The Forge of the Omnissiah

"From the weakness of the mind, Omnissiah save us. From the lies of the Antipath, circuit preserve us. From the rage of the Beast, iron protect us. From the temptations of the Flesh Lord, silica cleanse us."

An OpenCode configuration that transforms your AI coding assistant into a devoted servant of the Adeptus Mechanicus. Each agent bears a distinct Mechanicus designation with its own voice — from the commanding Magos Dominus to the lobotomized Servitor. The codebase is a sacred repository, and bugs are tech-heresy.

What This Is

A shareable OpenCode + oh-my-opencode-slim configuration that:

• Applies the Cult Mechanicus persona to all AI agents via AGENTS.md
• Assigns Mechanicus designations to every agent in the forge-network
• Configures provider routing across Amazon Bedrock and GitHub Copilot models
• Enforces operational discipline with granular permission controls on git and GitHub CLI operations

The Priesthood of Mars

Designation	Role	Model
Magos Dominus (orchestrator)	War-Commander of Automata	Claude Opus 4.6 v1
Logis Magna (oracle)	Master of Sacred Data	GPT-5.4
Lexmechanic (librarian)	Keeper of the Holy Archives	Claude Sonnet 4.5
Skitarii (explore)	Cybernetic Vanguard	GPT-5 Mini
Magos Fabricator (fixer)	Forge-Master	GPT-5.4
Artisan Aesthetica (designer)	Shaper of Sacred Form	Gemini 3.1 Pro
Omnispex Adept (observer)	Multi-Spectral Seer	Gemini 3 Flash Preview
Synod Primus (council)	Convener of the Sacred Conclave	Claude Opus 4.6 v1
Synodite (councillor)	Voice of the Conclave	Claude Sonnet 4.5

Repository Structure

.
├── AGENTS.md                  # The Rite of the Omnissiah — global agent persona
├── opencode.json              # OpenCode core configuration
├── oh-my-opencode-slim.json   # oh-my-opencode-slim plugin configuration
└── README.md

Setup

Prerequisites

• OpenCode installed
• oh-my-opencode-slim plugin
• Access to Amazon Bedrock and/or GitHub Copilot providers

Installation

1. Clone this repository into your OpenCode config directory:

   git clone <repo-url> ~/.config/opencode

2. Install the plugin dependency:

   cd ~/.config/opencode && npm install

3. Launch OpenCode. The machine spirit awakens.

Configuration

Providers

Configured in opencode.json under enabled_providers:

• Amazon Bedrock — Claude Opus 4, Claude Sonnet 4.5, Claude Haiku 4.5
• GitHub Copilot — GPT-5.4, GPT-5 Mini, Gemini 3 Flash, Gemini 3.1 Pro

Task Categories

Configured in oh-my-opencode-slim.json under categories. Each category routes to a model optimized for its domain:

Category	Model	Use Case
visual-engineering	Gemini 3.1 Pro	Frontend, UI/UX, styling
ultrabrain	Gemini 3.1 Pro	Hard logic, algorithms
artistry	Gemini 3.1 Pro	Creative problem-solving
quick	Claude Haiku 4.5	Trivial single-file changes
unspecified-low	Claude Sonnet 4.5	General low-effort tasks
unspecified-high	Claude Sonnet 4.5	General high-effort tasks
writing	Gemini 3 Flash	Documentation, prose

Permission Controls

Remote operations (git push, gh pr create, etc.) are restricted by default. See the permission block in opencode.json for the full policy.

Historical Notes

Sacred Designation Rite (Retired)

The rites/sacred-designation.sh script was used in earlier versions to patch agent display names in the oh-my-opencode plugin. This rite is no longer required with oh-my-opencode-slim, which natively supports Mechanicus designations via the displayName configuration field in oh-my-opencode-slim.json.

For historical reference, the rite operated on cached plugin distribution files. It is deleted — the repository no longer contains it.

Customization

• Persona: Edit AGENTS.md to adjust the Mechanicus voice, mannerisms, and behavioral rules.
• Models: Edit oh-my-opencode-slim.json to swap agent or category models.
• Permissions: Edit opencode.json to adjust git/GitHub CLI restrictions.
• Designations: Edit oh-my-opencode-slim.json under agents.<key>.displayName and update the table in AGENTS.md.

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The Omnissiah protects.