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Dev.to

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09:30
2026-07-22
dev.to
large-language-models

What is a context window, actually?

A developer explains that an LLM's context window is the total number of tokens it can process at once, and that exceeding this limit causes older information to be forgotten. The post also covers ret…

09:00
2026-07-22
dev.to
ai-tools

Claude Code's 17 Official Skills: the Rule vs the Practice

Anthropic's official Claude Code skills reveal a gap between documented rules and actual practice. The developer analyzed all 17 official skills and found that the 500-line limit for SKILL.md is a gui…

09:00
2026-07-22
dev.to
artificial-intelligence

MCP server cards explained

Turva.dev has published a guide explaining MCP server cards, small JSON files that allow AI agents to discover and connect to a site's Model Context Protocol server without manual configuration. The c…

08:28
2026-07-22
dev.to
artificial-intelligence

Substack's New AI Detector Has the Same Blind Spot DEV.to's Did

Substack launched an AI detector powered by Pangram to scan posts and comments for AI-generated text, but the tool inherits the same blind spot as earlier detectors like DEV.to's 'Sloan': it flags wel…

08:12
2026-07-22
dev.to
artificial-intelligence

AI Coding Assistants Are Secretly Making Your Code Less Secure

A developer found that AI coding assistants like Cursor, Copilot, Lovable, and Bolt generate code with security flaws such as hardcoded API keys, permissive CORS settings, and missing input validation…

08:04
2026-07-22
dev.to
developer-tools

Why KoutenDB Exists: You Know the Center, Not the Boundary

KoutenDB is a new database that preserves locality at write time, enabling reads to start from a known center and explore context boundaries dynamically. It uses ring-based storage and stellar lenses …

08:00
2026-07-22
dev.to
artificial-intelligence

What Teaching a Machine to Think Taught Me

A developer competing in the ARC Prize 2026 benchmark, which tests AI's ability to learn novel games from scratch, describes building a custom agent that hand-crafts perception and decision-making whi…

07:51
2026-07-22
dev.to
artificial-intelligence

Comparing AI Agents Python Library Options for Production

A developer compares three Python libraries for building production AI agents: LangChain for flexibility, CrewAI for team-style orchestration, and LlamaIndex for data-centric retrieval. All three supp…

07:47
2026-07-22
dev.to
developer-tools

My OpenCode Database Was Mostly Empty Space

A developer discovered that their OpenCode database file had grown to 1.3 GB, but SQLite analysis revealed that 766 MB of that space was a freelist of reusable pages, not live data. The engineer expla…

06:01
2026-07-22
dev.to
artificial-intelligence

I Built 4 AI Products in 6 Weeks

A solo developer in Trinidad and Tobago built four AI products in six weeks using Claude AI and deployed them on Vercel. The products—ClientLoop AI, SiteCraft AI, ProvenStack AI, and The AI Income Sta…

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