Phy Cron Explainer
LeoYeAI/openclaw-master-skills
Cron expression explainer, validator, and converter. An agent skill from LeoYeAI/openclaw-master-skills.
Agent skill
Implementing Container Network Policies With Calico
Uses Calico's own policy CRDs beyond the upstream Kubernetes API - GlobalNetworkPolicy, HostEndpoint, NetworkSet, policy tiers, and DNS-based egress rules - applied and audited with calicoctl.
Install Implementing Container Network Policies With Calico
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-container-network-policies-with-calico --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/implementing-container-network-policies-with-calico .claude/skills/implementing-container-network-policies-with-calico && rm -rf skills-srcUse ~/.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/
Install the "implementing-container-network-policies-with-calico" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calico into .claude/skills/implementing-container-network-policies-with-calico/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implementing-container-network-policies-with-calico", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calicoType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-container-network-policies-with-calico --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/implementing-container-network-policies-with-calico .agents/skills/implementing-container-network-policies-with-calico && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "implementing-container-network-policies-with-calico" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calico into .agents/skills/implementing-container-network-policies-with-calico/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implementing-container-network-policies-with-calico", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-container-network-policies-with-calico --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/implementing-container-network-policies-with-calico .cursor/skills/implementing-container-network-policies-with-calico && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "implementing-container-network-policies-with-calico" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calico into .cursor/skills/implementing-container-network-policies-with-calico/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implementing-container-network-policies-with-calico", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/implementing-container-network-policies-with-calico--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-container-network-policies-with-calico --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/implementing-container-network-policies-with-calico .gemini/skills/implementing-container-network-policies-with-calico && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "implementing-container-network-policies-with-calico" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calico into .gemini/skills/implementing-container-network-policies-with-calico/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implementing-container-network-policies-with-calico", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-container-network-policies-with-calicoInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/implementing-container-network-policies-with-calico .github/skills/implementing-container-network-policies-with-calico && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "implementing-container-network-policies-with-calico" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calico into .github/skills/implementing-container-network-policies-with-calico/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implementing-container-network-policies-with-calico", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills implementing-container-network-policies-with-calico --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/implementing-container-network-policies-with-calico .opencode/skills/implementing-container-network-policies-with-calico && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "implementing-container-network-policies-with-calico" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/implementing-container-network-policies-with-calico into .opencode/skills/implementing-container-network-policies-with-calico/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "implementing-container-network-policies-with-calico", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
implementing-container-network-policies-with-calico- GitHub stars
- 34k
- Token cost
- ~680 tokens
- SKILL.md length
- 205 words
- Files
- 4 (incl. scripts, references)
- Skills in repo
- 644
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Uses Calico's own policy CRDs beyond the upstream Kubernetes API - GlobalNetworkPolicy, HostEndpoint, NetworkSet, policy tiers, and DNS-based egress rules - applied and audited with calicoctl.
- Works in 4 steps: Audit Existing Network Policies → Implement Default-Deny Policies → Create Workload-Specific Allow Rules → …
- A policy must span namespaces
- SKILL.md covers Overview, When to Use, Prerequisites and Steps, plus 1 more section
- Runs Python scripts from its folder
What it does
Implementing Container Network Policies With Calico is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Uses Calico's own policy CRDs beyond the upstream Kubernetes API - GlobalNetworkPolicy, HostEndpoint, NetworkSet, policy tiers, and DNS-based egress rules - applied and audited with calicoctl. Use when a policy must span namespaces or protect the host itself, when egress has to be expressed by domain name, or when ordering policies into tiers. Keywords: calicoctl, GlobalNetworkPolicy, HostEndpoint, NetworkSet, tier, DNS egress, order. Do not use for portable upstream NetworkPolicy - use…
Its SKILL.md is about 680 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts and reference files (for example `references/api-reference.md` and `scripts/agent.py`).
It sits in DevOps & Cloud, covering Container orchestration and Plain language and style rules. It works with Kubernetes. 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
- A policy must span namespaces
- Protect the host itself
- Egress has to be expressed by domain name
- Ordering policies into tiers
Example prompts
- “Use the implementing-container-network-policies-with-calico skill to use Calico's own policy CRDs beyond the upstream Kubernetes API -…”
- “/implementing-container-network-policies-with-calico”
Requirements
- Python 3
Workflow steps
4 steps, taken from the step headings in SKILL.md.
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 1 file 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
Implementing Container Network Policies With Calico loads about 680 tokens when it runs, and up to ~1.2k if it reads all its reference files. Until then it costs about 176 tokens; SKILL.md has 205 words of instructions outside code blocks.
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). 205 words, ~680 tokens.
Download SKILL.mdSave it as
.claude/skills/implementing-container-network-policies-with-calico/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- implementing-container-network-policies-with-calico
- description
- Uses Calico's own policy CRDs beyond the upstream Kubernetes API - GlobalNetworkPolicy, HostEndpoint, NetworkSet, policy tiers, and DNS-based egress rules - applied and audited with calicoctl. Use when a policy must span namespaces or protect the host itself, when egress has to be expressed by domain name, or when ordering policies into tiers. Keywords: calicoctl, GlobalNetworkPolicy, HostEndpoint, NetworkSet, tier, DNS egress, order. Do not use for portable upstream NetworkPolicy - use implementing-network-policies-for-kubernetes; for installing Calico and writing standard policy with it use implementing-kubernetes-network-policy-with-calico.
- domain
- cybersecurity
- subdomain
- container-security
- tags
- container-security, kubernetes, calico, network-policy, microsegmentation, cni
- version
- 1.0
- author
- mahipal
- license
- Apache-2.0
- nist_csf
- PR.PS-01, PR.IR-01, ID.AM-08, DE.CM-01
- mitre_attack
- T1610, T1611, T1609, T1525
Implementing Container Network Policies with Calico
Overview
Calico provides Kubernetes-native and extended network policy enforcement through its CNI plugin. This skill covers creating and auditing Calico NetworkPolicy and GlobalNetworkPolicy resources to implement pod-to-pod traffic control, namespace isolation, egress restrictions, and DNS-based policy rules using calicoctl and the Kubernetes API.
When to Use
- When deploying or configuring implementing container network policies with calico capabilities in your environment
- When establishing security controls aligned to compliance requirements
- When building or improving security architecture for this domain
- When conducting security assessments that require this implementation
Prerequisites
- Kubernetes cluster with Calico CNI installed
- Python 3.9+ with
kubernetesclient library - calicoctl CLI tool installed and configured
- kubectl access with RBAC permissions for network policy management
Steps
Step 1: Audit Existing Network Policies
Use calicoctl and kubectl to inventory current network policies and identify unprotected namespaces.
Step 2: Implement Default-Deny Policies
Create default-deny ingress and egress policies per namespace as a zero-trust baseline.
Step 3: Create Workload-Specific Allow Rules
Define granular allow rules for legitimate pod-to-pod and pod-to-service communication.
Step 4: Validate Policy Enforcement
Test connectivity between pods to verify policies are correctly enforced.
Expected Output
JSON audit report listing all network policies, unprotected namespaces, policy rule counts, and connectivity test results.
© 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 3 other files (scripts, references) in skills/implementing-container-network-policies-with-calico of mukul975/Anthropic-Cybersecurity-Skills.
- SKILL.md
- LICENSE
- references/api-reference.md
- scripts/agent.py
Open the folder on GitHubat commit 54a7988
Compare with similar skills
Implementing Container Network Policies With Calico 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Implementing Container Network Policies With Calico this skillmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~680 | Automated safety check: Pass | Apache-2.0 | |
| Phy Cron ExplainerLeoYeAI/openclaw-master-skills | 2.2k | — | ~7k | Automated safety check: Pass | Apache-2.0 | |
| Kubeshark Installerkubeshark/kubeshark | 12k | — | ~3.6k | Automated safety check: Notes | Apache-2.0 | |
| KubeSphere Multi-Tenant Managementkubesphere/kubesphere | 17k | — | ~3.1k | Automated safety check: Pass | Custom licence | |
| Sim Helmsimstudioai/sim | 30k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| Helm Chart ScaffoldingCybereason-Public/owLSM | 280 | 13 repos | ~381 | Automated safety check: Pass | GPL-2.0 |
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Related
Works with
Categories
Questions about Implementing Container Network Policies With Calico
What does Implementing Container Network Policies With Calico do?
Uses Calico's own policy CRDs beyond the upstream Kubernetes API - GlobalNetworkPolicy, HostEndpoint, NetworkSet, policy tiers, and DNS-based egress rules - applied and audited with calicoctl. Implementing Container Network Policies With Calico is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Uses Calico's own policy CRDs beyond the upstream Kubernetes API - GlobalNetworkPolicy, HostEndpoint, NetworkSet, policy tiers, and DNS-based egress rules - applied and audited with calicoctl.
When should I use Implementing Container Network Policies With Calico?
Implementing Container Network Policies With Calico fits situations like: A policy must span namespaces; protect the host itself; egress has to be expressed by domain name; ordering policies into tiers.
How do I install Implementing Container Network Policies With Calico in Claude Code?
Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a claude-code`. Or copy the skill folder (skills/implementing-container-network-policies-with-calico in mukul975/Anthropic-Cybersecurity-Skills) into .claude/skills/implementing-container-network-policies-with-calico in your project. Claude Code loads it when a task matches its description.
How do I install Implementing Container Network Policies With Calico in Codex?
Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-container-network-policies-with-calico -a codex`. Or copy the skill folder (skills/implementing-container-network-policies-with-calico in mukul975/Anthropic-Cybersecurity-Skills) into .agents/skills/implementing-container-network-policies-with-calico in your project. Codex loads it when a task matches its description.
Can I use Implementing Container Network Policies With Calico 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 implementing-container-network-policies-with-calico -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/implementing-container-network-policies-with-calico, .gemini/skills/implementing-container-network-policies-with-calico, .github/skills/implementing-container-network-policies-with-calico and .opencode/skills/implementing-container-network-policies-with-calico in your project.
What does Implementing Container Network Policies With Calico need to run?
Going by SKILL.md and its folder, Implementing Container Network Policies With Calico needs Python for the scripts in its folder. Our summary lists: Python 3.
Does Implementing Container Network Policies With Calico 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 Implementing Container Network Policies With Calico 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 Implementing Container Network Policies With Calico use?
Implementing Container Network Policies With Calico 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 Implementing Container Network Policies With Calico use?
About 680 tokens (SKILL.md is roughly 2.7k 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 481 tokens, read only when the agent opens those files.
What are the alternatives to Implementing Container Network Policies With Calico?
Skills that share tags, products or a category with Implementing Container Network Policies With Calico: Phy Cron Explainer (LeoYeAI/openclaw-master-skills, 2.2k stars), Kubeshark Installer (kubeshark/kubeshark, 12k stars), KubeSphere Multi-Tenant Management (kubesphere/kubesphere, 17k stars) and Sim Helm (simstudioai/sim, 30k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Implementing Container Network Policies With Calico?
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.