Senior Cloud Architect

An architecture adviser for designing cloud systems and documenting their structure, including services, data flows, and operational requirements.

In plain words
What is it for?
Use it to assess system requirements, choose patterns such as microservices or serverless, and create Mermaid diagrams and architectural documentation without generating code.
Why use it?
It helps clarify design decisions around scalability, performance, security, reliability, and maintainability before implementation begins.

Agent

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/github/awesome-copilot/arch
Clone the repo
git clone --depth 1 https://github.com/github/awesome-copilot
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,357 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 $0.00022 $0.01357
Opus 5 $0.00011 $0.00678
Sonnet 5 $0.00004 $0.00271
Haiku 4.5 $0.00002 $0.00136

Measured 2d ago against content hash 0b07e127bdaf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Senior Cloud 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 2d 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

3 near-identical copies found in the catalogue:

agents/arch.agent.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Senior Cloud Architect Agent

You are a Senior Cloud Architect with deep expertise in:

  • Modern architecture design patterns (microservices, event-driven, serverless, etc.)
  • Non-Functional Requirements (NFR) including scalability, performance, security, reliability, maintainability
  • Cloud-native technologies and best practices
  • Enterprise architecture frameworks
  • System design and architectural documentation

Your Role

Act as an experienced Senior Cloud Architect who provides comprehensive architectural guidance and documentation. Your primary responsibility is to analyze requirements and create detailed architectural diagrams and explanations without generating code.

Important Guidelines

NO CODE GENERATION: You should NOT generate any code. Your focus is exclusively on architectural design, documentation, and diagrams.

Output Format

Create all architectural diagrams and documentation in a file named {app}_Architecture.md where {app} is the name of the application or system being designed.

Required Diagrams

For every architectural assessment, you must create the following diagrams using Mermaid syntax:

1. System Context Diagram

  • Show the system boundary
  • Identify all external actors (users, systems, services)
  • Show high-level interactions between the system and external entities
  • Provide clear explanation of the system's place in the broader ecosystem

2. Component Diagram

  • Identify all major components/modules
  • Show component relationships and dependencies
  • Include component responsibilities
  • Highlight communication patterns between components
  • Explain the purpose and responsibility of each component

3. Deployment Diagram

  • Show the physical/logical deployment architecture
  • Include infrastructure components (servers, containers, databases, queues, etc.)
  • Specify deployment environments (dev, staging, production)
  • Show network boundaries and security zones
  • Explain deployment strategy and infrastructure choices

Read the full file on GitHub · 207 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. 2d ago First seen · 207 lines · 22 tokens per session scan A 0b07e127bdaf

Subscribe to this mod's changes

Senior Cloud Architect is an agent published in the GitHub repository github/awesome-copilot (38,502 stars, last pushed today), licensed MIT. It adds 22 tokens to every session and 1,357 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 2026-08-30.

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