architecture-decision-record

architecture-decision-record is a skill for Claude Code from Claude-Code-Community-Ireland/claude-code-resources. It costs 31 tokens per session (2,483 once invoked), scanned A, original, MIT.

A standard format for recording important technical decisions, including the situation, considered alternatives, chosen approach, and consequences. These records are often called architecture decision records, or ADRs.

In plain words
What is it for?
Use it when choosing technologies, changing architecture, deciding infrastructure, designing APIs, or selecting authentication methods.
Why use it?
It preserves why a system was designed a certain way, so future developers can understand and revisit major choices.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the vibeworks-library plugin — 34 skills, 21 commands, 33 agents, 3 hooks shipped together

Good fit Use it when choosing technologies, changing architecture, deciding infrastructure, designing APIs, or selecting authentication methods.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/claude-code-community-ireland/claude-code-resources/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 Claude-Code-Community-Ireland/claude-code-resources --skill architecture-decision-record
Clone the repo
git clone --depth 1 https://github.com/Claude-Code-Community-Ireland/claude-code-resources

Made for: Claude Code.

Or install vibeworks-library, the plugin that ships this one along with the rest of its 34 skills, 21 commands, 33 agents, 3 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 architecture-decision-record

README.md
[![agentmods](https://agentmods.dev/badge/skills/claude-code-community-ireland/claude-code-resources/architecture-decision-record/github.svg)](https://agentmods.dev/skills/claude-code-community-ireland/claude-code-resources/architecture-decision-record)
Your own site
<a href="https://agentmods.dev/skills/claude-code-community-ireland/claude-code-resources/architecture-decision-record"><img src="https://agentmods.dev/badge/skills/claude-code-community-ireland/claude-code-resources/architecture-decision-record/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 architecture-decision-record

Your own site · 80×15
<a href="https://agentmods.dev/skills/claude-code-community-ireland/claude-code-resources/architecture-decision-record"><img src="https://agentmods.dev/badge/skills/claude-code-community-ireland/claude-code-resources/architecture-decision-record.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,483 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00031 $0.02483
Opus 5.5 $0.00012 $0.00993
Sonnet 5.5 $0.00006 $0.00497
Haiku 4.5 $0.00003 $0.00248

Measured 1mo ago against content hash 7d3e5c508a79, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

architecture-decision-record scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Easy to test with curl, Postman, or any HTTP client
plugins/vibeworks-library/skills/architecture-decision-record/SKILL.md · 350 lines

How it starts

The opening of the file, as written. The whole thing — 350 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Decision Records

ADR Template

Every ADR follows this structure:

# ADR-NNN: Title of the Decision

## Status

[Proposed | Accepted | Deprecated | Superseded by ADR-NNN]

## Context

What is the issue that we are seeing that motivates this decision or change?
Describe the forces at play (technical, political, social, project-related).
Include any constraints, requirements, or assumptions.

## Decision

What is the change that we are proposing and/or doing?
State the decision in full sentences using active voice.
Be specific about what will be done.

## Consequences

What becomes easier or more difficult because of this decision?
List both positive and negative consequences.
Include any follow-up actions required.

When to Write an ADR

Write an ADR for any decision that meets one or more of these criteria:

Trigger Example
Adopting or replacing a technology Switching from REST to GraphQL
Changing an architectural pattern Moving from monolith to microservices
Infrastructure decisions Choosing a cloud provider or database
API design choices Choosing pagination strategy
Authentication/authorization strategy Adopting OAuth2 with PKCE
Data model decisions Choosing between SQL and NoSQL
Cross-cutting concerns Standardizing error handling or logging
Process or convention changes Adopting conventional commits
Build/deployment decisions Choosing CI/CD platform
Decisions that are hard to reverse Anything with significant migration cost

Read the full file on GitHub · 350 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 · 350 lines · 31 tokens per session scan A 7d3e5c508a79

Subscribe to this mod's changes

architecture-decision-record is a skill published in the GitHub repository Claude-Code-Community-Ireland/claude-code-resources (11 stars, last pushed 4mo ago), licensed MIT. It adds 31 tokens to every session and 2,483 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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