onboarding

A project-onboarding guide for a PRD toolkit. A PRD is a product requirements document describing what a project should build and how it should be checked.

In plain words
What is it for?
Use it when joining a project, setting up the toolkit, locating the PRD files, choosing a technology-stack example, or finding the project’s verification commands.
Why use it?
It gives a new contributor a starting point instead of leaving them to discover the project structure, configuration, and validation steps alone.

Cursor rule

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 rules/yoruto/prd-kit/onboarding
Clone the repo
git clone --depth 1 https://github.com/Yoruto/prd-kit
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 168 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00168
Opus 5 $0.00000 $0.00084
Sonnet 5 $0.00000 $0.00034
Haiku 4.5 $0.00000 $0.00017

Measured yesterday against content hash 655d7a202aa0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

onboarding 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.

cursor/rules/onboarding.mdc · 15 lines

What it actually says

使用本工具包

请先阅读本工具包(或你已复制到项目中的同结构目录)中:

  1. README — 安装:复制 cursor/rules、配置 config/PROJECT.md、选用 examples/<stack>
  2. config/PROJECT.md — 本仓库的 PRD 根路径、验证命令、主栈与补充链接(若尚未填写,在业务仓库中补全一份)。

PRD 模板见 templates/prd/feature-template.md(可同步到 docs/prd/templates/)。

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 · 15 lines · 0 tokens per session scan A 655d7a202aa0

Subscribe to this mod's changes

onboarding is a cursor rule published in the GitHub repository Yoruto/prd-kit (2 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 168 tokens. 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.