✨ A customizable copilot-instructions.md ruleset & prompts to guide GitHub Copilot toward secure coding defaults in Java, Node.js, C# and Python. Blocks risky patterns, teaches safe habits.
Latest release V_1.0.0 — Version 1.0.0 · 24 Apr 2025
12 files for Claude Code, GitHub Copilot and Codex: appsec-library-maintainer, markdown-customizations, mcp-protocol-engineer, mcp-security-hardener and 8 more — 1,869 tokens loaded in every session.
.github/copilot-instructions.md A 826 tok .github/instructions/copilot-customization-files.instructions.md A 328 tok .github/instructions/mcp-server.development.instructions.md A 346 tok .github/instructions/security-library-authoring.instructions.md A 369 tok .github/skills/markdown-customizations/SKILL.md A 31 tok .github/agents/appsec-library-maintainer.agent.md A 42 tok .github/agents/markdown-customizations.agent.md A 32 tok .github/agents/mcp-protocol-engineer.agent.md A 31 tok .github/agents/mcp-security-hardener.agent.md A 34 tok .github/agents/mcp-server-orchestrator.agent.md A 33 tok .github/agents/mcp-tool-author.agent.md A 29 tok .github/agents/security-prompt-engineer.agent.md A 30 tok These files are Robotti-io/copilot-security-instructions's own configuration — they tell Claude Code, GitHub Copilot and Codex 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.