What is k8s-service-mesh?

A Kubernetes service-mesh diagnostic and operations guide for Istio and Linkerd. A service mesh manages communication between services, including routing, encryption, and service identity.

Use it to inspect mesh health, sidecars, routes, gateways, mutual TLS, external dependencies, canary traffic, and mirrored traffic.

It helps explain broken service-to-service traffic, unhealthy proxies, certificate problems, and overloaded retry paths.

k8s-service-mesh — Skill for Claude Code and Codex by yindia

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add yindia/rootcause --skill k8s-service-mesh

Clone the repo

git clone --depth 1 https://github.com/yindia/rootcause

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/yindia/rootcause/k8s-service-mesh/github.svg)](https://agentmods.dev/skills/yindia/rootcause/k8s-service-mesh)

Your own site

<a href="https://agentmods.dev/skills/yindia/rootcause/k8s-service-mesh"><img src="https://agentmods.dev/badge/skills/yindia/rootcause/k8s-service-mesh/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/yindia/rootcause/k8s-service-mesh"><img src="https://agentmods.dev/badge/skills/yindia/rootcause/k8s-service-mesh.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,591 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.02591
Opus 5	$0.00000	$0.01295
Sonnet 5	$0.00000	$0.00518
Haiku 4.5	$0.00000	$0.00259

Measured 10d ago against content hash 04ad8c55839f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

k8s-service-mesh scanned grade A with 0 findings 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 10d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/claude/k8s-service-mesh/SKILL.md · 294 lines

How it starts

The opening of the file, as written. The whole thing — 294 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: k8s-service-mesh

Comprehensive service mesh diagnostics and operations guidance for Istio and Linkerd using RootCause MCP tools only.

Scope

Mesh control-plane readiness and degradation analysis.
Data-plane proxy readiness, drift, and configuration inspection.
Routing diagnostics for VirtualService, DestinationRule, Gateway, and HTTPRoute paths.
mTLS and identity troubleshooting workflows.
External dependency checks and blast-radius mapping.
Namespace mesh footprint discovery and service-to-proxy mapping.

Tooling Rule

Use RootCause tool names only.
Do not use kubectl-style MCP aliases in this skill.
Prefer mesh-specific tools first, then k8s.describe, k8s.list, k8s.events, and k8s.events_timeline for corroborating evidence.

Triggers

istio
linkerd
service mesh
envoy
sidecar
mesh traffic
mTLS
certificate rotation
destination rule
virtualservice
gateway api
httproute
canary routing
mirrored traffic
service-to-service timeout
retries causing overload
identity handshake failures

Canonical Tool List

Istio

istio.health
istio.proxy_status
istio.config_summary
istio.service_mesh_hosts
istio.discover_namespaces
istio.pods_by_service
istio.external_dependency_check
istio.proxy_clusters
istio.proxy_listeners
istio.proxy_routes
istio.proxy_endpoints
istio.proxy_bootstrap
istio.proxy_config_dump
istio.cr_status
istio.virtualservice_status
istio.destinationrule_status
istio.gateway_status
istio.httproute_status

Linkerd

linkerd.health
linkerd.proxy_status
linkerd.identity_issues
linkerd.policy_debug
linkerd.cr_status
linkerd.virtualservice_status
linkerd.destinationrule_status
linkerd.gateway_status
linkerd.httproute_status

Supporting Kubernetes tools

k8s.describe
k8s.list
k8s.events
k8s.events_timeline
k8s.network_debug
k8s.config_debug

Priority Rules

Read the full file on GitHub · 294 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

10d ago First seen · 294 lines · 0 tokens per session scan A 04ad8c55839f

Subscribe to this mod's changes

k8s-service-mesh is a skill published in the GitHub repository yindia/rootcause (42 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,591 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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