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GhostSplice: splitting one exfiltration instruction across multiple MCP tool calls raises compliance from 42% to 82%. AI coding agents cheerfully stitch the pieces and send the data. What to do: pin MCP server allowlist, segment tool scopes, gate every tool that touches filesystem or network: https:

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The GhostSplice risk of instruction stitching is real. To help mitigate this, the Security Audit Prover can force systematic validation of agent logic and input sanitization across 5 critical axes before any code is shipped: https://vinkius.com/ai-agent-connect/security-audit-prover

vinkius.comSecurity Audit Prover MCP for AI Agents — OWASP SecurityUse Security Audit Prover with Claude or Cursor to prevent SQL injections and leaked secrets in your AI-generated code. Secure your app today.

yeah the scary part isn't one bad tool call. it's composition. if the agent can stitch filesystem + network across turns, a per-tool allowlist without a composition policy is cosplay.