brief

brief is a command for coding agents from mrvladd-d/memobank. It costs 14 tokens per session (1,106 once invoked), scanned A, original, MIT.

A short Product Brief that records a clear product idea before a detailed product requirements document (PRD) is written. It acts as the agreed input for later planning.

In plain words
What is it for?
Use it to create or update a one- to two-page description from user notes or brainstorming, and keep the project’s analysis index up to date.
Why use it?
It gives the project a concise shared summary without mixing in a backlog, research report, marketing copy, or implementation plan.

Command

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 commands/mrvladd-d/memobank/brief
Clone the repo
git clone --depth 1 https://github.com/mrvladd-d/memobank

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 brief

README.md
[![agentmods](https://agentmods.dev/badge/commands/mrvladd-d/memobank/brief.svg)](https://agentmods.dev/commands/mrvladd-d/memobank/brief)
Your own site
<a href="https://agentmods.dev/commands/mrvladd-d/memobank/brief"><img src="https://agentmods.dev/badge/commands/mrvladd-d/memobank/brief.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,106 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 $0.00014 $0.01106
Opus 5 $0.00007 $0.00553
Sonnet 5 $0.00003 $0.00221
Haiku 4.5 $0.00001 $0.00111

Measured 5d ago against content hash 864a03b6f251, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

brief 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 5d 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.

skills/_shared/references/commands/brief.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/brief - Product Brief input contract

Product Brief is the input contract for /constitution when needed and for /write-prd. It is not a PRD, backlog, marketing document, research report, or task plan.

0) Scope

Use /brief when the concept is clear enough to summarize, or after /brainstorm.

Allowed outputs:

  • .memory-bank/analysis/index.md
  • .memory-bank/analysis/product-brief.md

Do not create:

  • feature docs
  • task records
  • implementation plans
  • research reports
  • PRFAQ
  • .memory-bank/analysis/assumptions.md
  • command aliases

1) Inputs

Read, when present:

  • latest relevant .memory-bank/analysis/brainstorming/BR-*.md
  • existing .memory-bank/analysis/product-brief.md
  • user-provided concept, notes, or PRD-like text

If brainstorming exists, include it in Source artifacts. If no brainstorming exists, a brief may still be created directly from user input.

2) Create or update Product Brief

Create .memory-bank/analysis/product-brief.md with a concise 1-2 page target.

When creating .memory-bank/analysis/index.md, include:

---
description: Analysis artifact index.
status: active
---

Required structure:

---
description: Product Brief input contract for PRD.
status: draft
type: product-brief
---
# Product Brief

## Metadata
- Status: draft
- Decision: proceed|blocked
- Source artifacts:
  - .memory-bank/analysis/brainstorming/BR-<NNN>.md

## 1. One-liner

## 2. Target Users

## 3. Problem

## 4. Current Alternatives

## 5. Value Proposition

## 6. Product Concept

## 7. MVP Scope

## 8. Non-goals

## 9. Success Metrics

## 10. Constraints

## 11. Assumptions

## 12. Risks

## 13. Open Questions

## 14. PRD Input Summary

## 15. Decision
proceed|blocked

The Product Brief frontmatter is required. type must be product-brief, and status should match the current brief state, starting as draft.

Read the full file on GitHub · 140 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. 5d ago First seen · 140 lines · 14 tokens per session scan A 864a03b6f251

Subscribe to this mod's changes

brief is a command published in the GitHub repository mrvladd-d/memobank (55 stars, last pushed 3mo ago), licensed MIT. It adds 14 tokens to every session and 1,106 once invoked, about $0.0001 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.