JumpStart-AutoNav: Skill for Claude Code

.github/skills/istio-traffic-management/SKILL.md

istio-traffic-management is a skill for Claude Code, Codex from CGSOG-JumpStarts/JumpStart-AutoNav. It costs 40 tokens per session (1,774 once invoked), scanned A, a copy of istio-traffic-management, MIT.

A guide for controlling traffic between services in Istio, a service-mesh system that manages communication between applications running in a cluster.

In plain words
What is it for?
Use it to configure service routing, canary or blue-green releases, traffic mirroring, fault injection, and resilience policies.
Why use it?
It helps apply routing, load balancing, retries, circuit breakers, and gradual releases in a consistent way.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is CGSOG-JumpStarts/JumpStart-AutoNav's own configuration. It tells Claude Code and Codex how to work on JumpStart-AutoNav 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 JumpStart-AutoNav configures →

Reuse

Borrowing it

Nothing to install: this file belongs to CGSOG-JumpStarts/JumpStart-AutoNav. 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/CGSOG-JumpStarts/JumpStart-AutoNav/main/.github/skills/istio-traffic-management/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/CGSOG-JumpStarts/JumpStart-AutoNav

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 istio-traffic-management

README.md
[![agentmods](https://agentmods.dev/badge/skills/cgsog-jumpstarts/jumpstart-autonav/istio-traffic-management/github.svg)](https://agentmods.dev/skills/cgsog-jumpstarts/jumpstart-autonav/istio-traffic-management)
Your own site
<a href="https://agentmods.dev/skills/cgsog-jumpstarts/jumpstart-autonav/istio-traffic-management"><img src="https://agentmods.dev/badge/skills/cgsog-jumpstarts/jumpstart-autonav/istio-traffic-management/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 istio-traffic-management

Your own site · 80×15
<a href="https://agentmods.dev/skills/cgsog-jumpstarts/jumpstart-autonav/istio-traffic-management"><img src="https://agentmods.dev/badge/skills/cgsog-jumpstarts/jumpstart-autonav/istio-traffic-management.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,774 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 88% copy Near-identical to another mod 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 $0.00040 $0.01774
Opus 5 $0.00020 $0.00887
Sonnet 5 $0.00008 $0.00355
Haiku 4.5 $0.00004 $0.00177

Measured 12d ago against content hash 6631d65475e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

istio-traffic-management 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 12d 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.

Origin

This is a copy

88% identical to istio-traffic-management — 27 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.github/skills/istio-traffic-management/SKILL.md · 328 lines

How it starts

The opening of the file, as written. The whole thing — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Istio Traffic Management

Comprehensive guide to Istio traffic management for production service mesh deployments.

When to Use This Skill

  • Configuring service-to-service routing
  • Implementing canary or blue-green deployments
  • Setting up circuit breakers and retries
  • Load balancing configuration
  • Traffic mirroring for testing
  • Fault injection for chaos engineering

Core Concepts

1. Traffic Management Resources

Resource Purpose Scope
VirtualService Route traffic to destinations Host-based
DestinationRule Define policies after routing Service-based
Gateway Configure ingress/egress Cluster edge
ServiceEntry Add external services Mesh-wide

2. Traffic Flow

Client → Gateway → VirtualService → DestinationRule → Service
                   (routing)        (policies)        (pods)

Templates

Template 1: Basic Routing

apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: reviews-route
  namespace: bookinfo
spec:
  hosts:
    - reviews
  http:
    - match:
        - headers:
            end-user:
              exact: jason
      route:
        - destination:
            host: reviews
            subset: v2
    - route:
        - destination:
            host: reviews
            subset: v1
---
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: reviews-destination
  namespace: bookinfo
spec:
  host: reviews
  subsets:
    - name: v1
      labels:
        version: v1
    - name: v2
      labels:
        version: v2
    - name: v3
      labels:
        version: v3

Template 2: Canary Deployment

apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: my-service-canary
spec:
  hosts:
    - my-service
  http:
    - route:
        - destination:
            host: my-service
            subset: stable
          weight: 90
        - destination:
            host: my-service
            subset: canary
          weight: 10
---
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: my-service-dr
spec:
  host: my-service
  trafficPolicy:
    connectionPool:
      tcp:
        maxConnections: 100
      http:
        h2UpgradePolicy: UPGRADE
        http1MaxPendingRequests: 100
        http2MaxRequests: 1000
  subsets:
    - name: stable
      labels:
        version: stable
    - name: canary
      labels:
        version: canary

Read the full file on GitHub · 328 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 · 328 lines · 40 tokens per session scan A 6631d65475e3

Subscribe to this mod's changes

istio-traffic-management is a skill published in the GitHub repository CGSOG-JumpStarts/JumpStart-AutoNav (10 stars, last pushed 4mo ago), licensed MIT. It adds 40 tokens to every session and 1,774 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to istio-traffic-management, differing in 27 lines, and is treated as a copy.

Related

Other skills, from other repositories

scalability-analysis

Use when user asks "will this scale", "scalability", "capacity planning", "what breaks at 10x", when projecting cost at growth milestones, when identifying the next bottleneck before it hits production, or when planning a migration from monolith to distributed architecture.

aneja5/forge-skills · 61 tokens

cost-optimization

Optimize cloud costs across AWS, Azure, GCP, and OCI through resource rightsizing, tagging strategies, reserved instances, and spending analysis. Use when reducing cloud expenses, analyzing infrastructure costs, or implementing cost governance policies.

wshobson/agents · 48 tokens

linkerd-patterns

Implement Linkerd service mesh patterns for lightweight, security-focused service mesh deployments. Use when setting up Linkerd, configuring traffic policies, or implementing zero-trust networking with minimal overhead.

wshobson/agents · 41 tokens

azure-eventhub-dotnet

Azure Event Hubs SDK for .NET. Use for high-throughput event streaming: sending events (EventHubProducerClient, EventHubBufferedProducerClient), receiving events (EventProcessorClient with checkpointing), partition management, and real-time data ingestion. Triggers: "Event Hubs", "event streaming"…

microsoft/skills · 94 tokens

azure-mgmt-fabric-dotnet

Azure Resource Manager SDK for Fabric in .NET. Use for MANAGEMENT PLANE operations: provisioning, scaling, suspending/resuming Microsoft Fabric capacities, checking name availability, and listing SKUs via Azure Resource Manager. Triggers: "Fabric capacity", "create capacity", "suspend capacity", "resume capacity"…

microsoft/skills · 88 tokens

azure-resource-manager-durabletask-dotnet

Azure Resource Manager SDK for Durable Task Scheduler in .NET. Use for MANAGEMENT PLANE operations: creating/managing Durable Task Schedulers, Task Hubs, and retention policies via Azure Resource Manager. Triggers: "Durable Task Scheduler", "create scheduler", "task hub", "DurableTaskSchedulerResource", "provision…

microsoft/skills · 84 tokens