Decide whether a task should use pasted context or a connected tool call.
Hook You paste a policy into chat, get a useful answer, and then learn the policy changed yesterday. Teach Copy-paste is fine when the context is small, stable, and safe to share. A tool call is better when the truth changes, the answer needs live state, the task needs a calculation, or the assistant must cite the system of record. MCP tools let a server expose a named capability with a schema, so the model can request the right operation instead of guessing from stale pasted text. The practical test is simple. Paste when the source is short, non-sensitive, and…
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