architecture-decision-record

architecture-decision-record is a skill for Claude Code, Codex from ArieGoldkin/ai-agent-hub. It costs 56 tokens per session (2,485 once invoked), scanned A, original, MIT.

A method for recording important software architecture decisions in short documents called Architecture Decision Records, or ADRs. Each record explains the situation, the chosen approach, its effects, and the alternatives considered.

In plain words
What is it for?
Use it when choosing databases, frameworks, cloud providers, architecture patterns, or team conventions, and when documenting the trade-offs and consequences of those choices.
Why use it?
It preserves why a decision was made instead of leaving only the final code or technology choice. This helps new team members understand the system and prevents settled debates from being reopened without new information.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when choosing databases, frameworks, cloud providers, architecture patterns, or team conventions, and when documenting the trade-offs and consequences of those choices.

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Install with agentmods
npx agentmods add skills/ariegoldkin/ai-agent-hub/architecture-decision-record
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 ArieGoldkin/ai-agent-hub --skill architecture-decision-record
Clone the repo
git clone --depth 1 https://github.com/ArieGoldkin/ai-agent-hub

Made for: Claude Code, Codex.

Wrote this? Show the measurements

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README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/ariegoldkin/ai-agent-hub/architecture-decision-record"><img src="https://agentmods.dev/badge/skills/ariegoldkin/ai-agent-hub/architecture-decision-record.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,485 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 $0.00056 $0.02485
Opus 5 $0.00028 $0.01242
Sonnet 5 $0.00011 $0.00497
Haiku 4.5 $0.00006 $0.00248

Measured 12d ago against content hash 93ec664c97a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

architecture-decision-record 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 12d 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.

skills/architecture-decision-record/SKILL.md · 326 lines

How it starts

The opening of the file, as written. The whole thing — 326 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Decision Record

Overview

Architecture Decision Records (ADRs) are lightweight documents that capture important architectural decisions along with their context and consequences. This skill provides templates, examples, and best practices for creating and maintaining ADRs in your projects.

When to use this skill:

  • Making significant technology choices (databases, frameworks, cloud providers)
  • Designing system architecture or major components
  • Establishing patterns or conventions for the team
  • Evaluating trade-offs between multiple approaches
  • Documenting decisions that will impact future development

Why ADRs Matter

ADRs serve as architectural memory for your team:

  • Context Preservation: Capture why decisions were made, not just what was decided
  • Onboarding: Help new team members understand architectural rationale
  • Prevent Revisiting: Avoid endless debates about settled decisions
  • Track Evolution: See how architecture evolved over time
  • Accountability: Clear ownership and decision timeline

ADR Format (Nygard Template)

Each ADR should follow this structure:

1. Title

Format: ADR-####: [Decision Title] Example: ADR-0001: Adopt Microservices Architecture

2. Status

Current state of the decision:

  • Proposed: Under consideration
  • Accepted: Decision approved and being implemented
  • Superseded: Replaced by a later decision (reference ADR number)
  • Deprecated: No longer recommended but not yet replaced
  • Rejected: Considered but not adopted (document why)

3. Context

What to include:

  • Problem statement or opportunity
  • Business/technical constraints
  • Stakeholder requirements
  • Current state of the system
  • Forces at play (conflicting concerns)

Example:

## Context

Our monolithic application is experiencing scalability issues:
- Database connection pool exhausted during peak traffic
- Deployment of any feature requires full application restart
- Teams blocked waiting for shared resources
- 45-minute build times impacting developer productivity

Business requirements:
- Support 10x traffic growth over next 12 months
- Enable independent team deployments
- Improve time-to-market for new features

Technical constraints:
- Team familiar with Node.js and Python
- AWS infrastructure already in place
- Budget for 2 senior devops engineers

Read the full file on GitHub · 326 lines

Files

What ships with it

6 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. 12d ago First seen · 326 lines · 56 tokens per session scan A 93ec664c97a5

Subscribe to this mod's changes

architecture-decision-record is a skill published in the GitHub repository ArieGoldkin/ai-agent-hub (11 stars, last pushed 9mo ago), licensed MIT. It adds 56 tokens to every session and 2,485 once invoked, about $0.0003 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.