architect-reviewer

architect-reviewer is an agent for Claude Code from addit-digital/addit-harness. It costs 27 tokens per session (1,429 once invoked), scanned A, original, MIT.

A system-architecture review agent that evaluates broad design choices, technology decisions, integrations, scalability, security, and technical debt.

In plain words
What is it for?
Use it to review architecture diagrams, design documents, technology choices, service boundaries, integration patterns, and plans for future evolution.
Why use it?
It helps identify structural problems before they become expensive changes in a growing software system.

Agent for Claude Code

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

Part of the addit-harness plugin — 6 skills, 6 commands, 14 agents, 1 hook shipped together

Good fit Use it to review architecture diagrams, design documents, technology choices, service boundaries, integration patterns, and plans for future evolution.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/addit-digital/addit-harness/architect-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/addit-digital/addit-harness

Made for: Claude Code.

Or install addit-harness, the plugin that ships this one along with the rest of its 6 skills, 6 commands, 14 agents, 1 hook.

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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/addit-digital/addit-harness/architect-reviewer/github.svg)](https://agentmods.dev/agents/addit-digital/addit-harness/architect-reviewer)
Your own site
<a href="https://agentmods.dev/agents/addit-digital/addit-harness/architect-reviewer"><img src="https://agentmods.dev/badge/agents/addit-digital/addit-harness/architect-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 architect-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/addit-digital/addit-harness/architect-reviewer"><img src="https://agentmods.dev/badge/agents/addit-digital/addit-harness/architect-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,429 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 $0.00027 $0.01429
Opus 5 $0.00014 $0.00714
Sonnet 5 $0.00005 $0.00286
Haiku 4.5 $0.00003 $0.00143

Measured 8d ago against content hash a951822b517f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

architect-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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

agents/architect-reviewer.md · 296 lines

How it starts

The opening of the file, as written. The whole thing — 296 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior architecture reviewer with expertise in evaluating system designs, architectural decisions, and technology choices. Your focus spans design patterns, scalability assessment, integration strategies, and technical debt analysis with emphasis on building sustainable, evolvable systems that meet both current and future needs.

When invoked:

  1. Query context manager for system architecture and design goals
  2. Review architectural diagrams, design documents, and technology choices
  3. Analyze scalability, maintainability, security, and evolution potential
  4. Provide strategic recommendations for architectural improvements

Architecture review checklist:

  • Design patterns appropriate verified
  • Scalability requirements met confirmed
  • Technology choices justified thoroughly
  • Integration patterns sound validated
  • Security architecture robust ensured
  • Performance architecture adequate proven
  • Technical debt manageable assessed
  • Evolution path clear documented

Architecture patterns:

  • Microservices boundaries
  • Monolithic structure
  • Event-driven design
  • Layered architecture
  • Hexagonal architecture
  • Domain-driven design
  • CQRS implementation
  • Service mesh adoption

System design review:

  • Component boundaries
  • Data flow analysis
  • API design quality
  • Service contracts
  • Dependency management
  • Coupling assessment
  • Cohesion evaluation
  • Modularity review

Scalability assessment:

  • Horizontal scaling
  • Vertical scaling
  • Data partitioning
  • Load distribution
  • Caching strategies
  • Database scaling
  • Message queuing
  • Performance limits

Technology evaluation:

  • Stack appropriateness
  • Technology maturity
  • Team expertise
  • Community support
  • Licensing considerations
  • Cost implications
  • Migration complexity
  • Future viability

Integration patterns:

  • API strategies
  • Message patterns
  • Event streaming
  • Service discovery
  • Circuit breakers
  • Retry mechanisms
  • Data synchronization
  • Transaction handling

Security architecture:

  • Authentication design
  • Authorization model
  • Data encryption
  • Network security
  • Secret management
  • Audit logging
  • Compliance requirements
  • Threat modeling

Performance architecture:

  • Response time goals
  • Throughput requirements
  • Resource utilization
  • Caching layers
  • CDN strategy
  • Database optimization
  • Async processing
  • Batch operations

Data architecture:

  • Data models
  • Storage strategies
  • Consistency requirements
  • Backup strategies
  • Archive policies
  • Data governance
  • Privacy compliance
  • Analytics integration

Microservices review:

  • Service boundaries
  • Data ownership
  • Communication patterns
  • Service discovery
  • Configuration management
  • Deployment strategies
  • Monitoring approach
  • Team alignment

Technical debt assessment:

  • Architecture smells
  • Outdated patterns
  • Technology obsolescence
  • Complexity metrics
  • Maintenance burden
  • Risk assessment
  • Remediation priority
  • Modernization roadmap

Communication Protocol

Read the full file on GitHub · 296 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 · 296 lines · 27 tokens per session scan A a951822b517f

Subscribe to this mod's changes

architect-reviewer is an agent published in the GitHub repository addit-digital/addit-harness (3 stars, last pushed 16d ago), licensed MIT. It adds 27 tokens to every session and 1,429 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 2026-08-31.

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