SIGNAL
Tracking the global AI frontier — labs · research · agents · policy
Frontier Signal

Agents

The agentic stack, tracked daily: MCP and A2A protocols, LangChain/LangGraph, Claude Code, OpenAI Agents SDK, agent frameworks, benchmarks and orchestration patterns.

The agentic stack, tracked daily: MCP and A2A protocols, LangChain/LangGraph, Claude Code, OpenAI Agents SDK, agent frameworks, benchmarks and orchestration patterns.

Latest in Agents

30 stories
OpenAI Agents SDK v0.16.0
Agents

OpenAI Agents SDK v0.16.0

OpenAI Agents SDK v0.16.1
Agents

OpenAI Agents SDK v0.16.1

OpenAI Agents SDK v0.17.0
Agents

OpenAI Agents SDK v0.17.0

OpenAI Agents SDK v0.17.1
Agents

OpenAI Agents SDK v0.17.1

OpenAI Agents SDK v0.17.2
Agents

OpenAI Agents SDK v0.17.2

OpenAI Agents SDK v0.17.3
Agents

OpenAI Agents SDK v0.17.3

OpenAI Agents SDK v0.17.4
Agents

OpenAI Agents SDK v0.17.4

Claude Code v2.1.166
Agents

Claude Code v2.1.166

Claude Code v2.1.169
Agents

Claude Code v2.1.169

Claude Code v2.1.170
Agents

Claude Code v2.1.170

Claude Code v2.1.172
Agents

Claude Code v2.1.172

OpenAI Agents SDK v0.17.5
Agents

OpenAI Agents SDK v0.17.5

Claude Code v2.1.173
Agents

Claude Code v2.1.173

Claude Code v2.1.174
Agents

Claude Code v2.1.174

Claude Code v2.1.175
Agents

Claude Code v2.1.175

The Model Context Protocol Blog
Agents

The Model Context Protocol Blog

The official Model Context Protocol blog — updates, tutorials, and insights from maintainers and contributors.…

Building to Last: A New Governance Model for MCP
Agents

Building to Last: A New Governance Model for MCP

Introducing MCP's formal governance model: Specification Enhancement Proposals (SEPs), a maintainer structure, and a community-driven process for evolving t…

MCP Prompts: Building Workflow Automation
Agents

MCP Prompts: Building Workflow Automation

A practical guide to building workflow automation with MCP prompts and resource templates, demonstrated through a meal planning example.…

Evolving OAuth Client Registration in the Model Context Protocol
Agents

Evolving OAuth Client Registration in the Model Context Protocol

The Model Context Protocol (MCP) has adopted OAuth 2.1 as the foundation for its authorization framework. A key part of the authorization flow that MCP is parti…

Announcing the Official PHP SDK for MCP
Agents

Announcing the Official PHP SDK for MCP

The official PHP SDK for the Model Context Protocol is now generally available, built in collaboration with the PHP Foundation and Symfony.…

Introducing the MCP Registry
Agents

Introducing the MCP Registry

Launching the MCP Registry in preview: an open catalog and API for discovering publicly available MCP servers.…

Update on the Next MCP Protocol Release
Agents

Update on the Next MCP Protocol Release

An update on the timeline and priorities for the next Model Context Protocol specification version…

Server Instructions: Giving LLMs a user manual for your server
Agents

Server Instructions: Giving LLMs a user manual for your server

How server instructions give LLMs the context they need to use your MCP server's tools effectively — an underused protocol feature with outsized impact.…

Adopting the MCP Bundle format (.mcpb) for portable local servers
Agents

Adopting the MCP Bundle format (.mcpb) for portable local servers

The MCP Bundle format (.mcpb) joins the MCP project, enabling one-click installation of local servers across any compatible client.…

MCP Apps: Extending servers with interactive user interfaces
Agents

MCP Apps: Extending servers with interactive user interfaces

Introducing the MCP Apps Extension proposal (SEP-1865) to standardize interactive user interfaces in MCP, developed with the MCP-UI creators and maintainers fro…

One Year of MCP: November 2025 Spec Release
Agents

One Year of MCP: November 2025 Spec Release

MCP turns one — a look back at the year, plus the full details of the November 2025 specification release.…

SEPs Are Moving to Pull Requests
Agents

SEPs Are Moving to Pull Requests

SEPs are moving from GitHub Issues to pull requests against the seps/ directory — why, and what changes for contributors.…

MCP joins the Agentic AI Foundation
Agents

MCP joins the Agentic AI Foundation

Anthropic is donating MCP to the newly formed Agentic AI Foundation under the Linux Foundation, ensuring vendor-neutral governance for the protocol's future…

Exploring the Future of MCP Transports
Agents

Exploring the Future of MCP Transports

The Transport Working Group's plan to evolve MCP beyond Streamable HTTP for enterprise-scale remote deployments.…

January MCP Core Maintainer Update
Agents

January MCP Core Maintainer Update

Core Maintainer team changes for 2026: departing members, new additions, and what's ahead for MCP governance.…