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The Agent-Native Security Stack: How MCP Is Reshaping Application Security Workflows

Developers don’t start their day in security platforms anymore — they start in AI assistants like Claude Code and Cursor, and a growing share of the work is executed by agents with no human in the loop. Security that lives outside those conversations isn’t just inconvenient; it’s invisible. This whitepaper makes the case for an agent-native security stack: application security delivered through Model Context Protocol (MCP) integration deep enough to act, not just answer. Inside, you’ll find why tool access is not workflow depth, what enterprise-ready MCP requires, and how to roll it out from evidence rather than enthusiasm.