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SSL Certificate Checker
by
LeonardoDpanda
· GitHub ↗
· v1.0.0
· MIT-0
440
Downloads
0
Stars
2
Active Installs
1
Versions
Install in OpenClaw
/install ssl-certificate-checker
Description
Check SSL/TLS certificate details including expiration date, issuer, validity, cipher suites, and security warnings for any domain. Use when verifying HTTPS...
Usage Guidance
This skill is basically documentation with example openssl commands — it's coherent with its purpose. Before installing/using it, ensure the agent environment has a trustworthy openssl binary available (the SKILL.md assumes openssl but the metadata doesn't list it). Be aware the commands will open outbound TLS connections to whatever domain you supply, so avoid running the checks against sensitive internal hosts unless you trust the environment and network. If you need the agent to run these commands autonomously, confirm you trust the agent's ability to execute shell commands and that it will not be given internal targets or credentials inadvertently.
Capability Analysis
Type: OpenClaw Skill
Name: ssl-certificate-checker
Version: 1.0.0
The ssl-certificate-checker skill provides standard, legitimate instructions for using the openssl utility to inspect SSL/TLS certificate details. The commands in SKILL.md are limited to diagnostic purposes such as checking expiration dates and issuers, and there is no evidence of malicious intent, data exfiltration, or prompt injection.
Capability Assessment
Purpose & Capability
The SKILL.md describes certificate inspection and gives concrete openssl commands that match the stated purpose. However, the skill metadata declares no required binaries even though the instructions explicitly require the openssl binary (inconsistent declaration).
Instruction Scope
Instructions are narrowly scoped to reading certificate data via openssl and piping output; they do perform network connections to the target domain (expected for this task) and reference /dev/null only as part of the command pipeline.
Install Mechanism
No install spec and no code files — lowest-risk instruction-only skill. Nothing is downloaded or written to disk by the skill itself.
Credentials
The skill requests no environment variables, secrets, or config paths. That is proportionate for a read-only certificate checker.
Persistence & Privilege
always is false and model invocation is allowed (platform default). The skill does not request persistent privileges or modify other skills/configs.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install ssl-certificate-checker - After installation, invoke the skill by name or use
/ssl-certificate-checker - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial release of SSL Certificate Checker
- Enables checking SSL/TLS certificate details such as expiration date, issuer, and validity for any domain.
- Provides insights on cipher suites and security warnings.
- Useful for monitoring certificate expiry, verifying HTTPS security configuration, and troubleshooting SSL issues.
- Includes usage guidance, limitations, and example commands for checking certificates via OpenSSL.
- Not intended for penetration testing, internal certificates, or certificate installation tasks.
Metadata
Frequently Asked Questions
What is SSL Certificate Checker?
Check SSL/TLS certificate details including expiration date, issuer, validity, cipher suites, and security warnings for any domain. Use when verifying HTTPS... It is an AI Agent Skill for Claude Code / OpenClaw, with 440 downloads so far.
How do I install SSL Certificate Checker?
Run "/install ssl-certificate-checker" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is SSL Certificate Checker free?
Yes, SSL Certificate Checker is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does SSL Certificate Checker support?
SSL Certificate Checker is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created SSL Certificate Checker?
It is built and maintained by LeonardoDpanda (@leonardodpanda); the current version is v1.0.0.
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