ClaudSkills / Engineering / engineering-misc

Cpp Openssl

Q: What is a Claude Code skill and how does the Cpp Openssl 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. Cpp Openssl is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: engineering-misc · Last updated: 2026-06-28

type:review

Use when: designing, implementing, reviewing, or debugging C/C++ that calls the OpenSSL (or LibreSSL/BoringSSL) library API directly: SSL_CTX/SSL setup, TLS handshakes, certificate and key loading, peer and hostname verification, ALPN/SNI, the EVP cipher/digest/PKEY interfaces, AEAD, key derivation, RAND, the error queue, BIO chains, object lifetime and refcounts, and 1.1.1-vs-3.0 provider portability. Not the openssl(1) command-line tool.

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Cpp Openssl includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section). At roughly 3,189 words the SKILL.md is on the longer end of the catalog distribution.

Original author: sjinks
Indexed lastmod: 2026-06-28
Catalog position: Engineering · engineering-misc
Indexed related skills: 10

How Cpp Openssl fits the catalog

Cpp Openssl sits in the Engineering category under the engineering-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Use this skill for C/C++ work that calls the OpenSSL library API (or an OpenSSL-compatible library such as LibreSSL or BoringSSL) directly: TLS server/client setup, handshakes, certificate and key handling, peer verification, the EVP cryptographic interfaces, random generation, the error queue, BIO chains, and the object lifecycle/reference-count rules that make OpenSSL safe or unsafe to use. This is about the C API linked into an application, not the openssl(1) command-line tool.

What this skill does

Cpp Openssl is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/cpp-openssl/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when: designing, implementing, reviewing, or debugging C/C++ that calls the OpenSSL (or LibreSSL/BoringSSL) library API directly: SSL_CTX/SSL setup, TLS handshakes, certificate and key loading, peer and hostname verification, ALPN/SNI, the EVP cipher/digest/PKEY interfaces, AEAD, key derivation, RAND, the error queue, BIO chains, object lifetime and refcounts, and 1.1.

Who uses this skill

The Cpp Openssl Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ 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/cpp-openssl
curl -L https://claudskills.com/skills/cpp-openssl/SKILL.md \
  -o ~/.claude/skills/cpp-openssl/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/cpp-openssl/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/cpp-openssl/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cpp-openssl\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 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.

See pricing → Download desktop app

Frequently asked questions

How do I install the Cpp Openssl Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/cpp-openssl/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Cpp Openssl skill do?

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 Cpp Openssl skill?

Use Cpp Openssl when your Claude Code task falls under the Engineering category — specifically in the engineering misc 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 Cpp Openssl" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Cpp Openssl 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. Cpp Openssl is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/sjinks/ai-skills/blob/HEAD/skills/cpp-openssl/SKILL.md
Author: sjinks

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

sjinks. (2026). Cpp Openssl [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/cpp-openssl/

BibTeX

@misc{cpp-openssl-2026,
  author    = {sjinks},
  title     = {Cpp Openssl [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/cpp-openssl/}
}

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

[![ClaudSkills](https://claudskills.com/badge/cpp-openssl.svg)](https://claudskills.com/skills/cpp-openssl/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-02 — 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):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/cpp-openssl/#security)

More Engineering skills

Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills

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