Topic
Patterns for letting agents invoke external services as tools rather than authoring API requests themselves.
Django-Modern-Rest 0.16.0 ships with Pydantic, msgspec and attrs support, so a typed body can reject a malformed agent call before business logic. How strict that rejection is in production comes down to the model each endpoint declares.
Reality
Pi made MCP a core feature in version 0.99.0 on September 29, 2026, after its creator Mario Zechner spent over a year arguing against the protocol. In Pi, models call MCP tools from JavaScript in a QuickJS sandbox, so tool schemas are not preloaded into context.
Reality
Microsoft treats speech as its own agent kind, with a managed realtime orchestrator holding the socket open. A dev.to walkthrough sets out why turn detection and tool calls had to be restructured around a few hundred milliseconds.
Reality
A dev.to architecture review would let a planner commit a mutating tool step only after a write receipt joins a live sandbox epoch. The author is explicit that the fixture is a proposed simulator, not an executed test.
Reality
A single-box test on Ollama 0.34.0 shows a turn chained with previous_response_id coming back HTTP 200 and status completed at the same 41 input tokens as the same question sent with no history at all. The request struct has no field for the key.
Reality
Model-level guardrails check the prompt and the response, which leaves the parameters the model just chose for a tool unexamined. AWS's answer is three lifecycle hooks, and the per-turn cost is yours to measure.
Reality
PDF4me's guide wires the same server into five clients using three structurally different config blocks. Get the shape wrong and no client raises an error.
Reality