solo-roast

solo-roast is a skill for Claude Code from yayashuxue/solo-founder-playbook. It costs 16 tokens per session (509 once invoked), scanned A, original, no licence file.

A skill for reviewing a startup plan and giving it a data-based, deliberately harsh critique.

In plain words
What is it for?
It is for stress-testing a startup idea, business plan, or strategy.
Why use it?
It helps expose weak assumptions and missing evidence before time or money is spent on the plan.

Skill for Claude Code

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

Part of the solo-founder-playbook plugin — 6 skills shipped together

Good fit It is for stress-testing a startup idea, business plan, or strategy.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yayashuxue/solo-founder-playbook/solo-roast
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 yayashuxue/solo-founder-playbook --skill solo-roast
Clone the repo
git clone --depth 1 https://github.com/yayashuxue/solo-founder-playbook

Made for: Claude Code.

Or install solo-founder-playbook, the plugin that ships this one along with the rest of its 6 skills.

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 solo-roast

README.md
[![agentmods](https://agentmods.dev/badge/skills/yayashuxue/solo-founder-playbook/solo-roast/github.svg)](https://agentmods.dev/skills/yayashuxue/solo-founder-playbook/solo-roast)
Your own site
<a href="https://agentmods.dev/skills/yayashuxue/solo-founder-playbook/solo-roast"><img src="https://agentmods.dev/badge/skills/yayashuxue/solo-founder-playbook/solo-roast/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 solo-roast

Your own site · 80×15
<a href="https://agentmods.dev/skills/yayashuxue/solo-founder-playbook/solo-roast"><img src="https://agentmods.dev/badge/skills/yayashuxue/solo-founder-playbook/solo-roast.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 509 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 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 5.1 $0.00016 $0.00509
Opus 5 $0.00008 $0.00254
Sonnet 5 $0.00003 $0.00102
Haiku 4.5 $0.00002 $0.00051

Measured 12d ago against content hash 29512c895eeb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

solo-roast 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 12d 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/solo-roast/SKILL.md · 59 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

Files

What ships with it

1 file 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. 12d ago First seen · 59 lines · 16 tokens per session scan A 29512c895eeb

Subscribe to this mod's changes

solo-roast is a skill published in the GitHub repository yayashuxue/solo-founder-playbook (25 stars, last pushed 4mo ago), with no licence file. It adds 16 tokens to every session and 509 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 2026-08-30.

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