Agentic AIAI SystemsConsulting9 min read
Why AI Agent Projects Fail in Production
Gartner predicts over 40% of agentic AI projects will be cancelled by end of 2027. Here is why most fail and what the surviving 60% do differently.
Read post →Blog
Writing on agentic AI, blockchain, and AI systems architecture.
Technical writing by Mudassir Khan — agentic AI consultant and AI systems architect. New posts published directly on this site. Earlier writing on Dev.to.
Agentic AI
Multi-agent design patterns, LLM selection, agent evaluation, and security for production autonomous systems.
Agentic AIAI Architecture10 min read
Multi-Agent Design Patterns: The Four That Work in Production
Sequential, orchestrator-worker, hierarchical, and dynamic handoff — the four multi-agent patterns that survive production, with LangGraph implementation guidance and the trade-offs auditors push back on.
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LLMsAgentic AI10 min read
Anthropic vs OpenAI (and Google): Best LLM for Agents
Anthropic vs OpenAI vs Google — which LLM wins for production agentic AI? This comparison covers tool-call reliability, context window, cost, enterprise safety, and government AI use cases.
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AI EngineeringAgentic AI9 min read
How to Evaluate LLM Agents in Production: Beyond Unit Tests
Agent failures happen at the span level, not the final output. RAGAS metrics, span-level evaluation, LangSmith setup, and the target scores that distinguish production-ready agents from demos.
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Agentic AIAI Engineering10 min read
Prompt Injection and AI Agent Security: A Production Defense Guide
Prompt injection is OWASP's number one LLM risk. The Lethal Trifecta, indirect injection vectors, and the seven-layer defense stack production agents need before shipping.
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Agentic AIAI Architecture9 min read
Blockchain and Agentic AI: How Autonomous Agents Go On-Chain
AI agents with wallets, smart contract execution, and on-chain governance are live in production. The architecture, ERC-4337 account abstraction, multi-sig safety patterns, and the use cases that actually ship.
Read post →RAG & AI Engineering
Production RAG pipelines, vector database selection, fine-tuning tradeoffs, and LLM governance.
AI Engineering15 min read
JavaScript Programming: Complete Beginner Guide
JavaScript is the language of the web and modern AI tooling. This guide covers variables, functions, loops, objects, async, and your first program.
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RAGAI Engineering11 min read
Production RAG: Why Retrieval Fails and How to Fix It
Most RAG failures happen at retrieval, not at the LLM. Chunking strategies, hybrid search, reranking, and RAGAS metrics for production RAG pipelines that survive real traffic.
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RAGLLMs9 min read
RAG vs Fine-Tuning: The Decision Guide for Production
RAG vs fine-tuning — which approach fits your production LLM? Covers RAG vs fine-tuning vs prompt engineering, LLM fine-tuning vs RAG, when to use each, and the hybrid pattern that has become standard.
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RAGAI Engineering9 min read
pgvector vs Pinecone vs Weaviate: How to Choose
Start on pgvector, migrate when you must. An AI architect's guide to choosing a vector database — when each option wins, what the performance numbers actually show, and the migration cost most teams underestimate.
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AI SystemsAI Engineering9 min read
AI Governance Framework for Production LLMs: The Checklist
A practical AI governance framework for production LLM systems — the five layers every team needs, the EU AI Act obligations coming into force, and ISO 42001 implementation guidance.
Read post →Hiring & Consulting
When to hire, which AI roles you actually need, and how to structure consulting engagements.
Agentic AIConsultingHiring9 min read
AI Consulting Services: Hiring an Agentic AI Consultant
Everything you need to know about AI consulting services — what they include, when to hire an agentic AI consultant vs. a general agency, how engagements work, and current pricing benchmarks.
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AI ArchitectureHiringAI Systems11 min read
What an AI Systems Architect Actually Does (and When You Need One vs. an ML Engineer)
A clear breakdown of what an AI systems architect does, how the role differs from ML engineers and data scientists, when your team needs one, and what the role actually delivers.
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ConsultingHiring8 min read
Hire AI Engineers or Use a Consultant? The Decision Guide
Hire AI engineers or engage a consultant? This guide covers generative AI engineers, AWS AI specialists, cost vs timeline tradeoffs, and the hybrid model most seed-stage startups actually use.
Read post →Blockchain & Web3
Ethereum, Solana, smart contracts, wallets, on-chain transactions, and ERC token standards.
BlockchainSoliditySmart Contracts13 min read
Solidity for Loop: Syntax, Patterns, and Gas Tips
Master the Solidity for loop. Counter syntax, break and continue, four iteration patterns, the unchecked-increment gas optimization, and a complete ScoreBoard contract with full code.
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BlockchainSoliditySmart Contracts13 min read
while Loop in Solidity: Binary Search and Sentinel Patterns
Master the Solidity while loop. Binary search with overflow-safe midpoint, unbounded loop dangers, four common mistakes, and a complete SortedBidList contract.
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BlockchainSoliditySmart Contracts11 min read
do-while Loop in Solidity: Slot Scanning and At-Least-Once Patterns
Master the Solidity do-while loop. The at-least-once guarantee, slot scanning patterns, wrap-around search, four common mistakes, and a complete SlotReserver contract.
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BlockchainSoliditySmart Contracts12 min read
Loop Gas Optimization in Solidity: Five Techniques
Cut loop gas costs in Solidity with five proven techniques: cache array length, unchecked ++i, prefix increment, memory accumulators, and single SSTORE after loop. Complete airdrop contract.
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BlockchainSoliditySmart Contracts14 min read
Loops with Mappings in Solidity: Enumerable Pattern
Iterate over Solidity mappings safely. Enumerable mapping pattern, pull over push for unbounded sets, paginated reads, and a complete EnumerableStakingRegistry contract.
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BlockchainSoliditySmart Contracts13 min read
Solidity Mapping with address: Patterns and Full Contract
Learn how to use address as a key and value in Solidity mappings. Balance tracker, ownership registry, approval grant, and freeze flag with a complete smart contract.
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BlockchainSoliditySmart Contracts13 min read
Solidity Mapping with uint256: Voting and Leaderboard Patterns
Learn how to use uint256 as key and value in Solidity mappings. Voting tallies, leaderboards, staking counters, and a complete governance contract with full code.
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BlockchainSoliditySmart Contracts12 min read
Solidity Mapping with bool: Whitelist and Access Control
Learn how to use bool as a mapping value in Solidity. Whitelist gates, role access control, and presale guards with complete smart contract examples and gas notes.
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BlockchainSoliditySmart Contracts14 min read
Nested Mapping in Solidity: ERC20 Allowance and Two-Key Patterns
Learn nested mappings in Solidity. How ERC20 allowance works, the two-step keccak256 storage derivation, and a complete AllowanceToken contract with approve and transferFrom.
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BlockchainSoliditySmart Contracts13 min read
Solidity Mapping with bytes32: Document Registry and Role Identifiers
Learn how to use bytes32 as a mapping key in Solidity. Document registries, keccak256 role identifiers, and hash-based storage patterns with complete smart contract code.
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BlockchainSmart ContractsSolidity16 min read
uint Array in Solidity: A Beginner Smart Contract Guide
Learn the uint array in Solidity end to end. push, pop, delete, swap and pop, memory arrays, fixed length, and a Remix contract with every method.
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BlockchainSmart ContractsSolidity16 min read
int Array in Solidity: A Beginner Smart Contract Guide
Learn the int array in Solidity end to end. push, pop, delete, swap and pop, signed values, memory arrays, fixed length, and a Remix contract with every method.
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BlockchainSmart ContractsSolidity16 min read
string Array in Solidity: A Beginner Guide With Code
Learn the string array in Solidity end to end. push, pop, delete, swap and pop, the memory keyword, fixed length, and a Remix contract with every method.
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BlockchainSmart ContractsSolidity16 min read
address Array in Solidity: Beginner Guide With Code
Learn the address array in Solidity end to end. push, pop, delete, swap and pop, the zero address, memory arrays, and a Remix Whitelist with every method.
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BlockchainSmart ContractsSolidity17 min read
Struct Array in Solidity: A Beginner Smart Contract Guide
Learn the struct array in Solidity end to end. push, pop, delete, swap and pop, field updates, memory and storage, and a Remix StudentRegistry contract.
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BlockchainAI Engineering13 min read
Create an ERC20 Token: Remix Step by Step
Build an ERC20 token from scratch and deploy it on Remix IDE. Full interface, contract code, deploy walkthrough, and the approve and transferFrom pattern.
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BlockchainAI Engineering14 min read
Create an ERC721 NFT in Remix: Step-by-Step Tutorial
Build a complete ERC721 NFT contract on Remix IDE, end-to-end. Full IERC721 interface, mint and transfer code, IPFS metadata, safeTransferFrom receiver pattern, and how to verify on Etherscan.
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BlockchainAI Engineering14 min read
Create an ERC1155 Multi Token: Remix Tutorial
Build an ERC1155 multi token contract on Remix IDE. Full interface, batch operations, mint and transfer code, and a deployable game ready example.
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BlockchainSolidity16 min read
ERC-1155 With OpenZeppelin: A Beginner Tutorial With Code
Learn ERC-1155 with OpenZeppelin from zero. Six Solidity examples: single mint, batch mint, safe transfers, metadata URIs, and a game inventory.
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BlockchainAI Architecture13 min read
Solana vs Ethereum: Blockchain Fundamentals Compared
Solana vs Ethereum — which blockchain should you build on? Distributed ledgers, Proof of History vs Gasper consensus, speed vs decentralization, and a VC perspective on chain selection.
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BlockchainAI Architecture13 min read
Blockchain Networks: RPC, Chain IDs, and MetaMask Setup
Public RPC endpoints are rate limited. How RPC nodes work, mainnet vs testnet, Chain IDs, and how to add a custom network to MetaMask with Alchemy.
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BlockchainAI Engineering14 min read
Solidity Smart Contracts: Complete Beginner Guide
Solidity is the language for Ethereum smart contracts. This guide covers variables, functions, loops, control flow, and your first deployable contract.
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BlockchainSolidity14 min read
Solidity Mapping with Struct: Patterns and Examples
Mapping with struct is Solidity's workhorse for per-user state. Learn the pattern, see a full voting registry, master storage packing, and avoid the four common pitfalls.
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BlockchainSolidity13 min read
Solidity Arrays with Loops: Smart Contract Examples
Arrays plus loops in Solidity: for vs while, the vote tally pattern, the unbounded loop bug, pagination, and pull over push. Six patterns and a complete worked example.
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BlockchainSolidity12 min read
Solidity Arrays From Scratch: A Practical Guide
Learn arrays in Solidity from scratch. Fixed and dynamic arrays, push, pop, length, delete, storage vs memory vs calldata, plus a full worked contract.
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BlockchainSolidity10 min read
Build a Solidity Calculator Contract: Beginner Tutorial
Build a Solidity calculator smart contract from scratch. Add, subtract, multiply, divide with pure functions, stored state, events, and require, deployed in Remix.
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BlockchainAI Engineering13 min read
Solidity vs. Rust: Smart Contract Languages
Solidity powers Ethereum DeFi. Rust powers Solana's Sealevel parallel runtime. Here is how the two languages differ on safety, performance, learning curve, and ecosystem depth.
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Blockchain9 min read
How Ethereum Wallets Work: Keys, Addresses, Signing
How an Ethereum wallet actually works — private and public keys, address derivation, seed phrases, and how a signed transaction proves ownership without revealing your key.
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Blockchain10 min read
How Ethereum Transactions Work: Lifecycle and Gas
An Ethereum transaction is a signed message. This guide walks through every field, the wallet to mempool to block lifecycle, gas pricing, and why some transactions fail.
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Blockchain11 min read
ERC Token Standards Explained: ERC20, ERC721, ERC1155, ERC1400, ERC4337, ERC6551
All major ERC token standards explained — ERC20 fungible tokens, ERC721 NFTs, ERC1155 multi-token, ERC1400 security tokens, ERC4626 vaults, ERC4337 account abstraction, and ERC6551 token bound accounts.
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Blockchain13 min read
Crypto Wallets: Setup to Your First Transaction
What a crypto wallet actually stores, the difference between custodial and non-custodial, and a step by step guide to installing MetaMask and Phantom and sending your first testnet transaction.
Read post →Earlier writing on Dev.to
Essays and early-stage thinking, published on Dev.to.
RAGAgentic AI8 min read
CLaRa: Fixing RAG's Broken Retrieval–Generation Pipeline With Shared-Space Learning
How closed-loop retrieval with shared-space learning improves grounding quality in production RAG systems — and why most RAG pipelines are broken at the retrieval–generation boundary.
Read on Dev.to ↗
AI EngineeringLLMs6 min read
The Rise of Prompt-Driven Development: Why the Future of Software May Be Written in Prompts
A practical perspective on prompt-first workflows, governance, and how software engineering teams are evolving their practices.
Read on Dev.to ↗
AIProduct7 min read
I Had a Fight With My Toaster — And It Taught Me Everything About the Future of AI
A narrative take on everyday AI behaviour and what it signals about where human-AI interaction is heading.
Read on Dev.to ↗More posts coming soon
A 30-post technical series on agentic AI architecture, LangGraph patterns, blockchain compliance engineering, and production AI systems is in progress. Follow on Dev.to or LinkedIn to be notified.