supply-chain-hardening SKILL.md skillA
supply-chain-hardening from jamditis/claude-skills-journalism is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jamditis/claude-skills-journalism/supply-chain-hardening@git:20261024.21f0bb2Pins git:20261024.21f0bb2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jamditis/claude-skills-journalism
- Path
security-toolkit/skills/supply-chain-hardening/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261024.21f0bb2, committed Oct 24, 2026
- First version recorded
- May 12, 2026
- Size
- 8,050 bytes
- Repository stars
- 450
- License
- MIT
Install-time cooldowns for npm/bun plus a sandboxed pre-install scan for bypasses. Use for supply-chain attacks or npm security.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Supply-chain hardening Defends a journalism toolchain against the dominant npm/bun supply-chain attack pattern: a maintainer account or CI pipeline is compromised, a malicious version ships, and machines install it before anyone notices. Recent example: the **Mini Shai-Hulud TanStack attack (2026-05-11)** compromised 84 versions across 42 `@tanstack/*` packages and exfiltrated AWS / GCP / Vault / GitHub / SSH credentials via a postinstall script. The defense is **layered** and intentionally simple: 1. **Install-time cooldown**, only install package versions older than N days (default 7). This is the primary defense. By the time the cooldown expires, the security community has almost always flagged a compromised version and the registry has yanked it. 2. **Sandboxed pre-install scan**, when the cooldown has to be bypassed (CVE patch, fresh dep, urgent install), run the candidate tarball through a static-analysis scan that looks for the diagnostic signatures of supply-chain malware. The scan runs inside `bwrap`/`firejail`/`unshare` so a malicious package can't escape the inspection. …
Read the whole file at its exact version.
How to install
mdr add jamditis/claude-skills-journalism/supply-chain-hardening@sha256:9dfb2457168a498dThe line at the top of this page pins the label git:20261024.21f0bb2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_uhwvkw2txdegftfp)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 12, 2026 and Oct 24, 2026, about one every 83 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261024.21f0bb2 latest | 2026-10-24 | 21f0bb2 | 8,050 B | A | view · diff |
| git:20260818.3e0e3a8 | 2026-08-18 | 3e0e3a8 | 8,068 B | A | view · diff |
| git:20260512.0e1d792 | 2026-05-12 | 0e1d792 | 8,396 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8050 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- 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
jamditis/claude-skills-journalism · 450 stars · license MIT · pushed 2026-11-04 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_uhwvkw2txdegftfp GET https://markdownregistry.com/api/v1/resolve?ref=jamditis/claude-skills-journalism/supply-chain-hardening GET https://markdownregistry.com/api/v1/blob/9dfb2457168a498d28de97e42723ec3f5b4cb7a4e018d1ac9ec217d879530025
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.