ac-tools-adr

ac-tools-adr is a skill for Claude Code from WaterplanAI/agentic-config. It costs 29 tokens per session (851 once invoked), scanned A, original, MIT.

A workflow for recording important software architecture choices as numbered Architecture Decision Records, or ADRs.

In plain words
What is it for?
Use it to create a new decision record, assign the next number, and update the project’s ADR index.
Why use it?
It keeps the reasoning behind major technical decisions available to people who work on the project later.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the agentic-config plugin — 49 skills, 1 plugin shipped together

Good fit Use it to create a new decision record, assign the next number, and update the project’s ADR index.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/waterplanai/agentic-config/ac-tools-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 WaterplanAI/agentic-config --skill ac-tools-adr
Clone the repo
git clone --depth 1 https://github.com/WaterplanAI/agentic-config

Made for: Claude Code.

Or install agentic-config, the plugin that ships this one along with the rest of its 49 skills, 1 plugin.

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 ac-tools-adr

README.md
[![agentmods](https://agentmods.dev/badge/skills/waterplanai/agentic-config/ac-tools-adr/github.svg)](https://agentmods.dev/skills/waterplanai/agentic-config/ac-tools-adr)
Your own site
<a href="https://agentmods.dev/skills/waterplanai/agentic-config/ac-tools-adr"><img src="https://agentmods.dev/badge/skills/waterplanai/agentic-config/ac-tools-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 ac-tools-adr

Your own site · 80×15
<a href="https://agentmods.dev/skills/waterplanai/agentic-config/ac-tools-adr"><img src="https://agentmods.dev/badge/skills/waterplanai/agentic-config/ac-tools-adr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 851 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 $0.00029 $0.00851
Opus 5 $0.00015 $0.00426
Sonnet 5 $0.00006 $0.00170
Haiku 4.5 $0.00003 $0.00085

Measured 9d ago against content hash 49a0051e6035, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ac-tools-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 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.

packages/pi-ac-tools/skills/ac-tools-adr/SKILL.md · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Decision Record (ADR) Command

Document architecture decisions following the ADR pattern. Auto-generates next ADR number and updates index.

Arguments

  • Optional: <decision_context> - If provided, document that specific decision
  • No argument: Infer decision from recent conversation context

Pre-Flight Checks

  1. Ensure ADR directory exists:

    • Check for adrs/ directory in current working directory
    • If missing: Create adrs/ directory
  2. Ensure index exists:

    • Check for adrs/000-index.md
    • If missing: Create default index template:
      # Architecture Decision Records (ADR) Index
      
      > Critical decisions that govern development. **Read before implementing.**
      
      ## Index
      
      | # | Decision | Status | Date |
      |---|----------|--------|------|
      
      ## Usage
      
      ADRs document significant architectural and policy decisions. Each entry follows format:
      `NNN-<title>.md` where NNN is zero-padded sequence number.
      
      ### Creating New ADR
      Use `/skill:ac-tools-adr` command or manually:
      1. Create file `adrs/NNN-title.md`
      2. Add entry to this index
      3. Commit: `adr(NNN): <title>`
      
  3. Read ADR index: adrs/000-index.md

    • Extract highest existing ADR number
    • Generate next number (NNN format: zero-padded 3 digits)
  4. Validate decision context:

    • If argument provided: Use that as decision context
    • If no argument: Infer from recent conversation (last 2-3 messages)
    • If unclear: STOP and ask user to clarify decision to document

Execution

  1. Generate ADR metadata:

    • Number: Next sequential (e.g., 001, 002, 003)
    • Title: Extract from decision context (kebab-case slug)
    • Date: Current date (YYYY-MM-DD format)
    • Status: "Accepted" (default)
  2. Create ADR file: adrs/NNN-<slug>.md

    # NNN - <Title>
    
    **Status**: Accepted
    **Date**: <YYYY-MM-DD>
    
    ## Context
    <Why this decision was needed - problem statement, constraints, requirements>
    
    ## Decision
    <What was decided - clear statement of the chosen approach>
    
    ## Consequences
    <Implications and trade-offs:>
    - **Positive**: <benefits>
    - **Negative**: <costs, limitations>
    - **Neutral**: <other impacts>
    
    ## References
    <Related docs, specs, links if any>
    

Read the full file on GitHub · 121 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 · 121 lines · 29 tokens per session scan A 49a0051e6035

Subscribe to this mod's changes

ac-tools-adr is a skill published in the GitHub repository WaterplanAI/agentic-config (30 stars, last pushed 1mo ago), licensed MIT. It adds 29 tokens to every session and 851 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.