# Hyper Tdd

> Use when about to write or modify behavior-bearing code — functions, business logic, bug fixes — before writing any production code. Also when the user invokes /hyperclaude:hyper-tdd. Forces a failing test first so you watch it fail for the right reason.

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

## Install

```sh
agentstack add skill-zeikar-hyperclaude-hyper-tdd
```

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

## About

# hyper-tdd

Test-driven discipline tailored to this author's preferences.

## The loop

1. **Write the failing test first.** Name the behavior, not the implementation. The test should compile/import but fail because the behavior doesn't exist yet.
2. **Run it. Confirm it fails for the right reason.** "Cannot find function" is fine. "ReferenceError because of typo in test" is not — fix the test.
3. **Write the minimum code to make it pass.** Resist scope creep. No "while I'm here" edits.
4. **Run it. Confirm it passes.**
5. **Commit.** One behavior, one commit. Commit messages describe the behavior, not the code.
6. **Refactor if there's a clear smell.** Tests must still pass after.

## Skip TDD when

- Touching only documentation, comments, or formatting.
- Renaming a symbol (an LSP/grep operation, not a behavior change).
- One-shot migration scripts that run once and get deleted.
- Config-only changes (e.g., updating a `.gitignore`).

## What "minimum" means here

Implement only what the current test requires. If you need a helper, add the simplest version. Do not pre-build for tests you might write later — write that test first, then the helper.

## What good test names look like

- ✅ `slugify drops non-ASCII characters`
- ✅ `cli --dry-run prints JSON without spawning codex`
- ❌ `test_slugify` (says nothing)
- ❌ `slugify works correctly` (vague)

## Source & license

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

- **Author:** [zeikar](https://github.com/zeikar)
- **Source:** [zeikar/hyperclaude](https://github.com/zeikar/hyperclaude)
- **License:** MIT
- **Homepage:** http://zeikar.dev/hyperclaude/

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-zeikar-hyperclaude-hyper-tdd
- Seller: https://agentstack.voostack.com/s/zeikar
- 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%.