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 mickeyyaya/refactoring-skills --skill refactoring-decision-matrixgit clone --depth 1 https://github.com/mickeyyaya/refactoring-skillsWrote 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/mickeyyaya/refactoring-skills/refactoring-decision-matrix)<a href="https://agentmods.dev/skills/mickeyyaya/refactoring-skills/refactoring-decision-matrix"><img src="https://agentmods.dev/badge/skills/mickeyyaya/refactoring-skills/refactoring-decision-matrix/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/mickeyyaya/refactoring-skills/refactoring-decision-matrix"><img src="https://agentmods.dev/badge/skills/mickeyyaya/refactoring-skills/refactoring-decision-matrix.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 | $0.00050 | $0.02343 |
| Opus 5 | $0.00025 | $0.01171 |
| Sonnet 5 | $0.00010 | $0.00469 |
| Haiku 4.5 | $0.00005 | $0.00234 |
Grade A, and why
refactoring-decision-matrix 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prerequisite: Run detect-code-smells first to identify issues, then use this matrix to select the fix.
Refactoring Decision Matrix
How to Use
- Identify the smell from
detect-code-smells - Find the smell row in the matrix below
- Select fix based on context; check difficulty and risk
- Apply the "When NOT to Refactor" rules before starting
Decision Matrix: All 23 Smells
Bloaters (5 smells)
| Smell | Primary Fix | Primary Skill | Secondary Fix | Secondary Skill | Difficulty | Risk |
|---|---|---|---|---|---|---|
| Long Method | Extract Method | refactor-composing-methods |
Replace Method with Method Object | refactor-composing-methods |
Easy | Low |
| Large Class | Extract Class | refactor-moving-features |
Extract Subclass | refactor-generalization |
Medium | Medium |
| Primitive Obsession | Replace Data Value with Object | refactor-organizing-data |
Replace Type Code with State/Strategy | refactor-organizing-data |
Medium | Medium |
| Long Parameter List | Introduce Parameter Object | refactor-simplifying-method-calls |
Preserve Whole Object | refactor-simplifying-method-calls |
Easy | Low |
| Data Clumps | Extract Class | refactor-organizing-data |
Introduce Parameter Object | refactor-simplifying-method-calls |
Easy | Low |
Object-Orientation Abusers (4 smells)
| Smell | Primary Fix | Primary Skill | Secondary Fix | Secondary Skill | Difficulty | Risk |
|---|---|---|---|---|---|---|
| Switch Statements | Replace Conditional with Polymorphism | refactor-simplifying-conditionals |
Replace Type Code with State/Strategy | refactor-organizing-data |
Medium | Medium |
| Temporary Field | Extract Class (with Null Object) | refactor-organizing-data |
Introduce Null Object | refactor-organizing-data |
Medium | Medium |
| Refused Bequest | Replace Inheritance with Delegation | refactor-generalization |
Extract Superclass (restructure hierarchy) | refactor-generalization |
Hard | High |
| Alternative Classes with Different Interfaces | Rename Method + Extract Superclass | refactor-generalization |
Move Method to align interfaces | refactor-moving-features |
Medium | Medium |
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.
- 10d ago First seen · 191 lines · 50 tokens per session scan A c9eb552e6483
refactoring-decision-matrix is a skill published in the GitHub repository mickeyyaya/refactoring-skills (6 stars, last pushed 5mo ago), licensed MIT. It adds 50 tokens to every session and 2,343 once invoked, about $0.0003 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.
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