Let’s start with an overview of existing agent protocols:

https://arxiv.org/html/2504.16736v2

Model Context Protocol (MCP)

https://www.anthropic.com/news/model-context-protocol

https://modelcontextprotocol.io/

https://blog.sshh.io/p/everything-wrong-with-mcp

  • Protocol security
  • UI/UX Limitations
  • LLM Security
  • LLM Limitations

https://www.permit.io/blog/the-ultimate-guide-to-mcp-auth

  • MCP authentication

Agent to Agent (A2A) protocol

https://developers.googleblog.com/en/a2a-a-new-era-of-agent-interoperability/

UX challenges

https://justin.searls.co/posts/why-agents-are-bad-pair-programmers/

Infosec challenges

First, an analysis of (in)security of MCP implementations:

https://github.com/harishsg993010/damn-vulnerable-MCP-server

And a close look at the challenges related to choice of transport (stdio vs HTTP / SSE):

https://raz.sh/blog/2025-05-02_a_critical_look_at_mcp

https://forgecode.dev/blog/prevent-attacks-on-mcp/

Self-improving agents

Darwin Goedel Machines (DGMs)

https://arxiv.org/abs/2505.22954

https://richardcsuwandi.github.io/blog/2025/dgm/

Tools

Micro sandbox tor MCP

https://github.com/microsandbox/microsandbox

Terragon

To manage the work of multiple agents:

https://ymichael.com/2025/07/15/claude-code-unleashed.html

Provides seamless transition from background agents (running in the cloud) to local runs.

Details on the value of Claude Code

Hands-on projects

Coding agent in Go

https://github.com/ghuntley/how-to-build-a-coding-agent

Agent to support investment decisions

https://github.com/lastmile-ai/mcp-agent/tree/main/examples/usecases/mcp_realtor_agent

Building an agent

https://sketch.dev/blog/agent-loop

https://ampcode.com/how-to-build-an-agent

APIs called from LLMs

Stripe

https://docs.stripe.com/building-with-llms

Tool calling

https://jngiam.bearblog.dev/mcp-large-data/

MCP + ollama

https://www.polarsparc.com/xhtml/MCP.html

Agent Development Kit (ADK)

https://developers.googleblog.com/en/agent-development-kit-easy-to-build-multi-agent-applications

12-factor agents

https://github.com/humanlayer/12-factor-agents

Ecosysyem

Large list of available MCP servers

https://github.com/modelcontextprotocol/servers

Hands-on projects

Developing with GH Copilot Agent Mode

https://austen.info/blog/github-copilot-agent-mcp/