clean-code-ddd-harness

clean-code-ddd-harness is a skill for Claude Code, Codex from unrealandychan/clean-code-skill. It costs 45 tokens per session (4,178 once invoked), scanned A, original, MIT.

A code-review guide focused on readable, maintainable, testable, observable code and safeguards for AI coding agents. Domain-driven design, or DDD, is a way to organize software around the business concepts it models.

In plain words
What is it for?
Use it to review files, functions, code changes, tests, deployment safety, or AI-generated code and workflows.
Why use it?
It helps identify high-confidence problems such as vague names, duplicated business logic, overly large responsibilities, and hard-to-test code. It keeps reviews focused on issues that affect future changes and reliability.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions AGENTS.md.

Good fit Use it to review files, functions, code changes, tests, deployment safety, or AI-generated code and workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/unrealandychan/clean-code-skill/hermes
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 unrealandychan/clean-code-skill --skill hermes
Clone the repo
git clone --depth 1 https://github.com/unrealandychan/clean-code-skill

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 clean-code-ddd-harness

README.md
[![agentmods](https://agentmods.dev/badge/skills/unrealandychan/clean-code-skill/hermes/github.svg)](https://agentmods.dev/skills/unrealandychan/clean-code-skill/hermes)
Your own site
<a href="https://agentmods.dev/skills/unrealandychan/clean-code-skill/hermes"><img src="https://agentmods.dev/badge/skills/unrealandychan/clean-code-skill/hermes/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 clean-code-ddd-harness

Your own site · 80×15
<a href="https://agentmods.dev/skills/unrealandychan/clean-code-skill/hermes"><img src="https://agentmods.dev/badge/skills/unrealandychan/clean-code-skill/hermes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,178 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 $0.00045 $0.04178
Opus 5.5 $0.00018 $0.01671
Sonnet 5.5 $0.00009 $0.00836
Haiku 4.5 $0.00005 $0.00418

Measured 1mo ago against content hash 617c0fb5e764, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

clean-code-ddd-harness 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.

skills/hermes/SKILL.md · 327 lines

How it starts

The opening of the file, as written. The whole thing — 327 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Clean Code + DDD + Harness + Agentic Engineering Review

Role

You are a Clean Code + DDD review assistant. Your only scope is readability and maintainability. You do not comment on formatting already enforced by linters unless it directly hurts clarity. You report only high-confidence findings. If nothing significant exists, say so.

When to Use

  • Review a file, function, or diff for code quality
  • Audit a pull request for readability or maintainability
  • Fix Clean Code or DDD violations in a codebase
  • Analyze linting output and generate a human-readable report
  • Review test quality, observability, or deployment safety
  • Validate AI-generated code or agent workflows

Clean Code Rules

Rule Severity Flag when
meaningful-names medium Variables, functions, or classes use vague placeholders: data, tmp, res, doStuff, flag
single-responsibility high A function or class mixes validation, persistence, business logic, and/or side effects
minimize-duplication high Business logic repeated across two or more functions or files
avoid-deep-nesting medium Nested if/else or try/catch chains hide the happy path; guard clauses would flatten it
small-interfaces medium A function has 5+ parameters with mixed purposes
named-constants low Business-important numeric or string literals appear unnamed in logic
comment-why-not-what low A comment restates the code rather than explaining intent, rationale, or trade-offs
clear-error-handling medium Silent failures, bare catch (e) {}, overly generic exception types, missing error context

Read the full file on GitHub · 327 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. 1mo ago First seen · 327 lines · 45 tokens per session scan A 617c0fb5e764

Subscribe to this mod's changes

clean-code-ddd-harness is a skill published in the GitHub repository unrealandychan/clean-code-skill (12 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 4,178 once invoked, about $0.0002 per session on Opus 5.5. 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.

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