simplify

A codebase cleanup workflow that finds duplication, dead code, overly complex areas, and unnecessary abstractions. It produces a ranked plan and only applies changes when explicitly requested.

In plain words
What is it for?
Use it to examine recent changes or an entire repository, prioritize safe reductions, and optionally apply cleanup where test coverage supports it.
Why use it?
It shows where code can be made smaller or simpler without changing its behavior. The default read-only mode lets you review the proposed cleanup first.

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/griffinwork40/agent-framework/simplify
Any agent
npx skills add griffinwork40/agent-framework --skill simplify
Clone the repo
git clone --depth 1 https://github.com/griffinwork40/agent-framework

Made for: Claude Code, Codex.

Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,730 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 95% copy Near-identical to another mod 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 $0.00076 $0.01730
Opus 5 $0.00038 $0.00865
Sonnet 5 $0.00015 $0.00346
Haiku 4.5 $0.00008 $0.00173

Measured 2d ago against content hash ce720df16e81, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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.

Origin

This is a copy

95% identical to simplify — 1 line 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.

skills/simplify/SKILL.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sub-agent contract

/contract

Overview

/simplify is a discovery-and-prioritization skill, not a correctness auditor (that is /review's job) and not a blind executor (that is /refactor's job). It answers: what incidental complexity, duplication, and dead weight exists in this code, and what is safe to remove? Default mode is read-only: a ranked reduction plan is emitted but nothing is changed. Writes only happen when --apply is explicitly passed.

Scope is diff-bounded by default (git diff origin/main, or working-tree/HEAD if no remote). Pass --all for a whole-repo sweep (where duplication and dead-code analysis pay off most). Pass an explicit [target] path or PR reference to override both. Code with no test coverage is safe to analyze but must never be auto-applied — the skill surfaces that gap and recommends /simplify [target] --all after adding tests, or produces the plan and stops.


Argument parsing

Argument Effect
(none) Scope = git diff origin/main (working-tree fallback)
[target] Explicit path, glob, or PR ref
--all Whole-repo sweep; excludes node_modules/, dist/, generated files
--apply Opt-in write mode; default is read-only plan

Parse arguments before dispatching Wave 1. Resolve scope to a concrete file list or diff stat and attach it to every sub-agent prompt.


Wave 1 — Parallel discovery (read-only)

Dispatch all four lenses simultaneously as research-agent sub-agents. All are strictly read-only — no writes, no installs that modify package.json. Optional tooling (jscpd, knip) is an accelerant only; degrade to grep/structural reasoning when absent or network-gated.

(a) Duplication / clone detection

Find exact and near-duplicate logic blocks across modules within scope. Optionally seed with:

npx jscpd <scope> --reporters json --silent

If jscpd is absent, use grep for literal repetition and structural reasoning for semantic clones. Output: clone clusters with file:line ranges, estimated token overlap, and a suggested extraction site.

Read the full file on GitHub · 125 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. 2d ago First seen · 125 lines · 76 tokens per session scan A ce720df16e81

Subscribe to this mod's changes

simplify is a skill published in the GitHub repository griffinwork40/agent-framework (23 stars, last pushed 7d ago), licensed Apache-2.0. It adds 76 tokens to every session and 1,730 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to simplify, differing in 1 line, and is treated as a copy.

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