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11:30
2026-09-01
dev.to
developer-tools

aimock: Deterministic Mock Infra for AI Apps

CopilotKit's open-source mock server aimock has surpassed 2.5 million weekly installs, providing deterministic test infrastructure for AI applications. The tool allows developers to mock LLM endpoints…

11:24
2026-09-01
dev.to
artificial-intelligence

AI - Powered Automatic Email Sending System for File Uploads

A developer has created an AI-powered automatic email sending system that integrates file uploads, document text extraction, AI-generated email content, and automated email delivery into a single work…

11:05
2026-09-01
dev.to
ai-safety

First Action After Compromise: Blind the Audit

A developer detailed how attackers can blind AWS audit trails by calling `cloudtrail stop-logging`, which halts event delivery while leaving the trail's configuration looking healthy. The post highlig…

10:29
2026-09-01
dev.to
developer-tools

What a seller-side HTTP 402 + MCP paywall looks like

A developer has released x402-micro-tollgate, an open-source Express process that acts as both an HTTP 402 reverse proxy and an MCP server, enabling agents to pay per API call without API keys. The to…

10:03
2026-09-01
dev.to
developer-tools

The Numerical Siblings: NumPy and Numba — Different Lives

A developer discovered that NumPy's vectorized operations can be slowed by Python overhead in loops, and found that Numba's JIT compilation significantly improved performance. The post explains how Nu…

10:02
2026-09-01
dev.to
ai-agents

Five things to check your agent memory store against

A developer from the Engrava project outlines five failure modes to check agent memory stores against, including hallucinated metadata, stale facts, and missing conflict resolution. The post highlight…

09:29
2026-09-01
dev.to
artificial-intelligence

Build a Private Mistral Codebook Generator

A developer published a tutorial outlining a private qualitative-research codebook workflow using Mistral Small 3.1, Ollama, and FastAPI. The guide emphasizes a verification-first approach, cautioning…

09:09
2026-09-01
dev.to
developer-tools

Your agent trusts the first match. Should it?

A developer discovered that an MCP codebase-intelligence server can return the wrong function definition when multiple symbols share the same name, because the lookup uses `.find()` and returns the fi…

08:25
2026-09-01
dev.to
ai-agents

Silent success is worse than a loud agent crash

An engineer warns that AI agents failing silently—returning a 'done' status without actually executing tasks—is a more costly failure mode than loud crashes. The developer advocates for shifting focus…

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