architecture-decomposition

architecture-decomposition is a skill for Claude Code, Codex from paruff/uFawkesAI. It costs 27 tokens per session (598 once invoked), scanned A, original, MIT.

A method for splitting a software specification into components, data flows, outside services, and clear responsibility boundaries.

In plain words
What is it for?
Use it to map application parts, databases, APIs, message queues, trust boundaries, and how data moves between them.
Why use it?
It makes the system easier to understand and helps prevent components from becoming too tightly connected or responsible for everything.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it to map application parts, databases, APIs, message queues, trust boundaries, and how data moves between them.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/paruff/ufawkesai/architecture-decomposition
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.

Any agent
npx skills add paruff/uFawkesAI --skill architecture-decomposition
Clone the repo
git clone --depth 1 https://github.com/paruff/uFawkesAI

Made for: Claude Code, Codex.

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 architecture-decomposition

README.md
[![agentmods](https://agentmods.dev/badge/skills/paruff/ufawkesai/architecture-decomposition/github.svg)](https://agentmods.dev/skills/paruff/ufawkesai/architecture-decomposition)
Your own site
<a href="https://agentmods.dev/skills/paruff/ufawkesai/architecture-decomposition"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/architecture-decomposition/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 architecture-decomposition

Your own site · 80×15
<a href="https://agentmods.dev/skills/paruff/ufawkesai/architecture-decomposition"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/architecture-decomposition.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 598 The whole file, excluding the scripts and references it only reads on demand.
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.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00027 $0.00598
Opus 5 $0.00014 $0.00299
Sonnet 5 $0.00005 $0.00120
Haiku 4.5 $0.00003 $0.00060

Measured 9d ago against content hash db753ffbcd96, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

architecture-decomposition 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 9d 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.

.agents/skills/design/architecture-decomposition/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Architecture Decomposition

Load trigger: "load architecture-decomposition skill" > DORA: Cap 3 (AI-Accessible Internal Data) Token cost: Low

Purpose

Break the specification into logical architectural components.

Responsibilities

  • Identify major system components
  • Identify data flows between components
  • Identify external dependencies
  • Identify boundaries and responsibilities

Inputs

  • specification.md

Outputs

  • architecture.json

Decomposition Rules

Component Identification

  • Each component has a single, clear responsibility
  • Components are loosely coupled
  • Components communicate through defined interfaces
  • No god components (doing everything)

Data Flow

  • Data flows are unidirectional where possible
  • Synchronous and asynchronous flows identified
  • Data transformation points identified
  • Error flows documented

External Dependencies

  • External APIs identified
  • Databases identified
  • Message queues identified
  • Third-party services identified

Boundaries

  • Layer boundaries defined (UI, Service, Data)
  • Trust boundaries identified
  • Integration boundaries identified

Architecture Patterns

Pattern Use When
Monolith Simple domain, small team, fast iteration
Microservices Complex domain, independent scaling, team autonomy
Event-Driven Async workflows, loose coupling, audit trail
CQRS Read/write optimization, complex queries
Serverless Variable load, event-driven, minimal ops

Output Format

{
  "components": [
    {
      "name": "Component Name",
      "purpose": "What it does",
      "responsibility": "What it owns",
      "layer": "ui | service | data | infrastructure",
      "dependencies": ["Other Component"],
      "external_dependencies": ["External API"]
    }
  ],
  "data_flows": [
    {
      "from": "Component A",
      "to": "Component B",
      "type": "sync | async",
      "data": "What is transferred"
    }
  ],
  "boundaries": [
    {
      "type": "layer | trust | integration",
      "description": "Boundary description"
    }
  ]
}

Read the full file on GitHub · 110 lines

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. 9d ago First seen · 110 lines · 27 tokens per session scan A db753ffbcd96

Subscribe to this mod's changes

architecture-decomposition is a skill published in the GitHub repository paruff/uFawkesAI (2 stars, last pushed 17d ago), licensed MIT. It adds 27 tokens to every session and 598 once invoked, about $0.0001 per session on Opus 5. 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 2026-08-31.

Related

Other skills, from other repositories

planning-with-files

Persistent file-based planning for multi-step AI-agent work. Keeps taskplan.md, findings.md, and progress.md on disk; lifecycle hooks inject selected project planning context. Automatic recovery reads project planning files only. Explicit session-catchup.py --metadata reads same-project local agent session records and…

mxyhi/ok-skills · 117 tokens

infrastructure-overview

Top-level skill for the research template infrastructure layer. Use in Cursor, Claude Code, or similar agents when editing or importing anything under infrastructure/, understanding the two-layer architecture, or wiring build/validation/rendering/publishing. Covers module discovery, import patterns, thin…

docxology/template · 80 tokens

infrastructure-validation

Skill for the validation infrastructure module providing PDF validation, markdown validation, output integrity checks, link verification, documentation audits, issue categorization, and repository scanning. Use when validating research outputs, checking document quality, running audits, or verifying cross-references.

docxology/template · 54 tokens

infrastructure-llm

Skill for the LLM infrastructure module providing local Large Language Model integration via Ollama. Covers client initialization, prompt templates, output validation, manuscript review generation, conversation context, and CLI usage. Use when querying LLMs, generating manuscript reviews, validating LLM outputs, or…

docxology/template · 66 tokens

infrastructure-tools

Skill for the tools module — discovery, validation, scope, and private-sidecar symlink sync for the top-level tools/ directory (executable entry points such as scripts, skills, and agents stored as passive manifests with scripts/ directories). Use when discovering tools (discovertools), resolving a tool path…

docxology/template · 168 tokens

template-academic-paper

Template-native manuscript planning, outline, drafting, revision, formatting, citation check, and AI-use disclosure routing. USE WHEN the user asks to write, outline, revise, format, or prepare a paper inside the Research Project Template.

docxology/template · 52 tokens