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18:18
2026-07-30
dev.to
artificial-intelligence

Do unused MCP tools cost you money?

A developer benchmarked two identical MCP agents, one with a single GitHub server and one with three additional unused servers, and found the latter cost 28% more per question due to extra input token…

18:18
2026-07-30
dev.to
artificial-intelligence

Route Voicemails with Python and Telnyx AI

Telnyx released a Python Flask example that uses AI to classify voicemails and route them to appropriate workflows such as Slack alerts, email, or ticket queues. The app transcribes audio voicemails, …

17:50
2026-07-30
dev.to
artificial-intelligence

Skills vs MCP: How AI tools have evolved

A developer explores the evolution from MCP to Skills in AI tooling, noting that Skills enable non-developers to write and share instructions for agents without code. The developer quotes Greggyb sayi…

16:35
2026-07-30
dev.to
ai-agents

How to Test AI Agents Without Calling More LLMs

A developer argues that AI-agent testing should separate orchestration correctness from language quality, using deterministic checks for tool order, retry limits, and state transitions instead of rely…

16:26
2026-07-30
dev.to
large-language-models

Trace digests for LLM monitoring, at 1/30th the price of Sonnet

Glassray, an eval platform for AI agents, replaced Claude Sonnet 4.6 with gpt-4o-mini for generating trace digests, achieving the same search quality at 1/30th the cost. The team tested four cheaper m…

16:16
2026-07-30
dev.to
artificial-intelligence

Your AI Memory Store Needs a Delete Key

A developer proposes a memory lifecycle system for AI applications that includes creation, promotion, consolidation, and forgetting to address issues of contradiction, staleness, cost, and retrieval n…

16:02
2026-07-30
dev.to
artificial-intelligence

Building a Transformer from Scratch in PyTorch

A developer built a transformer model from scratch using pure PyTorch, without relying on libraries like HuggingFace, to gain a deeper understanding of the architecture. The project involved implement…

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