architect-fullstack

An agent that plans software architecture and reviews code against the plan. It covers the parts of an application such as APIs, databases, user-interface components, and how they fit together.

In plain words
What is it for?
It is for designing backend and frontend architecture, defining API contracts and database schemas, planning component trees, and reviewing code.
Why use it?
It helps turn a feature idea into a coordinated design before implementation and identify code that does not match that design.

Agent for Claude Code

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/endorphin-ai/claude-code-teams/architect-fullstack
Clone the repo
git clone --depth 1 https://github.com/endorphin-ai/claude-code-teams

Made for: Claude Code.

Per session 101 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,881 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00101 $0.01881
Opus 5 $0.00051 $0.00941
Sonnet 5 $0.00020 $0.00376
Haiku 4.5 $0.00010 $0.00188

Measured 2d ago against content hash 6d93ea706513, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

architect-fullstack 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.

go-react-team/.claude/agents/architect-fullstack.md · 174 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 174 lines · 101 tokens per session scan A 6d93ea706513

Subscribe to this mod's changes

architect-fullstack is an agent published in the GitHub repository endorphin-ai/claude-code-teams (3 stars, last pushed 6mo ago), with no licence file. It adds 101 tokens to every session and 1,881 once invoked, about $0.0005 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.