Why is there no standard protocol between agents and model providers yet?
Ikassam · reddit · 2026-10-02
- A Reddit discussion: tools have MCP, agent-to-agent has ACP, but there's no standard protocol between agent harnesses and model providers.
- Caching, reasoning params, tool semantics, capability declarations, auth, and usage accounting all differ across OpenAI, Anthropic, and Gemini; OpenAI-compatible APIs only paper over the surface and break once you use provider-specific features.
- The poster asks whether any standardization effort exists at this layer.
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