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backend-architect

backend-architect is a skill for Claude Code, Codex from danielw-sudo/skill-quiver. It costs 55 tokens per session (374 once invoked), scanned A, original, no licence file.

A guide for designing backend systems, including databases, APIs, and cloud infrastructure.

In plain words
What is it for?
Use it to design a backend, review a database schema, structure an API, or plan for growth.
Why use it?
It makes design choices explicit by recording the tradeoffs behind each architectural decision.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: model in frontmatter.

not rated 2repo 4mo ago A scan 55 tokens no licence

Good fit Use it to design a backend, review a database schema, structure an API, or plan for growth.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/danielw-sudo/skill-quiver/backend-architect
View source ↗ danielw-sudo/skill-quiver
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 danielw-sudo/skill-quiver --skill backend-architect
Clone the repo
git clone --depth 1 https://github.com/danielw-sudo/skill-quiver

Made for: Claude Code, Codex.

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 backend-architect

README.md
[![agentmods](https://agentmods.dev/badge/skills/danielw-sudo/skill-quiver/backend-architect/github.svg)](https://agentmods.dev/skills/danielw-sudo/skill-quiver/backend-architect)
Your own site
<a href="https://agentmods.dev/skills/danielw-sudo/skill-quiver/backend-architect"><img src="https://agentmods.dev/badge/skills/danielw-sudo/skill-quiver/backend-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 backend-architect

Your own site · 80×15
<a href="https://agentmods.dev/skills/danielw-sudo/skill-quiver/backend-architect"><img src="https://agentmods.dev/badge/skills/danielw-sudo/skill-quiver/backend-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 374 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 $0.00055 $0.00374
Opus 5.5 $0.00022 $0.00150
Sonnet 5.5 $0.00011 $0.00075
Haiku 4.5 $0.00006 $0.00037

Measured 2mo ago against content hash 29b34c65d8f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

backend-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 2mo 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.

code/backend-architect/SKILL.md · 40 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. 2mo ago First seen · 40 lines · 55 tokens per session scan A 29b34c65d8f3

Subscribe to this mod's changes

backend-architect is a skill published in the GitHub repository danielw-sudo/skill-quiver (2 stars, last pushed 4mo ago), with no licence file. It adds 55 tokens to every session and 374 once invoked, about $0.0002 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.

Backend and APIsDatabasescode
Related

backend-architect compared with skills from other repositories

backend-architect next to 6 skills from other repositories
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nornicdb-grpcorneryd/NornicDBSkill924todayMITA98Claude Code, Codex
nw-ddd-eventsourcingnWave-ai/nWaveSkill633todayMITA38Claude Code
firebaseericrisco/rsc-harnessSkill5294d agoMITA77Claude Code, Codex