chainloop: Skill for Claude Code

.claude/skills/vulnerability-remediation/SKILL.md

vulnerability-remediation is a skill for Claude Code from chainloop-dev/chainloop. It costs 48 tokens per session (2,378 once invoked), scanned A, original, Apache-2.0.

A project-specific workflow for finding and fixing reported security vulnerabilities in Chainloop, mainly in Dockerfiles or Go dependency files.

In plain words
What is it for?
Reviewing open Chainloop vulnerability findings and applying approved remediation changes.
Why use it?
It turns vulnerability findings and CVEs into concrete source-file updates while checking the project's compliance evidence.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions subagents.

This is chainloop-dev/chainloop's own configuration. It tells Claude Code how to work on chainloop itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything chainloop configures →

Reuse

Borrowing it

Nothing to install: this file belongs to chainloop-dev/chainloop. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/chainloop-dev/chainloop/main/.claude/skills/vulnerability-remediation/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/chainloop-dev/chainloop

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for vulnerability-remediation

README.md
[![agentmods](https://agentmods.dev/badge/skills/chainloop-dev/chainloop/vulnerability-remediation/github.svg)](https://agentmods.dev/skills/chainloop-dev/chainloop/vulnerability-remediation)
Your own site
<a href="https://agentmods.dev/skills/chainloop-dev/chainloop/vulnerability-remediation"><img src="https://agentmods.dev/badge/skills/chainloop-dev/chainloop/vulnerability-remediation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for vulnerability-remediation

Your own site · 80×15
<a href="https://agentmods.dev/skills/chainloop-dev/chainloop/vulnerability-remediation"><img src="https://agentmods.dev/badge/skills/chainloop-dev/chainloop/vulnerability-remediation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,378 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 5 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Supply Chain · line 86
    Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.
    Fix: Avoid downloading and executing remote scripts. Use trusted packages from PyPI/npm. If remote fetch is required, verify checksums and use HTTPS.
  • medium MCP Rug Pull · line 97
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 99
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 104
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • low Tool Misuse · line 99
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00048 $0.02378
Opus 5.5 $0.00019 $0.00951
Sonnet 5.5 $0.00010 $0.00476
Haiku 4.5 $0.00005 $0.00238

Measured 1mo ago against content hash 231451a9b233, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vulnerability-remediation scanned grade A with 1 finding 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 1mo ago.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s "https://registry.hub.docker.com/v2/repositories/arigaio/atlas/tags?page_size=20&ordering=last_updated" \
.claude/skills/vulnerability-remediation/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vulnerability Remediation for chainloop

This skill reviews open vulnerability policy violations recorded in Chainloop for the chainloop project and applies fixes to the affected source files.

Step 1: Find the Latest Project Version

Use list_products_with_versions (no parameters needed — uses the current chainloop org) and locate the Chainloop Community Edition product. Find the chainloop project version entry and note its projectVersionId (UUID).

Step 2: Gather Compliance Results and Evidence in Parallel

Once the projectVersionId is known, make both of these calls at the same time:

Call A — get_frameworks_compliance:

  • project_version_id: the UUID from Step 1
  • framework_ids: ["0ceef195-6900-4166-8407-77eb84954ed3"] (chainloop-best-practices)

Call B — list_pieces_of_evidence:

  • project_name: chainloop
  • project_version_name: the version name from Step 1 (e.g. v1.77.0)
  • latest: true

Parsing the compliance result (Call A)

The response will be large — parse it programmatically using a Bash subagent:

import json

with open('<tool-result-file>') as f:
    raw = json.load(f)
data = json.loads(raw[0]['text'])

for req in data:
    if 'vulnerabilit' in req.get('name', '').lower():
        status = req.get('status', '')
        failed = [e for e in req.get('policyEvaluations', [])
                  if e.get('status') not in ('PASSED', 'SKIPPED')]
        print(f"Requirement: {req['name']} — Status: {status}")
        for e in failed:
            print(f"  FAILED: policy={e['name']} material={e.get('materialName','-')} status={e.get('status','-')}")

This gives you the list of failing material names (e.g. control-plane-migrations-report).

Step 3: Download the SARIF for Each Failing Material

From the list_pieces_of_evidence result (Call B above), find the item whose name matches the failing material name and whose kind is SARIF. Use its digest field directly — no need to decode attestations.

Read the full file on GitHub · 223 lines

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. 1mo ago First seen · 223 lines · 48 tokens per session scan A 231451a9b233

Subscribe to this mod's changes

vulnerability-remediation is a skill published in the GitHub repository chainloop-dev/chainloop (606 stars, last pushed 4d ago), licensed Apache-2.0. It adds 48 tokens to every session and 2,378 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.

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