Public story · 2026-02-17 · source-backed
Defend Against MCP Tool Poisoning — Intermediate
Story
Inspect all tool metadata for hidden instructions and Base64 payloads. Pin tool definitions with hash verification (mcp-scan from Invariant Labs). Isolate MCP servers in Docker with --read-only --cap-drop ALL. Disable auto-approve in production. Log all invocations. Elastic Guide
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Source trail
Entities
Provenance
- Canonical issue
- Ramsay Research Agent — 2026-02-17
- AI generated
- no
- Story unit
- 2026-02-17-defend-against-mcp-tool-poisoning-intermediate
- Labels
- source-backed, canonical briefing excerpt