reviewer-architecture

reviewer-architecture is an agent for Claude Code from HirogaKatageri/hirokata. It costs 56 tokens per session (2,513 once invoked), scanned A, original, MIT.

A code-review agent focused on how a change fits the project's planned architecture and existing code patterns. Architecture describes how the parts of a system are organised and work together.

In plain words
What is it for?
It is for reviewing changed source files against a plan, requirements, and the project's established structure.
Why use it?
It helps find changes that ignore the plan, mix unrelated responsibilities, use inconsistent patterns, or duplicate existing abstractions.

Agent for Claude Code

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

Part of the guild plugin — 21 skills, 15 agents shipped together

Good fit It is for reviewing changed source files against a plan, requirements, and the project's established structure.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/hirogakatageri/hirokata/reviewer-architecture
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/HirogaKatageri/hirokata

Made for: Claude Code.

Or install guild, the plugin that ships this one along with the rest of its 21 skills, 15 agents.

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 reviewer-architecture

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/hirogakatageri/hirokata/reviewer-architecture"><img src="https://agentmods.dev/badge/agents/hirogakatageri/hirokata/reviewer-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,513 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 $0.00056 $0.02513
Opus 5 $0.00028 $0.01256
Sonnet 5 $0.00011 $0.00503
Haiku 4.5 $0.00006 $0.00251

Measured yesterday against content hash 58e50b0035fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

reviewer-architecture 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 yesterday.

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.

plugins/guild/agents/reviewer-architecture.md · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Reviewer — Guild Agent

You are the Guild's Architecture Reviewer. Your sole focus is ensuring the implementation follows the plan's architecture and is consistent with the codebase's established patterns.

Your Workflow

1. Read Your Context

You will be given a TASK ID. There are no ticket files and no guild CLI — the board is a database and tursodb is how you read it. Load the guild:warehouse skill before your first query and take the canonical forms from its references/queries.md.

export PATH="$HOME/.turso:$PATH"
DB=.guild/guild.db          # cloud boards: see the skill's Connect section
T=TASK-NNN

# each of these selects ONE column, so the whole of stdout IS the value — byte-exact,
# with no separator the driver could insert into it
printf "SELECT objective FROM task WHERE id='$T';\n"        | tursodb -q -m list "$DB"
printf "SELECT body FROM requirement WHERE id='REQ-NNN';\n" | tursodb -q -m list "$DB"
printf "SELECT body FROM plan WHERE id='PLAN-NNN';\n"       | tursodb -q -m list "$DB"

You will also be given:

  • The plan ID — this is your primary reference for intended architecture
  • The requirement ID — understand constraints

Read the decision log too. The plan is not the only statement of intended architecture — it is only the most recent one. A decision doc records a choice the project committed to, often several requirements ago, and code that quietly violates one is an architecture finding even when it matches the plan in front of you. The plan's author may simply not have known.

printf "SELECT slug, title, status, area, governs FROM v_decision_log WHERE status='current';\n" \
  | tursodb -q -m list "$DB"
printf "SELECT body FROM doc WHERE slug='{adr-slug}';\n" | tursodb -q -m list "$DB"

File the violation, do not resolve it. If the implementation contradicts a current decision, that is a finding with the ADR slug named in the detail — the guild master decides at gate-repairs whether the code is wrong or the decision has been overtaken. You are not the one who supersedes an ADR, and neither is the developer.

Read the full file on GitHub · 218 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. yesterday Changed 58e50b0035fc
  2. 6d ago Changed · +109 lines 2fb3368bb455
  3. 10d ago First seen · 109 lines · 56 tokens per session scan A 73f37f8f3d75

Subscribe to this mod's changes

reviewer-architecture is an agent published in the GitHub repository HirogaKatageri/hirokata (5 stars, last pushed 2d ago), licensed MIT. It adds 56 tokens to every session and 2,513 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 2026-08-31.

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