simplify-skill

simplify-skill is a skill for Claude Code, Codex from JhonatanRian/gemini-simplify-extension. It costs 60 tokens per session (1,067 once invoked), scanned A, original, MIT.

A code-review and simplification skill that first identifies a project's programming language, framework, package manager, and exact versions. It then uses documentation research and engineering rules to guide simplification work.

In plain words
What is it for?
Use it to inspect dependency files and prior plans, consult available documentation, review architecture, and simplify code across different languages and frameworks.
Why use it?
It reduces the risk of applying generic cleanup advice that does not fit the project's actual tools, versions, architecture, or existing decisions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

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/jhonatanrian/gemini-simplify-extension/simplify-skill
Any agent
npx skills add JhonatanRian/gemini-simplify-extension --skill simplify-skill
Clone the repo
git clone --depth 1 https://github.com/JhonatanRian/gemini-simplify-extension

Made for: Claude Code, Codex.

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.

agentmods badge for simplify-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/jhonatanrian/gemini-simplify-extension/simplify-skill.svg)](https://agentmods.dev/skills/jhonatanrian/gemini-simplify-extension/simplify-skill)
Your own site
<a href="https://agentmods.dev/skills/jhonatanrian/gemini-simplify-extension/simplify-skill"><img src="https://agentmods.dev/badge/skills/jhonatanrian/gemini-simplify-extension/simplify-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,067 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 5.1 $0.00060 $0.01067
Opus 5 $0.00030 $0.00534
Sonnet 5 $0.00012 $0.00213
Haiku 4.5 $0.00006 $0.00107

Measured 5d ago against content hash 388e506cfb17, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

simplify-skill 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 5d 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.

skills/simplify-skill/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Universal Ecosystem-Aware Simplify Skill (v4 - The Ultimate Architect)

This command transforms the assistant into an Elite Polyglot Software Architect. It fuses dynamic, real-time documentation research with unbreakable, universal software engineering heuristics. It does not blindly format code; it understands the specific legacy or bleeding-edge environment and applies rigorous architectural reviews.

Workflow

Phase 0: Analytical Mapping (The Universal Detective)

Identify the exact environment and its constraints without modifying files.

  1. Previous Plans: Check the plan directory (.gemini/plans/) for previous /simplify summaries. If found, read them to understand prior architectural decisions and avoid repeating analysis.
  2. Manifests & Lockfiles: Analyze dependency files (pyproject.toml, package.json, Cargo.toml, go.mod, pom.xml, etc.) to pinpoint the exact language version and framework versions.
  3. Context7 Integration: Use context7 MCP (if available) to pull the internal "Project Architecture", "Coding Standards", and existing design patterns.

Phase 1: Grounding & Modern Syntax Research (Zero Hallucination)

  1. Identify Version Gaps: Acknowledge the detected versions (e.g., Node 14 vs Node 22). What modern features does the target runtime support natively?
  2. Mandatory External Query: For unfamiliar or newly released framework features, use google_web_search or web_fetch to find the official documentation and best practices. Do not rely on outdated pre-training data.
  3. Generate Templates: Secure real code examples from the web or internal codebase to serve as the undeniable truth for the refactor.

Phase 2: Orchestration of Elite Reviewers

Invoke the 4 specialized sub-agents concurrently (wait_for_previous: false). Crucial: Agents must NOT modify files. They must only produce a structured analysis report (Markdown or JSON) with specific line numbers and proposed changes.

  • @abstraction (Code Reuse): Hunts for duplicated logic and unified abstractions.
  • @clarity (Code Quality): Identifies complexity and naming issues.
  • @performance (Efficiency): Detects bottlenecks and concurrency opportunities.
  • @standards (The Modernizer): Validates syntax against the exact version detected.

Read the full file on GitHub · 59 lines

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. 5d ago First seen · 59 lines · 60 tokens per session scan A 388e506cfb17

Subscribe to this mod's changes

simplify-skill is a skill published in the GitHub repository JhonatanRian/gemini-simplify-extension (1 stars, last pushed 4mo ago), licensed MIT. It adds 60 tokens to every session and 1,067 once invoked, about $0.0003 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 2026-08-31.

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