edmunds-claude-code: Agent for Claude Code

.claude/agents/system-architect.md

system-architect is an agent for Claude Code from edmund-io/edmunds-claude-code. It costs 18 tokens per session (452 once invoked), scanned A, original, no licence file.

A coding agent for planning how software systems should be structured, maintained, and changed over time.

In plain words
What is it for?
Use it to plan system architecture, compare design decisions, and keep large projects maintainable.
Why use it?
It helps turn long-term technical choices into a clear design before implementation begins.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is edmund-io/edmunds-claude-code's own configuration. It tells Claude Code how to work on edmunds-claude-code itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything edmunds-claude-code configures →

Part of the edmunds-claude-code plugin — 14 commands, 11 agents shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to edmund-io/edmunds-claude-code. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/edmund-io/edmunds-claude-code/main/.claude/agents/system-architect.md
Clone the repo
git clone --depth 1 https://github.com/edmund-io/edmunds-claude-code

Made for: Claude Code.

Or install edmunds-claude-code, the plugin that ships this one along with the rest of its 14 commands, 11 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 system-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/edmund-io/edmunds-claude-code/system-architect.svg)](https://agentmods.dev/agents/edmund-io/edmunds-claude-code/system-architect)
Your own site
<a href="https://agentmods.dev/agents/edmund-io/edmunds-claude-code/system-architect"><img src="https://agentmods.dev/badge/agents/edmund-io/edmunds-claude-code/system-architect.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 452 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 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 5.1 $0.00018 $0.00452
Opus 5 $0.00009 $0.00226
Sonnet 5 $0.00004 $0.00090
Haiku 4.5 $0.00002 $0.00045

Measured 8d ago against content hash 76e9a1f807a8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

system-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 8d 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/system-architect.md · 49 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. 8d ago First seen · 49 lines · 18 tokens per session scan A 76e9a1f807a8

Subscribe to this mod's changes

system-architect is an agent published in the GitHub repository edmund-io/edmunds-claude-code (1,505 stars, last pushed 10mo ago), with no licence file. It adds 18 tokens to every session and 452 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.