local-environment-simulation

local-environment-simulation is a skill for Claude Code, Codex from paruff/uFawkesAI. It costs 39 tokens per session (449 once invoked), scanned A, original, MIT.

A local test setup that imitates software pipelines, monitoring, GitOps, and cluster deployments. GitOps is a way to manage deployments through changes stored in Git; a cluster is a group of machines running services.

In plain words
What is it for?
Use it to build local images, update a local GitOps repository, reconcile changes in a kind or k3d Kubernetes cluster, render Kustomize configurations, and validate deployments.
Why use it?
It lets developers check the path from a code change to a deployed service without relying on remote systems.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it to build local images, update a local GitOps repository, reconcile changes in a kind or k3d Kubernetes cluster, render Kustomize configurations, and validate deployments.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/paruff/ufawkesai/local-environment-simulation
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 paruff/uFawkesAI --skill local-environment-simulation
Clone the repo
git clone --depth 1 https://github.com/paruff/uFawkesAI

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 local-environment-simulation

README.md
[![agentmods](https://agentmods.dev/badge/skills/paruff/ufawkesai/local-environment-simulation.svg)](https://agentmods.dev/skills/paruff/ufawkesai/local-environment-simulation)
Your own site
<a href="https://agentmods.dev/skills/paruff/ufawkesai/local-environment-simulation"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/local-environment-simulation.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 449 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00039 $0.00449
Opus 5 $0.00019 $0.00225
Sonnet 5 $0.00008 $0.00090
Haiku 4.5 $0.00004 $0.00045

Measured 8d ago against content hash 4af0b38ece2d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

local-environment-simulation 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.

.agents/skills/dev-experience/local-environment-simulation/SKILL.md · 75 lines

What it actually says

Skill: Local Environment Simulation

Load trigger: "load local-environment-simulation skill" > DORA: Cap 3 (AI-Accessible Internal Data) Token cost: Low

Purpose

Simulate PIPE, OBS, GitOps, and cluster behavior locally for fast feedback loops.

Responsibilities

  • Run local PIPE simulation
  • Run local OBS simulation
  • Run local GitOps repo
  • Run local kind/k3d cluster
  • Validate local → GitOps → cluster flow

Inputs

  • Project repo
  • Local simulation config

Outputs

  • local-sim-report.json

Sub-Skills

Skill Purpose
local-environment-simulation/gitops-sim Simulate GitOps updates locally
local-environment-simulation/cluster-sim Run local K8s cluster

Simulation Flow

1. Code change → local build
2. Build → local image
3. Image → local GitOps update
4. GitOps → local cluster reconcile
5. Cluster → validate deployment

Tools

Tool Purpose
kind Local K8s cluster
k3d Lightweight K8s cluster
Kustomize Overlay rendering
Git CLI Local GitOps

Rules

  • Local simulation matches real pipeline behavior
  • Fast feedback (< 5 minutes)
  • No remote dependencies required
  • Idempotent simulation

Success Criteria

  • Local simulation matches real pipeline behavior
  • Fast iteration cycles
  • No remote dependencies for basic flows
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.

  1. 8d ago First seen · 75 lines · 39 tokens per session scan A 4af0b38ece2d

Subscribe to this mod's changes

local-environment-simulation is a skill published in the GitHub repository paruff/uFawkesAI (2 stars, last pushed 16d ago), licensed MIT. It adds 39 tokens to every session and 449 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 2026-08-31.

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