version-sentinel-marketplace

A Claude Code plugin that checks dependency versions before allowing packages to be added, upgraded, or downgraded. Dependencies are external libraries your project relies on; the check must include current sources.

In plain words
What is it for?
Use it when changing packages managed by npm, pip, Poetry, uv, Cargo, or NuGet, to require a documented version check before the change proceeds.
Why use it?
It prevents dependency changes from being made without first recording a recent, source-backed version check.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add KSEGIT/Version-Sentinel
agentmods
npx agentmods add plugins/ksegit/version-sentinel/marketplace
Clone the repo
git clone --depth 1 https://github.com/KSEGIT/Version-Sentinel

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

version-sentinel-marketplace scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/marketplace.json · 26 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-marketplace.json",
  "name": "version-sentinel-marketplace",
  "version": "0.4.3",
  "description": "Claude Code plugin that hard-blocks dependency additions, bumps, and downgrades until a fresh, source-cited version check is recorded. Supports npm, pip, Poetry/uv, Cargo, and NuGet.",
  "owner": {
    "name": "Daniel Kiska",
    "email": "[email protected]"
  },
  "plugins": [
    {
      "name": "version-sentinel",
      "source": "./",
      "description": "Hard-blocks dependency additions until a version check is recorded.",
      "category": "security",
      "keywords": [
        "dependencies",
        "versions",
        "guardrails",
        "supply-chain-security",
        "hooks"
      ]
    }
  ]
}
Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 26 lines scan A fc020588a959

Subscribe to this mod's changes

version-sentinel-marketplace is a plugin published in the GitHub repository KSEGIT/Version-Sentinel (3 stars, last pushed 2d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.