adr

adr is a skill for Claude Code from rtazima/claude-proj-blueprint. It costs 22 tokens per session (258 once invoked), scanned A, original, MIT.

A template and workflow for writing Architecture Decision Records (ADRs), documents that record important technical choices and their reasoning.

In plain words
What is it for?
Use it to document architectural decisions, technical trade-offs, affected specifications, and later decisions that replace or supersede earlier ones.
Why use it?
It preserves why a design was chosen, including alternatives, consequences, and links to the requirements that motivated it.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to document architectural decisions, technical trade-offs, affected specifications, and later decisions that replace or supersede earlier ones.

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Install with agentmods
npx agentmods add skills/rtazima/claude-proj-blueprint/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 rtazima/claude-proj-blueprint --skill adr
Clone the repo
git clone --depth 1 https://github.com/rtazima/claude-proj-blueprint

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/skills/rtazima/claude-proj-blueprint/adr.svg)](https://agentmods.dev/skills/rtazima/claude-proj-blueprint/adr)
Your own site
<a href="https://agentmods.dev/skills/rtazima/claude-proj-blueprint/adr"><img src="https://agentmods.dev/badge/skills/rtazima/claude-proj-blueprint/adr.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 258 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 $0.00022 $0.00258
Opus 5 $0.00011 $0.00129
Sonnet 5 $0.00004 $0.00052
Haiku 4.5 $0.00002 $0.00026

Measured 8d ago against content hash 57037cda120f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, 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 8d 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/skills/adr/SKILL.md · 49 lines

What it actually says

Architecture Decision Records

Template

Create in docs/architecture/adr-NNN-title.md:

# ADR-NNN: Decision Title

## Status
Proposed | Accepted | Deprecated | Superseded by ADR-XXX

## Context
What motivated this decision? What problem are we solving?

## Decision
What we decided to do and why.

## Alternatives considered
1. **Alternative A** — pros and cons
2. **Alternative B** — pros and cons

## Consequences
- Positive: ...
- Negative: ...
- Risks: ...

## Impact on specs
[SPEC] List affected specs:
- Compliance: [impact]
- Security: [impact]
- Scalability: [impact]
- [others]

## References
- PRD: `docs/product/xxx.md`
- Design: [link]

Rules

  • Number sequentially (check last number with ls docs/architecture/)
  • Accepted ADRs are immutable — create a new ADR to supersede
  • Always link to the PRD that motivated the decision
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. 8d ago First seen · 49 lines · 22 tokens per session scan A 57037cda120f

Subscribe to this mod's changes

adr is a skill published in the GitHub repository rtazima/claude-proj-blueprint (20 stars, last pushed 3mo ago), licensed MIT. It adds 22 tokens to every session and 258 once invoked, about $0.0001 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.