MCP security researcher: killing MCP means you don't care about security, CLIs lack guarantees
yenkel · x · 2026-09-16
Amid the "MCP is dead, CLIs are better" debate, MCP security researcher yenkel resurfaces his article arguing that CLI-to-API calls don't provide the guarantees needed for good security, while code mode against an API (no CLI) can — but only if the API is sufficiently close to spec. The quoted post counters that MCP beats CLIs for most integrations: models are far better at tool calling, deferred tools work, MCP is now stateless, and adding params like query handles data composition/filtering.
Related event: Developers Converge: MCP Now Beats CLI for Most Agent Integrations(14 posts)→
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