Kubeshark KFL2 Filter Reference
kubeshark/kubeshark
Syntax reference for KFL2, the CEL-based display filter language used to search Kubernetes network traffic captured by Kubeshark, loaded before any filter is written.
Automatically discover networking and connectivity skills when working with TCP, UDP, DNS, mTLS, NAT traversal, SSH, Mosh, Tailscale, or network resilience.
Install Discover Networking
$ npx skills add rand/cc-polymath --skill discover-networking -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rand/cc-polymath discover-networking --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/rand/cc-polymath.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/discover-networking .claude/skills/discover-networking && 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 "discover-networking" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-networking into .claude/skills/discover-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-networking", 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/rand/cc-polymath/tree/main/skills/discover-networkingType 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 rand/cc-polymath --skill discover-networking -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rand/cc-polymath discover-networking --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/discover-networking .agents/skills/discover-networking && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "discover-networking" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-networking into .agents/skills/discover-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-networking", 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 rand/cc-polymath --skill discover-networking -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rand/cc-polymath discover-networking --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/discover-networking .cursor/skills/discover-networking && 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 "discover-networking" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-networking into .cursor/skills/discover-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-networking", 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/rand/cc-polymath.git --path skills/discover-networking--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 rand/cc-polymath --skill discover-networking -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rand/cc-polymath discover-networking --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/discover-networking .gemini/skills/discover-networking && 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 "discover-networking" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-networking into .gemini/skills/discover-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-networking", 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 rand/cc-polymath discover-networkingInstalls 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 rand/cc-polymath --skill discover-networking -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/discover-networking .github/skills/discover-networking && 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 "discover-networking" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-networking into .github/skills/discover-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-networking", 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 rand/cc-polymath --skill discover-networking -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rand/cc-polymath discover-networking --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rand/cc-polymath.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/discover-networking .opencode/skills/discover-networking && 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 "discover-networking" agent skill from https://github.com/rand/cc-polymath/tree/main/skills/discover-networking into .opencode/skills/discover-networking/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discover-networking", 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
discover-networking- GitHub stars
- 181
- Token cost
- ~543 tokens
- SKILL.md length
- 200 words
- Files
- 1
- Skills in repo
- 26
- Repo updated
- First seen
- Licence
- MIT
At a glance
Automatically discover networking and connectivity skills when working with TCP, UDP, DNS, mTLS, NAT traversal, SSH, Mosh, Tailscale, or network resilience.
- Works in 5 steps: mosh-resilient-ssh → mtls-implementation → nat-traversal → …
- Tasks that involve Cloud networking
- SKILL.md covers When This Skill Activates, Available Skills, Progressive Loading and Usage Instructions
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Discover Networking is an agent skill from rand/cc-polymath. Automatically discover networking and connectivity skills when working with TCP, UDP, DNS, mTLS, NAT traversal, SSH, Mosh, Tailscale, or network resilience. Activates for networking development tasks.
Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.
It sits in DevOps & Cloud, covering Cloud networking. The repository describes itself as: Claude Code skills and workflows, optimized for context-efficiency and skill quality. Skills ranging from cloud infrastructure to design to advanced maths. The licence is MIT.
When your agent uses it
- Tasks that involve Cloud networking
Example prompts
- “/discover-networking”
Requirements
- Compatibility (from SKILL.md): Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- mosh-resilient-ssh
- mtls-implementation
- nat-traversal
- network-resilience-patterns
- tailscale-vpn
What it can do on your machine
Read from SKILL.md and the folder at commit baa2df1. 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
No scripts in the folder and no shell commands in SKILL.md.
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.
Compatibility
Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.
From compatibility in the SKILL.md frontmatter.
Context cost
Discover Networking loads about 543 tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 200 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); files beside SKILL.md are not scanned.
SKILL.md
The full file from rand/cc-polymath at commit baa2df1, republished under its MIT licence (© rand). 200 words, ~543 tokens.
Download SKILL.mdSave it as
.claude/skills/discover-networking/SKILL.md (or your agent's skills folder).- name
- discover-networking
- description
- Automatically discover networking and connectivity skills when working with TCP, UDP, DNS, mTLS, NAT traversal, SSH, Mosh, Tailscale, or network resilience. Activates for networking development tasks.
- compatibility
- Designed for Claude Code. Compatible with any agent supporting the Agent Skills format.
- license
- MIT
- metadata.author
- rand
- metadata.version
- 4.0
Networking Skills Discovery
Provides automatic access to comprehensive networking skills.
When This Skill Activates
This skill auto-activates when you're working with:
- networking
- SSH
- mTLS
- NAT traversal
- VPN
- Tailscale
- network resilience
- connection reliability
- HTTP, HTTP/2, HTTP/3
- TCP, UDP, QUIC
- network protocols
- protocol debugging
- protocol selection
- network communication
- web protocols
- transport layer
- application layer protocols
- Forward/reverse proxies
- HTTP proxy configuration
- Nginx, Traefik, Envoy, Caddy
- Load balancing
- SSL/TLS termination
- HTTP caching and CDN
- Cache invalidation
- NATS messaging
- Service mesh patterns
Available Skills
Quick Reference
The Networking category contains 20 skills across 3 subcategories:
Networking (5 skills):
- mosh-resilient-ssh
- mtls-implementation
- nat-traversal
- network-resilience-patterns
- tailscale-vpn
Protocols (8 skills): See ../protocols/INDEX.md
Proxies (7 skills): See ../proxies/INDEX.md
Load Full Category Details
Read ../networking/INDEX.md Read ../protocols/INDEX.md Read ../proxies/INDEX.md
Progressive Loading
This gateway skill enables progressive loading:
- Level 1: Gateway loads automatically (you're here now)
- Level 2: Load category INDEX.md for full overview
- Level 3: Load specific skills as needed
Usage Instructions
- Auto-activation: This skill loads automatically when Claude Code detects networking work
- Browse skills: Run
Read ../networking/INDEX.mdfor full category overview - Load specific skills: Use bash commands above to load individual skills
Next Steps: Run Read ../networking/INDEX.md to see full category details.
© rand, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/discover-networking of rand/cc-polymath.
Open the folder on GitHubat commit baa2df1
Compare with similar skills
Discover Networking 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 |
|---|---|---|---|---|---|---|
| Discover Networking this skillrand/cc-polymath | 181 | — | ~543 | Automated safety check: Pass | MIT | |
| Kubeshark KFL2 Filter Referencekubeshark/kubeshark | 12k | — | ~3.6k | Automated safety check: Pass | Apache-2.0 | |
| Nginx To Higress Migrationhigress-group/higress | 9.5k | — | ~3.9k | Automated safety check: Pass | Apache-2.0 | |
| Bfe Rd Workflowbfenetworks/bfe | 6.3k | — | ~1.3k | Automated safety check: Pass | Apache-2.0 | |
| NGINX Ingress Controller Feature Checklistsnginx/kubernetes-ingress | 5.1k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| NGINX Ingress Policy CRD Guidenginx/kubernetes-ingress | 5.1k | — | ~2k | Automated safety check: Pass | Apache-2.0 |
Similar skills
Nginx To Higress Migration
higress-group/higress
Migrate from ingress-nginx to Higress in Kubernetes environments.
Bfe Rd Workflow
bfenetworks/bfe
引导用户在 bfe 代码库中完成一次完整的功能研发流程，包括需求对齐、文档修改、代码实现、集成测试与回归验证. An agent skill from bfenetworks/bfe.
NGINX Ingress Controller Feature Checklists
nginx/kubernetes-ingress
Gives step-by-step checklists for adding Ingress annotations, VirtualServer fields and Helm values to the NGINX Kubernetes Ingress Controller, with common gotchas.
NGINX Ingress Policy CRD Guide
nginx/kubernetes-ingress
Step-by-step checklist for adding a new Policy CRD type to the NGINX Ingress Controller, from the Go types and validation to config generation and templates.
ArvanCloud API Operator
erfnzdeh/arvancloud-agent-skill
Drives ArvanCloud's REST APIs for CDN, DNS, cloud servers, object storage and more, with helper scripts for calls, account inventory and certificates.
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Related
Categories
Questions about Discover Networking
What does Discover Networking do?
Automatically discover networking and connectivity skills when working with TCP, UDP, DNS, mTLS, NAT traversal, SSH, Mosh, Tailscale, or network resilience. Discover Networking is an agent skill from rand/cc-polymath. Automatically discover networking and connectivity skills when working with TCP, UDP, DNS, mTLS, NAT traversal, SSH, Mosh, Tailscale, or network resilience.
When should I use Discover Networking?
Discover Networking fits situations like: tasks that involve Cloud networking.
How do I install Discover Networking in Claude Code?
Run `npx skills add rand/cc-polymath --skill discover-networking -a claude-code`. Or copy the skill folder (skills/discover-networking in rand/cc-polymath) into .claude/skills/discover-networking in your project. Claude Code loads it when a task matches its description.
How do I install Discover Networking in Codex?
Run `npx skills add rand/cc-polymath --skill discover-networking -a codex`. Or copy the skill folder (skills/discover-networking in rand/cc-polymath) into .agents/skills/discover-networking in your project. Codex loads it when a task matches its description.
Can I use Discover Networking 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 rand/cc-polymath --skill discover-networking -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/discover-networking, .gemini/skills/discover-networking, .github/skills/discover-networking and .opencode/skills/discover-networking in your project.
What does Discover Networking need to run?
SKILL.md names no scripts, command-line tools or credentials: Discover Networking is instructions for the agent only. Compatibility (from SKILL.md): Designed for Claude Code. Compatible with any agent supporting the Agent Skills format..
Does Discover Networking 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 Discover Networking 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. Review the folder before installing.
What licence does Discover Networking use?
Discover Networking is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Discover Networking use?
About 543 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Discover Networking?
Skills that share tags, products or a category with Discover Networking: Kubeshark KFL2 Filter Reference (kubeshark/kubeshark, 12k stars), Nginx To Higress Migration (higress-group/higress, 9.5k stars), Bfe Rd Workflow (bfenetworks/bfe, 6.3k stars) and NGINX Ingress Controller Feature Checklists (nginx/kubernetes-ingress, 5.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Discover Networking?
rand (a GitHub user) maintains it in rand/cc-polymath, which has 181 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on February 28, 2026.
Source: rand/cc-polymath on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.