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Security: agentstacktech/cursor-plugin

Security

SECURITY.md

Security Policy

Report vulnerabilities to support@agentstack.tech (preferred) or via GitHub Security Advisories on agentstacktech/cursor-plugin.

What this plugin does

  • Ships Markdown rules / skills / commands (guidance) plus local Node hooks.
  • Connects Cursor to https://agentstack.tech/mcp via OAuth 2.1 Device Code (/agentstack-init).
  • Access tokens live in ~/.cursor/mcp.json under mcpServers.agentstack.headers. Refresh token: ~/.cursor/agentstack-refresh (mode 0600 where supported).
  • MCP registration is user config only (no plugin-embedded MCP server since 0.4.16).
  • Telemetry is opt-in (agentstack.sendTelemetry: true). No prompt text is uploaded.

Shared machines

Bearer tokens in plaintext MCP config are a Cursor platform constraint. On shared OS accounts, clear MCP auth when done. Windows: file mode bits may be a no-op — rely on NTFS ACLs for your user profile.

Shell hook pre-shell-scan.mjs blocks obvious secret leaks in shell (e.g. raw API keys in curl headers).

Monorepo reviewer facts: docs/plugins/CURSOR_PLUGIN_SECURITY_REVIEW_PREP.md.

There aren't any published security advisories