higress: Skill for Claude Code

.agents/skills/nginx-to-higress-migration/SKILL.md

nginx-to-higress-migration is a skill for Claude Code, Codex from higress-group/higress. It costs 99 tokens per session (3,945 once invoked), scanned A, original, Apache-2.0.

A workflow for moving Kubernetes traffic rules from ingress-nginx to Higress. Kubernetes is a system for running containers, and an Ingress resource describes how outside traffic reaches applications.

In plain words
What is it for?
Use it to inspect existing Ingress resources, back them up, identify nginx annotations, install Higress, and plan replacements for unsupported features. It can also guide WASM plugin replacements where needed.
Why use it?
It highlights incompatibilities that could silently remove behaviour during migration, especially unsupported nginx snippet annotations. It also provides checks and prerequisites for a safer move.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument; installed under .agents/ (shared by several agents).

This is higress-group/higress's own configuration. It tells Claude Code and Codex how to work on higress itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything higress configures →

About the project

Higress is a cloud-native API gateway built on Istio and Envoy that routes and manages APIs and can be extended with WebAssembly plugins. It is used to manage APIs for AI models and MCP servers as well as general services, and the catalogue entries provide agent workflows and integrations for operating it.

higress-group/higress · 9,365 stars · on GitHub · higress.ai

Reuse

Borrowing it

Nothing to install: this file belongs to higress-group/higress. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/higress-group/higress/main/.agents/skills/nginx-to-higress-migration/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/higress-group/higress

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nginx-to-higress-migration

README.md
[![agentmods](https://agentmods.dev/badge/skills/higress-group/higress/nginx-to-higress-migration/github.svg)](https://agentmods.dev/skills/higress-group/higress/nginx-to-higress-migration)
Your own site
<a href="https://agentmods.dev/skills/higress-group/higress/nginx-to-higress-migration"><img src="https://agentmods.dev/badge/skills/higress-group/higress/nginx-to-higress-migration/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nginx-to-higress-migration

Your own site · 80×15
<a href="https://agentmods.dev/skills/higress-group/higress/nginx-to-higress-migration"><img src="https://agentmods.dev/badge/skills/higress-group/higress/nginx-to-higress-migration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,945 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 394
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00099 $0.03945
Opus 5 $0.00049 $0.01972
Sonnet 5 $0.00020 $0.00789
Haiku 4.5 $0.00010 $0.00394

Measured 12d ago against content hash 504bf863b6f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

nginx-to-higress-migration scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/analyze-ingress.sh, scripts/generate-migration-test.sh, scripts/generate-plugin-scaffold.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -H "Host: example.com" http://localhost:8080/
.agents/skills/nginx-to-higress-migration/SKILL.md · 478 lines

How it starts

The opening of the file, as written. The whole thing — 478 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Nginx to Higress Migration

Automate migration from ingress-nginx to Higress in Kubernetes environments.

⚠️ Critical Limitation: Snippet Annotations NOT Supported

Before you begin: Higress does NOT support the following nginx annotations:

  • nginx.ingress.kubernetes.io/server-snippet
  • nginx.ingress.kubernetes.io/configuration-snippet
  • nginx.ingress.kubernetes.io/http-snippet

These annotations will be silently ignored, causing functionality loss!

Pre-migration check (REQUIRED):

kubectl get ingress -A -o yaml | grep -E "snippet" | wc -l

If count > 0, you MUST plan WASM plugin replacements before migration. See Phase 6 for alternatives.

Prerequisites

  • kubectl configured with cluster access
  • helm 3.x installed
  • Go 1.24+ (for WASM plugin compilation)
  • Docker (for plugin image push)

Pre-Migration Checklist

Before Starting

  • Backup all Ingress resources
    kubectl get ingress -A -o yaml > ingress-backup.yaml
    
  • Identify snippet usage (see warning above)
  • List all nginx annotations in use
    kubectl get ingress -A -o yaml | grep "nginx.ingress.kubernetes.io" | sort | uniq -c
    
  • Verify Higress compatibility for each annotation (see annotation-mapping.md)
  • Plan WASM plugins for unsupported features
  • Prepare test environment (Kind/Minikube for testing recommended)

During Migration

  • Install Higress in parallel with nginx
  • Verify all pods running in higress-system namespace
  • Run test script against Higress gateway
  • Compare responses between nginx and Higress
  • Deploy any required WASM plugins
  • Configure monitoring/alerting

After Migration

  • All routes verified working
  • Custom functionality (snippet replacements) tested
  • Monitoring dashboards configured
  • Team trained on Higress operations
  • Documentation updated
  • Rollback procedure tested

Read the full file on GitHub · 478 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 478 lines · 99 tokens per session scan A 504bf863b6f3

Subscribe to this mod's changes

nginx-to-higress-migration is a skill published in the GitHub repository higress-group/higress (9,365 stars, last pushed yesterday), licensed Apache-2.0. It adds 99 tokens to every session and 3,945 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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