Conclusion: Ready for AI Agents in TPRM?
Let’s Wrap It Up !
MCP, A2A, LCEL — Same Orchestra, Different Instruments:
We’ve covered a lot of ground, but before we call it a day, here’s a quick and snappy recap of how MCP, A2A, and LCEL stack up when it comes to multi-agent collaboration.
- MCP (Message Control Protocol) - keeps the wires clean and the traffic flowing. Think of it as the traffic cop: stateless, simple, and focused on message routing and execution order.
- A2A (Agent-to-Agent) - is more like the translator at the roundtable. It ensures agents speak the same conceptual language, defining structured messages and intent formats.
- LCEL (Language for Coordinated Emergent Logic) - takes the role of the composer, enabling agents to orchestrate more complex reasoning and collaborative workflows in a readable, logic-first syntax.
These aren’t competing tools — they’re different gears in the same engine, each solving a layer of the coordination puzzle.
So… Are We There Yet?
While these protocols lay down the tracks, the train is still learning to run without bumping into itself. Some key challenges remain:
- Context isn’t sticky yet: Agents still lose track of long-term memory or shared understanding in dynamic tasks.
- Tool use isn’t fully plug-and-play: Autonomy often depends on tightly tuned prompts or rigid APIs.
- Graceful failure is rare: Agents struggle with recovery and improvisation when things go sideways.
- Collaboration lacks depth: Reasoning about others’ beliefs, knowledge, or goals — the so-called “theory of mind” — is still in its early days.
- Security still has blind spots: Agents can unintentionally leak sensitive data, misuse tools, or fall for adversarial prompts. With great autonomy comes great attack surface. Protocols help organize the system — but they don’t guarantee it’s secure.
These protocols take us several steps closer to seamless agent collaboration — but they don’t solve the whole game. Coordination is easier, but not effortless. As we keep building better brains behind the agents, these frameworks will become even more powerful.
