Model Context Protocol server for CyberChef — exposes GCHQ's "Cyber Swiss Army Knife" as AI-agent tools: 504 operations across encryption, encoding, compression and forensics, on MCP protocol revision 2026-07-28
Latest release v4.2.0 — Release v4.2.0 · 12 Sept 2026
6 files for GitHub Copilot, Claude Code, Codex and OpenCode: CyberChef-MCP copilot-instructions.md, CyberChef-MCP mcp-layer.instructions.md, CyberChef-MCP upstream-sync.instructions.md, CyberChef-MCP workflows.instructions.md and 2 more — 15,869 tokens loaded in every session.
.github/copilot-instructions.md A 1,949 tok .github/instructions/mcp-layer.instructions.md A 527 tok .github/instructions/upstream-sync.instructions.md A 275 tok .github/instructions/workflows.instructions.md A 467 tok CLAUDE.md A 3 tok AGENTS.md C 12,648 tok These files are doublegate/CyberChef-MCP's own configuration — they tell GitHub Copilot, Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.