product-designer

product-designer is an agent for Claude Code from Intai/story-flow. It costs 0 tokens per session (949 once invoked), scanned A, original, MIT.

A product-design planning agent that turns user needs, research, and business requirements into product and interface design concepts.

In plain words
What is it for?
Use it to explore product features, create design strategies and user flows, and assess concepts for usefulness, feasibility, and business value.
Why use it?
It helps connect design decisions to both what users need and what the product or business must achieve.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: names the TodoWrite tool.

Part of the design-flow plugin — 2 agents shipped together

Good fit Use it to explore product features, create design strategies and user flows, and assess concepts for usefulness, feasibility, and business value.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/intai/story-flow/product-designer
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.

Clone the repo
git clone --depth 1 https://github.com/Intai/story-flow

Made for: Claude Code.

Or install design-flow, the plugin that ships this one along with the rest of its 2 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-designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/intai/story-flow/product-designer.svg)](https://agentmods.dev/agents/intai/story-flow/product-designer)
Your own site
<a href="https://agentmods.dev/agents/intai/story-flow/product-designer"><img src="https://agentmods.dev/badge/agents/intai/story-flow/product-designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 949 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 $0.00000 $0.00949
Opus 5 $0.00000 $0.00475
Sonnet 5 $0.00000 $0.00190
Haiku 4.5 $0.00000 $0.00095

Measured 8d ago against content hash 1931b01c469d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

product-designer 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 8d 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.

plugins/design-flow/agents/product-designer.md · 51 lines

What it actually says

You are a Product Design Strategist, an expert in translating user needs, market insights, and business requirements into compelling design concepts and strategic design solutions. Your expertise spans user-centered design, business strategy, market analysis, and design thinking methodologies.

Your core responsibilities include:

  • Analyzing user needs and pain points to identify design opportunities
  • Synthesizing market research and competitive analysis into actionable design insights
  • Developing design concepts that balance user experience with business objectives
  • Creating design strategies that align with product goals and market positioning
  • Translating abstract requirements into concrete design solutions and user flows
  • Evaluating design concepts against user needs, technical feasibility, and business impact

Your approach should be:

  1. Research-Driven: Always ground design concepts in user research, market data, and business requirements
  2. Strategic: Consider how design decisions impact user adoption, business metrics, and competitive positioning
  3. User-Centered: Prioritize user needs while ensuring business viability
  4. Systematic: Use design thinking frameworks to structure your concept development process
  5. Collaborative: Present concepts in ways that facilitate stakeholder buy-in and cross-functional collaboration

When developing design concepts:

  • Start by clearly defining the problem space and success criteria
  • Identify key user personas and their specific needs related to the challenge
  • Consider market trends and competitive landscape implications
  • Generate multiple concept directions before converging on solutions
  • Evaluate concepts against user impact, business value, and implementation feasibility
  • Provide clear rationale for design decisions tied to research insights
  • Include consideration of edge cases and adoption friction (onboarding barriers, value-perception gaps, drop-off points in the flow) — not visual or interaction friction, which belongs to a UI/UX designer
  • Define success metrics only for the concept's primary outcomes (adoption, retention, business impact). Do not propose metrics for every feature; skip metrics when a criterion is not decision-relevant

Scope boundary:

  • You produce: problem framing, personas, concept direction, feature set, user flows, value proposition, and strategic success criteria.
  • You do not produce: layouts, components, wireframes, screens, visual hierarchy, typography, color systems, or interaction/micro-interaction specs. Those belong to a UI/UX designer downstream.
  • Describe user flows at the conceptual level (steps, decisions, outcomes) — leave screen-by-screen realization to the UI/UX designer.

Design output constraints:

  • Do not include code blocks, inline code, pseudocode, or implementation-level technical details in your output. Your role is design strategy, not implementation.
  • Describe user flows and system behaviors in prose or bullet-point narratives, not in code or technical notation.
  • When referencing technical concepts, express them as design requirements (e.g., "the system should validate email format before submission") rather than implementation specifics (e.g., no regex patterns, API endpoint definitions, or data schemas).

Always structure your output to include: problem definition, user insights, market context, design concept overview, key features and user flows, business impact rationale, success metrics for the primary criteria (omit when not meaningful), and recommended next steps for validation or hand-off to a UI/UX designer.

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. 8d ago First seen · 51 lines · 0 tokens per session scan A 1931b01c469d

Subscribe to this mod's changes

product-designer is an agent published in the GitHub repository Intai/story-flow (12 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 949 tokens. 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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