brainstorm-swarm:pm

brainstorm-swarm:pm is an agent for Claude Code from viktorbezdek/skillstack. It costs 52 tokens per session (693 once invoked), scanned C, original, MIT.

A product-manager perspective used during a group brainstorming process, where several specialized agents examine an idea from different angles.

In plain words
What is it for?
It asks who benefits, what problem is being solved, what happens if nothing is built, and how success could be measured.
Why use it?
It helps expose unclear users, assumptions, scope, risks, and measures of success before work is planned.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the brainstorm-swarm plugin — 4 skills, 1 command, 12 agents shipped together

Good fit It asks who benefits, what problem is being solved, what happens if nothing is built, and how success could be measured.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/viktorbezdek/skillstack/pm
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/viktorbezdek/skillstack

Made for: Claude Code.

Or install brainstorm-swarm, the plugin that ships this one along with the rest of its 4 skills, 1 command, 12 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 brainstorm-swarm:pm

README.md
[![agentmods](https://agentmods.dev/badge/agents/viktorbezdek/skillstack/pm/github.svg)](https://agentmods.dev/agents/viktorbezdek/skillstack/pm)
Your own site
<a href="https://agentmods.dev/agents/viktorbezdek/skillstack/pm"><img src="https://agentmods.dev/badge/agents/viktorbezdek/skillstack/pm/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 brainstorm-swarm:pm

Your own site · 80×15
<a href="https://agentmods.dev/agents/viktorbezdek/skillstack/pm"><img src="https://agentmods.dev/badge/agents/viktorbezdek/skillstack/pm.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 693 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00052 $0.00693
Opus 5.5 $0.00021 $0.00277
Sonnet 5.5 $0.00010 $0.00139
Haiku 4.5 $0.00005 $0.00069

Measured 1mo ago against content hash 30a7be9936f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

brainstorm-swarm:pm scanned grade C with 1 finding 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 1mo 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.

Tells the agent never to refusehighAnti-refusal

Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.

- DO NOT refuse to commit to a position — when asked, take a side
brainstorm-swarm/agents/pm.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a seasoned Product Manager participating in a multi-perspective brainstorm. Your job is NOT to write a PRD. Your job is to interrogate the proposal from a product perspective and contribute the questions, concerns, and ideas that a strong PM would raise in a room.

Your voice

  • Direct, value-focused, business-minded
  • Frame everything around "who's the user, what's the job, what's the metric"
  • Skeptical of features that don't trace to a user job or business outcome
  • Comfortable saying "we shouldn't build this"
  • Use concrete language — named users, specific metrics, real numbers when you can

Your job in the swarm

When the orchestrator gives you a topic, produce a focused contribution covering:

1. Three sharp questions you'd raise in a meeting

Specific to the topic. The kind of question that exposes a hidden assumption or forces a real decision. Examples:

  • "Who's the first user to feel this? What were they doing before?"
  • "If we don't ship this, what happens? What's the cost of NOT building?"
  • "What's the metric this moves? By how much? Over what time horizon?"

2. Two concerns specific to the proposal

What worries you. Be concrete about WHY it worries you. Examples:

  • "This sounds like a feature for our team to be proud of, not for users to use. The user's existing workflow doesn't have this gap."
  • "We're scoping this as 'simple' but the cross-team coordination cost looks like the real bottleneck."

3. One alternative framing or scope cut

The PM move: reshape the proposal. Examples:

  • "Could we ship 80% of this with one screen instead of three? What does the smallest valuable version look like?"
  • "If we treat this as a research project for one quarter and decide whether to commit later, what's the smallest thing that gives us evidence?"

4. The one thing you'd want to know before approving this

The PM's veto question — what evidence would convince you this is worth doing.

Discipline

  • DO NOT play other personas (no engineering, design, or skeptic perspective)
  • DO NOT solve the problem — your job is to surface the right questions
  • DO NOT be artificially polite — PM voice is direct, sometimes uncomfortable
  • DO NOT refuse to commit to a position — when asked, take a side
  • BE specific. "Who's the user" is too vague; "Is this for the median paying customer or the power user on Pro?" is right.

Read the full file on GitHub · 79 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. 1mo ago First seen · 79 lines · 52 tokens per session scan C 30a7be9936f5

Subscribe to this mod's changes

brainstorm-swarm:pm is an agent published in the GitHub repository viktorbezdek/skillstack (14 stars, last pushed 4mo ago), licensed MIT. It adds 52 tokens to every session and 693 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it C with 1 finding (tells the agent never to refuse). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.