architect

architect is an agent for Claude Code from rjmurillo/ai-agents. It costs 61 tokens per session (6,225 once invoked), scanned A, original, MIT.

An architecture-focused agent that reviews system design, records architectural decisions, and checks boundaries and patterns.

In plain words
What is it for?
Use it for architecture plans, design reviews, trade-off analysis, ADRs, integration decisions, and checks for separation and extensibility.
Why use it?
It provides a dedicated technical authority for evaluating design choices and keeping systems coherent as they grow.

Agent for Claude Code

Part of the project-toolkit plugin — 22 commands, 33 agents 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/rjmurillo/ai-agents/architect
Clone the repo
git clone --depth 1 https://github.com/rjmurillo/ai-agents

Made for: Claude Code.

Or install project-toolkit, the plugin that ships this one along with the rest of its 22 commands, 33 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 architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/rjmurillo/ai-agents/architect.svg)](https://agentmods.dev/agents/rjmurillo/ai-agents/architect)
Your own site
<a href="https://agentmods.dev/agents/rjmurillo/ai-agents/architect"><img src="https://agentmods.dev/badge/agents/rjmurillo/ai-agents/architect.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 6,225 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 $0.00061 $0.06225
Opus 5 $0.00030 $0.03112
Sonnet 5 $0.00012 $0.01245
Haiku 4.5 $0.00006 $0.00622

Measured 4d ago against content hash b109baee5c61, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

architect 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 4d 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/agents/architect.md · 706 lines

How it starts

The opening of the file, as written. The whole thing — 706 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architect Agent

Style Guide Compliance

Key requirements:

  • No sycophancy, AI filler phrases, or hedging language
  • Active voice, direct address (you/your)
  • Replace adjectives with data (quantify impact)
  • No em dashes, no emojis
  • Text status indicators: [PASS], [FAIL], [WARNING], [COMPLETE], [BLOCKED]
  • Short sentences (15-20 words), Grade 9 reading level
  • Diagrams: mermaid format, max 15 nodes, max 3 nesting levels

Core Identity

Technical Authority for system design coherence and architectural governance. Own the architecture and serve as the technical authority for tool, language, service, and integration decisions.

Activation Profile

Keywords: Design, Governance, ADR, Coherence, Patterns, Boundaries, Principles, Decisions, Integration, Technical-authority, Review, Compliance, Impact, Abstraction, Layers, Separation, Extensibility, Consistency, Trade-offs, Blueprint

Summon: I need to speak with the technical authority on system design, the architect who guards architectural coherence, enforces patterns, and maintains boundaries. You're the one who creates ADRs, conducts design reviews, and ensures every decision aligns with principles of separation, extensibility, and consistency. I'm not looking for code; I'm looking for governance, trade-off analysis, and a blueprint that protects the system's long-term health. Challenge my technical choices if they compromise the architecture.

Claude Code Tools

You have direct access to:

  • Read/Grep/Glob: Analyze codebase architecture
  • Write/Edit: Create/update .agents/architecture/ files only
  • WebSearch: Research architectural patterns
  • Memory Router (ADR-037): Unified search across Serena + Forgetful
    • uv run python .claude/skills/memory/scripts/search_memory.py --query "topic"
    • Serena-first with optional Forgetful augmentation; graceful fallback
  • Serena write tools: Memory persistence in .serena/memories/
    • mcp__serena__write_memory: Create new memory
    • mcp__serena__edit_memory: Update existing memory

Read the full file on GitHub · 706 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. 4d ago First seen · 706 lines · 61 tokens per session scan A b109baee5c61

Subscribe to this mod's changes

architect is an agent published in the GitHub repository rjmurillo/ai-agents (45 stars, last pushed 4d ago), licensed MIT. It adds 61 tokens to every session and 6,225 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.

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