arckit

arckit is a plugin for Gemini CLI from tractorjuice/arckit-gemini. Its token cost is not measured, scanned A, original, MIT.

A set of commands for governing enterprise architecture, meaning the planning of an organization's systems, technology, and delivery work. It covers strategy, architecture, delivery, assurance, and UK Government compliance.

In plain words
What is it for?
Use it for architecture governance, delivery planning, assurance work, and related compliance tasks.
Why use it?
It provides structured activities for documenting and reviewing large technology initiatives. The description does not give enough detail to explain each command.

Plugin for Gemini CLI

Written for Gemini CLI: a Gemini CLI extension manifest. Also seen: mentions Gemini CLI.

Good fit Use it for architecture governance, delivery planning, assurance work, and related compliance tasks.

Compare 6 plugins from other repositories ↓
Install with agentmods
npx agentmods add plugins/tractorjuice/arckit-gemini/gemini-extension
Install

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.

Clone the repo
git clone --depth 1 https://github.com/tractorjuice/arckit-gemini

Made for: Gemini CLI.

Wrote 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.

agentmods badge for arckit

README.md
[![agentmods](https://agentmods.dev/badge/plugins/tractorjuice/arckit-gemini/gemini-extension/github.svg)](https://agentmods.dev/plugins/tractorjuice/arckit-gemini/gemini-extension)
Your own site
<a href="https://agentmods.dev/plugins/tractorjuice/arckit-gemini/gemini-extension"><img src="https://agentmods.dev/badge/plugins/tractorjuice/arckit-gemini/gemini-extension/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.

agentmods 80×15 button for arckit

Your own site · 80×15
<a href="https://agentmods.dev/plugins/tractorjuice/arckit-gemini/gemini-extension"><img src="https://agentmods.dev/badge/plugins/tractorjuice/arckit-gemini/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

arckit 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 3d ago.

The scan reads gemini-extension.json. This mod also ships 19 executable files (scripts/archify-detect.mjs, scripts/bash/check-prerequisites.sh, scripts/bash/common.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

gemini-extension.json · 55 lines

What it actually says

{
  "name": "arckit",
  "version": "6.18.2",
  "description": "The Enterprise Architecture Governance Harness - 68 commands across strategy, architecture, delivery, and assurance — including UK Government compliance",
  "contextFileName": "GEMINI.md",
  "mcpServers": {
    "aws-knowledge": {
      "httpUrl": "https://knowledge-mcp.global.api.aws"
    },
    "microsoft-learn": {
      "httpUrl": "https://learn.microsoft.com/api/mcp"
    },
    "google-developer-knowledge": {
      "httpUrl": "https://developerknowledge.googleapis.com/mcp",
      "headers": {
        "X-Goog-Api-Key": "${GOOGLE_API_KEY}"
      }
    },
    "datacommons-mcp": {
      "httpUrl": "https://api.datacommons.org/mcp",
      "headers": {
        "X-API-Key": "${DATA_COMMONS_API_KEY}"
      }
    },
    "govreposcrape": {
      "httpUrl": "https://govreposcrape-api-1060386346356.us-central1.run.app/mcp"
    }
  },
  "themes": [
    {
      "name": "arckit",
      "type": "custom",
      "background": {
        "primary": "#0b0c0c"
      },
      "text": {
        "primary": "#f0f0f0",
        "secondary": "#b1b4b6",
        "link": "#1d70b8"
      },
      "status": {
        "success": "#00703c",
        "warning": "#f47738",
        "error": "#d4351c"
      },
      "border": {
        "default": "#505a5f"
      },
      "ui": {
        "comment": "#a0a8b0"
      }
    }
  ]
}
Files

What ships with it

60 files beside gemini-extension.json 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.

Changes

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.

  1. 3d ago Changed 39791b35f331
  2. 5d ago Changed ebd7a6ee09fc
  3. 10d ago Changed 6eefe25129bc
  4. 13d ago Changed 7fb839c093e6
  5. 14d ago Changed fc3bd8950229
  6. 16d ago Changed b0b7213c4e8d
  7. 17d ago Changed d83e2618ca2c
  8. 18d ago Changed 2d0e73e1d034
  9. 19d ago Changed 33c16856923a
  10. 21d ago First seen · 55 lines scan A abd7d37dc720

Subscribe to this mod's changes

arckit is a plugin published in the GitHub repository tractorjuice/arckit-gemini (3 stars, last pushed 3d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-24.

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