design

design is a skill for Claude Code, Codex from iansmith/slopstop. It costs 51 tokens per session (5,584 once invoked), scanned A, original, no licence file.

The first stage of a process for defining a large software feature, including a product requirements document and a feature charter.

In plain words
What is it for?
It is used to question assumptions, record shared understanding, write planning documents, and stop for a design review checkpoint.
Why use it?
It helps clarify what should be built and why before implementation begins.

Skill for Claude CodeCodex

Part of the slopstop plugin — 19 skills, 5 agents shipped together

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/iansmith/slopstop/design
Any agent
npx skills add iansmith/slopstop --skill design
Clone the repo
git clone --depth 1 https://github.com/iansmith/slopstop

Made for: Claude Code, Codex.

Or install slopstop, the plugin that ships this one along with the rest of its 19 skills, 5 agents.

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 design

README.md
[![agentmods](https://agentmods.dev/badge/skills/iansmith/slopstop/design.svg)](https://agentmods.dev/skills/iansmith/slopstop/design)
Your own site
<a href="https://agentmods.dev/skills/iansmith/slopstop/design"><img src="https://agentmods.dev/badge/skills/iansmith/slopstop/design.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,584 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00051 $0.05584
Opus 5 $0.00026 $0.02792
Sonnet 5 $0.00010 $0.01117
Haiku 4.5 $0.00005 $0.00558

Measured 3d ago against content hash 50605496f6b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

design 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 3d 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/design/SKILL.md · 353 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 3d ago First seen · 353 lines · 51 tokens per session scan A 50605496f6b0

Subscribe to this mod's changes

design is a skill published in the GitHub repository iansmith/slopstop (2 stars, last pushed 4d ago), with no licence file. It adds 51 tokens to every session and 5,584 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.

Related

Other skills, from other repositories

project-management

Agile methodologies, issue tracking, and team collaboration tools.

miles990/claude-software-skills · 14 tokens

linear-cli

Manage Linear issues from the command line using the linear cli. This skill allows automating linear management.

schpet/linear-cli · 23 tokens

Release

This skill should be used when the user asks to "make a release", "create a release", "cut a release", "release a new version", "publish a release", or mentions preparing for release. Provides comprehensive workflow for reviewing changes, updating changelog, determining semver bump, and publishing.

schpet/linear-cli · 63 tokens

pir-action-tracker

Parses Post-Incident Review (PIR) pages in a Confluence space, fetches live status from referenced Jira tickets, updates action item tables with current status and due dates, marks completed PIRs with a visual closure panel, and surfaces any overdue actions for follow-up. Designed for Customer Success, Support, and…

Perseus-Computing-LLC/perseus · 78 tokens

linear

Linear project management — issues, cycles, and projects via GraphQL API.

furkangonel/cowrangler · 17 tokens

start-session

Session-bootstrap orchestration skill — its one job is to bring a working session online: apply senior-collaborator operating parameters, load prior feedback, pull the project's Jira backlog, and activate the standing plan-gate (analysis + plan + approval before any code edit). Trigger on /start-session or "start…

shashankreddy509/claude-tdd-kit · 67 tokens