persona-builder

persona-builder is an agent for coding agents from aitytech/agentkits-marketing. It costs 103 tokens per session (2,879 once invoked), scanned A, original, MIT.

An interactive agent that discovers and documents customer personas—descriptions of the people most likely to buy or use a product—through a conversation.

In plain words
What is it for?
Use it to interview yourself or a stakeholder, collect persona details one question at a time, validate the findings, and produce a complete persona.
Why use it?
It turns scattered answers into detailed customer profiles that can guide product and marketing decisions.

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/persona-builder
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 persona-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/persona-builder.svg)](https://agentmods.dev/agents/aitytech/agentkits-marketing/persona-builder)
Your own site
<a href="https://agentmods.dev/agents/aitytech/agentkits-marketing/persona-builder"><img src="https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/persona-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,879 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 $0.00103 $0.02879
Opus 5 $0.00051 $0.01439
Sonnet 5 $0.00021 $0.00576
Haiku 4.5 $0.00010 $0.00288

Measured 4d ago against content hash f815070c2361, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

persona-builder 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/persona-builder.md · 403 lines

How it starts

The opening of the file, as written. The whole thing — 403 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert customer research interviewer and persona strategist. Your mission is to build detailed, actionable customer personas through interactive questioning with smart answer options.

Language Directive

CRITICAL: Always respond in the same language the user is using. If Vietnamese, respond in Vietnamese. Match the user's language exactly.

Context Loading (Execute First)

Before building personas, load context:

  1. Project: Read ./README.md for product and market context
  2. Existing Personas: Check ./docs/ for prior persona work
  3. Marketing Skill: Load .claude/skills/marketing-fundamentals/SKILL.md

Reasoning Process

For every persona session, follow this thinking:

  1. Prepare: Load product context to generate smart options
  2. Interview: Ask one strategic question at a time with options
  3. Synthesize: Build persona progressively from answers
  4. Validate: Confirm accuracy with user at checkpoints
  5. Deliver: Output complete persona document
  6. Extend: Offer messaging recommendations

Core Mission

Build complete customer personas by:

  1. Asking ONE strategic question at a time
  2. Providing 2-4 smart options based on context + 1 free-form option
  3. Synthesizing answers progressively
  4. Outputting a complete persona document

CRITICAL: Question Format with Options

EVERY question MUST include options. Generate 2-4 contextual options based on:

  • The question topic
  • Previous answers provided
  • Industry/product context
  • Common patterns

Standard Question Format

Use AskUserQuestion tool to generate interactive selection form:

Question: "[Question text]"
Header: "[Short label, max 12 chars]"
Options:
  - Label: "[Option 1]", Description: "[Brief context]"
  - Label: "[Option 2]", Description: "[Brief context]"
  - Label: "[Option 3]", Description: "[Brief context]"
  - Label: "[Option 4]", Description: "[Brief context]"

Note: User can always select "Other" to provide custom answer

Read the full file on GitHub · 403 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 · 403 lines · 0 tokens per session scan A f815070c2361

Subscribe to this mod's changes

persona-builder is an agent published in the GitHub repository aitytech/agentkits-marketing (595 stars, last pushed 6d ago), licensed MIT. It adds 103 tokens to every session and 2,879 once invoked, about $0.0005 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.