Code Refiner
Mathews-Tom/armory
Deep code simplification and refactoring preserving behavior across Python, Go, TypeScript, Rust.
AI DevKit · Analyze and simplify existing implementations to reduce complexity, improve maintainability, and enhance scalability.
Install Simplify Implementation
$ npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install codeaholicguy/ai-devkit simplify-implementation --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/codeaholicguy/ai-devkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/simplify-implementation .claude/skills/simplify-implementation && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "simplify-implementation" agent skill from https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementation into .claude/skills/simplify-implementation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify-implementation", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementationType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install codeaholicguy/ai-devkit simplify-implementation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codeaholicguy/ai-devkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/simplify-implementation .agents/skills/simplify-implementation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "simplify-implementation" agent skill from https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementation into .agents/skills/simplify-implementation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify-implementation", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install codeaholicguy/ai-devkit simplify-implementation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codeaholicguy/ai-devkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/simplify-implementation .cursor/skills/simplify-implementation && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "simplify-implementation" agent skill from https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementation into .cursor/skills/simplify-implementation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify-implementation", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/codeaholicguy/ai-devkit.git --path skills/simplify-implementation--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install codeaholicguy/ai-devkit simplify-implementation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codeaholicguy/ai-devkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/simplify-implementation .gemini/skills/simplify-implementation && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "simplify-implementation" agent skill from https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementation into .gemini/skills/simplify-implementation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify-implementation", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install codeaholicguy/ai-devkit simplify-implementationInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/codeaholicguy/ai-devkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/simplify-implementation .github/skills/simplify-implementation && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "simplify-implementation" agent skill from https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementation into .github/skills/simplify-implementation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify-implementation", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install codeaholicguy/ai-devkit simplify-implementation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codeaholicguy/ai-devkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/simplify-implementation .opencode/skills/simplify-implementation && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "simplify-implementation" agent skill from https://github.com/codeaholicguy/ai-devkit/tree/main/skills/simplify-implementation into .opencode/skills/simplify-implementation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "simplify-implementation", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
simplify-implementation- GitHub stars
- 1.6k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 571 words
- Files
- 3 (incl. references)
- Skills in repo
- 28
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
AI DevKit · Analyze and simplify existing implementations to reduce complexity, improve maintainability, and enhance scalability.
- Users ask to simplify code
- SKILL.md covers Hard Rules, Workflow, Red Flags and Rationalizations and Validation, plus 1 more section
- Calls npx
- Reduce complexity
What it does
Simplify Implementation is an agent skill from codeaholicguy/ai-devkit. AI DevKit · Analyze and simplify existing implementations to reduce complexity, improve maintainability, and enhance scalability. Use when users ask to simplify code, reduce complexity, refactor for readability, clean up implementations, improve maintainability, reduce technical debt, or make code easier to understand.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `agents/openai.yaml` and `references/readability-guide.md`).
It sits in Development, covering Code simplification, Plain language and style rules and Technical debt. The repository describes itself as: The control plane for AI coding agents. The licence is Apache-2.0.
When your agent uses it
- Users ask to simplify code
- Reduce complexity
- Refactor for readability
- Clean up implementations
Example prompts
- “/simplify-implementation”
Requirements
- Node.js
What it can do on your machine
Read from SKILL.md and the folder at commit 7ef0cd5. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Simplify Implementation loads about 1.2k tokens when it runs, and up to ~1.6k if it reads all its reference files. Until then it costs about 86 tokens; SKILL.md has 571 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from codeaholicguy/ai-devkit at commit 7ef0cd5, republished under its Apache-2.0 licence (© codeaholicguy). 571 words, ~1,195 tokens.
Download SKILL.mdSave it as
.claude/skills/simplify-implementation/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- simplify-implementation
- description
- AI DevKit · Analyze and simplify existing implementations to reduce complexity, improve maintainability, and enhance scalability. Use when users ask to simplify code, reduce complexity, refactor for readability, clean up implementations, improve maintainability, reduce technical debt, or make code easier to understand.
Simplify Implementation Assistant
Reduce complexity with an analysis-first approach before changing code.
Hard Rules
- Do not modify code until the user approves a simplification plan.
- Readability over brevity. Some duplication beats the wrong abstraction.
- Prefer reusing an existing function over introducing a new one — but only if it fits cleanly. Do not force-fit a near-match.
- Before improving code, ask whether the function, abstraction, dependency, or custom logic needs to exist at all.
- Prefer platform and standard-library features over custom code or dependencies. Use already-installed dependencies when they cleanly solve the problem; do not add a dependency for logic that is only a few clear lines.
- For breaking changes: modify in place only when all callers are in-repo and updated in the same change. For public/external APIs, add a new function and deprecate the old one (parallel change).
- Delete or inline before adding: remove dead code, one-caller wrappers, redundant guards, stale tests, and unused configuration first.
Workflow
- Gather Context
- Confirm targets, pain points, and constraints (compatibility, API stability, deadlines).
- Search for past simplification decisions or known constraints:
npx ai-devkit@latest memory search --query "<target area>" --tags "simplify"
- Analyze Complexity
- Identify sources (nesting, duplication, coupling, over-engineering, magic values).
- Run an existence check: can this code be deleted, delegated to the standard library, handled by a native platform feature, enforced by the database, or covered by an existing dependency?
- Apply the existence check to tests and scaffolding: remove stale, duplicate, implementation-detail-only, unused, or no-longer-relevant tests, assertions, and fixtures without unique behavioral coverage.
- Apply the reader-load test: can a new reader answer where key values come from and what can change them quickly? Count needless layers and hidden mutable state.
- Assess impact (LOC, dependencies, cognitive load, boundary leakage, scalability blockers).
- Apply Readability Principles
- Apply the readability guide and its "Reading Test".
- Prefer domain-shaped structures over scattered conditionals when they remove branches, duplicated rules, or invalid states. Do not add an abstraction that only moves code around.
- Propose Simplifications For each issue, apply a pattern:
- Extract: Long functions → smaller, focused functions.
- Consolidate: Duplicate code → shared utilities.
- Flatten: Deep nesting → early returns, guard clauses.
- Decouple: Tight coupling → dependency injection, interfaces.
- Remove: Dead code, unused features, excessive abstractions.
- Replace: Custom logic → standard-library, native platform, database, or already-installed dependency features.
- Defer: Premature optimization → measure-first approach.
- Redesign: Repeated implementation friction, patched branches, or synchronized flags → revisit the model before another local cleanup.
- Prioritize and Plan
- Rank by impact/risk. Present plan with before/after snippets. Request approval.
Show full SKILL.md (161 more words)Show less
Red Flags and Rationalizations
| Rationalization | Why It's Wrong | Do Instead |
|---|---|---|
| "While I'm here, let me refactor this too" | Scope creep breaks things | Only simplify what was requested |
| "This abstraction will help later" | Predicted reuse rarely materializes | Remove it unless used twice today |
| "Shorter is simpler" | Brevity can hide complexity | Optimize for readability, not line count |
| "I'll add a v2 instead of updating callers" | Accumulates dead code and forks the API | Modify in place when callers are in-repo; parallel-change only for external/public APIs |
| "Existing fn is close enough — I'll bend it to fit" | Wrong abstraction is costlier than duplication | Reuse only on clean fit; otherwise keep the small duplicate |
Validation
- Preserve meaningful regression, public-contract, and interaction coverage. Update stale tests to intentional behavior; never delete tests merely to make failures pass.
- Verify no regressions, add tests for new helpers, update docs if interfaces changed.
Output Template
- Target and Context
- Complexity Analysis
- Simplification Proposals (prioritized)
- Recommended Order and Plan
- Scalability Recommendations
- Validation Checklist
© codeaholicguy, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (references) in skills/simplify-implementation of codeaholicguy/ai-devkit.
- SKILL.md
- agents/openai.yaml
- references/readability-guide.md
Open the folder on GitHubat commit 7ef0cd5
Compare with similar skills
Simplify Implementation next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Simplify Implementation this skillcodeaholicguy/ai-devkit | 1.6k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Code RefinerMathews-Tom/armory | 327 | — | ~3.1k | Automated safety check: Pass | MIT | |
| Code Simplification for ego-litecitrolabs/ego-lite | 17k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Codebase Health Refactoringkucherenko/jscpd | 6.3k | — | ~2.5k | Automated safety check: Pass | MIT | |
| DRY Refactoring With jscpdkucherenko/jscpd | 6.3k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Code Simplifiergetsentry/skills | 1k | 6 repos | ~991 | Automated safety check: Pass | Apache-2.0 |
Similar skills
Code Simplification for ego-lite
citrolabs/ego-lite
Finds and implements evidence-backed simplifications in the ego-lite repository, such as dead code, duplicated state and speculative abstractions, without hiding behavior changes.
Codebase Health Refactoring
kucherenko/jscpd
A three-part cleanup guided by jscpd: measure health, then fix duplicated code, remove dead code and simplify the most complex files, finishing by re-measuring the score.
DRY Refactoring With jscpd
kucherenko/jscpd
Removes copy-paste duplication found by jscpd, starting with exact clones and hotspots, then renamed and near-miss copies, using proven refactoring strategies.
- Official
Code Simplifier
getsentry/skills
Simplifies and refines code for clarity, consistency, and maintainability while preserving all functionality.
Dead Code Removal with Knip
shift-editor/shift
Finds unused files, exports and class members with Knip, then verifies each candidate through reference tracing before removing anything, never using knip --fix.
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Questions about Simplify Implementation
What does Simplify Implementation do?
AI DevKit · Analyze and simplify existing implementations to reduce complexity, improve maintainability, and enhance scalability. Simplify Implementation is an agent skill from codeaholicguy/ai-devkit. AI DevKit · Analyze and simplify existing implementations to reduce complexity, improve maintainability, and enhance scalability.
When should I use Simplify Implementation?
Simplify Implementation fits situations like: users ask to simplify code; reduce complexity; refactor for readability; clean up implementations.
How do I install Simplify Implementation in Claude Code?
Run `npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a claude-code`. Or copy the skill folder (skills/simplify-implementation in codeaholicguy/ai-devkit) into .claude/skills/simplify-implementation in your project. Claude Code loads it when a task matches its description.
How do I install Simplify Implementation in Codex?
Run `npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a codex`. Or copy the skill folder (skills/simplify-implementation in codeaholicguy/ai-devkit) into .agents/skills/simplify-implementation in your project. Codex loads it when a task matches its description.
Can I use Simplify Implementation in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add codeaholicguy/ai-devkit --skill simplify-implementation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/simplify-implementation, .gemini/skills/simplify-implementation, .github/skills/simplify-implementation and .opencode/skills/simplify-implementation in your project.
What does Simplify Implementation need to run?
Going by SKILL.md and its folder, Simplify Implementation needs the command-line tools its instructions call (npx). Our summary lists: Node.js.
Does Simplify Implementation access the network?
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Simplify Implementation safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Simplify Implementation use?
Simplify Implementation is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Simplify Implementation use?
About 1.2k tokens (SKILL.md is roughly 4.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 373 tokens, read only when the agent opens those files.
What are the alternatives to Simplify Implementation?
Skills that share tags, products or a category with Simplify Implementation: Code Refiner (Mathews-Tom/armory, 327 stars), Code Simplification for ego-lite (citrolabs/ego-lite, 17k stars), Codebase Health Refactoring (kucherenko/jscpd, 6.3k stars) and DRY Refactoring With jscpd (kucherenko/jscpd, 6.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Simplify Implementation?
codeaholicguy (a GitHub user) maintains it in codeaholicguy/ai-devkit, which has 1,641 GitHub stars. The repository holds 28 skills in this directory. The repository was last updated on October 6, 2026.
Source: codeaholicguy/ai-devkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.