dev-ui-bootstrap

A setup workflow for developing and testing the Cozystack console, a web interface for managing the platform. It starts a Vite development server and connects the UI to a chosen Kubernetes cluster, with Playwright for browser-based end-to-end tests.

In plain words
What is it for?
Fixing or debugging console UI behavior, taking screenshots, and writing or running Playwright end-to-end tests in the Cozystack monorepo.
Why use it?
UI fixes and tests need a running console connected to realistic cluster data. This provides the described development and testing setup without changing the monorepo's main worktree.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/cozystack/ccp/dev-ui-bootstrap
Any agent
npx skills add cozystack/ccp --skill dev-ui-bootstrap
Clone the repo
git clone --depth 1 https://github.com/cozystack/ccp

Made for: Claude Code, Codex.

Per session 184 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,486 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
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 $0.00184 $0.03486
Opus 5 $0.00092 $0.01743
Sonnet 5 $0.00037 $0.00697
Haiku 4.5 $0.00018 $0.00349

Measured yesterday against content hash 1b7a9ae37599, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

dev-ui-bootstrap scanned grade C with 2 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 yesterday.

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.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- `--kubeconfig=<path>` — kubeconfig the Vite dev server should hit through `kubectl proxy`. If absent: list `~/.kube/*config*` files via `ls`, then `AskUserQuestion` to pick one, defaulting to `~/.kube/config` (or `$KUB

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

4. Smoke-test with `curl -sS -o /dev/null -w "%{http_code}" http://localhost:$PROXY_PORT/api`. Expect `200`. `/api` is the unauthenticated API-group discovery endpoint — it returns `200` from any reachable apiserver and
plugins/cozystack/skills/dev-ui-bootstrap/SKILL.md · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.

cozystack:dev-ui-bootstrap

This skill puts an operator in front of a running copy of the Cozystack console UI with Playwright wired up, pointed at a real Kubernetes cluster of their choosing. The UI is vendored in-tree in the cozystack/cozystack monorepo at packages/system/dashboard/images/console (the standalone cozystack-ui repo is archived). It is the standard entry point for "I want to fix something in the UI" tasks — every step is reversible and avoids touching the monorepo's main worktree.

Work in reasoning mode. Walk through the phases in order. State which phase you are in as you go, so the operator can interrupt early if a default is wrong for their machine.

Use the phrasing "cozystack:dev-ui-bootstrap" (not "the skill") in messages to the operator, and state progress at each phase boundary.

Match the operator's natural language detected from prior conversation messages — use it in prompts, AskUserQuestion options, summaries, and gates. Code identifiers, commands, file paths, and commit messages stay in their canonical form (usually English).

Phase 1 — Parse arguments

$ARGUMENTS is the free-form tail after /cozystack:dev-ui-bootstrap. Extract:

  • --kubeconfig=<path> — kubeconfig the Vite dev server should hit through kubectl proxy. If absent: list ~/.kube/*config* files via ls, then AskUserQuestion to pick one, defaulting to ~/.kube/config (or $KUBECONFIG if set). Never assume ~/.kube/config silently — picking the wrong cluster is a frequent footgun.
  • --worktree=<name> — name (relative to <repo>/.claude/worktrees/) for the throwaway monorepo worktree. Default: fix-app.
  • --port=<n> — Vite dev port. Default: pick the first free port starting at 3002 (since 3001 is the console default and is often already in use by another session).
  • --proxy-port=<n>kubectl proxy port. Default: 8001 (matches the console's apps/console/vite.config.ts). If already in use by a proxy pointing at a different kubeconfig, pick the next free port (see Phase 7 for the Vite-side consequence).
  • --no-install — skip pnpm install and @playwright/test install if they are already present.
  • --no-browser — skip npx playwright install chromium.

Read the full file on GitHub · 181 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. yesterday First seen · 181 lines · 184 tokens per session scan C 1b7a9ae37599

Subscribe to this mod's changes

dev-ui-bootstrap is a skill published in the GitHub repository cozystack/ccp (4 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 184 tokens to every session and 3,486 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it C with 2 findings (reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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