Improve existing work with focused simplification passes across code, writing, research, operations, or general tasks.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Simplify
## Purpose
Improve existing work quality while preserving intent and behavior.
## Routing
- Use when: Use when the user asks to simplify or tighten existing outputs, code, docs, reports, plans, or runbooks without changing core intent.
- Do not use when: Do not use when the user requests net-new content generation from scratch or asks for parallel migrations across many independent targets (use batch).
- Outputs: A simplified, higher-signal result plus explicit before/after deltas and tradeoffs.
- Success criteria: The output is materially clearer or leaner while preserving original intent/behavior and keeping changes verifiable.
## Trigger Examples
### Positive
- Run /simplify on this patch and make it cleaner without changing behavior.
- Tighten this report, then run /simplify.
- Simplify this runbook for on-call use.
- Use simplify to reduce noise in this proposal.
### Negative
- Migrate 300 files from one framework to another in parallel.
- Create a new strategy memo from scratch on a topic we have not covered.
- Install and configure a brand new integration end-to-end.
- Use batch for broad multi-target migrations instead of simplify.
## Parameters
…
The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (2167 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
cowork-os/cowork-os · 496 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ru65zhbhwm65yimc
GET https://markdownregistry.com/api/v1/resolve?ref=cowork-os/cowork-os/simplify
GET https://markdownregistry.com/api/v1/blob/5c2c7b7ce6edc919189ec29a418cfec903b647fa9f1fb1f47b075653ec790f40
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/attack-path-analysis/SKILL.md · Use when Codex is already in the attack-path-analysis phase of a security scan or the user explicitly asks to trace a…
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/deep-security-scan/SKILL.md · Use when the user asks for a deep, exhaustive, multi-pass, or variance-reducing repository-wide Codex Security scan…
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/finding-discovery/SKILL.md · Use when Codex is already in the finding-discovery phase of a security scan or the user explicitly asks to discover…
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/fix-finding/SKILL.md · Use when the user explicitly asks to fix and verify a validated or plausible security finding. Do not use as the…
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/security-diff-scan/SKILL.md · Use when the user asks for a security review of a pull request, commit, branch diff, working-tree patch, or other…
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/security-scan/SKILL.md · Use when the user asks for a repository-wide or scoped-path security scan.
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/threat-model/SKILL.md · Use when Codex is already in the threat-modeling phase of a security scan, the user explicitly invokes $threat-model…
cowork-os/cowork-os · resources/plugin-packs/codex-security/skills/validation/SKILL.md · Use when Codex is already in the validation phase of a security scan or the user explicitly asks to determine whether…
cowork-os/cowork-os · resources/skills/1password/SKILL.md · Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or…
fcakyon/claude-codex-settings · plugins/simplify/skills/simplify/SKILL.md · This skill should be used when the user asks to "simplify", "clean up the diff", "run simplify", "simplify the…
genai-io/san · .san/personas/software-engineer/skills/simplify/SKILL.md · Review changed code for reuse, quality, and efficiency, then clean up what you find — duplicated logic that could reuse…
maquina-app/rails-claude-code · rails-simplifier/skills/simplify/SKILL.md · Simplifies and refines Ruby on Rails code following 37signals patterns and the One Person Framework philosophy, while…
outlinedriven/odin-claude-plugin · plugins/odin-code/skills/simplify/SKILL.md · Use when the user says "simplify this diff" or asks for a compression pass over a change-set. Not for dead-code sweeps…
lichangzheng10086/doyin_ai_video · .agents/skills/simplify/SKILL.md · Simplify and refine recently modified code for clarity and consistency. Use after writing code to improve readability…
