adr

adr is a skill for Claude Code from anmolnagpal/devops-skills. It costs 99 tokens per session (1,059 once invoked), scanned A, original, MIT.

A format for recording important software architecture decisions, including the chosen option, alternatives, and reasons. The records are stored as documents next to the code.

In plain words
What is it for?
Use it to create, list, read, or replace records about choices such as frameworks, databases, APIs, deployment methods, or design patterns.
Why use it?
It preserves why a significant technical choice was made instead of leaving that context in chats or in one person's memory.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the clouddrove plugin — 19 skills, 2 hooks shipped together

Good fit Use it to create, list, read, or replace records about choices such as frameworks, databases, APIs, deployment methods, or design patterns.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/anmolnagpal/devops-skills/adr
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 anmolnagpal/devops-skills --skill adr
Clone the repo
git clone --depth 1 https://github.com/anmolnagpal/devops-skills

Made for: Claude Code.

Or install clouddrove, the plugin that ships this one along with the rest of its 19 skills, 2 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 adr

README.md
[![agentmods](https://agentmods.dev/badge/skills/anmolnagpal/devops-skills/adr/github.svg)](https://agentmods.dev/skills/anmolnagpal/devops-skills/adr)
Your own site
<a href="https://agentmods.dev/skills/anmolnagpal/devops-skills/adr"><img src="https://agentmods.dev/badge/skills/anmolnagpal/devops-skills/adr/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 adr

Your own site · 80×15
<a href="https://agentmods.dev/skills/anmolnagpal/devops-skills/adr"><img src="https://agentmods.dev/badge/skills/anmolnagpal/devops-skills/adr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,059 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 $0.00099 $0.01059
Opus 5.5 $0.00040 $0.00424
Sonnet 5.5 $0.00020 $0.00212
Haiku 4.5 $0.00010 $0.00106

Measured 2mo ago against content hash 87142ac31d14, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

adr 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.

skills/adr/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ADR Skill

Capture architectural decisions as they happen, so the why lives next to the code instead of in a Slack thread or someone's memory. Produces lightweight ADR documents under docs/adr/.

Keywords

adr, architecture decision record, decision, rationale, trade-off, alternatives, we decided, why did we choose, design decision, supersede, decision log, nygard

When to record a decision

  • The user says "record this", "ADR this", "let's document this decision".
  • A choice is made between significant alternatives: framework, library, database, language, pattern, API shape, infra/deploy approach, build vs buy.
  • The user says "we decided to…" or "the reason we're doing X instead of Y is…".
  • The user asks "why did we choose X?" → read and summarize the existing ADR.

For trivial or easily-reversible choices, don't create an ADR — note it inline and move on.

Output Artifacts

Request Output
/adr new "<title>" A new docs/adr/NNNN-<slug>.md + an updated index
/adr list The decision log (ID, title, status, date)
/adr supersede <NNNN> A new ADR marked as superseding an old one; old one flipped to superseded

Format

Lightweight Nygard ADR, adapted for AI-assisted work:

# ADR-NNNN: <Decision Title>

**Date**: YYYY-MM-DD
**Status**: proposed | accepted | deprecated | superseded by ADR-NNNN
**Deciders**: <who was involved>

## Context

What is the issue motivating this decision? The situation, constraints, and forces at
play. 2–5 sentences.

## Decision

What we are doing. 1–3 sentences, stated clearly.

## Alternatives Considered

### <Alternative>
- **Pros**: …
- **Cons**: …
- **Why not**: the specific reason it was rejected.

(Repeat per alternative.)

## Consequences

### Positive
- …

### Negative / trade-offs
- …

### Risks
- <risk and its mitigation>

NEW — Record a decision

  1. Initialize once. If docs/adr/ does not exist, ask the user to confirm before creating it. On confirmation, create the directory, a README.md seeded with the index table header (below), and a template.md copy of the format above. Never create files without explicit consent.
  2. Number it. Next zero-padded number after the highest existing docs/adr/NNNN-*.md (start at 0001). Slug = kebab-case of the title.
  3. Fill it from the conversation — extract the decision, the context that prompted it, the alternatives actually weighed, and the consequences. Do not invent alternatives that were never discussed; if context is thin, ask one or two targeted questions.
  4. Default status accepted when the user states a decision; proposed when still weighing. Date = today.
  5. Update the index in docs/adr/README.md.

Read the full file on GitHub · 127 lines

Files

What ships with it

1 file 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. 2mo ago First seen · 127 lines · 99 tokens per session scan A 87142ac31d14

Subscribe to this mod's changes

adr is a skill published in the GitHub repository anmolnagpal/devops-skills (8 stars, last pushed 3d ago), licensed MIT. It adds 99 tokens to every session and 1,059 once invoked, about $0.0004 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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