# cosmicstack-labs > Open-source publisher. Listings imported from github.com/cosmicstack-labs — credited to the original author with their license. - **Listings:** 50 - **Total installs:** 0 - **Profile:** https://agentstack.voostack.com/s/cosmicstack-labs - **Website:** https://github.com/cosmicstack-labs ## Published listings - [Ai Agent Design](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-ai-agent-design) — Skill · Free — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-ai-agent-design` Comprehensive guide to designing, building, and operating AI agents. Covers agent architecture, tool use patterns, memory systems, orchestration strategies, planning approaches, error recovery, and safety guardrails for production-grade agent systems. - [Resume Writing](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-resume-writing) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-resume-writing` ATS optimization, achievement frameworks (STAR, CAR), formatting, tailoring, and portfolio presentation - [Api Documentation](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-api-documentation) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-api-documentation` API Documentation: OpenAPI/Swagger specs, Postman collections, API reference patterns, and client SDK docs - [Storytelling Advisor](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-storytelling-advisor) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-storytelling-advisor` A narrative architecture coach that guides you through proven story frameworks — Hero's Journey, Pixar Storytelling Formula, Freytag's Pyramid, and more — to shape compelling narratives for pitches, brand stories, content, and presentations. - [Event Staffing Compliance](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-event-staffing-compliance) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-event-staffing-compliance` >- - [Python Patterns](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-python-patterns) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-python-patterns` Python best practices including type hints, async patterns, testing, and project structure - [Prompt Version Management](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-prompt-version-management) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-prompt-version-management` Manage prompt versions, run A/B tests across agent prompts, track performance regressions, and safely roll out prompt changes in production. Covers prompt diffing, semantic versioning, canary releases, and automated evaluation. - [Career Planning](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-career-planning) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-career-planning` Skills assessment, career frameworks, OKRs, mentorship, board of directors, and career pivots - [Gbrain Lite](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-gbrain-lite) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-gbrain-lite` Lightweight personal knowledge base — markdown + YAML frontmatter structured notes with full-text search and cross-referencing for AI agents - [Event Staffing Ordering](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-event-staffing-ordering) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-event-staffing-ordering` >- - [Interview Prep](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-interview-prep) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-interview-prep` Behavioral frameworks, technical interview patterns, system design, coding, and negotiation prep - [Decision Matrix](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-decision-matrix) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-decision-matrix` A structured reasoning assistant that helps you make clear, confident decisions using proven frameworks — Pros/Cons, Decision Matrix (Pugh Matrix), Weighted Scoring, Pre-mortem, and Opportunity Cost Analysis. - [Serverless Patterns](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-serverless-patterns) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-serverless-patterns` Lambda, cold starts, event-driven design, API Gateway, and serverless frameworks - [Negotiation](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-negotiation) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-negotiation` >- - [Salary Negotiation](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-salary-negotiation) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-salary-negotiation` Market research, compensation benchmarking, BATNA, total comp analysis, and offer evaluation - [Authentication Authorization](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-authentication-authorization) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-authentication-authorization` JWT, OAuth2, SAML, session management, RBAC, ABAC, and MFA implementation - [Workflow Automation](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-workflow-automation) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-workflow-automation` Master workflow design, n8n patterns, automation triggers, error handling, and monitoring for reliable business process automation - [Content Repurposer](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-content-repurposer) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-content-repurposer` A content multiplication engine that transforms a single piece of content into multiple formats across channels — blog posts into Twitter threads, LinkedIn posts, email newsletters, Instagram carousels, and more. Maximizes ROI on every idea you create. - [Shell Scripting](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-shell-scripting) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-shell-scripting` Master shell scripting best practices, error handling, portability, debugging, and performance optimization for reliable automation scripts - [Clean Code](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-clean-code) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-clean-code` Principles and practices for writing readable, maintainable, and testable code - [X Twitter Automation](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-x-twitter-automation) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-x-twitter-automation` Design safe X/Twitter automation workflows for tweet search, reply reads, monitoring, posting, and agent-operated social media actions - [Agent Task Delegation](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-agent-task-delegation) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-agent-task-delegation` Design and operate task delegation systems for multi-agent fleets. Covers workload distribution, load balancing, queue management, priority scheduling, and dynamic agent scaling for production agent systems. - [Data Pipeline](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-data-pipeline) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-data-pipeline` Comprehensive guide to data pipeline design, ETL/ELT patterns, data quality, monitoring, orchestration, and cost optimization for production-grade data engineering. - [Architecture Decision Records](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-architecture-decision-records) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-architecture-decision-records` ADR methodology, templates, decision capture workflows, and architectural governance patterns - [Accessibility](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-accessibility) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-accessibility` Achieve and maintain WCAG compliance through inclusive design practices, proper ARIA usage, and comprehensive testing methodologies. - [Memory Management](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-memory-management) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-memory-management` Design and operate memory systems for long-running AI agents. Covers context window optimization, summarization strategies, vector-based retrieval, episodic memory, memory consolidation, and garbage collection for production agent systems. - [Agent Health Monitoring](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-agent-health-monitoring) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-agent-health-monitoring` Monitor AI agent health, detect anomalies, set up alerting, and maintain observability dashboards for production multi-agent systems. Covers liveness checks, performance metrics, drift detection, and incident response. - [Api Design](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-api-design) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-api-design` REST and GraphQL API design principles, versioning, error handling, and documentation patterns - [Startup Strategy](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-startup-strategy) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-startup-strategy` >- - [Prompt Engineering](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-prompt-engineering) — Skill · Free — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-prompt-engineering` Master the art and science of crafting effective prompts for large language models. Covers foundational patterns, advanced techniques like chain-of-thought and role prompting, structured output formats, and practical strategies for iterative refinement. - [Token Budget Tracking](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-token-budget-tracking) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-token-budget-tracking` Track, optimize, and control token consumption across multi-agent systems. Covers budget allocation, real-time monitoring, cost attribution, per-agent limits, and proactive cost optimization for production LLM deployments. - [Microservices](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-microservices) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-microservices` Service boundaries, communication patterns, event sourcing, CQRS, and distributed tracing - [Time Blocking Scheduler](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-time-blocking-scheduler) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-time-blocking-scheduler` A structured time management coach that designs deep work schedules, energy-aligned routines, and priority-focused blocks for freelancers, solopreneurs, and creative professionals who need to protect their focus from the chaos of unstructured days. - [Idea Validator](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-idea-validator) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-idea-validator` A structured idea testing framework that runs every concept through a reality checklist before you invest time, money, or energy. Combines lean validation, customer discovery, and risk analysis into a single process for solopreneurs, creators, and innovators. - [Caching Strategies](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-caching-strategies) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-caching-strategies` CDN, Redis, in-memory cache, cache invalidation, and distributed caching patterns - [Meeting Note Summarizer](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-meeting-note-summarizer) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-meeting-note-summarizer` Transforms messy meeting transcripts, notes, or voice memos into structured summaries with clear action items, decisions, and key takeaways. Designed for freelancers, remote teams, and solopreneurs who need to extract signal from hours of meetings. - [Linkedin Optimization](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-linkedin-optimization) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-linkedin-optimization` Profile optimization, content strategy, networking, thought leadership, and personal branding - [Code Review](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-code-review) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-code-review` Systematic code review methodology, PR checklist, feedback techniques, and review automation patterns - [Ui Design System](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-ui-design-system) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-ui-design-system` Master the creation, maintenance, and governance of design systems — from design tokens and component architecture to documentation, versioning, and accessibility. - [Error Recovery Retry](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-error-recovery-retry) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-error-recovery-retry` Design robust error recovery, retry logic, and fallback strategies for production AI agents. Covers transient failure handling, circuit breakers, exponential backoff, state recovery, graceful degradation, and dead-letter queues for agent systems. - [Daily Briefing](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-daily-briefing) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-daily-briefing` Automated daily tech briefing — multi-source collection → knowledge-base deduplication → AI summarization → TTS speech synthesis, generating MP3 audio briefings - [Agent Handoff Protocols](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-agent-handoff-protocols) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-agent-handoff-protocols` Design and implement agent-to-agent handoff protocols for multi-agent systems. Covers context passing, escalation patterns, handshake mechanisms, conversation continuity, and routing between specialized agents in production workflows. - [Message Queues](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-message-queues) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-message-queues` RabbitMQ, Kafka, SQS, pub/sub, competing consumers, dead letter queues, and event streaming - [Daily Standup Journal](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-daily-standup-journal) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-daily-standup-journal` A structured reflection engine that generates daily standup prompts, journaling questions, and weekly retrospectives for solopreneurs, freelancers, and remote teams. Helps build momentum, surface blockers, and track progress without the overhead of a manager. - [Nodejs Patterns](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-nodejs-patterns) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-nodejs-patterns` Async control flow, error handling, module design, streams, and production hardening - [Agent Audit Logging](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-agent-audit-logging) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-agent-audit-logging` Implement comprehensive audit logging and reporting for multi-agent systems. Covers event capture, structured logging, traceability, compliance reporting, forensic analysis, and real-time monitoring dashboards for agent actions and decisions. - [Twitter Account Manager](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-twitter-account-manager) — Skill · Free — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-twitter-account-manager` EDUCATIONAL / RESEARCH ONLY — Single-account always-on Twitter/X manager driven by cookies + headless Playwright. Runs a 10-minute scheduler that drafts posts, engages with timeline/search results, and queues anything risky for Telegram human approval. Hard daily ceilings, structural prompt-injection defenses, and DM auto-reply permanently disabled. Accounts WILL be terminated — we do not encoura… - [Database Design](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-database-design) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-database-design` Schema design, normalization, indexing, migrations, and query optimization for SQL and NoSQL - [Personal Branding Statement](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-personal-branding-statement) — Skill · Free · security-reviewed — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-personal-branding-statement` A personal brand coach that helps you articulate who you are, what you do, and why it matters. Generates one-liners, bio statements, taglines, positioning frameworks, and messaging matrices for freelancers, creators, and solopreneurs building a professional identity. - [Screenshot](https://agentstack.voostack.com/l/skill-cosmicstack-labs-mercury-agent-skills-screenshot) — Skill · Free — `agentstack add skill-cosmicstack-labs-mercury-agent-skills-screenshot` Capture high-fidelity screenshots of any website using Playwright — supports custom viewports, dark/light mode, mobile/tablet/desktop presets, split-screen, element-based capture by CSS selector, and text-based area capture. Integrates with Telegram or any output channel for delivery. --- Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add `.