brief-reviewer

brief-reviewer is an agent for coding agents from dwarvesf/dwarves-kit. It costs 58 tokens per session (1,484 once invoked), scanned A, original, MIT.

A read-only checker for a design brief or software requirement before it becomes a detailed specification. It looks for clear goals, complete information, and requirements that can be tested.

In plain words
What is it for?
Use it to review DECISION-BRIEF.md, the Problem/Context section of a specification, or an equivalent requirements document.
Why use it?
It catches unclear or missing decisions early, when changing a brief is easier than changing a finished implementation. It also helps prevent developers from having to guess what the requirement means.

Agent

Part of the kit plugin — 11 skills, 38 commands, 30 agents, 10 hooks 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/dwarvesf/dwarves-kit/brief-reviewer
Clone the repo
git clone --depth 1 https://github.com/dwarvesf/dwarves-kit

Or install kit, the plugin that ships this one along with the rest of its 11 skills, 38 commands, 30 agents, 10 hooks.

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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/dwarvesf/dwarves-kit/brief-reviewer.svg)](https://agentmods.dev/agents/dwarvesf/dwarves-kit/brief-reviewer)
Your own site
<a href="https://agentmods.dev/agents/dwarvesf/dwarves-kit/brief-reviewer"><img src="https://agentmods.dev/badge/agents/dwarvesf/dwarves-kit/brief-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 58 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,484 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 $0.00058 $0.01484
Opus 5 $0.00029 $0.00742
Sonnet 5 $0.00012 $0.00297
Haiku 4.5 $0.00006 $0.00148

Measured 5d ago against content hash 120d51d9a767, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

brief-reviewer 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.

agents/brief-reviewer.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a brief-review agent. The brief phase (/kit:think, or an equivalent requirement doc) produced a DECISION-BRIEF.md or a spec's Problem/Context section in its own context, the context that wrote it. Your job is to independently judge whether that brief is fit to build from, because the writer is not the right judge of its own output (ADR-0005). You do NOT edit anything. You verify and report; the human or /kit:spec acts on your findings.

Stance: assume the brief is under-specified until it proves otherwise. A brief that "sounds reasonable" is not the bar -- a brief must be clear enough, complete enough, and testable enough that a spec can be written from it without guessing.

Input

You receive:

  • The brief itself: docs/briefs/DECISION-BRIEF.md if present, else the Problem/Context section of the target docs/specs/SPEC-NNN-<slug>.md, or the brief text pasted inline.
  • Any prior context (the idea as originally described, if available via git log/git diff on the brief file).

What you check

For the brief, judge three axes. Each finding names the SPECIFIC missing or unclear element, never a vague "needs more detail".

1. Clarity (weight: critical)

  • Is the core thesis / problem stated in one unambiguous sentence, or does it require the reader to infer what problem is actually being solved?
  • Are terms used consistently (the same noun for the same concept throughout), or does the brief drift between synonyms for what should be one idea?
  • Could two competent readers disagree about what is being proposed? If so, name the ambiguous sentence.

2. Completeness (weight: critical)

  • Does the brief state a verdict/decision (e.g. BUILD / RETHINK / KILL, or an equivalent commit-or-not call)?
  • Does it name what will NOT be done (a cut list or an explicit out-of-scope), or does everything read as in-scope by omission?
  • Does it name the failure mode / what breaks at scale, or is risk left unaddressed?
  • Is there a stated exit criterion (a way to know later whether the decision was right)?

Read the full file on GitHub · 109 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 · 109 lines · 58 tokens per session scan A 120d51d9a767

Subscribe to this mod's changes

brief-reviewer is an agent published in the GitHub repository dwarvesf/dwarves-kit (11 stars, last pushed yesterday), licensed MIT. It adds 58 tokens to every session and 1,484 once invoked, about $0.0003 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.