Verify Sign
Add an Artifact Verification (SscaArtifactVerification) step to an existing Harness pipeline to verify Cosign signatures on container or local-stage artifacts. Supports CI, Security, and CD Deploy (containerized step group). Supports Third-Party registries (Docker, ECR, GCR, GAR, ACR), Harness Artifact Registry (HAR), and Harness Local Stage artifacts. Only works with existing pipelines. Use when asked to verify signed artifacts, verify artifact signature, verify-sign, validate Cosign signature, or configure SscaArtifactVerification. Trigger phrases: verify sign, verify artifact, artifact verification, verify signature, verify-sign, SscaArtifactVerification, verify signed image, verify Cosign, HAR verification.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
Add an Artifact Verification (SscaArtifactVerification) step to an existing Harness pipeline. The step verifies Cosign signatures on artifacts — typically immediately after SscaArtifactSigning.
What this skill does
Verify Sign is a community-contributed Claude Code skill in the crypto-keymgmt sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/verify-sign/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when asked to verify signed artifacts, verify artifact signature, verify-sign, validate Cosign signature, or configure SscaArtifactVerification. Trigger phrases: verify sign, verify artifact, artifact verification, verify signature, verify-sign, SscaArtifactVerification, verify signed image, verify Cosign, HAR verification.
Who uses this skill
The Verify Sign Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 158,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/verify-sign
curl -L https://claudskills.com/skills/verify-sign/SKILL.md \
-o ~/.claude/skills/verify-sign/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/verify-sign/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/verify-sign/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\verify-sign\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Verify Sign Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/verify-sign/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Verify Sign skill do?
Add an Artifact Verification (SscaArtifactVerification) step to an existing Harness pipeline to verify Cosign signatures on container or local-stage artifacts. Supports CI, Security, and CD Deploy (containerized step group). Supports Third-Party registries (Docker, ECR, GCR, GAR, ACR), Harness Artifact Registry (HAR), and Harness Local Stage artifacts. Only works with existing pipelines. Use when asked to verify signed artifacts, verify artifact signature, verify-sign, validate Cosign signature, or configure SscaArtifactVerification. Trigger phrases: verify sign, verify artifact, artifact verification, verify signature, verify-sign, SscaArtifactVerification, verify signed image, verify Cosign, HAR verification.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Verify Sign skill?
Use Verify Sign when your Claude Code task falls under the Security category — specifically in the crypto keymgmt area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Verify Sign" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Verify Sign skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Verify Sign is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
harness. (2026). Verify Sign [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/verify-sign/
BibTeX
@misc{verify-sign-2026,
author = {harness},
title = {Verify Sign [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/verify-sign/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/verify-sign/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/verify-sign.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/verify-sign.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Verify Sign"></iframe>
Security scan
Grade A · scanned 2026-07-23 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/verify-sign/#security)
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