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idea-to-design

idea-to-design is a skill for Claude Code from britt/agent-skills. It costs 55 tokens per session (670 once invoked), scanned A, original, MIT.

A workflow that turns a raw idea note into design, decision, and research documents inside an Obsidian vault or another folder containing an Ideas directory.

In plain words
What is it for?
Use it to organize an idea, research its feasibility, move the original note into a project folder, and create Design.md, Decisions.md, and Research.md.
Why use it?
It turns an unstructured idea into a documented plan by recording what the project is, who it serves, how it works, and why key choices were made.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agent-skills plugin — 28 skills shipped together

not rated 5repo 7d ago A scan 55 tokens original MIT

Good fit Use it to organize an idea, research its feasibility, move the original note into a project folder, and create Design.md, Decisions.md, and Research.md.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/britt/agent-skills/idea-to-design
View source ↗ britt/agent-skills britt.github.io
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.

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

Made for: Claude Code.

Or install agent-skills, the plugin that ships this one along with the rest of its 28 skills.

Its marketplace also offers this one on its own, as the plugin idea-to-design — /plugin install idea-to-design after adding the marketplace above.

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 idea-to-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/britt/agent-skills/idea-to-design/github.svg)](https://agentmods.dev/skills/britt/agent-skills/idea-to-design)
Your own site
<a href="https://agentmods.dev/skills/britt/agent-skills/idea-to-design"><img src="https://agentmods.dev/badge/skills/britt/agent-skills/idea-to-design/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for idea-to-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/britt/agent-skills/idea-to-design"><img src="https://agentmods.dev/badge/skills/britt/agent-skills/idea-to-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 670 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00055 $0.00670
Opus 5 $0.00028 $0.00335
Sonnet 5 $0.00011 $0.00134
Haiku 4.5 $0.00006 $0.00067

Measured 10d ago against content hash d817e3f5dfea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

idea-to-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 10d 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/idea-to-design/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Idea to Design

Transform raw idea notes into comprehensive design documents autonomously.

Prerequisites/Context: Operates on an Obsidian vault (or any markdown folder) containing an Ideas/ folder; if no Ideas/ folder is found, ask the user for the vault path.

When to Use

Activate when asked to:

  • Turn an idea note into a design
  • Plan an idea or "make an idea real"

Not for features in an existing codebase — use writing-product-specs or a brainstorming skill instead.

Process

  1. Read the idea note - Understand what's being proposed
  2. Create folder - Inside the Ideas folder, create a subfolder named after the idea
  3. Move original - Move the original idea note into the new folder
  4. Research - Investigate unknowns, find relevant information, explore feasibility
  5. Write design doc - Answer: What is it? Who is it for? How does it work? Where is it deployed?
  6. Document decisions - Create explicit Decisions.md listing choices made and reasoning

Required Outputs

All files go in Ideas/<Idea Name>/:

File Purpose
<Original>.md The original idea note (moved here)
Design.md Comprehensive design document
Decisions.md Explicit list of decisions with reasoning
Research.md Sources consulted, findings, and references

Autonomy

Ask zero questions. Make reasonable decisions and document them. If something is unclear:

  • State the assumption
  • Make a choice
  • Document it in Decisions.md

Design Doc Should Answer

  • Is it software, hardware, or a service?
  • Who is the target audience?
  • How will it work technically?
  • Where will it be deployed/run?
  • What's the business model (if applicable)?
  • What are the risks and mitigations?
  • What are the next steps?

Diagrams

Use Mermaid for all diagrams. Obsidian renders Mermaid natively.

  • Architecture diagrams: flowchart TB or flowchart LR
  • Sequences: sequenceDiagram
  • Data flow: flowchart with subgraphs
  • State machines: stateDiagram-v2

Read the full file on GitHub · 88 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. 10d ago First seen · 88 lines · 55 tokens per session scan A d817e3f5dfea

Subscribe to this mod's changes

idea-to-design is a skill published in the GitHub repository britt/agent-skills (5 stars, last pushed 7d ago), licensed MIT. It adds 55 tokens to every session and 670 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.

PlanningResearch
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