k8s-envoy-gateway-troubleshooting SKILL.md skillA

k8s-envoy-gateway-troubleshooting from k8s-servant/k8s-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add k8s-servant/k8s-skills/k8s-envoy-gateway-troubleshooting@git:20261031.7e95e4f

Pins git:20261031.7e95e4f in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
k8s-servant/k8s-skills
Path
skills/k8s-envoy-gateway-troubleshooting/SKILL.md
Versions recorded
3
Latest version
git:20261031.7e95e4f, committed Oct 31, 2026
First version recorded
Oct 24, 2026
Size
10,177 bytes
Repository stars
35
License
Apache-2.0

Use when Envoy Gateway (the Gateway API implementation by the Envoy project) does not route traffic in Kubernetes: a Gateway that is not Programmed ("AddressNotAssigned"), an HTTPRoute that is not Accepted ("NoMatchingListenerHostname", "NotAllowedByListeners") or whose ResolvedRefs is False ("BackendNotFound", "RefNotPermitted" without a ReferenceGrant), clients getting 404, 500 or 503 "no healthy upstream" from the gateway, a GatewayClass that is not Accepted, or BackendTrafficPolicy…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Envoy Gateway troubleshooting

Find out why Envoy Gateway does not route a request, and propose a fix. **Read first,
ask before changing.** Run the investigation commands freely. Run a command under an
"Ask first" line only after the user approves that exact command; if your credentials
do not allow it, give it to the user to run. Never run a "Proposed fix"; hand it to the
user.

A **GatewayClass** with controller `gateway.envoyproxy.io/gatewayclass-controller`
belongs to Envoy Gateway. For each **Gateway** of that class, Envoy Gateway runs an
Envoy Deployment and Service (by default in `envoy-gateway-system`, labelled
`gateway.envoyproxy.io/owning-gateway-name`). **HTTPRoutes** (and GRPC, TLS, TCP and UDP
routes) attach to a Gateway's listeners and send traffic to backends. Every object
reports what Envoy Gateway made of it in its status conditions, so the status usually
names the cause. Envoy Gateway's own policies (**BackendTrafficPolicy**,
**ClientTrafficPolicy**, **SecurityPolicy**, **EnvoyProxy**, **EnvoyPatchPolicy**)
attach to Gateways or routes.

The commands use placeholders: `my-namespace`, `my-gateway`, `my-app` (the route and
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add k8s-servant/k8s-skills/k8s-envoy-gateway-troubleshooting@sha256:94fb931ee5a079a9

The line at the top of this page pins the label git:20261031.7e95e4f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_cqm5elqrw2m5q4xy.svg)](https://markdownregistry.com/a/art_cqm5elqrw2m5q4xy)

0 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Oct 24, 2026 and Oct 31, 2026, about one every 3 days.

versioncommittedcommitsizeaudit
git:20261031.7e95e4f latest2026-10-31 7e95e4f 10,177 BA view · diff
git:20261025.2ed8c842026-10-25 2ed8c84 9,987 BA view · diff
git:20261024.33c1e082026-10-24 33c1e08 9,821 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10177 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

k8s-servant/k8s-skills · 35 stars · license Apache-2.0 · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_cqm5elqrw2m5q4xy
GET https://markdownregistry.com/api/v1/resolve?ref=k8s-servant/k8s-skills/k8s-envoy-gateway-troubleshooting
GET https://markdownregistry.com/api/v1/blob/94fb931ee5a079a91f617d9deca1cd8f52504288a8e8797db758b3268c4128d7

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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