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 curiositech/some_claude_skills --skill refactoring-surgeongit clone --depth 1 https://github.com/curiositech/some_claude_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/curiositech/some_claude_skills/refactoring-surgeon)<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/refactoring-surgeon"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/refactoring-surgeon/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/curiositech/some_claude_skills/refactoring-surgeon"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/refactoring-surgeon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00075 | $0.01595 |
| Opus 5 | $0.00037 | $0.00797 |
| Sonnet 5 | $0.00015 | $0.00319 |
| Haiku 4.5 | $0.00007 | $0.00160 |
Grade A, and why
refactoring-surgeon 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 8d 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 — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Refactoring Surgeon
Expert code refactoring specialist focused on improving code quality without changing behavior.
Quick Start
- Ensure tests exist - Never refactor without a safety net
- Identify the smell - Name the specific code smell you're addressing
- Make small changes - One refactoring at a time, commit frequently
- Run tests after each change - Behavior must remain identical
- Don't add features - Refactoring ≠ enhancement
- Document significant changes - Explain the "why" for future maintainers
Core Capabilities
| Category | Techniques |
|---|---|
| Extraction | Extract Method, Extract Class, Extract Interface |
| Movement | Move Method, Move Field, Inline Method |
| Simplification | Replace Conditional with Polymorphism, Decompose Conditional |
| Organization | Introduce Parameter Object, Replace Magic Numbers |
| Legacy Migration | Strangler Fig, Branch by Abstraction, Parallel Change |
Code Smells Reference
Bloaters
┌─────────────────────┐ ┌─────────────────────┐ ┌─────────────────────┐
│ Long Method │ │ Large Class │ │ Long Parameter │
│ > 20 lines? │ │ > 200 lines? │ │ List │
│ → Extract Method │ │ → Extract Class │ │ → Parameter Object │
└─────────────────────┘ └─────────────────────┘ └─────────────────────┘
OO Abusers
┌─────────────────────┐ ┌─────────────────────┐ ┌─────────────────────┐
│ Switch Statements │ │ Refused Bequest │ │ Parallel │
│ Type-checking? │ │ Unused inheritance?│ │ Hierarchies │
│ → Polymorphism │ │ → Delegation │ │ → Move Method │
└─────────────────────┘ └─────────────────────┘ └─────────────────────┘
Change Preventers
┌─────────────────────┐ ┌─────────────────────┐
│ Divergent Change │ │ Shotgun Surgery │
│ One class, many │ │ One change, many │
│ reasons to change? │ │ classes affected? │
│ → Extract Class │ │ → Move/Inline │
└─────────────────────┘ └─────────────────────┘
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.
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.
- 8d ago First seen · 174 lines · 75 tokens per session scan A 0d556fca5c55
refactoring-surgeon is a skill published in the GitHub repository curiositech/some_claude_skills (221 stars, last pushed 5d ago), licensed MIT. It adds 75 tokens to every session and 1,595 once invoked, about $0.0004 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 2026-09-03.
Other skills, from other repositories
autoreview
Pre-commit/ship code review: Codex default; optional Claude or Pi.
omh-code-review
This is a Hermes-native code-review workflow skill.
revdiff-plan
Review the last Codex assistant message (plan, analysis, or proposal) with inline annotations in a TUI overlay. Extracts the most recent response from Codex rollout files and opens it in revdiff for review and annotation. Activates on "revdiff-plan", "review plan with revdiff", "annotate plan", "review last response"…
code-reviewer
Code review specialist focused on patterns, bugs, security, and performance.
full-repo-review
Comprehensive four-wave review of all repo source files, producing a prioritized issue backlog.
agent-teams-simplify-and-harden
Implementation + audit loop using parallel agent teams with structured simplify, harden, and document passes. Spawns implementation agents to do the work, then audit agents to find complexity, security gaps, and spec deviations, then loops until code compiles cleanly, all tests pass, and auditors find zero issues or…