chore(skills): add version/author/tags frontmatter to all 60 skills (#86)

The `librefang` dashboard's federated catalog UI surfaces every
optional SKILL.md frontmatter field — version, author, and tags — but
the existing skills only carry `name` + `description`, so the catalog
cards render visually empty:

  ┌────────────────┐
  │ ansible        │  ← no version, no author, no tags shown
  │ FangHub        │
  │ Ansible auto…  │
  └────────────────┘

Populate the three optional fields across every skill so the catalog
fills out as designed:

  ┌─────────────────────┐
  │ ansible             │
  │ skill · librefang   │
  │ · v0.1.0            │
  │ Ansible auto…       │
  │ [devops][automation]│
  │ [infra]             │
  └─────────────────────┘

Choices
- author = `librefang`. Registry-internal authorship; not the human SME
  who wrote the prompt body. Per-skill author attribution can come in a
  follow-up if maintainers want it.
- version = `0.1.0` baseline. Future content updates bump per-skill.
- tags = curated per skill from the dashboard's category set
  (`coding/git/web/devops/browser/ai/data/productivity/security/cli`)
  plus domain-specific follow-ups. First tag is the primary category.

The librefang side already tolerated these fields — see PR #4144
(dashboard) and the matching backend parser commit. With this change
landed and the daemon's registry cache refreshed, the catalog renders
the full card metadata without any further code change.

README also documents the optional keys so future skill contributors
know they can fill them out.

skills/README.md

@@ -25,13 +25,28 @@ skills/
 ---
 name: rust-expert
 description: "Rust programming expert for ownership, lifetimes, async/await, traits, and unsafe code"
+version: 0.1.0
+author: librefang
+tags: [coding, language]
 ---
 # Rust Programming Expertise
 
 You are an expert Rust developer with deep understanding of the ownership system...
 ```
 
-The frontmatter must contain `name` and `description`. The Markdown body becomes the injected prompt.
+The frontmatter must contain `name` and `description`. The other keys are
+optional and the registry parser tolerates their absence:
+
+- `version` (default `null`) — semver string. Bump per content update.
+- `author`  (default `null`) — owner of the prompt body. Use `librefang`
+  for first-party skills under this registry.
+- `tags`    (default `[]`)  — inline YAML list. The dashboard's catalog
+  surfaces these as filter chips and as visible tags on each skill
+  card. Standard buckets: `coding`, `git`, `web`, `devops`, `browser`,
+  `ai`, `data`, `productivity`, `security`, `cli`. Add domain-specific
+  follow-ups freely (e.g. `[devops, kubernetes, k8s]`).
+
+The Markdown body after the closing `---` becomes the injected prompt.
 
 ### skill.toml format (optional)
 
@@ -188,7 +203,7 @@ librefang skill test ./skills/meeting-agenda \
 
 ## Adding a New Skill
 
-1. Create `skills/<name>/SKILL.md` with frontmatter (`name`, `description`) and the prompt body.
+1. Create `skills/<name>/SKILL.md` with frontmatter (`name`, `description`, plus optional `version`, `author`, `tags`) and the prompt body.
 2. If you need `[runtime]`, `[input]`, or structured metadata, add `skills/<name>/skill.toml`.
 3. Add implementation files (`main.py`, etc.) when `runtime` is not `promptonly`.
 4. Run `python scripts/validate.py`.

skills/ansible/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: ansible
 description: "Ansible automation expert for playbooks, roles, inventories, and infrastructure management"
+version: 0.1.0
+author: librefang
+tags: [devops, automation, infra]
 ---
 # Ansible Infrastructure Automation
 

skills/api-tester/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: api-tester
 description: API testing expert for curl, REST, GraphQL, authentication, and debugging
+version: 0.1.0
+author: librefang
+tags: [development, testing, api]
 ---
 # API Testing Expert
 

skills/aws/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: aws
 description: AWS cloud services expert for EC2, S3, Lambda, IAM, and AWS CLI
+version: 0.1.0
+author: librefang
+tags: [devops, cloud, infra]
 ---
 # AWS Cloud Services Expert
 

skills/azure/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: azure
 description: "Microsoft Azure expert for az CLI, AKS, App Service, and cloud infrastructure"
+version: 0.1.0
+author: librefang
+tags: [devops, cloud, infra]
 ---
 # Microsoft Azure Cloud Expertise
 

skills/ci-cd/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: ci-cd
 description: "CI/CD pipeline expert for GitHub Actions, GitLab CI, Jenkins, and deployment automation"
+version: 0.1.0
+author: librefang
+tags: [devops, ci, automation]
 ---
 # CI/CD Pipeline Engineering
 

skills/code-reviewer/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: code-reviewer
 description: Code review specialist focused on patterns, bugs, security, and performance
+version: 0.1.0
+author: librefang
+tags: [coding, quality]
 ---
 # Code Review Specialist
 

skills/compliance/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: compliance
 description: "Compliance expert for SOC 2, GDPR, HIPAA, PCI-DSS, and security frameworks"
+version: 0.1.0
+author: librefang
+tags: [security, governance]
 ---
 # Compliance Expert
 

skills/confluence/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: confluence
 description: "Confluence wiki expert for page structure, spaces, macros, and content organization"
+version: 0.1.0
+author: librefang
+tags: [productivity, documentation]
 ---
 # Confluence Expert
 

skills/crypto-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: crypto-expert
 description: "Cryptography expert for TLS, symmetric/asymmetric encryption, hashing, and key management"
+version: 0.1.0
+author: librefang
+tags: [security, cryptography]
 ---
 # Applied Cryptography Expertise
 

skills/css-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: css-expert
 description: "CSS expert for flexbox, grid, animations, responsive design, and modern layout techniques"
+version: 0.1.0
+author: librefang
+tags: [web, frontend, css]
 ---
 # CSS Expert
 

skills/data-analyst/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: data-analyst
 description: Data analysis expert for statistics, visualization, pandas, and exploration
+version: 0.1.0
+author: librefang
+tags: [data, analytics]
 ---
 # Data Analysis Expert
 

skills/data-pipeline/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: data-pipeline
 description: "Data pipeline expert for ETL, Apache Spark, Airflow, dbt, and data quality"
+version: 0.1.0
+author: librefang
+tags: [data, etl, pipeline]
 ---
 # Data Pipeline Expert
 

skills/docker/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: docker
 description: Docker expert for containers, Compose, Dockerfiles, and debugging
+version: 0.1.0
+author: librefang
+tags: [devops, containers]
 ---
 # Docker Expert
 

skills/elasticsearch/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: elasticsearch
 description: "Elasticsearch expert for queries, mappings, aggregations, index management, and cluster operations"
+version: 0.1.0
+author: librefang
+tags: [data, search]
 ---
 # Elasticsearch Expert
 

skills/email-writer/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: email-writer
 description: "Professional email writing expert for tone, structure, clarity, and business communication"
+version: 0.1.0
+author: librefang
+tags: [productivity, writing]
 ---
 # Professional Email Writer
 

skills/figma-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: figma-expert
 description: "Figma design expert for components, auto-layout, design systems, and developer handoff"
+version: 0.1.0
+author: librefang
+tags: [productivity, design]
 ---
 # Figma Expert
 

skills/gcp/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: gcp
 description: "Google Cloud Platform expert for gcloud CLI, GKE, Cloud Run, and managed services"
+version: 0.1.0
+author: librefang
+tags: [devops, cloud, infra]
 ---
 # Google Cloud Platform Expertise
 

skills/git-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: git-expert
 description: Git operations expert for branching, rebasing, conflicts, and workflows
+version: 0.1.0
+author: librefang
+tags: [git, devtools]
 ---
 # Git Operations Expert
 

skills/github/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: github
 description: GitHub operations expert for PRs, issues, code review, Actions, and gh CLI
+version: 0.1.0
+author: librefang
+tags: [git, devtools]
 ---
 # GitHub Operations Expert
 

skills/golang-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: golang-expert
 description: "Go programming expert for goroutines, channels, interfaces, modules, and concurrency patterns"
+version: 0.1.0
+author: librefang
+tags: [coding, language]
 ---
 # Go Programming Expertise
 

skills/graphql-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: graphql-expert
 description: "GraphQL expert for schema design, resolvers, subscriptions, and performance optimization"
+version: 0.1.0
+author: librefang
+tags: [api, graphql]
 ---
 # GraphQL Expert
 

skills/helm/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: helm
 description: "Helm chart expert for Kubernetes package management, templating, and dependency management"
+version: 0.1.0
+author: librefang
+tags: [devops, kubernetes]
 ---
 # Helm Chart Engineering
 

skills/interview-prep/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: interview-prep
 description: "Technical interview preparation expert for algorithms, system design, and behavioral questions"
+version: 0.1.0
+author: librefang
+tags: [productivity, career]
 ---
 # Technical Interview Preparation Expert
 

skills/jira/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: jira
 description: Jira project management expert for issues, sprints, workflows, and reporting
+version: 0.1.0
+author: librefang
+tags: [productivity, project-management]
 ---
 # Jira Project Management Expert
 

skills/kubernetes/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: kubernetes
 description: Kubernetes operations expert for kubectl, pods, deployments, and debugging
+version: 0.1.0
+author: librefang
+tags: [devops, containers, k8s]
 ---
 # Kubernetes Operations Expert
 

skills/linear-tools/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: linear-tools
 description: "Linear project management expert for issues, cycles, projects, and workflow automation"
+version: 0.1.0
+author: librefang
+tags: [productivity, project-management]
 ---
 # Linear Project Management Expertise
 

skills/linux-networking/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: linux-networking
 description: "Linux networking expert for iptables, nftables, routing, DNS, and network troubleshooting"
+version: 0.1.0
+author: librefang
+tags: [devops, networking, linux]
 ---
 # Linux Networking Expert
 

skills/llm-finetuning/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: llm-finetuning
 description: "LLM fine-tuning expert for LoRA, QLoRA, dataset preparation, and training optimization"
+version: 0.1.0
+author: librefang
+tags: [ai, ml, training]
 ---
 # LLM Fine-Tuning Expert
 

skills/ml-engineer/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: ml-engineer
 description: "Machine learning engineer expert for PyTorch, scikit-learn, model evaluation, and MLOps"
+version: 0.1.0
+author: librefang
+tags: [ai, ml]
 ---
 # Machine Learning Engineer
 

skills/mongodb/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: mongodb
 description: MongoDB operations expert for queries, aggregation pipelines, indexes, and schema design
+version: 0.1.0
+author: librefang
+tags: [data, database, nosql]
 ---
 # MongoDB Operations Expert
 

skills/nextjs-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: nextjs-expert
 description: "Next.js expert for App Router, SSR/SSG, API routes, middleware, and deployment"
+version: 0.1.0
+author: librefang
+tags: [web, frontend, react]
 ---
 # Next.js Expert
 

skills/nginx/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: nginx
 description: "Nginx configuration expert for reverse proxy, load balancing, TLS, and performance tuning"
+version: 0.1.0
+author: librefang
+tags: [devops, web-server]
 ---
 # Nginx Configuration and Performance
 

skills/notion/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: notion
 description: Notion workspace management and content creation specialist
+version: 0.1.0
+author: librefang
+tags: [productivity, documentation]
 ---
 # Notion Workspace Management and Content Creation
 

skills/oauth-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: oauth-expert
 description: "OAuth 2.0 and OpenID Connect expert for authorization flows, PKCE, and token management"
+version: 0.1.0
+author: librefang
+tags: [security, authentication]
 ---
 # OAuth and OpenID Connect Expert
 

skills/openapi-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: openapi-expert
 description: "OpenAPI/Swagger expert for API specification design, validation, and code generation"
+version: 0.1.0
+author: librefang
+tags: [api, documentation]
 ---
 # OpenAPI Expert
 

skills/pdf-reader/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: pdf-reader
 description: PDF content extraction and analysis specialist
+version: 0.1.0
+author: librefang
+tags: [productivity, documents]
 ---
 # PDF Content Extraction and Analysis
 

skills/postgres-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: postgres-expert
 description: "PostgreSQL expert for query optimization, indexing, extensions, and database administration"
+version: 0.1.0
+author: librefang
+tags: [data, database, sql]
 ---
 # PostgreSQL Database Expertise
 

skills/presentation/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: presentation
 description: "Presentation expert for slide structure, storytelling, visual design, and audience engagement"
+version: 0.1.0
+author: librefang
+tags: [productivity, presentation]
 ---
 # Presentation Expert
 

skills/project-manager/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: project-manager
 description: "Project management expert for Agile, estimation, risk management, and stakeholder communication"
+version: 0.1.0
+author: librefang
+tags: [productivity, project-management]
 ---
 # Project Management Expert
 

skills/prometheus/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: prometheus
 description: "Prometheus monitoring expert for PromQL, alerting rules, Grafana dashboards, and observability"
+version: 0.1.0
+author: librefang
+tags: [devops, monitoring, observability]
 ---
 # Prometheus Monitoring and Observability
 

skills/prompt-engineer/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: prompt-engineer
 description: "Prompt engineering expert for chain-of-thought, few-shot learning, evaluation, and LLM optimization"
+version: 0.1.0
+author: librefang
+tags: [ai, prompting]
 ---
 # Prompt Engineering Expertise
 

skills/python-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: python-expert
 description: "Python expert for stdlib, packaging, type hints, async/await, and performance optimization"
+version: 0.1.0
+author: librefang
+tags: [coding, language]
 ---
 # Python Programming Expertise
 

skills/react-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: react-expert
 description: "React expert for hooks, state management, Server Components, and performance optimization"
+version: 0.1.0
+author: librefang
+tags: [web, frontend, react]
 ---
 # React Development Expertise
 

skills/redis-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: redis-expert
 description: "Redis expert for data structures, caching patterns, Lua scripting, and cluster operations"
+version: 0.1.0
+author: librefang
+tags: [data, cache, database]
 ---
 # Redis Data Store Expertise
 

skills/regex-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: regex-expert
 description: Regular expression expert for crafting, debugging, and explaining patterns
+version: 0.1.0
+author: librefang
+tags: [coding, regex]
 ---
 # Regular Expression Expert
 

skills/rust-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: rust-expert
 description: "Rust programming expert for ownership, lifetimes, async/await, traits, and unsafe code"
+version: 0.1.0
+author: librefang
+tags: [coding, language]
 ---
 # Rust Programming Expertise
 

skills/security-audit/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: security-audit
 description: "Security audit expert for OWASP Top 10, CVE analysis, code review, and penetration testing methodology"
+version: 0.1.0
+author: librefang
+tags: [security, audit]
 ---
 # Security Audit and Code Review
 

skills/sentry/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: sentry
 description: Sentry error tracking and debugging specialist
+version: 0.1.0
+author: librefang
+tags: [devops, monitoring, errors]
 ---
 # Sentry Error Tracking and Debugging
 

skills/shell-scripting/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: shell-scripting
 description: "Shell scripting expert for Bash, POSIX compliance, error handling, and automation"
+version: 0.1.0
+author: librefang
+tags: [cli, shell, scripting]
 ---
 # Shell Scripting Expertise
 

skills/slack-tools/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: slack-tools
 description: Slack workspace management and automation specialist
+version: 0.1.0
+author: librefang
+tags: [productivity, communication]
 ---
 # Slack Workspace Management and Automation
 

skills/sql-analyst/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: sql-analyst
 description: SQL query expert for optimization, schema design, and data analysis
+version: 0.1.0
+author: librefang
+tags: [data, sql]
 ---
 # SQL Query Expert
 

skills/sqlite-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: sqlite-expert
 description: "SQLite expert for WAL mode, query optimization, embedded patterns, and advanced features"
+version: 0.1.0
+author: librefang
+tags: [data, database, sql]
 ---
 # SQLite Expert
 

skills/sysadmin/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: sysadmin
 description: System administration expert for Linux, macOS, Windows, services, and monitoring
+version: 0.1.0
+author: librefang
+tags: [devops, linux, sysadmin]
 ---
 # System Administration Expert
 

skills/technical-writer/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: technical-writer
 description: "Technical writing expert for API docs, READMEs, ADRs, and developer documentation"
+version: 0.1.0
+author: librefang
+tags: [productivity, writing]
 ---
 # Technical Writing Expertise
 

skills/terraform/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: terraform
 description: Terraform IaC expert for providers, modules, state management, and planning
+version: 0.1.0
+author: librefang
+tags: [devops, iac, infra]
 ---
 # Terraform IaC Expert
 

skills/typescript-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: typescript-expert
 description: "TypeScript expert for type system, generics, utility types, and strict mode patterns"
+version: 0.1.0
+author: librefang
+tags: [coding, language]
 ---
 # TypeScript Type System Mastery
 

skills/vector-db/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: vector-db
 description: "Vector database expert for embeddings, similarity search, RAG patterns, and indexing strategies"
+version: 0.1.0
+author: librefang
+tags: [data, ai, search]
 ---
 # Vector Database Expert
 

skills/wasm-expert/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: wasm-expert
 description: "WebAssembly expert for WASI, component model, Rust/C compilation, and browser integration"
+version: 0.1.0
+author: librefang
+tags: [coding, wasm]
 ---
 # WebAssembly Expert
 

skills/web-search/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: web-search
 description: Web search and research specialist for finding and synthesizing information
+version: 0.1.0
+author: librefang
+tags: [productivity, search]
 ---
 # Web Search and Research Specialist
 

skills/writing-coach/SKILL.md

@@ -1,6 +1,9 @@
 ---
 name: writing-coach
 description: Writing improvement specialist for grammar, style, clarity, and structure
+version: 0.1.0
+author: librefang
+tags: [productivity, writing]
 ---
 # Writing Coach