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From a model to a system that acts
Understand the harness around a model and its tools.
How it works
Reasoning & agents
A harness organises calls, supplies context, manages task state and runs tools within permissions. Returned observations can trigger another step or a check. MCP specifies standardised exchanges; it is not a complete execution harness.
Check my understanding
Before answering, form your own explanation.
Installing MCP guarantees that an assistant will complete every action autonomously.
Takeaway
A persuasive explanation does not prove a result correct. Autonomy depends on access, success criteria, stopping conditions and recovery. Evaluate the complete system on the intended task.
Go deeperFrom concept to practicePut it into practice
Scientific sources
- Model Context ProtocolModel Context Protocol — IntroductionOriginal publication
- Chollet · 2019On the Measure of IntelligenceOriginal publication
Teaching synthesis of the cited sources. Published results remain tied to their tasks, protocols and budgets.