# Droo Stack

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- **Type:** Skill
- **Install:** `agentstack add skill-droodotfoo-agent-skills-droo-stack`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [DROOdotFOO](https://agentstack.voostack.com/s/droodotfoo)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [DROOdotFOO](https://github.com/DROOdotFOO)
- **Source:** https://github.com/DROOdotFOO/agent-skills/tree/main/skills/droo-stack
- **Website:** https://droo.foo/

## Install

```sh
agentstack add skill-droodotfoo-agent-skills-droo-stack
```

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

## About

# droo-stack

Concrete coding patterns for a polyglot stack. Each rule shows **Incorrect** and **Correct** examples with rationale. These complement CLAUDE.md (which sets high-level preferences) with detailed, actionable reference material.

## What You Get

- Incorrect/Correct code examples with rationale for each language
- Patterns organized by impact level (critical, high, medium)
- Language-specific idioms: pipes, pattern matching, error handling, testing
- Complements CLAUDE.md preferences with concrete, actionable rules

## When to use

This skill activates contextually when working in the languages below. Read the relevant rule file for the language you're working in.

## Rules by impact

### CRITICAL

- [go-errors](rules/go-errors.md) -- Error wrapping, `errors.Is`/`errors.As`, sentinel errors
- [rust-errors](rules/rust-errors.md) -- thiserror/anyhow, `?` operator, From implementations
- [noir-patterns](rules/noir-patterns.md) -- Field vs integers, constrained/unconstrained, nargo tests

### HIGH

- [elixir-patterns](rules/elixir-patterns.md) -- `with` chains, pipes, pattern matching in function heads
- [typescript-zod](rules/typescript-zod.md) -- Zod schemas, discriminated unions, safeParse
- [typescript-patterns](rules/typescript-patterns.md) -- Functional patterns, strict mode, error handling
- [go-testing](rules/go-testing.md) -- Table-driven tests, `t.Run`, `t.Helper()`
- [rust-patterns](rules/rust-patterns.md) -- Builder pattern, derive traits, clippy, iterators
- [c-patterns](rules/c-patterns.md) -- Memory ownership, const correctness, error codes, string safety
- [zig-patterns](rules/zig-patterns.md) -- Error unions, comptime generics, allocators, C interop, build.zig
- [python-cli](rules/python-cli.md) -- Typer scaffolding, pydantic models, pathlib, pytest
- [lua-modules](rules/lua-modules.md) -- Module pattern, metatables, LuaLS annotations
- [shell-patterns](rules/shell-patterns.md) -- Traps, getopts, `[[ ]]`, quoting, `set -euo pipefail`

### MEDIUM

- [elixir-testing](rules/elixir-testing.md) -- ExUnit patterns, real dependencies over mocks
- [python-patterns](rules/python-patterns.md) -- Type hints, f-strings, async, comprehensions
- [chezmoi-templates](rules/chezmoi-templates.md) -- Whitespace trimming, conditionals, run_onchange scripts

## See also

- `claude-api` -- for Anthropic SDK patterns in any of these languages
- `raxol` -- for Raxol TUI framework patterns (Elixir)
- `noir` -- for ZK domain concepts (this skill only covers Noir syntax)
- `native-code` -- for NIF/SIMD domain (this skill only covers C and Zig syntax)
- `design-ux` -- for UI/UX design decisions that produce components

## Source & license

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

- **Author:** [DROOdotFOO](https://github.com/DROOdotFOO)
- **Source:** [DROOdotFOO/agent-skills](https://github.com/DROOdotFOO/agent-skills)
- **License:** MIT
- **Homepage:** https://droo.foo/

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:** yes
- **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-droodotfoo-agent-skills-droo-stack
- Seller: https://agentstack.voostack.com/s/droodotfoo
- 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%.