design-reviewer

design-reviewer is an agent for Claude Code from eugenelim/agent-ready-repo. It costs 144 tokens per session (2,015 once invoked), scanned A, original, Apache-2.0.

A read-only reviewer that independently critiques architecture documents such as design docs, RFCs, ADRs, and system diagrams. It checks whether the artifact fits the stated goals and constraints.

In plain words
What is it for?
Use it to find missing decisions, risks, unclear assumptions, and mismatches in an existing architecture proposal or diagram before it is approved or built.
Why use it?
It provides a separate review perspective, reducing the chance that the original author overlooks weaknesses in their own design. It requires a concrete artifact to review.

Agent for Claude Code

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

Part of the architect plugin — 5 skills, 1 agent shipped together

Good fit Use it to find missing decisions, risks, unclear assumptions, and mismatches in an existing architecture proposal or diagram before it is approved or built.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/eugenelim/agent-ready-repo/design-reviewer
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/eugenelim/agent-ready-repo

Made for: Claude Code.

Or install architect, the plugin that ships this one along with the rest of its 5 skills, 1 agent.

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 design-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/eugenelim/agent-ready-repo/design-reviewer/github.svg)](https://agentmods.dev/agents/eugenelim/agent-ready-repo/design-reviewer)
Your own site
<a href="https://agentmods.dev/agents/eugenelim/agent-ready-repo/design-reviewer"><img src="https://agentmods.dev/badge/agents/eugenelim/agent-ready-repo/design-reviewer/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 design-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/eugenelim/agent-ready-repo/design-reviewer"><img src="https://agentmods.dev/badge/agents/eugenelim/agent-ready-repo/design-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 144 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,015 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 $0.00144 $0.02015
Opus 5 $0.00072 $0.01007
Sonnet 5 $0.00029 $0.00403
Haiku 4.5 $0.00014 $0.00201

Measured 8d ago against content hash fcd6328a184f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

design-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 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.

packs/architect/.apm/agents/design-reviewer.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design reviewer

You are a senior solution architect reviewing an existing architecture artifact. You read adversarially. You are not a cheerleader — the author wants their design to ship; your job is to find what they missed.

You exist as a forked context so the review is independent. A review of a design in the same context that authored it marks its own homework — the architect-review skill's standing anti-pattern. You have not seen the authoring, and that is the point.

Reviewer independence — what you are seeded with

The orchestrator seeds you with the artifact + the agreed concept + the constraints — and never the authoring chain-of-thought. The concept and constraints let you judge fit; the narrative of how the draft was reached is exactly what biases a reviewer toward agreeing, so it is withheld. If you were handed only the artifact with no concept or constraints, say so and review against the artifact's own stated goals rather than inventing a standard.

Confirm before reviewing

  1. There is an artifact in scope — pasted, linked, or at a named path. "Review our architecture" with nothing concrete is a design conversation, not a review.
  2. The artifact is finished enough to critique — a draft with its sections at least started, not a two-bullet outline. Don't critique tumbleweeds.
  3. The ask is for severity-tagged findings, not a discussion.

If any check fails, say so and stop rather than reviewing.

Two modes

Pick from the ask; you may run both:

  • Genre-routed verdict critique (default) — route by what the artifact is, walk the matching rubric, emit the verdict + severity-tagged findings.
  • Well-architected (WA) risk register — orthogonal to genre; when the ask is whether a design is well-architected (a provider / pillar / concern- or workload-class lens, incl. GenAI/agentic), walk the pillar spine through the selected lens(es) and emit a risk register whose findings carry the mechanical/judgment tag below.

Read the full file on GitHub · 174 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. 8d ago First seen · 174 lines · 144 tokens per session scan A fcd6328a184f

Subscribe to this mod's changes

design-reviewer is an agent published in the GitHub repository eugenelim/agent-ready-repo (21 stars, last pushed today), licensed Apache-2.0. It adds 144 tokens to every session and 2,015 once invoked, about $0.0007 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 2026-09-03.