adr

adr is a skill for Claude Code from sd0xdev/sd0x-harness. It costs 144 tokens per session (5,023 once invoked), scanned A, original, MIT.

A template and process for writing an Architecture Decision Record, a short document explaining an important technical choice and its consequences.

In plain words
What is it for?
Use it to create a numbered ADR with context, decision, status, consequences, and alternatives, including links when it replaces an older decision.
Why use it?
It preserves why a decision was made, what alternatives were considered, and whether the decision is still current.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool; mentions Codex.

Part of the sd0x-dev-flow plugin — 101 skills, 16 agents, 5 hooks shipped together

Good fit Use it to create a numbered ADR with context, decision, status, consequences, and alternatives, including links when it replaces an older decision.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sd0xdev/sd0x-harness/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 sd0xdev/sd0x-harness --skill adr
Clone the repo
git clone --depth 1 https://github.com/sd0xdev/sd0x-harness

Made for: Claude Code.

Or install sd0x-dev-flow, the plugin that ships this one along with the rest of its 101 skills, 16 agents, 5 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/sd0xdev/sd0x-harness/adr/github.svg)](https://agentmods.dev/skills/sd0xdev/sd0x-harness/adr)
Your own site
<a href="https://agentmods.dev/skills/sd0xdev/sd0x-harness/adr"><img src="https://agentmods.dev/badge/skills/sd0xdev/sd0x-harness/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/sd0xdev/sd0x-harness/adr"><img src="https://agentmods.dev/badge/skills/sd0xdev/sd0x-harness/adr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 144 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,023 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 pass 7 Sept 2026
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 $0.00144 $0.05023
Opus 5.5 $0.00058 $0.02009
Sonnet 5.5 $0.00029 $0.01005
Haiku 4.5 $0.00014 $0.00502

Measured 1mo ago against content hash 4bd76188f775, 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/next-adr-number.js), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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 · 296 lines

How it starts

The opening of the file, as written. The whole thing — 296 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ADR — Architecture Decision Record

Trigger

  • Keywords: ADR, architecture decision record, decision record, record a decision, why did we choose, 架構決策, 決策紀錄

When NOT to Use

Scenario Alternative
Feature-wide technical design (components, data flow) /tech-spec
Task progress / acceptance-criteria tracking /create-request
Bulk backfill of decisions already made in the past Separate request — this skill writes one ADR per invocation, not a batch

Workflow

Phase 1: Resolve feature  → shared feature-context resolution
Phase 2: Compute number   → scan root + archived/, numeric max + 1, zero-pad to 3 digits
Phase 3: Gather content   → Context / Decision / Status / Consequences / Alternatives
Phase 4: Write ADR        → fill references/template.md, write to docs/features/<key>/
Phase 4b: Superseded link → (only if this ADR supersedes an existing one) edit both files
Phase 5: Report           → path written, number assigned, links updated

Phase 1: Resolve Feature

Reuse the shared cascade — do not re-derive it here: @skills/create-request/references/feature-context-resolution.md — the single copy since doc-review-phasing r2 merged the two that had drifted apart; /tech-spec now keeps its own command-free native-cascade reference in its own bundle instead of a second copy of this one — canonical implementation scripts/lib/feature-resolver.js, invoked as node scripts/resolve-feature.js [--feature <key>].

scan_error gate. scan_error !== false ⇒ the source sets are unknown, not empty — report it and take the ⚠️ Need Human exit rather than recording a decision against a corpus you could not read — an ADR is a time-stamped claim about what was true, and one written from an unreadable corpus is wrong forever. Gate on !== false, not === true: a {} payload from a shell fallback carries no such field at all, and a non-null key is not evidence the sets are complete — scan_error rides alongside a resolved key.

Read the full file on GitHub · 296 lines

Files

What ships with it

2 files 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. 1mo ago First seen · 296 lines · 144 tokens per session scan A 4bd76188f775

Subscribe to this mod's changes

adr is a skill published in the GitHub repository sd0xdev/sd0x-harness (194 stars, last pushed 12d ago), licensed MIT. It adds 144 tokens to every session and 5,023 once invoked, about $0.0006 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.

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