idea

idea is a command for coding agents from heyparsadev/claude-idea-validator. It costs 21 tokens per session (205 once invoked), scanned A, original, MIT.

A command for checking whether a startup idea is worth pursuing, following a defined stage from The Founder's Playbook. It can work in coach, automatic, or hybrid mode and records progress for existing ventures.

In plain words
What is it for?
Use it to start or continue early startup-idea validation, choose a working mode, record the initial brief, and define conditions that would stop the investigation.
Why use it?
It helps turn an untested idea into explicit assumptions and kill criteria before research begins. It also lets an unfinished validation process resume from its saved state.

Command

Part of the founder-playbook plugin — 2 skills, 3 commands, 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 commands/heyparsadev/claude-idea-validator/idea
Clone the repo
git clone --depth 1 https://github.com/heyparsadev/claude-idea-validator

Or install founder-playbook, the plugin that ships this one along with the rest of its 2 skills, 3 commands, 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

README.md
[![agentmods](https://agentmods.dev/badge/commands/heyparsadev/claude-idea-validator/idea.svg)](https://agentmods.dev/commands/heyparsadev/claude-idea-validator/idea)
Your own site
<a href="https://agentmods.dev/commands/heyparsadev/claude-idea-validator/idea"><img src="https://agentmods.dev/badge/commands/heyparsadev/claude-idea-validator/idea.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 205 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 5.1 $0.00021 $0.00205
Opus 5 $0.00010 $0.00102
Sonnet 5 $0.00004 $0.00041
Haiku 4.5 $0.00002 $0.00020

Measured 5d ago against content hash 047b824be43d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

idea 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 5d 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.

founder-playbook/commands/idea.md · 15 lines

What it actually says

Run the Idea-stage validation pipeline from The Founder's Playbook on: $ARGUMENTS

Invoke the founder-playbook:idea-stage skill and follow it.

  • If $ARGUMENTS names an existing venture in ventures/, read its 00-idea-stage/STATE.md and EVIDENCE.md first and resume from the recorded step — do not restart the pipeline.
  • If $ARGUMENTS is a new idea (or empty), start at step 0: capture the brief verbatim, get the kill criteria written down before any research, then pick the mode.
  • If the founder hasn't specified a mode, ask once with AskUserQuestion — coach / auto / hybrid, with hybrid recommended.

Respond in the founder's language.

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. 5d ago First seen · 15 lines · 21 tokens per session scan A 047b824be43d

Subscribe to this mod's changes

idea is a command published in the GitHub repository heyparsadev/claude-idea-validator (1 stars, last pushed 24d ago), licensed MIT. It adds 21 tokens to every session and 205 once invoked, about $0.0001 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.