GitGuardian vs Gadriel AI Security Harness
GitGuardian is a plugin bundle for AI coding tools published by GitGuardian. Marketplaces we read that list it: 1 (Community GitHub marketplaces). Gadriel AI Security Harness is an MCP server published by Gadriel-ai. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-20. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Gadriel AI Security Harness | |
|---|---|---|
| Community marketplace gitguardian/agent-skills | Listed Version: 0.6.2 Forks (GitHub): 2 Stars (GitHub): 10 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.7.0 Downloads/month (npm): 853 Downloads/week (npm): 72 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | GitGuardian | Gadriel AI Security Harness |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 10 (better) | 0 (worse) |
| Forks (GitHub) (differs) | 2 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.gitguardian.com/mcp) | On your machine (gadriel) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 0 |
| Parts of the bundle (differs) | 7 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/gitguardian/agent-skills | github.com/gadriel-ai/gadriel-copilot-plugin |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-19 | 2026-10-11 |
| Endpoint at the last check (differs) | not checked yet | no remote endpoint we check |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
GitGuardian
The official GitGuardian plugin for AI coding agents. Detects 700+ hardcoded secret types across files, git history, Docker images, and PyPI packages via the ggshield CLI; plants AWS honeytoken tripwires for the leaks scanning can't catch; and surfaces live incidents in your editor via the bundled GitGuardian Developer MCP server.
Gadriel AI Security Harness
AI Security Harness: SAST, secrets, deps, containers, config & OWASP LLM. Scans locally.
How to run each
GitGuardian As a Claude Code plugin
/plugin marketplace add gitguardian/agent-skills
/plugin install gitguardian@gitguardian-agent-skillsGadriel AI Security Harness As a local MCP server: npm package
claude mcp add --transport stdio gadriel -- npx -y gadriel code mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of GitGuardian publish no settings it asks for, so we do not compare settings.
What it can do: GitGuardian · What it can do: Gadriel AI Security Harness · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.