Agent Skills Anti-Patterns: 10 Problems and Better Fixes
Ten real Agent Skills failure modes—from invalid metadata and false portability claims to unsafe scripts and invented evidence—with standards-based fixes.
AgentSkills, AntiPatterns, AIAgents
Rayan Saade
Co-founder & CTO
Rayan Saade is the Co-founder and CTO of Start Me Up AI, a software engineer and AI developer with a background in building robust backend systems, data pipelines, and smart integrations for fast-moving teams. He leads the technical architecture and ensures all solutions are battle-tested, cleanly built, and ready to scale.
Background
Before joining Start Me Up AI, Rayan spent years designing scalable architectures and diving deep into everything from master data management systems to blockchain solutions. His experience spans building high-performance systems that handle complex data flows and integrations.
In 2024, Rayan joined Nicolas to bring the vision of SMUAI to life: a platform that doesn't just offer AI tools but reshapes how startups approach product development. From automating dev workflows to embedding AI in the core of every build, he turns ideas intoproduction-ready, scalable solutions.
Areas of Expertise
- Backend Development: Python, FastAPI, Node.js, robust API design
- Data Pipelines: ETL processes, data integration, real-time processing
- Scalable Architectures: Microservices, distributed systems, cloud-native design
- Blockchain Solutions: Smart contracts, decentralized applications
- AI Development: Generative AI, LLMs, RAG systems
- Database Systems: MongoDB, PostgreSQL, data modeling
Philosophy
Rayan's goal is to help startups move faster without cutting corners, combiningpragmatic engineering with the power of generative AI. At Start Me Up AI, he makes sure the tools are not just smart—they're battle-tested, cleanly built, and ready to scale from day one.
Articles by Rayan
Byblos AI Is in Private Beta: Request Access and Shape It
Byblos AI, the AI co-founder platform from StartMeUp AI, is now in private beta. Request access at byblosai.app, put Sy PM, Brand Manager, and Campaign Manager to work on a real idea, and tell us what to build next. We are also live on Product Hunt.
ByblosAI, PrivateBeta, AICoFounder
Sy PM: An AI Product Manager for Startup Product Delivery
Sy PM, the AI product manager inside Byblos AI, is now in private beta. It turns founder context into connected, reviewable product artifacts while tracking evidence, confidence, dependencies, approvals, and a build-ready Co-CTO handoff.
SyPM, ByblosAI, AIProductManager
Audit Agent Skills With a Practical Readiness Scorecard
Separate standards compliance, vendor compatibility, workflow quality, and runtime evidence with a ten-point Agent Skills audit designed for real engineering repositories.
AgentSkills, AIAgents, CodeReview
How AI Agents Reliably Discover and Load Skills at Runtime
Skill selection begins with metadata, not the hidden body. Learn the documented progressive-disclosure model and the observable evaluation method we use to improve routing.
AgentSkills, AIAgents, SkillSelection
Portable Agent Skills Across Copilot, Codex, and Claude
The SKILL.md content format is portable, but discovery paths and runtime behavior differ. Use this vendor matrix and adapter strategy to avoid false one-setup claims.
AgentSkills, GitHubCopilot, OpenAICodex
Custom Instructions for AI Coding Agents Without Duplication
Learn how Copilot, Codex, and Claude load repository instructions, and how we keep one source of truth while preserving tool-specific discovery paths.
CustomInstructions, AIAgents, AgenticCoding
Agent Personas vs. Skills: Role, Rules, and Workflow
Personas and skills are not interchangeable. Learn the separation we use between role, persistent repository rules, and task procedures—and where it is convention rather than standard.
AIAgents, AgentSkills, AgentPersonas
How to Write Reliable Agent Skills for AI Coding Workflows
Learn what the Agent Skills standard actually requires, what agents see during discovery, and the authoring practices we use to make workflows clear, safe, and testable.
AgentSkills, AIAgents, AgenticCoding
How to Structure .github/ for AI Coding Agents
A clean .github/ directory is the difference between agents that follow your standards and agents that guess. Here is the layout for skills, agents, and instructions — and the rules that keep each in its lane.
AgentSkills, RepositoryStructure, AIAgents
Get in Touch
Interested in discussing technical architecture or how AI can accelerate your startup's development?
Contact Rayan