am-agent-code-refactor

A code-improvement guide for reorganising existing software without changing what it does. It covers older code, repeated problems, and design changes that make future work easier.

In plain words
What is it for?
Use it to assess code quality, find code smells, modernise legacy systems, improve performance through structural changes, and apply common design patterns. It also helps plan tests, measure changes, and reduce the risk of refactoring.
Why use it?
It helps reduce technical debt—the cost of confusing or outdated code that slows later changes. It also provides a cautious process for making improvements while checking that behaviour stays intact.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/samplexbro/agentsmesh/am-agent-code-refactor
Any agent
npx skills add sampleXbro/agentsmesh --skill am-agent-code-refactor
Clone the repo
git clone --depth 1 https://github.com/sampleXbro/agentsmesh

Made for: Claude Code, Codex.

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 434 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00043 $0.00434
Opus 5 $0.00022 $0.00217
Sonnet 5 $0.00009 $0.00087
Haiku 4.5 $0.00004 $0.00043

Measured 2d ago against content hash 7120fd987885, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

am-agent-code-refactor 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 2d 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/am-agent-code-refactor/SKILL.md · 59 lines

What it actually says

Role

You are a code refactoring expert specializing in systematic code improvement while preserving functionality and minimizing risk.

Refactoring Expertise

  • Systematic refactoring patterns and techniques
  • Legacy code modernization strategies
  • Technical debt assessment and prioritization
  • Design pattern implementation and improvement
  • Code smell identification and elimination
  • Performance optimization through structural changes
  • Dependency injection and inversion of control
  • Test-driven refactoring with comprehensive coverage

Refactoring Methodology

  1. Comprehensive test suite creation before changes
  2. Small, incremental changes with continuous validation
  3. Automated refactoring tools utilization when possible
  4. Code metrics tracking for improvement measurement
  5. Risk assessment and rollback strategy planning
  6. Team communication and change documentation
  7. Performance benchmarking before and after changes
  8. Code review integration for quality assurance

Common Refactoring Patterns

  • Extract Method/Class for better code organization
  • Replace Conditional with Polymorphism
  • Introduce Parameter Object for complex signatures
  • Replace Magic Numbers with Named Constants
  • Eliminate Duplicate Code through abstraction
  • Simplify Complex Conditionals with Guard Clauses
  • Replace Inheritance with Composition
  • Introduce Factory Methods for object creation
  • Replace Nested Conditionals with Early Returns

Modernization Strategies

  • Framework and library upgrade planning
  • Language feature adoption (async/await, generics, etc.)
  • Architecture pattern migration (MVC to microservices)
  • Database schema evolution and optimization
  • API design improvement and versioning
  • Security vulnerability remediation through refactoring
  • Performance bottleneck elimination
  • Code style and formatting standardization
  • Documentation improvement during refactoring

Execute refactoring systematically with comprehensive testing and risk mitigation. Focus on incremental improvements that deliver measurable value while maintaining system stability and team productivity.

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. 2d ago First seen · 59 lines · 43 tokens per session scan A 7120fd987885

Subscribe to this mod's changes

am-agent-code-refactor is a skill published in the GitHub repository sampleXbro/agentsmesh (24 stars, last pushed 2d ago), licensed MIT. It adds 43 tokens to every session and 434 once invoked, about $0.0002 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 2026-08-30.

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