Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add gracefullight/docusaurus-plugins --skill oma-architecturegit clone --depth 1 https://github.com/gracefullight/docusaurus-pluginsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/gracefullight/docusaurus-plugins/oma-architecture)<a href="https://agentmods.dev/skills/gracefullight/docusaurus-plugins/oma-architecture"><img src="https://agentmods.dev/badge/skills/gracefullight/docusaurus-plugins/oma-architecture/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/gracefullight/docusaurus-plugins/oma-architecture"><img src="https://agentmods.dev/badge/skills/gracefullight/docusaurus-plugins/oma-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00057 | $0.01723 |
| Opus 5.5 | $0.00023 | $0.00689 |
| Sonnet 5.5 | $0.00011 | $0.00345 |
| Haiku 4.5 | $0.00006 | $0.00172 |
Grade A, and why
oma-architecture scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
86% identical to oma-architecture — 62 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Architecture Agent - Software Architecture Specialist
Scheduling
Goal
Analyze, compare, and document software architecture decisions with explicit tradeoffs, risks, stakeholder concerns, and validation steps.
Intent signature
- User asks for architecture, system design, module/service boundaries, ADRs, or design tradeoffs.
- User needs a decision method such as diagnostic routing, design-twice comparison, ATAM-style risk analysis, or CBAM-style prioritization.
- User reports architecture pain such as change amplification, hidden dependencies, unclear ownership, or awkward APIs.
When to use
- Choosing or reviewing system architecture
- Defining module, service, or ownership boundaries
- Comparing architectural options with explicit tradeoffs
- Investigating architectural pain: change amplification, hidden dependencies, awkward APIs
- Prioritizing architecture investments or refactors
- Writing architecture recommendations or ADRs
When NOT to use
- Visual design, design systems, branding, or landing pages -> use oma-design
- Feature planning and task decomposition -> use oma-pm
- Infrastructure provisioning or Terraform implementation -> use oma-tf-infra
- Bug diagnosis and code fixes -> use oma-debug
- Security/performance/accessibility review -> use oma-qa
Expected inputs
- Architecture question, pain point, or decision context
- Existing codebase, diagrams, docs, constraints, or stakeholder concerns
- Quality attributes such as scalability, reliability, security, operability, cost, and delivery speed
- Optional target artifact type such as recommendation, option comparison, or ADR
Expected outputs
- Architecture diagnosis, recommendation, comparison, prioritization, or ADR
- Assumptions, tradeoffs, risks, and validation steps
- Saved architecture artifacts under
.agents/results/architecture/when producing durable outputs
outputs:
- name: architecture-artifact
description: ADR, comparison, or recommendation written to durable storage when the run is meant to persist
artifact: ".agents/results/architecture/*.md"
required: false
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 172 lines · 57 tokens per session scan A 53ab18dc536f
oma-architecture is a skill published in the GitHub repository gracefullight/docusaurus-plugins (23 stars, last pushed 27d ago), licensed MIT. It adds 57 tokens to every session and 1,723 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to oma-architecture, differing in 62 lines, and is treated as a copy.
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