MCP App StoreLe meilleur de l'écosystème IA et MCP, sélectionné chaque jour.
Sources
OpenAI has launched the Codex app for macOS, providing a dedicated command center for AI-driven software development. It supports multi-agent coordination and parallel workflows for managing complex, long-running coding tasks.
OpenAI detailed its internal data agent leveraging GPT-5 and Codex to perform reasoning over massive datasets. The system emphasizes reliability and speed in delivering insights, showcasing advanced agentic memory and data processing patterns.
OpenAI is retiring GPT-4o, GPT-4.1, and o4-mini from ChatGPT as of February 13, 2026. Note that these changes currently apply only to the ChatGPT interface and do not affect API access.
OpenAI has implemented built-in safeguards to prevent prompt injection and data exfiltration when AI agents interact with external URLs. This is a critical security update for those building agentic workflows.
LinkedIn's AI team shares a practical retrospective on training GPT-OSS with agentic reinforcement learning — covering the infrastructure challenges, reward design decisions, and lessons learned from scaling RL training to production-grade agent models. One of the more candid engineering accounts of what it actually takes to do agentic RL at scale.
OpenAI has launched Prism, a free LaTeX-native workspace featuring integrated GPT-5.2. It aims to streamline academic research by combining writing, collaboration, and reasoning in a single environment.
MCP Apps launched as the first official MCP extension, enabling tools to return interactive UI components — dashboards, forms, visualisations, multi-step workflows — that render directly in the conversation. Built as an open standard in collaboration with OpenAI and the MCP-UI community. A landmark moment for the MCP ecosystem that expands what MCP servers can deliver beyond plain text.
A technical breakdown of the Codex agent loop, detailing how the Codex CLI manages models and prompts via the Responses API. Essential reading for those building agentic CLI tools.
The MCP Core Maintainer team announces changes for 2026: Inna Harper and Basil Hosmer are stepping back, with new maintainers joining to keep the project moving. Also covers what's ahead for MCP governance as the protocol moves under the Agentic AI Foundation. Good context for anyone tracking MCP's organisational trajectory.
OpenAI shares their architecture for scaling PostgreSQL to handle millions of queries per second. The system leverages a combination of replicas, aggressive caching, and workload isolation to maintain performance for 800 million users.
OpenAI explains how to build a systematic eval harness for agent skills — turning skills into testable, scoreable artefacts you can improve over time. The post covers designing eval cases, running them via the Codex evals framework, and iterating on skill quality based on results. A must-read for anyone shipping agent skills to production.
Anthropic shares what they learned from three iterations of a performance engineering take-home assessment that Claude kept solving correctly — forcing them to redesign it to remain useful for hiring. The post is a practical guide to crafting technical evals that test genuine human reasoning rather than tasks AI can trivially handle. Useful for any team still using take-home coding challenges.
Hugging Face marks one year since DeepSeek-R1 shocked the AI world by matching frontier performance at a fraction of the cost, fundamentally changing assumptions about what open-source models can achieve. The post reflects on how that moment catalysed a wave of open-weight model development and reshaped the competitive landscape between open and closed AI.
OpenAI launches ChatGPT Go, providing worldwide access to the GPT-5.2 Instant model. It features higher usage limits and expanded memory to make advanced AI more accessible and affordable globally.
Hugging Face launched Open Responses — an open-source implementation of the Responses API spec, letting developers use the same agent-friendly API pattern against any open-weight model instead of being locked to OpenAI's hosted version. Compatible with OpenAI's SDK, making migration straightforward. Important infrastructure for the open-source agent ecosystem.
Skyscanner integrated Codex CLI with JetBrains IDEs via MCP, enabling in-IDE AI assistance for debugging, test generation, and development workflows without switching to a separate tool. The post details their MCP server setup, the JetBrains plugin integration, and productivity gains observed across the engineering team. A solid real-world MCP adoption case study.
A practical breakdown of how to design, run, and interpret evaluations specifically for agentic systems — covering trajectory evals, outcome evals, LLM-as-judge approaches, and the unique challenges agents pose vs. static model benchmarks. Anthropic draws on their experience evaluating Claude Code and research agents. One of the most useful practical guides on agent evals published to date.
OpenAI introduces enterprise-grade AI for healthcare, focusing on HIPAA compliance and reducing administrative burden in clinical workflows.
A showcase of a voice-first AI companion leveraging GPT-5.1. It focuses on low-latency responses and memory-driven personalities for natural, real-time conversations.
OpenAI launches ChatGPT Health, a secure experience that integrates personal health data and apps. The feature emphasizes physician-informed design and strict privacy protections.