mo-code: Skill for Codex

.codex/skills/senior-architect/SKILL.md

senior-architect is a skill for Codex from mortis-cube/mo-code. It costs 94 tokens per session (2,383 once invoked), scanned B, a copy of senior-architect, MIT.

A set of tools and guidance for designing and reviewing software architecture. It can create architecture diagrams, inspect dependencies, and assess choices such as a monolith versus separate services or one database versus another.

In plain words
What is it for?
Use it to generate Mermaid, PlantUML, or text diagrams, analyse project dependencies, assess a system design, and record architecture decisions.
Why use it?
It helps turn a large or unclear codebase into a visible structure and supports technical decisions with documented reasoning. An architecture diagram shows components and their relationships for planning or discussion.

Skill for Codex

Written for Codex: installed under .codex/.

This is mortis-cube/mo-code's own configuration. It tells Codex how to work on mo-code itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mo-code configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mortis-cube/mo-code. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mortis-cube/mo-code/main/.codex/skills/senior-architect/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/mortis-cube/mo-code

Made for: 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 senior-architect

README.md
[![agentmods](https://agentmods.dev/badge/skills/mortis-cube/mo-code/senior-architect/github.svg)](https://agentmods.dev/skills/mortis-cube/mo-code/senior-architect)
Your own site
<a href="https://agentmods.dev/skills/mortis-cube/mo-code/senior-architect"><img src="https://agentmods.dev/badge/skills/mortis-cube/mo-code/senior-architect/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 senior-architect

Your own site · 80×15
<a href="https://agentmods.dev/skills/mortis-cube/mo-code/senior-architect"><img src="https://agentmods.dev/badge/skills/mortis-cube/mo-code/senior-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,383 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00094 $0.02383
Opus 5.5 $0.00038 $0.00953
Sonnet 5.5 $0.00019 $0.00477
Haiku 4.5 $0.00009 $0.00238

Measured yesterday against content hash 559d402c3615, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

senior-architect scanned grade B with 1 finding 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 yesterday.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/architecture_diagram_generator.py, scripts/dependency_analyzer.py, scripts/project_architect.py), 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.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

1. Run any script with `--help` for usage information
Origin

This is a copy

100% identical to senior-architect — 2 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.

.codex/skills/senior-architect/SKILL.md · 344 lines

How it starts

The opening of the file, as written. The whole thing — 344 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Senior Architect

Architecture design and analysis tools for making informed technical decisions.

Table of Contents


Quick Start

# Generate architecture diagram from project
python scripts/architecture_diagram_generator.py ./my-project --format mermaid

# Analyze dependencies for issues
python scripts/dependency_analyzer.py ./my-project --output json

# Get architecture assessment
python scripts/project_architect.py ./my-project --verbose

Tools Overview

1. Architecture Diagram Generator

Generates architecture diagrams from project structure in multiple formats.

Solves: "I need to visualize my system architecture for documentation or team discussion"

Input: Project directory path Output: Diagram code (Mermaid, PlantUML, or ASCII)

Supported diagram types:

  • component - Shows modules and their relationships
  • layer - Shows architectural layers (presentation, business, data)
  • deployment - Shows deployment topology

Usage:

# Mermaid format (default)
python scripts/architecture_diagram_generator.py ./project --format mermaid --type component

# PlantUML format
python scripts/architecture_diagram_generator.py ./project --format plantuml --type layer

# ASCII format (terminal-friendly)
python scripts/architecture_diagram_generator.py ./project --format ascii

# Save to file
python scripts/architecture_diagram_generator.py ./project -o architecture.md

Read the full file on GitHub · 344 lines

Files

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.

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. yesterday First seen · 344 lines · 94 tokens per session scan B 559d402c3615

Subscribe to this mod's changes

senior-architect is a skill published in the GitHub repository mortis-cube/mo-code (85 stars, last pushed 12d ago), licensed MIT. It adds 94 tokens to every session and 2,383 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it B with 1 finding (unrestricted tool access). It is 100% identical to senior-architect, differing in 2 lines, and is treated as a copy.

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