adr

adr is a skill for Claude Code, Codex from byerlikaya/claude-starter-kit. It costs 27 tokens per session (741 once invoked), scanned A, original, MIT.

A short Architecture Decision Record, or ADR, that documents the context, choice, and consequences of an expensive-to-reverse technical decision. It can also record the decision on a shared team board.

In plain words
What is it for?
Use it for choices such as databases, authentication strategies, or long-lived design patterns, especially when the decision is contested or difficult to undo.
Why use it?
It preserves why an important choice was made so future teammates do not have to rediscover the reasoning or repeat the debate.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code.

Good fit Use it for choices such as databases, authentication strategies, or long-lived design patterns, especially when the decision is contested or difficult to undo.

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

Made for: Claude Code, Codex.

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/byerlikaya/claude-starter-kit/adr/github.svg)](https://agentmods.dev/skills/byerlikaya/claude-starter-kit/adr)
Your own site
<a href="https://agentmods.dev/skills/byerlikaya/claude-starter-kit/adr"><img src="https://agentmods.dev/badge/skills/byerlikaya/claude-starter-kit/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/byerlikaya/claude-starter-kit/adr"><img src="https://agentmods.dev/badge/skills/byerlikaya/claude-starter-kit/adr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 741 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 10
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
How audits are shown
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 $0.00027 $0.00741
Opus 5 $0.00014 $0.00370
Sonnet 5 $0.00005 $0.00148
Haiku 4.5 $0.00003 $0.00074

Measured 10d ago against content hash b9ab6d8f500a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 10d 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-starter/skills/adr/SKILL.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Decision Record (ADR)

Trigger phrases: "adr", "architecture decision", "decision record", "why this approach", "why we chose", "why we went with", "nobody remembers why", "why we picked"

When

On an architecture/technology choice that is expensive to reverse, long-lived, or contested (database selection, auth strategy, critical pattern). Small/reversible decisions do not require an ADR.

On a team, the record ALSO goes on the board

docs/ is gitignored in an install, so an ADR written there reaches the machine that wrote it and nobody else — which is the opposite of what a decision record is for. When a teamboard exists, record it with board.sh decide "<title>" "<context + decision + consequences>" as well: the board is shared, so it arrives at every teammate's next session opening, and it travels even when the board lives in its own repository. The local file stays the long form; the board entry is the part that has to reach people, so it must be readable on its own — a title nobody can act on ("auth decided") is not a record.

Format (docs/adr/NNNN-short-title.md, ~1 page)

# NNNN. <Decision title>
Status: proposed | accepted | rejected | superseded (by NNNN)
## Context
Which problem/constraint requires this decision?
## Decision
What was decided (clear, one sentence + rationale)?
## Consequences
Pros / cons / accepted trade-offs.
## Alternatives considered
Why were they not chosen?

Principles

  • Invariant: a new decision marks the old ADR as superseded; an ADR is never deleted (decision history is preserved).
  • Numbered and dated; keep it short.

Deliberately bypassing a rule is a decision too

A gate the user knowingly overrode — a deferred DoD item, an accepted known gap, a trimmed scope — belongs here whenever its effect outlives the task. It is not a lesser kind of decision: choosing not to apply a rule shapes the codebase exactly as choosing a database does, and it is the one class of decision that leaves no trace in the code at all. Six months on, a rule that was weighed and overridden is indistinguishable from one that was never noticed, and the second is the one you would want to fix.

Read the full file on GitHub · 65 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. 10d ago First seen · 65 lines · 27 tokens per session scan A b9ab6d8f500a

Subscribe to this mod's changes

adr is a skill published in the GitHub repository byerlikaya/claude-starter-kit (22 stars, last pushed today), licensed MIT. It adds 27 tokens to every session and 741 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.

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