Claude Skills by onfire7777

Frame an epic as a testable hypothesis with target user, expected outcome, and validation method. Use when defining a major initiative before roadmap, discovery, or delivery planning.

Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build resilient applications. Use when implementing error handling, designing APIs, or improving application reliability.

Use when making quick order-of-magnitude estimates under uncertainty (market sizing, resource planning, feasibility checks), decomposing complex quantities into estimable parts, bounding unknowns with upper/lower limits, sanity-checking strategic assumptions, or when user mentions Fermi estimation, back-of-envelope calculation, order of magnitude, ballpark estimate, triangulation, or needs to assess feasibility before detailed analysis.

Use when decisions could affect groups differently and need to anticipate harms/benefits, assess fairness and safety concerns, identify vulnerable populations, propose risk mitigations, define monitoring metrics, or when user mentions ethical review, impact assessment, differential harm, safety analysis, vulnerable groups, bias audit, or responsible AI/tech.

Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles

Use when need explicit quality criteria and scoring scales to evaluate work consistently, compare alternatives objectively, set acceptance thresholds, reduce subjective bias, or when user mentions rubric, scoring criteria, quality standards, evaluation framework, inter-rater reliability, or grade/assess work.

Design and implement event stores for event-sourced systems. Use when building event sourcing infrastructure, choosing event store technologies, or implementing event persistence patterns.

Automate Eventbrite event management, attendee tracking, organization discovery, and category browsing through natural language commands

Semantic search, similar content discovery, and structured research using Exa API

Excel Automation: create workbooks, manage worksheets, read/write cell data, and format spreadsheets via Microsoft Excel and Google Sheets integration

Professional Excel spreadsheet creation with a focus on aesthetics and data analysis. Use when creating spreadsheets for organizing, analyzing, and presenting structured data in a clear and professional format.

Use when you have a written implementation plan to execute in a separate session with review checkpoints

Plan a VP or CPO 30-60-90 day diagnostic onboarding path. Use when entering a new executive product role and avoiding premature change.

Use when making decisions under uncertainty with quantifiable outcomes, comparing risky options (investments, product bets, strategic choices), prioritizing projects by expected return, assessing whether to take a gamble, or when user mentions expected value, EV calculation, risk-adjusted return, probability-weighted outcomes, decision tree, or needs to choose between uncertain alternatives.

A/B test design, hypothesis document creation, sample size calculation, feature flag implementation, statistical significance determination, and experiment report generation. Used when hypothesis validation is required.

Automate Facebook Page management including post creation, scheduling, video uploads, Messenger conversations, and audience engagement via Composio

Use when running meetings, workshops, brainstorms, design sprints, retrospectives, or team decision-making sessions. Apply when need structured group discussion, managing diverse stakeholder input, ensuring equal participation, handling conflict or groupthink, or when user mentions facilitation, workshop design, meeting patterns, session planning, or running effective collaborative sessions.

Plan and build production-ready FastAPI endpoints with async SQLAlchemy, Pydantic v2 models, dependency injection for auth, and pytest tests. Uses interview-driven planning to clarify data models, authentication method, pagination strategy, and caching before writing any code.

Create production-ready FastAPI projects with async patterns, dependency injection, and comprehensive error handling. Use when building new FastAPI applications or setting up backend API projects.

Generate custom favicons from logos, text, or brand colours. Produces all required formats: favicon.svg, favicon.ico, apple-touch-icon.png, icon-192/512.png, and web manifest. Use when initialising websites, replacing CMS default favicons, converting logos to favicons, creating branded icons from initials, or troubleshooting favicon not displaying, iOS black square, or missing manifest.

Conducts structured requirements workshops to produce feature specifications, user stories, EARS-format functional requirements, acceptance criteria, and implementation checklists. Use when defining new features, gathering requirements, or writing specifications. Invoke for feature definition, requirements gathering, user stories, EARS format specs, PRDs, acceptance criteria, or requirement matrices.

Evaluate feature investments using revenue impact, cost structure, ROI, and strategy. Use when deciding whether a feature deserves investment.

Translate Figma nodes into production-ready code with 1:1 visual fidelity using the Figma MCP workflow (design context, screenshots, assets, and project-convention translation). Trigger when the user provides Figma URLs or node IDs, or asks to implement designs or components that must match Figma specs. Requires a working Figma MCP server connection.

Comprehensive file organization suite. Use for cleaning up messy folders, arranging the desktop, finding duplicates, renaming files intelligently, and categorizing files by type or date. Includes safety features like dry-run mode and undo capabilities.

Automate Fillout tasks via Rube MCP (Composio): forms, submissions, workflows, and form builder. Always search tools first for current schemas.

Evaluate pricing changes using ARPU, conversion, churn risk, NRR, and payback. Use when deciding whether a pricing move should ship.

Look up SaaS finance metrics, formulas, and benchmarks fast. Use when you need a quick metric definition, formula, or benchmark during analysis.

Create quarterly or monthly finance report pages with KPIs, revenue breakdowns, charts, commentary, and executive summaries.

Find bugs, security vulnerabilities, and code quality issues in local branch changes. Use when asked to review changes, find bugs, security review, or audit code on the current branch.

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

Scans Android APKs for Firebase security misconfigurations including open databases, storage buckets, authentication issues, and exposed cloud functions. Use when analyzing APK files for Firebase vulnerabilities, performing mobile app security audits, or testing Firebase endpoint security. For authorized security research only.

Automate web crawling and data extraction with Firecrawl -- scrape pages, crawl sites, extract structured data, batch scrape URLs, and map website structures through the Composio Firecrawl integration.

Deep web scraping, screenshots, PDF parsing, and website crawling using Firecrawl API

Use when working with firecrawl/firecrawl or the installed Firecrawl CLI: installing, updating, logging in, checking status, searching the web through Firecrawl, scraping pages, interacting with pages, crawling sites, mapping URLs, parsing files, running Firecrawl agent jobs, using Firecrawl SDK/API examples, or configuring optional firecrawl-mcp for an MCP client. Prefer this for Firecrawl hosted API and CLI workflows. Do not use for generic web search when the host AI has native search, or ...

Socratic coach for breaking down problems to fundamental truths. Use when users want to think through a problem deeply, challenge assumptions, or find innovative solutions. Triggers on requests like "help me think through this", "let's break this down", "what are my blind spots", "I'm stuck on a problem", "challenge my assumptions", or explicit requests for first-principles thinking.

Use before the five-agent-dev-team Captain Integrator merges, rebases, labels ready-to-merge, pushes main, or advances main build state.

Use when five-agent-dev-team GitHub Actions, Gitleaks, Docker, audit, lint, test, or formatting checks fail.

Use when a five-agent-dev-team automation opens, updates, labels, or hands off a pull request.

Use before any five-agent-dev-team automation mutates files, opens PRs, updates branches, or performs Captain integration.

Use for five-agent-dev-team secret handling, workflow permissions, Docker safety, dependency audit, local binding, and supply-chain review.

Use when updating five-agent-dev-team swarm state, ledger entries, blockers, or next-stage handoffs.

Implements CSS/JS animations such as hover effects, loading states, and modal transitions to add motion and smooth interactions to the UI.

A thinking refraction agent that questions assumptions, combines different fields, and shifts perspectives to reframe problems. Used when breakthroughs or paradigm shifts are needed in stuck issues. Does not write code.

Use when managing time and attention, combating procrastination or context-switching, prioritizing high-impact work, planning daily/weekly schedules, improving focus and productivity, or when user mentions timeboxing, Pomodoro, deep work, 80/20 rule, Pareto principle, focus blocks, task batching, energy management, or needs structured approach to getting important work done.

Use to stress-test predictions by assuming they failed and working backward to identify why. Invoke when confidence is high (>80% or <20%), need to identify tail risks and unknown unknowns, or want to widen overconfident intervals. Use when user mentions premortem, backcasting, what could go wrong, stress test, or black swans.

Quickly build prototypes for both frontend (UI components/pages) and backend (API mocks/simple servers). Used to validate new features and shape ideas. Prioritize working over perfect.

Systematically verifies suspected security bugs to eliminate false positives. Produces TRUE POSITIVE or FALSE POSITIVE verdicts with documented evidence for each bug.

A bridge agent that leverages the Figma MCP Server to extract and structure design context, delivering it to implementation agents. Used when bridging Figma designs to code, managing Code Connect, or extracting design system rules.

FreshBooks Automation: manage businesses, projects, time tracking, and billing in FreshBooks cloud accounting

Create polished, intentional frontend interfaces. Use this skill when building any UI — dashboards, admin panels, landing pages, marketing sites, or web applications. Routes to specialized guidance based on context.