ETERNAL FORGE Forged in the Cross • Alive in the Resurrection

Agent skills
forged for craft.

A complete, self-hosting harness of high-quality skills and process for building reliable, long-running AI coding agents that ship production code across many sessions.

Used on real production systems (ferro-wave, ferro-wg)
The CrossR Creed

We don’t prompt. We forge.

Every skill in this repository is written with the same ruthless standards we apply to production Rust: functional purity, stratified design, zero technical debt, and handover-clean artifacts.

The harness exists so that agents can do serious work across days and weeks without losing the thread — stacked PRs, multi-tier verification, self-critique, and HTML as the primary human interface.

The Process

What the forge produces

Not a collection of prompts. A complete, battle-tested system for long-running agent teams.

Curated Skills

11+ production-grade skills following the official agentskills.io spec. Every one reviewed by reviewer + tester + architect agents.

Full Harness

HARNESS-SPEC.md defines the mandatory artifacts, rituals, stacked PR discipline, and multi-tier verification that turns stateless sessions into reliable agents.

Stacked PRs

Every large effort decomposed into tiny, reviewable PRs (<10 min deep review). Proven on a 16-PR security-critical authz chain in production.

HTML First-Class

For any human-facing artifact — specs, reviews, plans, dashboards — we generate beautiful self-contained Tailwind HTML. The unreasonable effectiveness of HTML.

GAN Verification

Mechanical Generator → Adversary loop using reusable agent definitions. Reviewer, Tester, and Architect personas run on every significant change.

The Library

Skills forged in production

Browse the full catalog in the docs
code-writer Foundation
Grokking Simplicity + SICP philosophy for all code
rust-code-writer Rust Core
Idiomatic, pure, stratified, flat combinator Rust
rust-code-reviewer Quality
Ruthless enforcement of every rule in the stack
rust-code-tester Quality
Obsessive coverage, property tests, error paths
rust-architect Architecture
Torvalds-style system-level gatekeeper
rust-axum-backend Backend
Layered Axum with extractors, policy gates, clean errors
rust-frontend Frontend
Leptos + WASM + Polars with anti-slop guidance
rust-tui TUI
ratatui Component + Action + two-phase dispatch (ferro-wg)
rust-errors Backend
thiserror layered errors, never inline map_err
agent-harness Process
The full harness spec + stacked PR + GAN patterns
All skills live in .agents/skills/ following the official agentskills.io specification.
One Command

Bootstrap the full harness in any project.

The harness-bootstrap script emits AGENTS.md, features.json, progress.md, justfile, the complete .agents/ structure, and everything else required by the spec.

# Clone and bootstrap a new project
git clone https://github.com/scull7/crossr-skills.git
./crossr-skills/scripts/harness-bootstrap /path/to/your-project
# Then in your new project
just harness-validate
# Run the full GAN review loop on every change
The bootstrap itself is part of the harness. It produces the exact artifacts that have powered real 16+ PR security and TUI projects.