Antigravity Skill Vault is a collection of reusable Agent Skills for Google Antigravity, covering software development, operations, security, and business work. It is for people who want Antigravity agents to follow specialized expertise, personas, and structured workflows. The catalogue skills are entries from this collection.
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.
npx skills add rmyndharis/antigravity-skills --skill istio-traffic-managementgit clone --depth 1 https://github.com/rmyndharis/antigravity-skillsWrote 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.
[](https://agentmods.dev/skills/rmyndharis/antigravity-skills/istio-traffic-management)<a href="https://agentmods.dev/skills/rmyndharis/antigravity-skills/istio-traffic-management"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/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.
<a href="https://agentmods.dev/skills/rmyndharis/antigravity-skills/istio-traffic-management"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/istio-traffic-management.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00040 | $0.01821 |
| Opus 5 | $0.00020 | $0.00911 |
| Sonnet 5 | $0.00008 | $0.00364 |
| Haiku 4.5 | $0.00004 | $0.00182 |
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 8d 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.
Copies of this mod
5 near-identical copies found in the catalogue:
- istio-traffic-management — 88% identical, 27 lines differ
- istio-traffic-management — 88% identical, 13 lines differ
- istio-traffic-management — 88% identical, 27 lines differ
- istio-traffic-management — 88% identical, 31 lines differ
- istio-traffic-management — 88% identical, 27 lines differ
How it starts
The opening of the file, as written. The whole thing — 337 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.
Do not use this skill when
- The task is unrelated to istio traffic management
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
Use this skill when
- 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
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.
- 8d ago First seen · 337 lines · 40 tokens per session scan A 5a465f810427
istio-traffic-management is a skill published in the GitHub repository rmyndharis/antigravity-skills (1,529 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 1,821 once invoked, about $0.0002 per session on Opus 5. 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 2026-09-03.
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