Agent skill

Performing Ssl Certificate Lifecycle Management

by mukul975 in mukul975/Anthropic-Cybersecurity-Skills

Automates the full SSL/TLS certificate lifecycle, including generating Certificate Signing Requests, issuing, deploying, monitoring, renewing, and revoking X.509 certificates, using Python and ACME…

Apache-2.0Auto-check passedDevOps & Cloud

Install Performing Ssl Certificate Lifecycle Management

skills CLI
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-ssl-certificate-lifecycle-management -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills performing-ssl-certificate-lifecycle-management --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/performing-ssl-certificate-lifecycle-management .claude/skills/performing-ssl-certificate-lifecycle-management && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
performing-ssl-certificate-lifecycle-management
GitHub stars
34k
Token cost
~867 tokens
SKILL.md length
317 words
Files
8 (incl. scripts, references, assets)
Skills in repo
644
Repo updated
First seen
Licence
Apache-2.0

At a glance

Automates the full SSL/TLS certificate lifecycle, including generating Certificate Signing Requests, issuing, deploying, monitoring, renewing, and revoking X.509 certificates, using Python and ACME…

  • Works in 6 steps: Request: Generate key pair and CSR → Issuance: CA validates and issues… → Deployment: Install certificate on servers → …
  • Managing certificate issuance
  • SKILL.md covers Overview, When to Use, Prerequisites and Objectives, plus 3 more sections
  • Runs Python scripts from its folder

What it does

Performing Ssl Certificate Lifecycle Management is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Automates the full SSL/TLS certificate lifecycle, including generating Certificate Signing Requests, issuing, deploying, monitoring, renewing, and revoking X.509 certificates, using Python and ACME protocol tools. Use when managing certificate issuance or renewal, preventing certificate-expiry outages, or building automated PKI/ACME workflows.

Its SKILL.md is about 870 tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including scripts, reference files and assets (for example `assets/template.md`, `references/api-reference.md` and `references/standards.md`).

It sits in DevOps & Cloud, covering Cryptography, Cloud networking and Incident response. It works with Python. The repository describes itself as: 817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io…. The licence is Apache-2.0.

When your agent uses it

  • Managing certificate issuance
  • Preventing certificate-expiry outages
  • Building automated PKI/ACME workflows

Example prompts

  • “Use the performing-ssl-certificate-lifecycle-management skill to automate the full SSL/TLS certificate lifecycle, including generating Certificate…”
  • “/performing-ssl-certificate-lifecycle-management”

Requirements

  • Python 3

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Request: Generate key pair and CSR
  2. Issuance: CA validates and issues certificate
  3. Deployment: Install certificate on servers
  4. Monitoring: Track expiration and health
  5. Renewal: Request new certificate before expiry
  6. Revocation: Invalidate compromised certificates

What it can do on your machine

Read from SKILL.md and the folder at commit 54a7988. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 2 files in scripts/ (Python), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Performing Ssl Certificate Lifecycle Management loads about 867 tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 98 tokens; SKILL.md has 317 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~98
When it runs · the whole SKILL.md, loaded when a task matches
~867
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from mukul975/Anthropic-Cybersecurity-Skills at commit 54a7988, republished under its Apache-2.0 licence (© mukul975). 317 words, ~867 tokens.

Download SKILL.mdSave it as .claude/skills/performing-ssl-certificate-lifecycle-management/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.
name
performing-ssl-certificate-lifecycle-management
description
Automates the full SSL/TLS certificate lifecycle, including generating Certificate Signing Requests, issuing, deploying, monitoring, renewing, and revoking X.509 certificates, using Python and ACME protocol tools. Use when managing certificate issuance or renewal, preventing certificate-expiry outages, or building automated PKI/ACME workflows.
domain
cybersecurity
subdomain
cryptography
tags
cryptography, ssl, certificates, pki, tls, key-management
version
1.0
author
mahipal
license
Apache-2.0
nist_csf
PR.DS-01, PR.DS-02, PR.DS-10
mitre_attack
T1600, T1573, T1553, T1040

Performing SSL Certificate Lifecycle Management

Overview

SSL/TLS certificate lifecycle management encompasses the full process of requesting, issuing, deploying, monitoring, renewing, and revoking X.509 certificates. Poor certificate management is a leading cause of outages and security incidents. This skill covers automating the entire certificate lifecycle using Python and ACME protocol tools.

When to Use

  • When conducting security assessments that involve performing ssl certificate lifecycle management
  • When following incident response procedures for related security events
  • When performing scheduled security testing or auditing activities
  • When validating security controls through hands-on testing

Prerequisites

  • Familiarity with cryptography concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Objectives

  • Generate Certificate Signing Requests (CSRs) programmatically
  • Parse and validate X.509 certificates
  • Monitor certificate expiration across infrastructure
  • Automate renewal using ACME protocol (Let's Encrypt)
  • Implement certificate revocation checking (CRL and OCSP)
  • Track certificate inventory across multiple domains

Key Concepts

Certificate Lifecycle Stages
  1. Request: Generate key pair and CSR
  2. Issuance: CA validates and issues certificate
  3. Deployment: Install certificate on servers
  4. Monitoring: Track expiration and health
  5. Renewal: Request new certificate before expiry
  6. Revocation: Invalidate compromised certificates
Certificate Types
TypeValidationUse Case
DV (Domain Validation)Domain ownershipWebsites, APIs
OV (Organization Validation)Domain + org identityBusiness sites
EV (Extended Validation)Full legal verificationE-commerce, banking
Wildcard*.domain.comMulti-subdomain
SAN/UCCMultiple domainsMulti-domain hosting

Security Considerations

  • Set up automated monitoring for all certificates
  • Use ECDSA (P-256) certificates for better performance over RSA
  • Enable OCSP stapling on all servers
  • Implement Certificate Transparency log monitoring
  • Maintain inventory of all certificates and their locations
  • Plan for CA compromise scenarios (key pinning, backup CAs)

Validation Criteria

  • CSR generation produces valid PKCS#10 request
  • Certificate parsing extracts all relevant fields
  • Expiration monitoring detects certificates within threshold
  • Certificate chain validation verifies trust path
  • OCSP checking detects revoked certificates
  • Certificate inventory tracks all deployed certificates

© mukul975, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 7 other files (scripts, references, assets) in skills/performing-ssl-certificate-lifecycle-management of mukul975/Anthropic-Cybersecurity-Skills.

  • SKILL.md
  • LICENSE
  • assets/template.md
  • references/api-reference.md
  • references/standards.md
  • references/workflows.md
  • scripts/agent.py
  • scripts/process.py

Open the folder on GitHubat commit 54a7988

Compare with similar skills

Performing Ssl Certificate Lifecycle Management next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Performing Ssl Certificate Lifecycle Management compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Performing Ssl Certificate Lifecycle Management this skillmukul975/Anthropic-Cybersecurity-Skills34k—~867Automated safety check: PassApache-2.0
Devops AgentLeoYeAI/openclaw-master-skills2.2k—~5.3kAutomated safety check: NotesMIT
Azure Keyvault Pymicrosoft/skills3.1k—~2.4kAutomated safety check: PassMIT
Terraform Azurerm Set Diff Analyzergithub/awesome-copilot40k1 repos~547Automated safety check: PassMIT
ACI Policy Change Deploymentautomateyournetwork/netclaw676—~4.2kAutomated safety check: PassApache-2.0
Security Setupluongnv89/skills131—~4.5kAutomated safety check: PassMIT

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Works with

Questions about Performing Ssl Certificate Lifecycle Management

What does Performing Ssl Certificate Lifecycle Management do?

Automates the full SSL/TLS certificate lifecycle, including generating Certificate Signing Requests, issuing, deploying, monitoring, renewing, and revoking X.509 certificates, using Python and ACME…. Performing Ssl Certificate Lifecycle Management is an agent skill from mukul975/Anthropic-Cybersecurity-Skills.509 certificates, using Python and ACME protocol tools.

When should I use Performing Ssl Certificate Lifecycle Management?

Performing Ssl Certificate Lifecycle Management fits situations like: managing certificate issuance; preventing certificate-expiry outages; building automated PKI/ACME workflows.

How do I install Performing Ssl Certificate Lifecycle Management in Claude Code?

Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-ssl-certificate-lifecycle-management -a claude-code`. Or copy the skill folder (skills/performing-ssl-certificate-lifecycle-management in mukul975/Anthropic-Cybersecurity-Skills) into .claude/skills/performing-ssl-certificate-lifecycle-management in your project. Claude Code loads it when a task matches its description.

How do I install Performing Ssl Certificate Lifecycle Management in Codex?

Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-ssl-certificate-lifecycle-management -a codex`. Or copy the skill folder (skills/performing-ssl-certificate-lifecycle-management in mukul975/Anthropic-Cybersecurity-Skills) into .agents/skills/performing-ssl-certificate-lifecycle-management in your project. Codex loads it when a task matches its description.

Can I use Performing Ssl Certificate Lifecycle Management in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-ssl-certificate-lifecycle-management -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/performing-ssl-certificate-lifecycle-management, .gemini/skills/performing-ssl-certificate-lifecycle-management, .github/skills/performing-ssl-certificate-lifecycle-management and .opencode/skills/performing-ssl-certificate-lifecycle-management in your project.

What does Performing Ssl Certificate Lifecycle Management need to run?

Going by SKILL.md and its folder, Performing Ssl Certificate Lifecycle Management needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Performing Ssl Certificate Lifecycle Management access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Performing Ssl Certificate Lifecycle Management safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Performing Ssl Certificate Lifecycle Management use?

Performing Ssl Certificate Lifecycle Management is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Performing Ssl Certificate Lifecycle Management use?

About 867 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.4k tokens, read only when the agent opens those files.

What are the alternatives to Performing Ssl Certificate Lifecycle Management?

Skills that share tags, products or a category with Performing Ssl Certificate Lifecycle Management: Devops Agent (LeoYeAI/openclaw-master-skills, 2.2k stars), Azure Keyvault Py (microsoft/skills, 3.1k stars), Terraform Azurerm Set Diff Analyzer (github/awesome-copilot, 40k stars) and ACI Policy Change Deployment (automateyournetwork/netclaw, 676 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Performing Ssl Certificate Lifecycle Management?

mukul975 (a GitHub user) maintains it in mukul975/Anthropic-Cybersecurity-Skills, which has 34,116 GitHub stars. The repository holds 644 skills in this directory. The repository was last updated on August 31, 2026.

Source: mukul975/Anthropic-Cybersecurity-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.