Callability Is Not Operability: Controlled Interface Interventions for LLM Agents
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Zihao Wang
Author
Zihao Wang
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Terms in this piece · Glossary
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
MCP — The Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.
Why it matters
If you write MCPThe Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.Full definition → servers or AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → tools, this is a checklist for exposing the state an agent needs to recover: execution lifecycle, explicit external-effect semantics, machine-readable results, postcondition verification.
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