When the user wants to build video-first cold outreach, create personalized video at scale, implement async selling, or use AI demo generation for prospecting. Also use when the user mentions 'video outreach,' 'personalized video,' 'video prospecting,' 'Tavus,' 'Sendspark,' 'HeyGen,' 'video email,' 'async selling,' 'video demo,' or 'made this for you.' This skill covers video-first outreach systems from personalization through conversion optimization. Do NOT use for technical implementation, code review, or software architecture.

Guidance for writing MkDocs documentation for BlazorWebFormsComponents. Use this when creating or updating component documentation, migration guides, or utility feature docs in the /docs folder.

Use this skill when asked to create a pull request (PR). It ensures all PRs follow the repository's established templates and standards.

This skill should be used when the user says "ensure config", "check arness config", "arn-code-ensure-config", "verify arness setup", or wants to verify that Arness Code configuration is present for the current project. This skill is primarily consumed as a reference by entry-point skills (arn-planning, arn-implementing, arn-shipping, arn-reviewing-pr, arn-assessing, arn-code-feature-spec, arn-code-bug-spec, arn-code-swift, arn-code-standard) which read the ensure-config reference as Step 0 before proceeding with their workflow.

Master defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD pipelines, or system utilities requiring fault tolerance and safety.

Use when building App Store or Google Play screenshot pages, generating exportable marketing screenshots for iOS and/or Android apps, or creating programmatic screenshot generators with Next.js. Triggers on app store, play store, screenshots, marketing assets, html-to-image, phone mockup, android screenshots, feature graphic.

Provide comprehensive techniques for testing REST, SOAP, and GraphQL APIs during bug bounty hunting and penetration testing engagements. Covers vulnerability discovery, authentication bypass, IDOR exploitation, and API-specific attack vectors.

Provide comprehensive techniques for attacking Microsoft Active Directory environments. Covers reconnaissance, credential harvesting, Kerberos attacks, lateral movement, privilege escalation, and domain dominance for red team operations and penetration testing.

Creative research ideation and exploration. Use for open-ended brainstorming sessions, exploring interdisciplinary connections, challenging assumptions, or identifying research gaps. Best for early-stage research planning when you do not have specific observations yet. For formulating testable hypotheses from data use hypothesis-generation.

Multi-objective optimization framework. NSGA-II, NSGA-III, MOEA/D, Pareto fronts, constraint handling, benchmarks (ZDT, DTLZ), for engineering design and optimization problems.

Performs systematic root cause analysis to identify the true source of bugs, errors, and unexpected behavior through structured investigation phases — not just treating symptoms. Use when a user reports a bug, crash, error, or broken behavior and needs to debug, troubleshoot, or investigate why something is not working; especially for complex or intermittent issues across multiple components. Applies the Five Whys method, hypothesis-driven testing, stack trace analysis, git blame/log evidence gathering, and causal chain documentation to isolate and confirm root causes before applying any fix.

Applies the scientific method to debugging by helping users form specific, testable hypotheses, design targeted experiments, and systematically confirm or reject theories to find root causes. Use when a user says their code isn't working, they're getting an error, something broke, they want to troubleshoot a bug, or they're trying to figure out what's causing an issue. Concrete actions include isolating failing components, forming and testing hypotheses, analyzing error messages, tracing execution paths, and interpreting test results to narrow down root causes.

Create and update Codex custom agents using standalone custom-agent TOML files.

Create a Gmail filter to automatically label, star, or categorize incoming messages.

Move a Google Calendar event to a new time and automatically notify all attendees.

Copy a Google Docs template, fill in content, and share with collaborators.

Append a deal status update to a Google Sheets sales tracking spreadsheet.

Plans PM career growth using frameworks from 40+ career episodes and Ami Vora's advancement strategies. Use when planning promotions, identifying skill gaps, navigating career transitions, or choosing between IC and management paths.