A curated registry of reusable Mercury Agent, Open Claw or Hermes Agent skills designed for real developer workflows, persistent memory, and token-efficient execution.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Comprehensive secure coding practices covering input validation, authentication, authorization, cryptography, secrets management, and error handling. Provides actionable code examples and checklists for building security into every stage of development.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Comprehensive security audit methodology covering OWASP Top 10, dependency scanning, threat modeling, and vulnerability assessment. Provides actionable guidance for conducting systematic security audits from scope definition to final reporting.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Headless Amazon assistant — cookie-based session reuse to search, compare, sort, manage cart, track orders, surface deals, and analyze spending across amazon.in / amazon.com / amazon.co.uk / amazon.de / amazon.co.jp / etc. Checkout is prepare-and-handoff: the skill builds the cart and opens the final checkout URL; the…
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Generate a daily business snapshot — sales, labor cost, COGS, covers, and P&L flash report — so the owner knows exactly where the business stands every morning. Flags anomalies before they become problems.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Intelligently manage stock levels, generate supplier orders, and prevent shortages or overstock. Tracks usage patterns, lead times, and par levels to keep the shop or restaurant running without waste.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Optimize menu pricing, placement, and item mix to maximize profitability. Uses menu engineering frameworks to analyze item performance by popularity and margin, then recommends pricing tweaks, repositioning, and removals.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Track and compare supplier prices across multiple vendors to reduce COGS. Monitors price changes, identifies savings opportunities, calculates total cost of ownership (including delivery fees and minimums), and generates renegotiation briefs.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Monitor customer reviews across platforms and generate thoughtful, brand-aligned responses. Flags urgent negative reviews for priority attention, drafts responses that turn detractors into promoters, and tracks review sentiment trends over time.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Generate engaging social media content for a shop or restaurant — daily specials, behind-the-scenes, customer features, and promotional posts. Adapts tone to the platform (Instagram, TikTok, Facebook, X), schedules posts, and tracks engagement.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Build optimized staff schedules that match coverage to demand while respecting labor budgets, employee availability, and local labor laws. Handles shift swaps, time-off requests, and identifies over/under-staffing before it happens.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Optimize table turns, manage reservations, and reduce wait times to maximize revenue per seat. Handles booking intake, table assignment strategy, waitlist management, and provides actionable insights for seating efficiency.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex needs its repo
Order food from Zomato via browser automation. Uses a two-phase approach: Phase 1 (setup) captures login cookies after manual login. Phase 2 (auto-order) reuses cookies to create orders and share payment links. No OTP needed after initial setup.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
WCAG 2.1/2.2 audit, axe, Lighthouse, manual testing, screen reader testing, and remediation.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
REST and GraphQL testing, Postman/Insomnia patterns, contract testing, schema validation, and monitoring.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Playwright and Cypress patterns, selectors, assertions, API mocking, visual testing, and CI/CD.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Load, stress, spike testing with k6/Locust, bottleneck analysis, and performance test automation.
cosmicstack-labs/mercury-agent-skills
Skill Claude CodeCodex
Test pyramid, risk-based testing, test planning, coverage metrics, and SDLC integration.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: