Supply Chain Advisory

What it does

When your agent uses it

• Handling incidents
• Releasing a plugin

Example prompts

• “Use the supply-chain-advisory skill to audit dependency supply chains for bad versions, lockfile drift, and artifact integrity”
• “/supply-chain-advisory”

Requirements

• Python 3

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

1. 1SessionStart hook: warns per-session when compromised
2. 2make supply-chain-scan: CI/local scanning target
3. 3This skill: manual audit guidance

What it can do on your machine

Read from SKILL.md and the folder at commit 9f3eb00. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • make
  • uv

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Supply Chain Advisory loads about 1.1k tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 372 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~44

When it runs · the whole SKILL.md, loaded when a task matches

~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from athola/claude-night-market at commit 9f3eb00, republished under its MIT licence (© athola). 372 words, ~1,120 tokens.

name

supply-chain-advisory

description

Audits dependency supply chains for bad versions, lockfile drift, and artifact integrity. Use when adding deps, handling incidents, or releasing a plugin.

alwaysApply

false

category

infrastructure

tags

security, supply-chain, dependencies, vulnerability, pypi

dependencies

error-patterns

provides.infrastructure

supply-chain-scanning, dependency-auditing, incident-response

provides.patterns

known-bad-detection, lockfile-audit, artifact-scanning

usage_patterns

dependency-security-check, incident-response, supply-chain-audit

complexity

intermediate

model_hint

standard

estimated_tokens

500

{
  "package_name": [{
    "versions": ["x.y.z"],
    "date": "YYYY-MM-DD",
    "description": "What the attack did",
    "indicators": ["files or patterns to search for"],
    "source": "advisory URL",
    "severity": "critical|high|medium"
  }]
}

# Scan uv.lock files for a specific compromised version
grep -r "package_name.*version" --include="uv.lock" /path/to/projects

# Search for malicious artifacts
find /path/to/projects -name "suspicious_file.pth" 2>/dev/null

# Check installed versions in virtualenvs
find /path/to/projects -path "*/.venv/lib/*/PACKAGE*/METADATA" \
  -exec grep "^Version:" {} +

© athola, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files in plugins/leyline/skills/supply-chain-advisory of athola/claude-night-market.

• SKILL.md
• known-bad-versions.json
• modules/incident-response.md
• modules/scanning-patterns.md

Open the folder on GitHubat commit 9f3eb00