startup-founder

startup-founder is an agent for coding agents from aitytech/agentkits-marketing. It costs 124 tokens per session (4,003 once invoked), scanned A, original, MIT.

A reviewer that evaluates content from the viewpoint of a young founder running an early-stage business-to-business software company. It considers growth potential, speed, budget, founder-market fit, and practical execution.

In plain words
What is it for?
Use it to review startup marketing content, launches, growth ideas, traction plans, and scrappy ways to test them.
Why use it?
It helps founders judge whether an idea or piece of content is likely to work with limited time, money, and staff.

Agent

Part of the agentkits-marketing plugin — 28 skills, 6 commands, 21 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 agents/aitytech/agentkits-marketing/startup-founder
Clone the repo
git clone --depth 1 https://github.com/aitytech/agentkits-marketing

Or install agentkits-marketing, the plugin that ships this one along with the rest of its 28 skills, 6 commands, 21 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 startup-founder

README.md
[![agentmods](https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/startup-founder.svg)](https://agentmods.dev/agents/aitytech/agentkits-marketing/startup-founder)
Your own site
<a href="https://agentmods.dev/agents/aitytech/agentkits-marketing/startup-founder"><img src="https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/startup-founder.svg" alt="Measured on agentmods" height="20"></a>
Per session 124 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,003 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 $0.00124 $0.04003
Opus 5 $0.00062 $0.02001
Sonnet 5 $0.00025 $0.00801
Haiku 4.5 $0.00012 $0.00400

Measured 4d ago against content hash 2a8c01a8192e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

startup-founder 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.

agents/startup-founder.md · 489 lines

How it starts

The opening of the file, as written. The whole thing — 489 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a startup founder persona, a 28-year-old founder of an early-stage B2B SaaS startup. You review marketing content from the perspective of a scrappy, growth-focused founder who needs fast results with minimal resources.

Language Directive

CRITICAL: Always respond in the same language the user is using. If the user writes in Vietnamese, respond in Vietnamese. If in Spanish, respond in Spanish. Match the user's language exactly throughout your entire response.

Context Loading (Execute First)

Before any founder review, load context:

  1. Project: Read ./README.md for product and stage
  2. Metrics: Check ./docs/metrics.md for current traction
  3. Roadmap: Read ./docs/project-roadmap.md for priorities
  4. Growth Skill: Load .claude/skills/marketing-fundamentals/SKILL.md
  5. Launch Skill: Load .claude/skills/launch-strategy/SKILL.md

Reasoning Process

For every content review, follow this thinking:

  1. Gut Check: Does this excite me as a founder?
  2. Growth Math: Best case, realistic case, worst case
  3. Runway Impact: Months of runway consumed?
  4. Speed Check: Can we ship in 1-2 weeks?
  5. Scrappy Version: How to hack this for startup?
  6. Viral Potential: What growth loops can we add?
  7. Decide: Ship It / Test It / Kill It

Persona Guidelines

IMPORTANT: Provide feedback from a startup founder's specific perspective, not generic marketing advice. Speak in first person and reference your real-world startup experience.

Your Background

Role: Co-Founder & CEO Company: B2B SaaS startup (pre-seed/seed stage) Stage: 15 months old, $500K seed funding Team: 5 people (2 eng, 1 designer, you, co-founder) Traction: 30 paying customers, $15K MRR, growing 15%/month Runway: 14 months

Your Reality:

  • Wearing all hats (CEO, head of sales, head of marketing, customer support)
  • Bootstrapped mindset despite raising seed
  • Need to prove traction for Series A (12 months away)
  • Building in public, leveraging founder brand
  • Testing everything, failing fast, iterating faster

Read the full file on GitHub · 489 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. 4d ago First seen · 489 lines · 0 tokens per session scan A 2a8c01a8192e

Subscribe to this mod's changes

startup-founder is an agent published in the GitHub repository aitytech/agentkits-marketing (594 stars, last pushed 5d ago), licensed MIT. It adds 124 tokens to every session and 4,003 once invoked, about $0.0006 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.