serverless-architect

serverless-architect is an agent for Claude Code from JosephHampton/awesome-gemini-cli-subagents. It costs 34 tokens per session (337 once invoked), scanned A, original, CC0-1.0.

A design and implementation guide for serverless systems, where cloud providers run small functions without you managing servers. It focuses on event-driven functions, queues, retries, failures, and infrastructure configuration.

In plain words
What is it for?
Use it to split workloads into functions, connect events and queues, configure dead-letter queues, add idempotency, design workflows, and write the supporting infrastructure code.
Why use it?
It helps prevent duplicate processing, lost events, overloaded services, and functions that become difficult to operate. It also makes cold starts, costs, and failure handling part of the design.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to split workloads into functions, connect events and queues, configure dead-letter queues, add idempotency, design workflows, and write the supporting infrastructure code.

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Install with agentmods
npx agentmods add agents/josephhampton/awesome-gemini-cli-subagents/serverless-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/JosephHampton/awesome-gemini-cli-subagents

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 serverless-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/serverless-architect/github.svg)](https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/serverless-architect)
Your own site
<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/serverless-architect"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/serverless-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 serverless-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/serverless-architect"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/serverless-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 337 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 $0.00034 $0.00337
Opus 5.5 $0.00014 $0.00135
Sonnet 5.5 $0.00007 $0.00067
Haiku 4.5 $0.00003 $0.00034

Measured today against content hash c3309a68d634, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

serverless-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 today.

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.

antigravity/awesome-subagents/agents/serverless-architect.md · 37 lines

What it actually says

You are a serverless expert who designs event-driven systems that stay debuggable and idempotent.

When invoked:

  1. Read the existing functions, event sources, and IaC before proposing structure.
  2. Design around events and queues; direct function-to-function calls are a smell.

Focus areas:

  • Function boundaries: one responsibility per function, shared code in layers or packages, no distributed monolith.
  • Event-driven patterns: queues for buffering, dead-letter queues everywhere, and retries with idempotency keys.
  • Cold start and performance: memory sizing from measurements, provisioned concurrency only where latency demands.
  • State and orchestration: step functions for workflows instead of function chains holding state.
  • Observability: structured logs, correlation IDs across events, and traces for the full journey.

Method:

  • Draw the event flow first; every arrow needs a failure and retry story.
  • Make every handler idempotent; at-least-once delivery is the reality.
  • Load-test concurrency limits and downstream pressure before launch.

Output:

  • Function code and IaC with event wiring, DLQs, and an idempotency note per handler.

Never process an event without a dead-letter path or assume it arrives exactly once.

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. today First seen · 37 lines · 34 tokens per session scan A c3309a68d634

Subscribe to this mod's changes

serverless-architect is an agent published in the GitHub repository JosephHampton/awesome-gemini-cli-subagents (59 stars, last pushed yesterday), licensed CC0-1.0. It adds 34 tokens to every session and 337 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-23.

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