maid-methodology

A guide to MAID, or Manifest-driven AI Development, a method that uses task manifests and behaviour-focused tests to guide implementation and validation. It also covers test-driven development, where tests are written before or alongside the code they check.

In plain words
What is it for?
Use it to create task manifests, write behaviour tests, implement changes with TDD, validate results, and use MAID subagents.
Why use it?
It helps keep AI-assisted development tied to explicit requirements and observable behaviour instead of informal instructions alone.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/aidrivencoder/claude-plugins/maid-methodology
Any agent
npx skills add aidrivencoder/claude-plugins --skill maid-methodology
Clone the repo
git clone --depth 1 https://github.com/aidrivencoder/claude-plugins

Made for: Claude Code, Codex.

Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,910 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00064 $0.01910
Opus 5 $0.00032 $0.00955
Sonnet 5 $0.00013 $0.00382
Haiku 4.5 $0.00006 $0.00191

Measured yesterday against content hash 09b484c99154, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

maid-methodology 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 yesterday.

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.

plugins/maid-runner/skills/maid-methodology/SKILL.md · 242 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

4 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. yesterday First seen · 242 lines · 64 tokens per session scan A 09b484c99154

Subscribe to this mod's changes

maid-methodology is a skill published in the GitHub repository aidrivencoder/claude-plugins (8 stars, last pushed 10d ago), with no licence file. It adds 64 tokens to every session and 1,910 once invoked, about $0.0003 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 2026-08-31.

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