idea-validator

idea-validator is a skill for Claude Code, Codex from Mathews-Tom/armory. It costs 77 tokens per session (2,350 once invoked), scanned A, original, MIT.

A business-idea review workflow that examines a proposal from several angles, including customers, competitors, feasibility, risks, and expected value.

In plain words
What is it for?
Use it to assess a startup idea, pitch, product feature, or possible business pivot and receive a scored report with a verdict.
Why use it?
It helps replace first impressions with a structured assessment of whether an idea is worth pursuing and what its weak points are.

Skill for Claude CodeCodex

Part of the armory plugin — 57 skills, 1 agent 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/mathews-tom/armory/idea-validator
Any agent
npx skills add Mathews-Tom/armory --skill idea-validator
Clone the repo
git clone --depth 1 https://github.com/Mathews-Tom/armory

Made for: Claude Code, Codex.

Or install armory, the plugin that ships this one along with the rest of its 57 skills, 1 agent.

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-validator

README.md
[![agentmods](https://agentmods.dev/badge/skills/mathews-tom/armory/idea-validator.svg)](https://agentmods.dev/skills/mathews-tom/armory/idea-validator)
Your own site
<a href="https://agentmods.dev/skills/mathews-tom/armory/idea-validator"><img src="https://agentmods.dev/badge/skills/mathews-tom/armory/idea-validator.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,350 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 $0.00077 $0.02350
Opus 5 $0.00039 $0.01175
Sonnet 5 $0.00015 $0.00470
Haiku 4.5 $0.00008 $0.00235

Measured 4d ago against content hash 2fdeb46ffac1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

idea-validator 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 4d 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-validator/SKILL.md · 224 lines

How it starts

The opening of the file, as written. The whole thing — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Business Idea Validator

Purpose

Perform rigorous, multi-dimensional validation of business ideas by orchestrating parallel research and synthesizing findings into a scored, actionable report. The goal is honest assessment — surfacing what holds up under scrutiny and what does not — rather than cheerleading or reflexive dismissal.

Phase 1: Input Intake & Classification

Classify the input:

Input Type Indicators Adaptation
Elevator pitch 1-3 sentences, informal Extract hypothesis, ask for missing details
Business plan Structured, multiple sections Validate claims against research
Feature proposal Technical focus, existing product context Narrow scope to feature viability
Repo/codebase File paths, code references Technical feasibility + market fit
Pivot assessment "Should we pivot to...", comparison context Compare current vs proposed direction

Extract core elements from the input:

  • Problem statement — what pain point exists
  • Proposed solution — how it addresses the pain
  • Target customer — who experiences this problem
  • Value proposition — why this solution over alternatives
  • Revenue model — how it generates money

If any core element is missing or ambiguous, ask clarifying questions. Cap at 5 questions. Do not proceed with fabricated assumptions for missing elements — get real answers.

Phase 2: Lean Canvas Construction

Build a complete Lean Canvas using references/lean-canvas.md as the framework guide.

Populate all 9 boxes:

  1. Problem — top 3 problems the customer faces
  2. Customer Segments — target market + early adopter profile
  3. Unique Value Proposition — single clear compelling message
  4. Solution — top 3 features addressing the top 3 problems
  5. Channels — path to reaching customers
  6. Revenue Streams — pricing model and revenue mechanics
  7. Cost Structure — fixed and variable costs
  8. Key Metrics — what to measure for progress
  9. Unfair Advantage — what cannot be easily copied or bought

Read the full file on GitHub · 224 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 224 lines · 77 tokens per session scan A 2fdeb46ffac1

Subscribe to this mod's changes

idea-validator is a skill published in the GitHub repository Mathews-Tom/armory (316 stars, last pushed 6d ago), licensed MIT. It adds 77 tokens to every session and 2,350 once invoked, about $0.0004 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 2026-08-30.

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