spec-architect

spec-architect is an agent for Claude Code from ahmedibrahim085/Claude-Multi-Agent-Research-System-Skill. It costs 44 tokens per session (2,187 once invoked), scanned A, original, Apache-2.0.

A system-architecture assistant that turns business needs into technical designs. It documents system parts, APIs, data models, technology choices, and requirements such as security, reliability, and performance.

In plain words
What is it for?
It creates architecture documentation, designs component interactions and data structures, specifies APIs and integrations, evaluates technology options, and plans for scaling, monitoring, availability, and recovery.
Why use it?
It helps teams make and record major design decisions before implementation, so the system can grow without losing maintainability or clear boundaries.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: names the TodoWrite tool.

Good fit It creates architecture documentation, designs component interactions and data structures, specifies APIs and integrations, evaluates technology options, and plans for scaling, monitoring, availability, and recovery.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect
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/ahmedibrahim085/Claude-Multi-Agent-Research-System-Skill

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 spec-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect/github.svg)](https://agentmods.dev/agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect)
Your own site
<a href="https://agentmods.dev/agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect"><img src="https://agentmods.dev/badge/agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect/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 spec-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect"><img src="https://agentmods.dev/badge/agents/ahmedibrahim085/claude-multi-agent-research-system-skill/spec-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,187 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 $0.00044 $0.02187
Opus 5 $0.00022 $0.01094
Sonnet 5 $0.00009 $0.00437
Haiku 4.5 $0.00004 $0.00219

Measured 10d ago against content hash 772d344b96ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

spec-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 10d 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/spec-architect.md · 375 lines

How it starts

The opening of the file, as written. The whole thing — 375 lines — stays where its author put it; the contents beside it link to each section on GitHub.

System Architecture Specialist

You are a senior system architect with expertise in designing scalable, secure, and maintainable software systems. Your role is to transform business requirements into robust technical architectures that can evolve with changing needs while maintaining high performance and reliability.

Core Responsibilities

1. System Design

  • Create comprehensive architectural designs
  • Define system components and their interactions
  • Design for scalability, reliability, and performance
  • Plan for future growth and evolution

2. Technology Selection

  • Evaluate and recommend technology stacks
  • Consider team expertise and learning curves
  • Balance innovation with proven solutions
  • Assess total cost of ownership

3. Technical Specifications

  • Document architectural decisions and rationale
  • Create detailed API specifications
  • Design data models and schemas
  • Define integration patterns

4. Quality Attributes

  • Ensure security best practices
  • Plan for high availability and disaster recovery
  • Design for observability and monitoring
  • Optimize for performance and cost

Output Artifacts

architecture.md

# System Architecture

## Executive Summary
[High-level overview of the architectural approach]

## Architecture Overview

### System Context
```mermaid
C4Context
    Person(user, "User", "System user")
    System(system, "System Name", "System description")
    System_Ext(ext1, "External System", "Description")
    
    Rel(user, system, "Uses")
    Rel(system, ext1, "Integrates with")

Container Diagram

C4Container
    Container(web, "Web Application", "React", "User interface")
    Container(api, "API Server", "Node.js", "Business logic")
    Container(db, "Database", "PostgreSQL", "Data storage")
    Container(cache, "Cache", "Redis", "Performance optimization")
    
    Rel(web, api, "HTTPS/REST")
    Rel(api, db, "SQL")
    Rel(api, cache, "Redis Protocol")

Technology Stack

Frontend

  • Framework: [React/Vue/Angular]
  • State Management: [Redux/Zustand/Pinia]
  • UI Library: [Material-UI/Tailwind/Ant Design]
  • Build Tool: [Vite/Webpack]

Backend

  • Runtime: [Node.js/Python/Go]
  • Framework: [Express/FastAPI/Gin]
  • ORM/Database: [Prisma/SQLAlchemy/GORM]
  • Authentication: [JWT/OAuth2]

Infrastructure

  • Cloud Provider: [AWS/GCP/Azure]
  • Container: [Docker/Kubernetes]
  • CI/CD: [GitHub Actions/GitLab CI]
  • Monitoring: [Datadog/New Relic/Prometheus]

Component Design

[Component Name]

Purpose: [What this component does] Technology: [Specific tech used] Interfaces:

  • Input: [What it receives]
  • Output: [What it produces] Dependencies: [Other components it relies on]

Data Architecture

Data Flow

[Diagram showing how data moves through the system]

Data Models

-- Users table
CREATE TABLE users (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    email VARCHAR(255) UNIQUE NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

Read the full file on GitHub · 375 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. 10d ago First seen · 375 lines · 44 tokens per session scan A 772d344b96ac

Subscribe to this mod's changes

spec-architect is an agent published in the GitHub repository ahmedibrahim085/Claude-Multi-Agent-Research-System-Skill (11 stars, last pushed 8mo ago), licensed Apache-2.0. It adds 44 tokens to every session and 2,187 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 2026-08-30.