documenting-decisions

documenting-decisions is a skill for Claude Code from bostonaholic/rpikit. It costs 47 tokens per session (1,631 once invoked), scanned A, original, MIT.

A documentation guide that turns design decisions into Architecture Decision Records, short files explaining what was chosen, why, and which alternatives were considered.

In plain words
What is it for?
Use it after brainstorming or planning to create numbered decision records in docs/decisions/.
Why use it?
It preserves the reasoning behind important technical choices so future developers can understand them without reconstructing the original discussion.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: names the AskUserQuestion tool.

Part of the rpikit plugin — 16 skills, 7 agents shipped together

Good fit Use it after brainstorming or planning to create numbered decision records in docs/decisions/.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bostonaholic/rpikit/documenting-decisions
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 bostonaholic/rpikit --skill documenting-decisions
Clone the repo
git clone --depth 1 https://github.com/bostonaholic/rpikit

Made for: Claude Code.

Or install rpikit, the plugin that ships this one along with the rest of its 16 skills, 7 agents.

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 documenting-decisions

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/bostonaholic/rpikit/documenting-decisions"><img src="https://agentmods.dev/badge/skills/bostonaholic/rpikit/documenting-decisions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,631 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 $0.00047 $0.01631
Opus 5 $0.00023 $0.00816
Sonnet 5 $0.00009 $0.00326
Haiku 4.5 $0.00005 $0.00163

Measured 9d ago against content hash 1ba38be9116d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

documenting-decisions 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 9d 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/documenting-decisions/SKILL.md · 253 lines

How it starts

The opening of the file, as written. The whole thing — 253 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Documenting Decisions

Capture architectural decisions as Architecture Decision Records (ADRs).

Purpose

Design decisions made during brainstorming and planning need a standardized, discoverable format for long-term reference. ADRs record what was decided, why, and what alternatives were considered. This skill reads design documents and produces structured ADR files that provide historical context for future engineers.

When to Use

Use this skill when:

  • A design decision has been made during brainstorming or planning
  • An architectural choice needs to be recorded for posterity
  • You want to document why an approach was chosen over alternatives
  • A previous decision is being superseded or deprecated

Skip this skill when:

  • The decision is trivial (formatting, naming conventions)
  • No alternatives were considered
  • The change is temporary or experimental

Process

1. Identify the Design Document

Parse $ARGUMENTS for a path to a design document.

Path validation: Before reading, verify the path is safe:

  • Reject absolute paths (starting with / or ~)
  • Reject paths containing .. segments
  • Only accept relative paths within the project directory
  • If invalid, inform the user and ask for a relative path under docs/

If a valid path is provided:

  • Read the design document
  • Extract: problem statement, chosen approach, alternatives, trade-offs

If no path is provided:

  • Search for recent design documents:
Glob pattern: docs/plans/*-design.md
  • Present found documents and ask user to select one using AskUserQuestion
  • If no design documents exist, ask user to describe the decision directly

2. Extract Decision Content

From the design document (or user input), identify:

  • Title: A short, imperative description of the decision
  • Context: The problem being solved and relevant background
  • Decision: What was chosen and why
  • Consequences: Positive and negative outcomes
  • Alternatives: Other options considered and why they were rejected

Read the full file on GitHub · 253 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. 9d ago First seen · 253 lines · 47 tokens per session scan A 1ba38be9116d

Subscribe to this mod's changes

documenting-decisions is a skill published in the GitHub repository bostonaholic/rpikit (20 stars, last pushed 2d ago), licensed MIT. It adds 47 tokens to every session and 1,631 once invoked, about $0.0002 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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