scope-appropriate-architecture

scope-appropriate-architecture is a skill for Claude Code from yonatangross/orchestkit. It costs 41 tokens per session (1,796 once invoked), scanned A, original, MIT.

An architecture guide that places a project into one of six size and complexity levels, then recommends patterns suitable for that level. It covers examples such as prototypes, startups, growing systems, enterprise software, and open-source projects.

In plain words
What is it for?
Use it when choosing an architecture, database, authentication approach, or testing level, or when checking whether an existing design is too complex for the project.
Why use it?
It helps prevent over-engineering, such as adding microservices or complex layers to a small application that does not need them.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; names the AskUserQuestion tool; mentions Claude Code.

Part of the ork plugin — 107 skills, 36 commands, 36 agents, 32 hooks shipped together

Good fit Use it when choosing an architecture, database, authentication approach, or testing level, or when checking whether an existing design is too complex for the project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yonatangross/orchestkit/scope-appropriate-architecture
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.

Any agent
npx skills add yonatangross/orchestkit --skill scope-appropriate-architecture
Clone the repo
git clone --depth 1 https://github.com/yonatangross/orchestkit

Made for: Claude Code.

Or install ork, the plugin that ships this one along with the rest of its 107 skills, 36 commands, 36 agents, 32 hooks.

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 scope-appropriate-architecture

README.md
[![agentmods](https://agentmods.dev/badge/skills/yonatangross/orchestkit/scope-appropriate-architecture/github.svg)](https://agentmods.dev/skills/yonatangross/orchestkit/scope-appropriate-architecture)
Your own site
<a href="https://agentmods.dev/skills/yonatangross/orchestkit/scope-appropriate-architecture"><img src="https://agentmods.dev/badge/skills/yonatangross/orchestkit/scope-appropriate-architecture/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 scope-appropriate-architecture

Your own site · 80×15
<a href="https://agentmods.dev/skills/yonatangross/orchestkit/scope-appropriate-architecture"><img src="https://agentmods.dev/badge/skills/yonatangross/orchestkit/scope-appropriate-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,796 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 14
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
  • medium Prompt Injection · line 103
    Subtle instructions detected that may alter agent decision-making or introduce hidden biases.
    Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.
How audits are shown
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 $0.00041 $0.01796
Opus 5 $0.00020 $0.00898
Sonnet 5 $0.00008 $0.00359
Haiku 4.5 $0.00004 $0.00180

Measured yesterday against content hash 73712624c51f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

scope-appropriate-architecture 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 yesterday.

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/ork/skills/scope-appropriate-architecture/SKILL.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Scope-Appropriate Architecture

Right-size every architectural decision to the project's actual needs. Not every project needs hexagonal architecture, CQRS, or microservices.

Core principle: Detect the project tier first, then constrain all downstream pattern choices to that tier's complexity ceiling.


The 6 Project Tiers

Tier LOC Ratio Architecture DB Auth Tests
1. Interview/Take-home 1.0-1.3x Flat files, no layers SQLite / JSON None or basic 8-15 focused
2. Hackathon/Prototype 0.8-1.0x Single file if possible SQLite / in-memory None Zero
3. Startup/MVP 1.0-1.5x MVC monolith Managed Postgres Clerk/Supabase Auth Happy path + critical
4. Growth-stage 1.5-2.0x Modular monolith Postgres + Redis Auth service Unit + integration
5. Enterprise 2.0-3.0x Hexagonal/DDD Postgres + queues OAuth2/SAML Full pyramid
6. Open Source 1.2-1.8x Minimal API surface Configurable Optional Exhaustive public API

LOC Ratio = total lines / core business logic lines. Higher ratio = more infrastructure code relative to business value.


Auto-Detection Signals

Signal Tier Indicator
README contains "take-home", "assignment", "interview" Tier 1
Time limit mentioned (e.g., "4 hours", "weekend") Tier 1-2
< 10 files, no CI, no Docker Tier 1-2
.github/workflows/ present Tier 3+
package.json with 20+ dependencies Tier 3+
Kubernetes/Terraform files present Tier 4-5
CONTRIBUTING.md, CODE_OF_CONDUCT.md Tier 6
Monorepo with packages/ or apps/ Tier 4-5

When confidence is low: Ask the user with AskUserQuestion.


Pattern Appropriateness Matrix

Pattern Interview Hackathon MVP Growth Enterprise
Repository pattern OVERKILL OVERKILL BORDERLINE APPROPRIATE REQUIRED
Event-driven arch OVERKILL OVERKILL OVERKILL SELECTIVE APPROPRIATE
DI containers OVERKILL OVERKILL LIGHT ONLY APPROPRIATE REQUIRED
Separate DTO layers OVERKILL OVERKILL 1 EXTRA 2 LAYERS ALL LAYERS
Microservices NEVER NEVER NEVER EXTRACT ONLY APPROPRIATE
CQRS OVERKILL OVERKILL OVERKILL OVERKILL WHEN JUSTIFIED
Hexagonal architecture OVERKILL OVERKILL OVERKILL BORDERLINE APPROPRIATE
DDD (bounded contexts) OVERKILL OVERKILL OVERKILL SELECTIVE APPROPRIATE
Message queues OVERKILL OVERKILL BORDERLINE APPROPRIATE REQUIRED
API versioning SKIP SKIP URL prefix Header-based Full strategy
Error handling try/catch console.log Error boundary Error service RFC 9457
Logging console.log none Structured JSON Centralized OpenTelemetry

Read the full file on GitHub · 168 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. yesterday Changed 73712624c51f
  2. 4d ago First seen · 168 lines · 41 tokens per session scan A 6d16b34f8e5f

Subscribe to this mod's changes

scope-appropriate-architecture is a skill published in the GitHub repository yonatangross/orchestkit (231 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 1,796 once invoked, about $0.0002 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 2026-09-05.

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