A refactoring command that simplifies code while keeping its behavior the same. It runs tests before and after changes and targets duplication, dead code, deep nesting, unclear names, and similar readability problems.

Use it to clean up a file or directory, remove repeated logic, improve control flow, and delegate larger cross-file refactors to a separate agent.

It provides a repeatable cleanup process while using tests to detect accidental behavior changes.

simplify — Command for Claude Code by hmj1026

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.

Clone the repo

git clone --depth 1 https://github.com/hmj1026/dhpk

Made for: Claude Code.

Or install dhpk, the plugin that ships this one along with the rest of its 65 skills, 31 commands, 37 agents, 3 hooks.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/hmj1026/dhpk/simplify/github.svg)](https://agentmods.dev/commands/hmj1026/dhpk/simplify)

Your own site

<a href="https://agentmods.dev/commands/hmj1026/dhpk/simplify"><img src="https://agentmods.dev/badge/commands/hmj1026/dhpk/simplify/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/hmj1026/dhpk/simplify"><img src="https://agentmods.dev/badge/commands/hmj1026/dhpk/simplify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 406 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.

Model	Per session	Once invoked
Fable 5.1	$0.00013	$0.00406
Opus 5	$0.00006	$0.00203
Sonnet 5	$0.00003	$0.00081
Haiku 4.5	$0.00001	$0.00041

Measured 7d ago against content hash 0163e1765474, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

simplify 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 7d 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.

commands/simplify.md · 50 lines

What it actually says

Task

For $ARGUMENTS:

Run tests first (establish baseline)
Refactor (functionally-equivalent changes only)
- Structure: remove dead code · extract duplicates (3+ repeats) into a named helper · early returns over nesting (> 3 levels) · async/await over callback chains
- Readability: descriptive names · avoid nested ternaries · break long chains into intermediate variables
- Quality: drop stray console.log / commented-out code · consolidate duplicate logic · unwind over-abstracted single-use helpers
Run tests again (confirm nothing broken)

Delegate (large-scale cleanup)

This command refactors in place for the file/dir in $ARGUMENTS. For heavier cleanup that spans the codebase, dispatch the refactor-cleaner agent (subagent_type: dhpk:refactor-cleaner) instead of inlining:

a file exceeds 800 lines and needs splitting
cross-file duplicate logic must be consolidated (not just 3+ repeats within one file)
a dead-code sweep across multiple modules (unused exports / functions / imports)

The agent owns gitnexus_impact / rename for safe multi-file moves; relay its summary back.

Output

## Refactoring Summary

- [file:line] <change>

## Test Results

✅/❌

## Next Steps

- <suggestions>

Constraints

❌ Do not change business logic
❌ Do not add new features

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.

7d ago First seen · 50 lines · 13 tokens per session scan A 0163e1765474

Subscribe to this mod's changes

simplify is a command published in the GitHub repository hmj1026/dhpk (2 stars, last pushed today), licensed MIT. It adds 13 tokens to every session and 406 once invoked, about $0.0001 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 2026-09-05.

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