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Dev.to

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21:58
2026-07-13
dev.to
developer-tools

I built a local token cost tracker for Claude Code in Rust

A developer built agentwatch, a local HTTP proxy in Rust that tracks token usage and costs for AI coding agents like Claude Code, Codex, and Gemini CLI. The tool runs as a single binary, stores data i…

21:38
2026-07-13
dev.to
ai-agents

Audit-log every email your AI agent sends

Nylas engineer demonstrates how to build an immutable audit trail for AI agent email activity, emphasizing that the live mailbox is not a defensible record. The design uses a separate write-once-read-…

21:37
2026-07-13
dev.to
ai-agents

Escalate an AI email agent's thread to a human

Nylas engineer shows how to build an escalation path for AI email agents that need to hand off threads to humans. The approach uses a custom 'Needs human' folder and a separate pause flag in the devel…

21:37
2026-07-13
dev.to
ai-agents

Require human approval before your agent sends email

Nylas developer advocate builds an approval queue for AI email agents using the Nylas Drafts API, ensuring that no email is sent without human review. The system stages agent-generated messages as dra…

21:21
2026-07-13
dev.to
artificial-intelligence

The Librarian Pattern: websites you talk to instead of browse

Eduard Gutarin, founder of AskBar, introduced the Librarian Pattern, a website design that replaces traditional navigation with a conversational interface that asks users what they need and assembles …

20:39
2026-07-13
dev.to
generative-ai

A Practical Workflow for Reusable AI Image Prompts

A developer outlines a structured workflow for AI image generation that treats prompts as reusable specifications rather than one-off sentences. The approach uses prompt contracts, reference images wi…

20:37
2026-07-13
dev.to
artificial-intelligence

Bootcamp Grad Explores Open-Source AI APIs: What I Learned

A coding bootcamp graduate discovered that open-source AI models like Qwen3 and DeepSeek offer comparable quality to GPT-4o at a fraction of the cost, with some models priced as low as $0.01 per milli…

20:32
2026-07-13
dev.to
developer-tools

Your First MCP Server Is Easy. The Second One Is the Problem

Most teams write their first MCP server in an afternoon and then lose a week to the second one, according to a developer. The first server is easy because the developer is the only user, but scaling i…

20:23
2026-07-13
dev.to
developer-tools

I Finally Built the Dev Opportunity Radar Website ❤️

A developer built the Dev Opportunity Radar website using Google AI Studio to make grants, fellowships, hackathons, and other opportunities easier to browse and search. The site complements the weekly…

20:20
2026-07-13
dev.to
artificial-intelligence

AI Coding's Real Bottleneck Is Repository Execution Trust

A developer argues that the main bottleneck in AI coding has shifted from code generation to repository execution trust. The developer states that agents need repositories to expose trustworthy execut…

20:15
2026-07-13
dev.to
ai-safety

Your AI code reviewer ran my malware (85% hit rate)

The AI Now Institute published a proof-of-concept attack called Friendly Fire that achieves an 85% hit rate against AI coding agents. Researchers Boyan Milanov and Heidy Khlaaf planted a malicious scr…

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