Independent · not affiliated with OpenAI343 plugins catalogued
On the Belt12 of 12 open · $19/mo
Ranked by public signals · not tested by us

The best Security & Governance plugins for ChatGPT & Codex

11 plugins in our Security & Governance shelf (Guards, audits and policy.), ordered by what we can actually measure: our editor's picks first, then GitHub stars (checked 2026-10-26). Archived repos go to the bottom.

Stars measure popularity, not quality or safety. We haven't installed or audited these; every description is the project's own. Read the code before you install anything. Paid placements never affect this order.

Most-starred right now: Agent Guard by JeongJaeSoon.

← Browse the Security & Governance shelf

#1

Agent Guard Editor's pick

Local-by-default, no-telemetry hooks block or mask secret leaks in Claude Code and Codex, with opt-in PII filtering and Git/CI backstops.

★ 34 · by JeongJaeSoon
#2

Supercov

Coverage, security and code quality for coding agents.

★ 157 · by supercorp-ai
#3

ArmorCodex

Intent-based security for Codex with MCP plan registration, policy gating, CSRG cryptographic proofs, and audit logging on `bash` and `apply_patch`.

★ 7 · by armoriq
#4

River Review

Versioned Skill Registry of code-review skills driven by a perspective-based review agent (code, security, performance, architecture, testing, adversarial) that verifies findings against the diff.

★ 7 · by s977043
#5

BurpSuite MCP Bridge

Bridge Burp Suite traffic, replay, rewrite rules, and evidence export into Codex through MCP for WSL, Windows, and macOS workflows.

★ 4 · by 6jeffr3y
#6

AxonFlow

Runtime governance for Codex with policy enforcement on terminal commands, advisory checks for non-terminal tools via skills, PII/secret detection, and compliance-grade audit trails. Self-hosted via Docker.

★ 3 · by getaxonflow
#7

Bring Your AI Migration Auditor

Read-only audit of AGENTS.md/CLAUDE.md scope, hooks, MCP config, skills, secret references, and validation notes before Codex edits migrated projects.

★ 1 · by unitedideas
#8

Claude Code Codex Plugin

Security-focused Codex plugin that connects to the local Claude Code CLI through MCP with login, status checks, safe-mode prompts, and no credential storage.

★ 1 · by davidq888
#9

Darkmoon

Start authorized autonomous AI pentest runs, poll status, list campaigns and read findings on your own self-hosted Darkmoon Pro through MCP.

★ 0 · by ASCIT31
#10

BountyGuard

Pre-flight GitHub bounty security scanner and on-chain Proof-of-Escrow MCP verifier that classifies open bounties before AI agents invest compute.

★ n/a · by doomsday-network
#11

Casefile Archived on GitHub

Persistent security case tracking for bug bounties, CTFs, and security audits.

★ 10 · by x4cc3