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cfn-nag

reference corpus · status live · domain SEC (Security and vulnerabilities) · lane A · refresh pinned · tags GLOBAL · CLOUDFORMATION · AWS · LINTING · SECURITY-RULES · IAC

What an agent uses it for

an agent reviewing CloudFormation templates queries this for cfn_nag's Ruby rule definitions that flag insecure AWS resource configuration.

Use it
curl -fsSLO https://raw.githubusercontent.com/xerj-org/xerj/corpus-hub/tools/xerj-code/hub/cfn-nag.json
xerj corpus add --from ./cfn-nag.json
xerj corpus index cfn-nag then xerj code cfn-nag "your question"

Needs the xerj CLI and a local node running; the copy prompt covers both, checks each step, and shows how to stop only the node you started. No shell: the MCP tool xerj_code_search with corpus: "cfn-nag", once the corpus is indexed on the node.

Sources and pins

sourcepinlicencesizereview note
cfn_nag 8b5f03da7420MIT 1.3 MB / 1,192 files licence host-verified (ok-spdx): MIT

1.3 MB across 1,192 files. Added 2026-10-13.

Rights

MIT. Redistribution permitted with attribution per the licence review. The review block records a human opening each licence file at the pin. Detector output is a hint, never the verdict.

Retrieval spot-check (G7)

Not yet spot-checked. Queries are pre-registered in the registry before grading.