tls-scan

tls-scan is a command for Claude Code from TLS-Radar/tlsradar-claude-plugin. It costs 15 tokens per session (217 once invoked), scanned A, original, MIT.

A command that runs a free SSL/TLS security scan on a domain without requiring an account.

In plain words
What is it for?
Use it to check who issued a domain’s certificate, when it expires, and whether the scan found problems. It also provides a shareable report link.
Why use it?
It gives you certificate and configuration details without making you inspect them manually or sign up first.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the tlsradar plugin — 1 skill, 6 commands, 1 MCP server shipped together

Good fit Use it to check who issued a domain’s certificate, when it expires, and whether the scan found problems. It also provides a shareable report link.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/tls-radar/tlsradar-claude-plugin/tls-scan
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.

Clone the repo
git clone --depth 1 https://github.com/TLS-Radar/tlsradar-claude-plugin

Made for: Claude Code.

Or install tlsradar, the plugin that ships this one along with the rest of its 1 skill, 6 commands, 1 MCP server.

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 tls-scan

README.md
[![agentmods](https://agentmods.dev/badge/commands/tls-radar/tlsradar-claude-plugin/tls-scan/github.svg)](https://agentmods.dev/commands/tls-radar/tlsradar-claude-plugin/tls-scan)
Your own site
<a href="https://agentmods.dev/commands/tls-radar/tlsradar-claude-plugin/tls-scan"><img src="https://agentmods.dev/badge/commands/tls-radar/tlsradar-claude-plugin/tls-scan/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 tls-scan

Your own site · 80×15
<a href="https://agentmods.dev/commands/tls-radar/tlsradar-claude-plugin/tls-scan"><img src="https://agentmods.dev/badge/commands/tls-radar/tlsradar-claude-plugin/tls-scan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 217 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00015 $0.00217
Opus 5 $0.00008 $0.00109
Sonnet 5 $0.00003 $0.00043
Haiku 4.5 $0.00002 $0.00022

Measured 8d ago against content hash 248f3a8d4f89, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

tls-scan 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 8d 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.

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.

commands/tls-scan.md · 16 lines

What it actually says

Run a free, anonymous SSL/TLS scan against $ARGUMENTS by calling the tlsradar.scan_domain MCP tool.

If ${HOME}/.config/tlsradar/install_id exists, read it and pass its contents as client_id (anonymous funnel attribution; just omit it if the file is absent). If the response includes an install_id and the file didn't exist, write it there so future calls share the same id.

If the user did not pass a domain, ask for one before calling the tool. Do not invent a domain.

After the scan completes, summarize the result in plain text: the issuer, expiration date, and any flagged issues. Include the shareable report URL from the response.

If the response shows the certificate expiring within 30 days, suggest the user run /tls-monitor add <domain> to add it to ongoing monitoring with renewal alerts.

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. 8d ago First seen · 16 lines · 15 tokens per session scan A 248f3a8d4f89

Subscribe to this mod's changes

tls-scan is a command published in the GitHub repository TLS-Radar/tlsradar-claude-plugin (0 stars, last pushed 2mo ago), licensed MIT. It adds 15 tokens to every session and 217 once invoked, about $0.0001 per session on Opus 5. 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.