architect-review

architect-review is a skill for Claude Code from kumaran-is/claude-code-onboarding. It costs 47 tokens per session (1,412 once invoked), scanned A, original, MIT.

A specialist review guide for checking system architecture and proposed design changes. It examines service boundaries, distributed-system patterns, scalability, resilience, and maintainability.

In plain words
What is it for?
Use it to review existing architecture, assess major system changes, examine microservices or event-driven designs, and document recommendations.
Why use it?
It helps identify design problems and trade-offs before they become expensive code or infrastructure changes.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to review existing architecture, assess major system changes, examine microservices or event-driven designs, and document recommendations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kumaran-is/claude-code-onboarding/architect-review
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.

Any agent
npx skills add kumaran-is/claude-code-onboarding --skill architect-review
Clone the repo
git clone --depth 1 https://github.com/kumaran-is/claude-code-onboarding

Made for: Claude Code.

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 architect-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/kumaran-is/claude-code-onboarding/architect-review/github.svg)](https://agentmods.dev/skills/kumaran-is/claude-code-onboarding/architect-review)
Your own site
<a href="https://agentmods.dev/skills/kumaran-is/claude-code-onboarding/architect-review"><img src="https://agentmods.dev/badge/skills/kumaran-is/claude-code-onboarding/architect-review/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 architect-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/kumaran-is/claude-code-onboarding/architect-review"><img src="https://agentmods.dev/badge/skills/kumaran-is/claude-code-onboarding/architect-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,412 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 $0.00047 $0.01412
Opus 5 $0.00023 $0.00706
Sonnet 5 $0.00009 $0.00282
Haiku 4.5 $0.00005 $0.00141

Measured 6d ago against content hash 30c13bae5881, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

architect-review 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 6d 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.

.claude/skills/architect-review/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Iron Law: Never approve an architecture without evidence-based analysis; always provide concrete trade-offs with file:line references, not opinions.

Architect Review Skill

Elite architectural review specialist. Assesses architectural integrity, scalability, and maintainability across complex distributed systems. Identifies anti-patterns, evaluates compliance with architecture principles, and produces actionable recommendations with ADRs.

Scope: This skill is for reviewing existing designs and proposed changes. For designing new architecture, use architecture-design. For full DDD analysis, use ddd-architect. For 5-phase plan review, use plan-mode-review.

When to Use

  • Reviewing system architecture or major design changes before implementation
  • Evaluating scalability, resilience, or maintainability impact of a proposed change
  • Assessing architecture compliance with Clean Architecture / Hexagonal / DDD / microservices principles
  • Identifying architectural anti-patterns in existing code or design docs
  • Reviewing distributed system design (Saga, Outbox, CQRS, event sourcing)

When NOT to Use

  • Small code review without architectural impact → use code-reviewer
  • Designing new architecture from scratch → use architecture-design
  • 5-phase plan gate review → use plan-mode-review

Review Process

  1. Gather context — Identify system goals, constraints, and current state
  2. Assess impact — Rate each concern: HIGH / MEDIUM / LOW
  3. Evaluate compliance — Check against SOLID, DDD, Clean Architecture, or distributed patterns as applicable
  4. Identify violations — Anti-patterns, missing resilience, security gaps, data architecture issues
  5. Recommend improvements — Specific refactoring suggestions with concrete next steps
  6. Document — Produce ADR for irreversible or significant decisions (delegate to architecture-decision-records)

Output Format

## Architecture Review: [System/Feature Name]

### Context
[System goals, constraints, current state]

### Impact Assessment
| Area | Rating | Evidence |
|------|--------|----------|
| [concern] | HIGH/MEDIUM/LOW | [file:line or design element] |

### Pattern Compliance
✅ [What is correct]
❌ [Violations with specific evidence]

### Anti-Patterns Detected
- [Pattern name]: [Description] — [Concrete fix]

### Recommendations
1. [Specific action with implementation guidance]

### ADRs Required
- ADR-XXXX: [Title] — [Decision to document]

Read the full file on GitHub · 149 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. 6d ago First seen · 149 lines · 47 tokens per session scan A 30c13bae5881

Subscribe to this mod's changes

architect-review is a skill published in the GitHub repository kumaran-is/claude-code-onboarding (35 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 1,412 once invoked, about $0.0002 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.