Prompt Injection Reframed as a Data Plane Problem

On October 6, 2026, a DEV Community article argued that prompt injection shouldn't be left to smarter models to solve. Instead, the way SQL injection was solved with parameterized queries, the boundary should be drawn where the agent actually takes action—at tool invocation. The author calls this a "data plane problem" and argues the defense should move from the model side to the tool-invocation side. For now this is still the author's own position; the coverage gives no concrete implementation or real-world case, and no conflicting reports have appeared.

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