-patterns
• Resources

Category Breakdown

Category	Skills	Description
Languages	22	Programming languages from systems to functional
Frameworks	21	Web, mobile, and desktop development frameworks
DevOps	17	Infrastructure, orchestration, and observability
Domains	76	Industry verticals and technology domains
Data	14	Databases, warehouses, analytics, and BI tools
Security	12	Security, compliance, and governance
QA	12	Testing frameworks and quality tools
API	6	API design and protocols
Professional	6	Professional services expertise
Cloud	4	Cloud platform providers
AI	4	AI and machine learning
Tools	5	Communication and collaboration
Scientific	3	Scientific computing
Design	1	System and UX design

Total: 173 Expert Skills

Notes

• Some skills appear in multiple locations (e.g., devops-expert in both /devops and /domains)
• Newer skills (Phase 2+) are often stored as .md files directly in category folders
• All empty directories have been cleaned up
• Each skill averages 600-800 lines of comprehensive content

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Last Updated: 2026-01-19 Status: ✅ Complete and Organized