offensive-supply-chain skillF
offensive-supply-chain is agent-read markdown (skill) from miosa-osa/osa: Comprehensive offensive methodology for software supply chain attacks covering the full kill chain from reconnaissance through exploitation. Addresses dependency confusion across npm, PyPI, and NuGet ecosystems where internal registry override allows an attacker to inject malicious packages that shadow private dependencies. Covers typosquatting techniques for popular packages, compromised package injection via maintainer account takeover or social engineering, and build system attacks through Ma.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add miosa-osa/osa/offensive-supply-chain@git:20260913.e13b6b8mdr add miosa-osa/osa/offensive-supply-chain@sha256:9eb53a643d9076e4Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_lnjp7dru2sf2zmm3)
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Versions
Audit of the latest version
- FAIL, critical: No link to an exfiltration or paste host (matched: https://your-canary.oastify.com)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (19246 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
miosa-osa/osa · 57 stars · license NOASSERTION · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lnjp7dru2sf2zmm3 GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/offensive-supply-chain GET https://markdownregistry.com/api/v1/blob/9eb53a643d9076e43fa59f4ab66665426d67f6a78c33d5fcb9293392dc543aac
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.