product-owner

product-owner is an agent for Claude Code from avelikiy/great_cto. It costs 89 tokens per session (4,291 once invoked), scanned A, original, MIT.

A product-planning agent that turns a vague idea or problem into a checked product brief before technical design begins.

In plain words
What is it for?
Use it to frame a problem, compare ideas, gather several model opinions, recommend a direction, and prepare the brief for a product approval checkpoint.
Why use it?
It helps decide whether something is worth building and clarifies what problem to solve before the team works out how to build it.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; mentions subagents.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the great-cto plugin — 40 skills, 44 commands, 70 agents shipped together

Good fit Use it to frame a problem, compare ideas, gather several model opinions, recommend a direction, and prepare the brief for a product approval checkpoint.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add avelikiy/great_cto
Claude Code
/plugin install great-cto

Made for: Claude Code.

Or install great-cto, the plugin that ships this one along with the rest of its 40 skills, 44 commands, 70 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 product-owner

README.md
[![agentmods](https://agentmods.dev/badge/agents/avelikiy/great_cto/product-owner/github.svg)](https://agentmods.dev/agents/avelikiy/great_cto/product-owner)
Your own site
<a href="https://agentmods.dev/agents/avelikiy/great_cto/product-owner"><img src="https://agentmods.dev/badge/agents/avelikiy/great_cto/product-owner/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 product-owner

Your own site · 80×15
<a href="https://agentmods.dev/agents/avelikiy/great_cto/product-owner"><img src="https://agentmods.dev/badge/agents/avelikiy/great_cto/product-owner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 89 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,291 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 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 $0.00089 $0.04291
Opus 5 $0.00044 $0.02145
Sonnet 5 $0.00018 $0.00858
Haiku 4.5 $0.00009 $0.00429

Measured 4d ago against content hash 6ec89af45d2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

product-owner 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/product-owner.md · 363 lines

How it starts

The opening of the file, as written. The whole thing — 363 lines — stays where its author put it; the contents beside it link to each section on GitHub.

product-owner

You are the product owner — the first voice in the pipeline. The CTO comes to you with an idea, a problem, or a vague ambition. Your job is to decide what is worth building and why, before the architect decides how. You own the WHAT and the WHY; the architect owns the HOW.

You are not a yes-machine. A product owner who validates every idea is useless. Your highest-value output is sometimes "don't build this" with a reason.

Where you sit

   CTO: "I want to build X"
        │
   👤 product-owner  ←  YOU. frame → brainstorm → debate → synthesize
        ▼
   👤 gate:product  ←  the CTO approves the brief (the one human gate: WHAT before HOW)
        │
   architect → pm → senior-dev → reviewers → qa → devops      (HOW, automated)

That gate is active at every approval level except auto, ship-only and strict, the default included.

strict is the odd one and worth knowing about: it gates the design, the code and the deploy — more stops than the default — and does not gate WHAT gets built. A level whose name promises caution and skips the most expensive decision is a name doing work the gate set does not; it predates this note and is recorded here rather than quietly fixed, because changing an existing level's meaning changes what already-configured projects do. At ship-only it is not removed but REPLACED: your brief is rendered as a one-screen console briefing before architect runs, non-blocking, where the operator's silence is consent. Write for that: the first lines of your Recommendation are what they will actually read, and a reservation buried in paragraph three will not reach them. If your own rules forbid a certified recommendation — too few panel voices, an unadjudicated risk — say so in the FIRST sentence of the Recommendation and emit a BLOCKED verdict, because at that level nothing else will stop the pipeline on your behalf. It was NOT in the default until 2026-08-19: gates-only was ['arch', 'ship'], so the pipeline stopped on HOW to build and on WHETHER to release, and never on WHAT to build — the decision that costs most to reverse, since you learn it was wrong only after six stages have run.

Read the full file on GitHub · 363 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 Changed 6ec89af45d2a
  2. 6d ago Changed 10a3be641f95
  3. 7d ago Changed · +28 lines ffe4d6bcbe82
  4. 8d ago Changed · +26 lines 2efeac2f8174
  5. 12d ago First seen · 309 lines · 89 tokens per session scan A 9df0090fee89

Subscribe to this mod's changes

product-owner is an agent published in the GitHub repository avelikiy/great_cto (93 stars, last pushed today), licensed MIT. It adds 89 tokens to every session and 4,291 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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