--- author: "Umesh Malik" canonical: "https://umesh-malik.com/blog/tag/ai-coding-agents" description: "Explore articles tagged with AI Coding Agents by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn AI Coding Agents best practices, practical tips, and in-depth guides." title: "Umesh Malik's Blog - AI Coding Agents Articles | AI Coding Agents Tutorials" tokens: 2478 generator: "scripts/generate-page-markdown.mjs" --- [← Back to Blog](https://umesh-malik.com/blog) # AI Coding Agents 18 articles [![Memory comparison between rust-analyzer and Rust Glancer showing the dramatic reduction from gigabytes to under 100MB](https://umesh-malik.com/blog/rust-glancer-low-memory-lsp-cover.png) AI Coding Agents & DX • Aug 23, 2026 ### Rust LSP Low Memory: How to Run Glancer Locally on 8GB RAM Rust LSP low memory is achievable: Rust Glancer runs on 8GB machines by freezing analysis at save and offloading to disk. 8 min read Read more →](https://umesh-malik.com/blog/rust-glancer-low-memory-lsp) [![Architecture diagram of a self-hosted AI coding agent with sandboxed execution](https://umesh-malik.com/blog/self-hosted-ai-coding-agent-sandbox-cover.png) AI Coding Agents & DX • Aug 23, 2026 ### Self-Hosted AI Coding Agent: Sandboxed Prompt-to-Deploy for $25/mo Build a self-hosted AI coding agent with sandboxed execution. One prompt produces a repo, tests, CI, and deployed app — $25/mo, no cloud bills. 7 min read Read more →](https://umesh-malik.com/blog/self-hosted-ai-coding-agent-sandbox) [![Swapping bespoke search tools for generic grep, glob and view raised Copilot code review cost until the system prompt was rewritten to be diff-anchored](https://umesh-malik.com/blog/cut-agent-tool-call-cost-prompt-rewrite-cover.png) AI Coding Agents & DX • Aug 14, 2026 ### Cut agent tool call cost: GitHub's 20% fix was a prompt rewrite Agent tool call cost jumped after you gave it better tools? GitHub hit that on Copilot code review and won ~20% back with a prompt rewrite, not new tools. 9 min read Read more →](https://umesh-malik.com/blog/cut-agent-tool-call-cost-prompt-rewrite) [![A research spike shipped as running code surfaces engine-specific blockers a design doc would have missed](https://umesh-malik.com/blog/research-spike-as-running-code-cover.png) AI Coding Agents & DX • Aug 13, 2026 ### Build your research spike as running code: 8 blockers a doc missed A research spike should ship as running code, not a design doc. alchemy-utils surfaced 8 engine blockers a doc would miss, and priced the fix at 3-5 weeks. 10 min read Read more →](https://umesh-malik.com/blog/research-spike-as-running-code) [![The four-step loop for learning a complex topic by having an AI coding agent build an interactive simulation of it](https://umesh-malik.com/blog/learn-complex-topics-claude-code-simulations-cover.png) AI Coding Agents & DX • Aug 11, 2026 ### Learn Complex Topics With Claude Code: Build a Simulation, Not Notes Learn complex topics with Claude Code by building a small simulation of the mechanism: the 4-step loop, the fact-check gate LLMs skip, and how to ship it free. 8 min read Read more →](https://umesh-malik.com/blog/learn-complex-topics-claude-code-simulations) [![Muse Glimmer 30B memory ladder showing 55GB at full precision shrinking to under 20GB with 4-bit K-Quant compression](https://umesh-malik.com/blog/run-muse-glimmer-30b-locally-cover.png) AI Coding Agents & DX • Aug 11, 2026 ### Run Muse Glimmer 30B locally: 55GB shrinks to under 20GB How to run Muse Glimmer 30B locally: the K-Quant setup that fits a single 24GB GPU, the drafter model that triples decode speed, and where it breaks. 8 min read Read more →](https://umesh-malik.com/blog/run-muse-glimmer-30b-locally) [![Cover card titled Approve, subtitled One in three gets through, with three statistics: 409,000 approve or deny decisions analysed, 66.3% mean accuracy, and 52.5% miss rate on npm-disguised exfiltration](https://umesh-malik.com/blog/ai-agent-permissions-approval-fatigue-cover.png) AI Security • Aug 7, 2026 ### Configuring AI Agent Permissions: Humans Miss 1 in 3 Threats 409,000 approve/deny decisions show humans miss 1 in 3 agent threats, and 52.5% of npm-shaped exfiltration. The AI agent permissions config that works instead. 10 min read Read more →](https://umesh-malik.com/blog/ai-agent-permissions-approval-fatigue) [![The browsing loop a code-review agent enters under generic tool instructions, versus the diff-anchored evidence path review-shaped instructions produce](https://umesh-malik.com/blog/writing-agent-tool-instructions-cover.png) AI Coding Agents & DX • Aug 7, 2026 ### Fix your agent tool instructions: GitHub's 20% review-cost cut Agent tool instructions decide what your agent costs. GitHub kept the same grep/glob/view toolset, rewrote the guidance, and cut review cost by ~20%. 9 min read Read more →](https://umesh-malik.com/blog/writing-agent-tool-instructions) [![Rust LLM policy: AI allowed for review and analysis, banned for creating code and prose](https://umesh-malik.com/blog/rust-llm-policy-ai-generated-code-cover.png) AI Coding Agents & DX • Aug 6, 2026 ### Rust LLM Policy: Use AI to Review, Not to Create The Rust LLM policy bans AI-created code and prose but allows AI review, analysis, and bug-finding. Here's the exact rule, why it works, and how to copy it. 10 min read Read more →](https://umesh-malik.com/blog/rust-llm-policy-ai-generated-code) [![Cover for the Claude Opus 5 guide: benchmarks, the $5/$25 cost math, effort levels, and the two API breaking changes in the Opus 4.8 migration](https://umesh-malik.com/blog/claude-opus-5-guide-cover.png) LLM Engineering • Jul 24, 2026 ### Claude Opus 5 Migration: The Two API Changes That Break Your Code Two API changes break a Claude Opus 5 migration, and the effort parameter needs re-sweeping, not reusing. The fixes, the real cost math, and the benchmarks. 12 min read Read more →](https://umesh-malik.com/blog/claude-opus-5-guide) [![Cover for the Claude Fable 5 deep-dive guide: capabilities, the $10/$50 cost math, API behavior, and when to use Anthropic's most capable model](https://umesh-malik.com/blog/claude-fable-5-guide-cover.png) LLM Engineering • Jul 2, 2026 ### Claude Fable 5: Capabilities, Cost & When to Use It (2026) Claude Fable 5 is Anthropic's most capable model yet. The honest deep-dive: capabilities, the $10/$50 cost math, API behavior, and when to use it. 12 min read Read more →](https://umesh-malik.com/blog/claude-fable-5-guide) [![Cover for the Claude Sonnet 5 guide: benchmarks, pros and cons, use cases, and cost math versus Sonnet 4.6 and Opus 4.8](https://umesh-malik.com/blog/claude-sonnet-5-guide-cover.png) LLM Engineering • Jul 1, 2026 ### Claude Sonnet 5 for Coding: The Tokenizer Change That Moves Your Bill Claude Sonnet 5 for coding lands near Opus level at Sonnet prices — until the tokenizer change moves your bill. The real cost math, and when it beats Opus 4.8. 8 min read Read more →](https://umesh-malik.com/blog/claude-sonnet-5-guide) [![Field report cover: a week of running Claude Code auto mode in production, showing what it nailed, where it broke, and the cost](https://umesh-malik.com/blog/claude-code-auto-mode-production-field-report-cover.png) AI Coding Agents & DX • Jun 25, 2026 ### Is Claude Code Auto Mode Reliable in Production? A Field Report I ran Claude Code auto mode in production for a week — where it's reliable, where it broke, real token costs from my usage logs, and my honest verdict. 6 min read Read more →](https://umesh-malik.com/blog/claude-code-auto-mode-production-field-report) [![Decision matrix cover comparing Claude Code, Cursor, and GitHub Copilot for real production work in 2026](https://umesh-malik.com/blog/claude-code-vs-cursor-production-work-2026-cover.png) AI Coding Agents & DX • Jun 25, 2026 ### Claude Code vs Cursor for Production: A Shipping Engineer's Field Report (2026) Claude Code vs Cursor for production, field-tested on real shipping tasks: a working engineer's decision table, failure modes, pricing, and which to use when. 5 min read Read more →](https://umesh-malik.com/blog/claude-code-vs-cursor-production-work-2026) [![Cover comparing free and paid access to Claude Code, Codex, Gemini CLI, and GitHub Copilot AI coding agents in 2026](https://umesh-malik.com/blog/use-claude-code-codex-for-free-cover.png) AI Coding Agents & DX • Jun 23, 2026 ### Can You Use Claude Code and Codex for Free? Honest 2026 Guide The honest answer to using Claude Code and Codex for free in 2026: what's truly $0, what isn't, the best free AI coding CLIs, and how to cut your bill. 7 min read Read more →](https://umesh-malik.com/blog/use-claude-code-codex-for-free) [![Cover showing the one-day flow of Claude Fable 5 building a streaming microservice: spec, infrastructure, code, and ship](https://umesh-malik.com/blog/claude-fable-5-streaming-microservice-one-day-cover.png) AI Coding Agents & DX • Jun 13, 2026 ### How I Built a Full Audio/Video Streaming Microservice in One Day with Claude Fable 5 Auto Mode Claude Fable 5 in auto mode built my entire HLS streaming microservice in under a day — AWS infra, security, backend, frontend, CI/CD, migrations, runbooks. 11 min read Read more →](https://umesh-malik.com/blog/claude-fable-5-streaming-microservice-one-day) [![Comparison of Cursor, Claude Code, and GitHub Copilot AI coding tools](https://umesh-malik.com/blog/cursor-vs-claude-code-vs-copilot-cover.png) AI Coding Agents & DX • Jun 8, 2026 ### Cursor vs Claude Code vs Copilot (2026): Which Tool for What Cursor vs Claude Code vs Copilot in 2026 — how they actually differ in model, workflow, and autonomy, and which to use for what (I use all three). 5 min read Read more →](https://umesh-malik.com/blog/cursor-vs-claude-code-vs-copilot) [![Anatomy of an effective CLAUDE.md project context file for Claude Code](https://umesh-malik.com/blog/how-to-write-claude-md-cover.png) AI Coding Agents & DX • Jun 8, 2026 ### How to Write a CLAUDE.md That Actually Helps How to write a CLAUDE.md that actually helps Claude Code: what to include, what to leave out, a real structure, and how to stop it from rotting. 7 min read Read more →](https://umesh-malik.com/blog/how-to-write-claude-md)