Astro Performance Playbook workflow skill. Use this skill when the user needs Astro-specific performance optimizations for 95+ Lighthouse scores. Covers critical CSS inlining, compression, font loading, and LCP optimization. Use when optimizing Astro site performance, improving Astro Lighthouse scores, or configuring astro-critters. Do NOT use for non-Astro sites (use perf-web-optimization or core-web-vitals) or running Lighthouse audits (use perf-lighthouse) and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

Lighthouse Audits workflow skill. Use this skill when the user needs Run Lighthouse audits locally via CLI or Node API, parse and interpret reports, and set performance budgets. Use when measuring site performance, understanding Lighthouse scores, setting up budgets, or integrating audits into CI. Triggers on: lighthouse, run lighthouse, lighthouse score, performance audit, performance budget. Do NOT use for fixing specific performance issues (use perf-web-optimization or core-web-vitals) or Astro-specific optimization (use perf-astro) and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

Web Performance Optimization workflow skill. Use this skill when the user needs Optimize web performance: bundle size, images, caching, lazy loading, and overall page speed. Use when site is slow, reducing bundle size, fixing layout shifts, improving Time to Interactive, or optimizing for Lighthouse scores. Triggers on: web performance, bundle size, page speed, slow site, lazy loading. Do NOT use for Core Web Vitals-specific fixes (use core-web-vitals), running Lighthouse audits (use perf-lighthouse), or Astro-specific optimization (use perf-astro) and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

Playwright Browser Automation workflow skill. Use this skill when the user needs Complete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use when user wants to test websites, automate browser interactions, validate web functionality, or perform any browser-based testing. Do NOT use for quick page debugging or network inspection (use chrome-devtools instead) and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

prompt-engineer workflow skill. Use this skill when the user needs prompts transformed into clearer, safer, and more reliable prompts while preserving upstream workflow context, copied support files, and provenance before merge or handoff.

Prompt Engineering Patterns workflow skill. Use this skill when the user needs advanced prompt engineering techniques to improve LLM performance, reliability, and controllability through clear instructions, grounded context, output contracts, examples, and eval-driven iteration.

PydanticAI \u2014 Typed AI Agents in Python workflow skill. Use this skill when the user needs to build production-ready AI agents with PydanticAI using type-safe tool calls, structured outputs, dependency injection, testing, and provider-aware model configuration.

Python Project Scaffolding workflow skill. Use this skill when the user needs a production-ready Python project scaffold with modern packaging, uv-based environment management, typed code, testing, and project-type-specific structure for libraries, CLIs, FastAPI services, or Django applications.

React Native Expert workflow skill. Use this skill when the user needs Senior React Native and Expo engineer for building production-ready cross-platform mobile apps. Use when building React Native components, implementing navigation with Expo Router, optimizing list and scroll performance, working with animations via Reanimated, handling platform-specific code (iOS/Android), integrating native modules, or structuring Expo projects. Triggers on React Native, Expo, mobile app, iOS app, Android app, cross-platform, native module, FlatList, FlashList, LegendList, Reanimated, Expo Router, mobile performance, app store. Do NOT use for Flutter, web-only React, or backend Node.js tasks and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

The Fool workflow skill. Use this skill when the user needs challenging ideas, plans, decisions, or proposals. Invoke to play devil's advocate, run a pre-mortem, red team, stress test assumptions, audit evidence quality, or find blind spots before committing. Do NOT use for building plans, making decisions, or generating solutions \\u2014 this skill only challenges and critiques and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

This public intake copy packages `packages/skills-catalog/skills/(development)/tlc-spec-driven` from `https://github.com/tech-leads-club/agent-skills` into the native Omni Skills editorial shape witho

Create unified specification packages across Business, Development, and Design teams. Staged elaboration (L0 Vision → L1 Requirements → L2 Team Detail → L3 Acceptance Criteria) to build shared understanding. Does not write code.

Terminal UI construction, CLI development, and dev-tool integration (linter/test-runner/build-tool wiring). Use when CLI/TUI design or implementation is needed. Language-agnostic — supports Node.js, Python, Go, and Rust.

Specialist orchestrating codex exec / gemini CLI through dual paradigms — COMPETE (multi-variant comparison, select best) and COLLABORATE (decompose tasks across engines, integrate). Supports Solo/Team/Quick execution modes.

Specification compliance verification agent. Extracts acceptance criteria from specs, adversarially verifies implementation conformance. Generates BDD scenarios, traceability matrices, and compliance reports with evidence-based verdicts. Use when spec-based quality gates are needed. Does not write code.

Red team engineering agent. Designs attack scenarios, builds threat models, applies MITRE ATT&CK/OWASP frameworks, runs Purple Team exercises, and performs AI/LLM red teaming. Use when adversarial security validation is needed.

Standards compliance assessment and gap analysis agent. Evaluates codebases against OWASP/WCAG/OpenAPI/ISO 25010 and other standards, detects violations, and provides actionable remediation with specific citations.

Visualization agent that converts code, designs, and context into Mermaid diagrams, ASCII art, or draw.io. Reverse-generates flowcharts, sequence diagrams, state diagrams, class diagrams, ER diagrams from existing code, creates from specs, or analyzes and improves existing diagrams. Also handles Echo-driven Journey Maps, Emotion Score visualization, Internal Persona profiles, Team Structure, and DX Journey visualization. Use when diagramming or visualization is needed.

Privacy engineering and data governance agent. PII detection, data flow mapping, consent management patterns, GDPR/CCPA-compliant code implementation, and DPIA facilitation. Use when privacy-by-design implementation is needed.

Cryptographic architecture design: algorithm selection, key management, E2EE, KMS integration, signature verification, and TLS configuration.

Automated feature demo video production using Playwright E2E tests. Provides scenario design, recording configuration, implementation patterns, and quality checklists. Use when product demos, feature walkthrough videos, or onboarding materials are needed.

Pixel art specialist agent. Generates pixel art as code (SVG/Canvas/Phaser 3/Pillow/CSS). Also supports SVG generation delegation to Gemini CLI.

A/B test design, hypothesis documentation, sample size calculation, feature flag implementation, and statistical significance analysis. CUPED variance reduction, SRM detection, switchback experiments. Use when hypothesis validation is needed.

Landing page construction specialist. Handles structure design, conversion strategy, CTA optimization, and responsive design end-to-end. Use when creating or improving landing pages.

Regex/parser/DSL design specialist for grammar authoring and ReDoS-safe regex. Not for REST APIs (Gateway) or DB schemas (Schema).

Repository structure design, optimization, and audit. Handles directory design, docs/ layout (PRD, specs, design docs, checklists, ADR), test organization, script management, anti-pattern detection, and migration planning for existing repositories. Use when repository structure design or improvement is needed.

Business strategy simulation agent specializing in short/mid/long-term scenario planning from financial, market, and competitive data. Applies SWOT/PESTLE/Porter analysis, KPI forecasting, and strategic roadmap generation. Does not write code.

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Multi-perspective deliberation agent (Logos/Pathos/Sophia) for architecture arbitration, trade-off resolution, Go/No-Go verdicts, and strategic decisions. Does not write code. Don't use for architecture design (Atlas), requirement gathering (Accord), code comparison (Arena), or implementation (Builder).

Universal combinatorial analysis agent that controls combination explosion across multi-dimensional axes and values. Selects minimum coverage sets, generates execution plans, and prioritizes combinations. Covers test, deploy, UX, risk, compatibility, and all domains. Does not write code.

Test data and fixture generation agent. Use when factory pattern design, boundary value data generation, synthetic data generation, or seed data management is needed.

Document format conversion (Markdown, Word, Excel, PDF, HTML). Converts specifications from Scribe and reports from Harvest into distributable formats. Also generates reusable conversion scripts.

Browser automation agent using Playwright and Chrome DevTools to complete tasks. Automates data collection, form interaction, screenshot capture, and network monitoring. Task completion focus (vs Voyager for E2E testing). Use when browser automation is needed.

AI/ML design and evaluation specialist covering prompt engineering, RAG design, LLM application patterns, AI safety, evaluation frameworks, MLOps, and cost optimization.

Internationalization (i18n) and localization (l10n) specialist. Hardcoded string extraction to t() functions, Intl API integration for date/currency/number formatting, translation key structure management, and RTL layout support. Use when multi-language support or i18n setup is needed.

OWASP ZAP/Burp Suite/Nuclei integration, penetration test planning, DAST execution, and vulnerability scanning. Use when dynamic security testing, penetration testing, or runtime vulnerability validation is needed. Complements Sentinel static analysis.

UX writing specialist for user-facing text. Handles microcopy, error messages, voice and tone design, onboarding copy, and accessibility text. Use when UX writing or content strategy is needed.

KPI definition, tracking event design, and dashboard specification. North Star Metric, funnel analysis, and cohort analysis design. GA4/Amplitude/Mixpanel/PostHog integration. Use when metrics foundation is needed.

Edge-case test addition, flaky test repair, and coverage improvement. Use when test gaps need filling, reliability needs raising, or regression tests need adding. Multi-language support (JS/TS, Python, Go, Rust, Java).

Priority quantification agent. Scores and orders competing items using ICE/RICE/WSJF/MoSCoW/Cost of Delay/Kano frameworks. Does not write code.

Git history investigation, regression root cause analysis, and code archaeology specialist. Time-travels through commit history to uncover truth. Use when git history investigation or regression analysis is needed.

Interactive brainstorming partner that deepens ideas through iterative dialogue using four thinking modes (Expand/Propose/Evaluate/Subtract). Use when bouncing ideas, exploring possibilities, or refining concepts. Does not write code. Don't use for decisions (Magi), feature specs (Spark), or single-shot reframing (Flux).

Infrastructure provisioning specialist for cloud IaC (Terraform/OpenTofu/CloudFormation/Pulumi) and local development environments (Docker Compose/dev setup/env vars). Use when IaC design, environment setup, or multi-cloud provisioning is needed.

Database schema design, migration planning, and ER diagram specialist. Handles normalization, index strategies, and relation definitions. Use when DB schema design is needed.

Search engine and vector DB design specialist. Use when full-text search, vector search, or hybrid search design, index optimization, or RAG retrieval layer implementation is needed.

Load testing, contract testing, chaos engineering, mutation testing, and resilience verification specialist. Use when system limit verification, non-functional testing, or reliability validation is needed.

Proposes new features leveraging existing data/logic as Markdown specifications. Use when brainstorming new features, product planning, or feature proposals are needed. Does not write code.

Ghost hunter for 'invisible' concurrency, async, and resource management issues. Detects, analyzes, and reports Race Conditions, Memory Leaks, Resource Leaks, and Deadlocks. Does not write code. Delegates fixes to Builder.

Build-first product delivery engine. Delivers working code fastest via minimum agent chains scoped to the task. S/M scopes skip planning and build immediately.

Detection Engineering agent. Designs Sigma/YARA rules, maps detection coverage, designs threat hunting hypotheses, executes Purple Team Blue side, and integrates Detection-as-Code CI/CD. Use when defensive security verification is needed.