# Build

> Reduce CI/CD build times. Analyzes Dockerfiles, Webpack/Vite configs, and GitHub Actions workflows to identify the slowest step and apply targeted caching and build optimizations.

- **Type:** Skill
- **Install:** `agentstack add skill-v0idos-performance-deity-build`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [v0idOS](https://agentstack.voostack.com/s/v0idos)
- **Installs:** 0
- **Category:** [Developer Tools](https://agentstack.voostack.com/c/developer-tools)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [v0idOS](https://github.com/v0idOS)
- **Source:** https://github.com/v0idOS/performance-deity/tree/main/skills/build
- **Website:** https://v0idos.github.io/performance-deity/

## Install

```sh
agentstack add skill-v0idos-performance-deity-build
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

Execute all three phases in order.

## Phase 1 — Bottleneck

Analyze whichever config file applies:
- `Dockerfile`
- `webpack.config.js` / `vite.config.ts`
- `.github/workflows/*.yml`

Identify the single step that consumes the most wall-clock time.

## Phase 2 — Fix

**Docker:**
- Reorder layers: least-changing first (OS deps, runtime), most-changing last (app code).
- Use multi-stage builds: compile in a full image, copy only the output artifact into a minimal runtime image (e.g. `alpine`).

**Webpack / Vite:**
- Enable code splitting and tree-shaking.
- Enable `TerserPlugin` with `parallel: true`.
- Set `cache: { type: 'filesystem' }` for persistent build caching.

**GitHub Actions:**
- Cache `node_modules` using `actions/cache` keyed on the hash of `package-lock.json`.
- Cache `pip` packages keyed on the hash of `requirements.txt`.
- Add `concurrency:` groups to cancel in-progress runs on force-push.

## Phase 3 — Report

State: "This change will save approximately X minutes per PR run" with explicit reasoning.

| Step | Before | After | Saved |
|---|---|---|---|
| Dependency install | Xmin | Ymin | Zmin |
| Build / compile | Xmin | Ymin | Zmin |
| Total pipeline | Xmin | Ymin | Zmin |

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [v0idOS](https://github.com/v0idOS)
- **Source:** [v0idOS/performance-deity](https://github.com/v0idOS/performance-deity)
- **License:** MIT
- **Homepage:** https://v0idos.github.io/performance-deity/

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-v0idos-performance-deity-build
- Seller: https://agentstack.voostack.com/s/v0idos
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.