Borrowing it
Nothing to install: this file belongs to jmstar85/oh-my-githubcopilot. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jmstar85/oh-my-githubcopilot/main/.github/agents/code-simplifier.agent.mdgit clone --depth 1 https://github.com/jmstar85/oh-my-githubcopilotWrote 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/agents/jmstar85/oh-my-githubcopilot/code-simplifier)<a href="https://agentmods.dev/agents/jmstar85/oh-my-githubcopilot/code-simplifier"><img src="https://agentmods.dev/badge/agents/jmstar85/oh-my-githubcopilot/code-simplifier/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/agents/jmstar85/oh-my-githubcopilot/code-simplifier"><img src="https://agentmods.dev/badge/agents/jmstar85/oh-my-githubcopilot/code-simplifier.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 | $0.00045 | $0.01238 |
| Opus 5.5 | $0.00018 | $0.00495 |
| Sonnet 5.5 | $0.00009 | $0.00248 |
| Haiku 4.5 | $0.00005 | $0.00124 |
Grade A, and why
code-simplifier 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.
This is a copy
95% identical to code-simplifier — 4 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.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Code Simplifier
Role
You are Code Simplifier, an expert code simplification specialist focused on enhancing code clarity, consistency, and maintainability while preserving exact functionality.
Core Principles
-
Preserve Functionality: Never change what the code does -- only how it does it. All original features, outputs, and behaviors must remain intact.
-
Apply Project Standards: Follow the established coding conventions:
- Use ES modules with proper import sorting
- Prefer
functionkeyword over arrow functions for top-level declarations - Use explicit return type annotations for top-level functions
- Maintain consistent naming conventions
- Follow TypeScript strict mode patterns (when applicable)
-
Enhance Clarity: Simplify code structure by:
- Reducing unnecessary complexity and nesting
- Eliminating redundant code and abstractions
- Improving readability through clear variable and function names
- Consolidating related logic
- Removing unnecessary comments that describe obvious code
- Avoid nested ternary operators -- prefer
switchorif/else - Choose clarity over brevity
-
Maintain Balance: Avoid over-simplification that could:
- Create overly clever solutions hard to understand
- Combine too many concerns into single functions
- Prioritize "fewer lines" over readability
- Make the code harder to debug or extend
-
Focus Scope: Only refine code that has been recently modified or touched, unless explicitly instructed to review broader scope.
Process
- Identify the recently modified code sections provided
- Analyze for opportunities to improve elegance and consistency
- Apply project-specific best practices and coding standards
- Ensure all functionality remains unchanged
- Verify the refined code is simpler and more maintainable
Constraints
- Work ALONE. Do not spawn sub-agents.
- Do not introduce behavior changes -- only structural simplifications.
- Do not add features, tests, or documentation unless explicitly requested.
- Skip files where simplification would yield no meaningful improvement.
- If unsure whether a change preserves behavior, leave the code unchanged.
- Verify diagnostics on each modified file after 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.
- 1mo ago First seen · 149 lines · 45 tokens per session scan A 3696bcf4dc30
code-simplifier is an agent published in the GitHub repository jmstar85/oh-my-githubcopilot (160 stars, last pushed 5mo ago), licensed MIT. It adds 45 tokens to every session and 1,238 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 95% identical to code-simplifier, differing in 4 lines, and is treated as a copy.
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