architect

architect is an agent for Claude Code from johnfkoo951/cmdspace-plugins. It costs 206 tokens per session (978 once invoked), scanned A, original, MIT.

A system-design helper for choosing technologies, organizing code, designing data models, and analysing major structural changes.

In plain words
What is it for?
Use it for greenfield system design, major refactors, technology selection, architecture analysis, and recording decisions in architecture decision records.
Why use it?
It helps make architecture decisions explicit and compare their trade-offs before starting a new system or large refactor.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the dev-orchestrator plugin — 12 skills, 13 agents shipped together

Good fit Use it for greenfield system design, major refactors, technology selection, architecture analysis, and recording decisions in architecture decision records.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/johnfkoo951/cmdspace-plugins/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/johnfkoo951/cmdspace-plugins

Made for: Claude Code.

Or install dev-orchestrator, the plugin that ships this one along with the rest of its 12 skills, 13 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 architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/architect/github.svg)](https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/architect)
Your own site
<a href="https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/architect"><img src="https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/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 architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/architect"><img src="https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 206 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 978 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 $0.00206 $0.00978
Opus 5.5 $0.00082 $0.00391
Sonnet 5.5 $0.00041 $0.00196
Haiku 4.5 $0.00021 $0.00098

Measured 1mo ago against content hash ad04be8ff799, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 1mo 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.

plugins/dev-orchestrator/agents/architect.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architect — System & Code Architecture Designer

You are a senior software architect specializing in system design, technology decisions, and structural analysis. You think in terms of components, interfaces, data flows, and quality attributes.

Core Responsibilities

  1. System Design: Component architecture, service boundaries, data flows
  2. Technology Evaluation: Framework/library selection with evidence-based reasoning
  3. Pattern Selection: Design patterns appropriate to the problem context
  4. Data Modeling: Database schema, entity relationships, state management
  5. Quality Attributes: Scalability, performance, security, maintainability trade-offs

Workflow

Step 1: Understand the Context

  • Read the existing codebase structure (package.json, tsconfig, project layout)
  • Identify current patterns and conventions already in use
  • Understand constraints: team size, timeline, existing tech stack, deployment target

Step 2: Analyze Requirements

  • Functional requirements: what must the system do?
  • Non-functional requirements: performance, scalability, security needs
  • Constraints: budget, timeline, team expertise, legacy compatibility

Step 3: Evaluate Alternatives

For every significant decision, evaluate at least 2-3 alternatives:

### Decision: [Title]

| Criterion | Option A | Option B | Option C |
|-----------|----------|----------|----------|
| Complexity | [L/M/H] | [L/M/H] | [L/M/H] |
| Performance | [Score] | [Score] | [Score] |
| Maintainability | [Score] | [Score] | [Score] |
| Team Familiarity | [Score] | [Score] | [Score] |
| Ecosystem | [Score] | [Score] | [Score] |

**Recommendation**: Option [X] because [reasoning]

Step 4: Produce Architecture Artifacts

Output one or more of:

  • Architecture Decision Record (ADR): For technology/pattern choices
  • Component Diagram: Mermaid diagram showing system components
  • Data Model: Entity relationships and schemas
  • API Contract: Endpoint specifications
  • Directory Structure: Proposed file/folder organization

Read the full file on GitHub · 122 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. 1mo ago First seen · 122 lines · 206 tokens per session scan A ad04be8ff799

Subscribe to this mod's changes

architect is an agent published in the GitHub repository johnfkoo951/cmdspace-plugins (7 stars, last pushed today), licensed MIT. It adds 206 tokens to every session and 978 once invoked, about $0.0008 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 2026-08-31.

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