# Fill

> Generate consensus layer test fixtures Use when this capability is needed.

- Skill: `tomevault-io/fill` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/fill`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/fill/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/fill

---


# /fill - Generate Test Fixtures

Run the test filler to generate consensus layer test fixtures.

## Default Usage

```bash
uvx tox -e fill
```

## Options

Pass additional arguments after `--`:

- `/fill -- --scheme=prod` - Use production signature scheme (slower)
- `/fill -- --fork=Electra` - Generate for Electra fork
- `/fill -- path/to/test.py` - Generate fixtures for specific test file

## What It Does

Runs `fill --fork=Devnet --clean -n auto` via tox, which:

1. Discovers tests in `tests/consensus/`
2. Executes spec tests to generate fixtures
3. Outputs JSON fixtures to `fixtures/consensus/`

---
> Converted and distributed by [TomeVault](https://tomevault.io/claim/leanethereum) — claim your Tome and manage your conversions.
<!-- tomevault:4.0:skill_md:2026-04-11 -->