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.
Operates the KubeSphere network extension with kubectl, covering install, configuration, Calico IP pools and network isolation policies.
Install KubeSphere Network Extension Operations
$ npx skills add kubesphere/kubesphere --skill kubesphere-network-extension-operations -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kubesphere/kubesphere kubesphere-network-extension-operations --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/kubesphere/kubesphere.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/kubesphere-network-extension-operations .claude/skills/kubesphere-network-extension-operations && 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 "kubesphere-network-extension-operations" agent skill from https://github.com/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operations into .claude/skills/kubesphere-network-extension-operations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kubesphere-network-extension-operations", 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/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operationsType 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 kubesphere/kubesphere --skill kubesphere-network-extension-operations -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kubesphere/kubesphere kubesphere-network-extension-operations --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kubesphere/kubesphere.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/kubesphere-network-extension-operations .agents/skills/kubesphere-network-extension-operations && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "kubesphere-network-extension-operations" agent skill from https://github.com/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operations into .agents/skills/kubesphere-network-extension-operations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kubesphere-network-extension-operations", 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 kubesphere/kubesphere --skill kubesphere-network-extension-operations -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kubesphere/kubesphere kubesphere-network-extension-operations --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kubesphere/kubesphere.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/kubesphere-network-extension-operations .cursor/skills/kubesphere-network-extension-operations && 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 "kubesphere-network-extension-operations" agent skill from https://github.com/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operations into .cursor/skills/kubesphere-network-extension-operations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kubesphere-network-extension-operations", 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/kubesphere/kubesphere.git --path skills/kubesphere-network-extension-operations--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 kubesphere/kubesphere --skill kubesphere-network-extension-operations -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kubesphere/kubesphere kubesphere-network-extension-operations --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kubesphere/kubesphere.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/kubesphere-network-extension-operations .gemini/skills/kubesphere-network-extension-operations && 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 "kubesphere-network-extension-operations" agent skill from https://github.com/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operations into .gemini/skills/kubesphere-network-extension-operations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kubesphere-network-extension-operations", 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 kubesphere/kubesphere kubesphere-network-extension-operationsInstalls 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 kubesphere/kubesphere --skill kubesphere-network-extension-operations -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kubesphere/kubesphere.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/kubesphere-network-extension-operations .github/skills/kubesphere-network-extension-operations && 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 "kubesphere-network-extension-operations" agent skill from https://github.com/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operations into .github/skills/kubesphere-network-extension-operations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kubesphere-network-extension-operations", 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 kubesphere/kubesphere --skill kubesphere-network-extension-operations -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kubesphere/kubesphere kubesphere-network-extension-operations --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kubesphere/kubesphere.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/kubesphere-network-extension-operations .opencode/skills/kubesphere-network-extension-operations && 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 "kubesphere-network-extension-operations" agent skill from https://github.com/kubesphere/kubesphere/tree/master/skills/kubesphere-network-extension-operations into .opencode/skills/kubesphere-network-extension-operations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kubesphere-network-extension-operations", 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
kubesphere-network-extension-operations- GitHub stars
- 17k
- Token cost
- ~2.3k tokens
- SKILL.md length
- 751 words
- Files
- 8 (incl. references)
- Skills in repo
- 32
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Operates the KubeSphere network extension with kubectl, covering install, configuration, Calico IP pools and network isolation policies.
- Works in 4 steps: Read the matching bundled references for… → Inspect the current live extension,… → Apply the smallest change that satisfies… → …
- Installing or upgrading the KubeSphere network extension
- SKILL.md covers When to Use, Do Not Use, Read First and Fixed Facts, plus 7 more sections
- Calls kubectl and rg
What it does
The skill operates the KubeSphere network extension with kubectl, preferring live cluster state first and then the bundled references for packaging details, API shapes and product behavior. It covers installing, upgrading, enabling, disabling and inspecting the extension, editing InstallPlan.spec.config for IPPool and NetworkPolicy feature toggles, and checking version, images, dependencies and installation mode.
It also handles Calico IPPool resources, namespace bindings, occupancy and migration, cluster, workspace and project network isolation, and Kubernetes NetworkPolicy troubleshooting. Fixed facts include the extension and InstallPlan both being named network, the Multicluster installation mode and the toggles global.ippool.enable, global.ippool.webhook and global.networkPolicy.enable.
Guardrails: do not treat the deprecated network.kubesphere.io IPPool CRDs as the source of truth, do not assume any backend other than Calico, which is the only supported type, do not touch unrelated extensions, and read the live object before patching workspace, namespace or IPPool binding metadata. References include a Chinese README, API notes, values.yaml, extension.yaml and the swagger spec, and evals are bundled.
When your agent uses it
- Installing or upgrading the KubeSphere network extension
- Enabling the IPPool or NetworkPolicy feature through the InstallPlan
- Binding a Calico IPPool to a namespace or migrating pods between pools
- Troubleshooting namespace network isolation or a NetworkPolicy
Example prompts
- “Check whether the network extension is installed and which features are enabled.”
- “Enable the IPPool webhook in the network InstallPlan and show me the change first.”
- “Bind the new IPPool to the payments namespace after reading its current binding.”
- “Why is traffic blocked between two projects with network isolation enabled?”
Requirements
- kubectl access to a KubeSphere cluster
- Permissions to read and edit the network InstallPlan
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Read the matching bundled references for the request.
- Inspect the current live extension, InstallPlan, and relevant cluster resources.
- Apply the smallest change that satisfies the request.
- Re-read the changed resources and verify the post-change state.
What it can do on your machine
Read from SKILL.md and the folder at commit 04a29b5. 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
Shell commands in SKILL.md call:
kubectlrg
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use kubectl, which can reach the network depending on how they are called.
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
KubeSphere Network Extension Operations loads about 2.3k tokens when it runs, and up to ~10k if it reads all its reference files. Until then it costs about 87 tokens; SKILL.md has 751 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 751 words (~2,284 tokens).
“Operate the network extension and its related resources with kubectl plus the bundled references in this skill. Prefer the live cluster state first, then use the copied extension references here to resolve packaging details, API shapes, and product behavior.”
- name
- kubesphere-network-extension-operations
Files
SKILL.md and 7 other files (references) in skills/kubesphere-network-extension-operations of kubesphere/kubesphere.
- SKILL.md
- agents/openai.yaml
- evals/evals.json
- references/README_zh.md
- references/api_doc.md
- references/extension.yaml
- references/swagger.yaml
- references/values.yaml
Open the folder on GitHubat commit 04a29b5
Compare with similar skills
KubeSphere Network Extension Operations 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 |
|---|---|---|---|---|---|---|
| KubeSphere Network Extension Operations this skillkubesphere/kubesphere | 17k | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| 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 | |
| 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 | |
| Aks Deployment Skilltimothywarner/chatgptclass | 143 | — | ~916 | Automated safety check: Pass | Custom licence |
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NGINX Ingress Policy CRD Guide
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Deploy and operate workloads on Azure Kubernetes Service (AKS) the safe way.
Kubernetes Patterns
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Kubernetes workload patterns, resource management, RBAC, probes, autoscaling, ConfigMap/Secret handling, and kubectl debugging for production-grade deployments.
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KubeEye Cluster Inspection
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Related
Works with
Categories
Questions about KubeSphere Network Extension Operations
What does KubeSphere Network Extension Operations do?
Operates the KubeSphere network extension with kubectl, covering install, configuration, Calico IP pools and network isolation policies. The skill operates the KubeSphere network extension with kubectl, preferring live cluster state first and then the bundled references for packaging details, API shapes and product behavior.config for IPPool and NetworkPolicy feature toggles, and checking version, images, dependencies and installation mode.
When should I use KubeSphere Network Extension Operations?
KubeSphere Network Extension Operations fits situations like: installing or upgrading the KubeSphere network extension; enabling the IPPool or NetworkPolicy feature through the InstallPlan; binding a Calico IPPool to a namespace or migrating pods between pools; troubleshooting namespace network isolation or a NetworkPolicy.
How do I install KubeSphere Network Extension Operations in Claude Code?
Run `npx skills add kubesphere/kubesphere --skill kubesphere-network-extension-operations -a claude-code`. Or copy the skill folder (skills/kubesphere-network-extension-operations in kubesphere/kubesphere) into .claude/skills/kubesphere-network-extension-operations in your project. Claude Code loads it when a task matches its description.
How do I install KubeSphere Network Extension Operations in Codex?
Run `npx skills add kubesphere/kubesphere --skill kubesphere-network-extension-operations -a codex`. Or copy the skill folder (skills/kubesphere-network-extension-operations in kubesphere/kubesphere) into .agents/skills/kubesphere-network-extension-operations in your project. Codex loads it when a task matches its description.
Can I use KubeSphere Network Extension Operations 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 kubesphere/kubesphere --skill kubesphere-network-extension-operations -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/kubesphere-network-extension-operations, .gemini/skills/kubesphere-network-extension-operations, .github/skills/kubesphere-network-extension-operations and .opencode/skills/kubesphere-network-extension-operations in your project.
What does KubeSphere Network Extension Operations need to run?
Going by SKILL.md and its folder, KubeSphere Network Extension Operations needs the command-line tools its instructions call (kubectl and rg). Our summary lists: kubectl access to a KubeSphere cluster; Permissions to read and edit the network InstallPlan.
Does KubeSphere Network Extension Operations 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 KubeSphere Network Extension Operations 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 KubeSphere Network Extension Operations use?
KubeSphere Network Extension Operations has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does KubeSphere Network Extension Operations use?
About 2.3k tokens (SKILL.md is roughly 9.1k 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 8.2k tokens, read only when the agent opens those files.
What are the alternatives to KubeSphere Network Extension Operations?
Skills that share tags, products or a category with KubeSphere Network Extension Operations: Kubeshark KFL2 Filter Reference (kubeshark/kubeshark, 12k stars), Nginx To Higress Migration (higress-group/higress, 9.5k stars), NGINX Ingress Controller Feature Checklists (nginx/kubernetes-ingress, 5.1k stars) and NGINX Ingress Policy CRD Guide (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 KubeSphere Network Extension Operations?
kubesphere (a GitHub organization) maintains it in kubesphere/kubesphere, which has 17,057 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on July 15, 2026.
Source: kubesphere/kubesphere on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.