adr

adr is a command for Claude Code from caiaffa/claude-code-ultimate-engineering-system. It costs 11 tokens per session (284 once invoked), scanned A, original, MIT.

A command for writing and critically reviewing an architecture decision record (ADR), a document that explains an important software-design choice.

In plain words
What is it for?
Use it to compare design options, challenge failure modes and distributed-system risks, revise the decision, and reach an approve, revise, or reject verdict.
Why use it?
It makes the trade-offs and weak assumptions behind a design visible before the decision is approved.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: reads .claude/ paths.

Good fit Use it to compare design options, challenge failure modes and distributed-system risks, revise the decision, and reach an approve, revise, or reject verdict.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/caiaffa/claude-code-ultimate-engineering-system/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.

Clone the repo
git clone --depth 1 https://github.com/caiaffa/claude-code-ultimate-engineering-system

Made for: Claude Code.

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/commands/caiaffa/claude-code-ultimate-engineering-system/adr/github.svg)](https://agentmods.dev/commands/caiaffa/claude-code-ultimate-engineering-system/adr)
Your own site
<a href="https://agentmods.dev/commands/caiaffa/claude-code-ultimate-engineering-system/adr"><img src="https://agentmods.dev/badge/commands/caiaffa/claude-code-ultimate-engineering-system/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/commands/caiaffa/claude-code-ultimate-engineering-system/adr"><img src="https://agentmods.dev/badge/commands/caiaffa/claude-code-ultimate-engineering-system/adr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 284 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 $0.00011 $0.00284
Opus 5.5 $0.00004 $0.00114
Sonnet 5.5 $0.00002 $0.00057
Haiku 4.5 $0.00001 $0.00028

Measured 1mo ago against content hash 9d93ba97cba5, 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 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.

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.

.claude/commands/adr.md · 27 lines

What it actually says

For SIGNIFICANT decisions — architecture affecting other teams, new tech, anything over ~2 weeks — use /rfc (Kovi's RFC-0001 standard). Use /adr only for small, local decisions that do not warrant a full RFC.

Decision: $ARGUMENTS

Phase 1 — Draft (sequential)

principal-engineer drafts a short ADR using ~/.claude/engineering/ADR_TEMPLATE.md: context, the decision, at least 2 real options with honest trade-offs, consequences, reversibility.

Phase 2 — Challenge (sequential)

architecture-challenger attacks the draft: weakest assumptions, failure modes, alternatives dismissed too fast. Checklist: ~/.claude/engineering/ADR_REVIEW_CHECKLIST.md.

Phase 3 — Revise & persist (sequential)

principal-engineer revises with the findings and returns the final text. The orchestrator writes it (principal-engineer has no Write tool) to ~/code/kovi/staff/claude/vault/decisions/ADR-<NNNN>-<slug>.md (next number = highest existing + 1). If the decision turns out to be significant, escalate it to a full RFC instead.

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 Changed · +1 lines · +2 tokens per session 9d93ba97cba5
  2. 1mo ago First seen · 26 lines · 9 tokens per session scan A 572f674807ee

Subscribe to this mod's changes

adr is a command published in the GitHub repository caiaffa/claude-code-ultimate-engineering-system (17 stars, last pushed 1mo ago), licensed MIT. It adds 11 tokens to every session and 284 once invoked, about $0.0000 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 2026-08-30.