doc-first-dev CLAUDE.md

Repository instructions for a collection of installable agent skills, including a documentation-driven development skill and a decision-log skill.

In plain words
What is it for?
Use it when editing skills, templates, documentation, naming, repository structure, or evaluation scenarios in the doc-first-dev project.
Why use it?
It keeps skill files consistent, focused, and tested against example situations instead of letting project rules drift.

Instructions file

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 instructions/zzusp/doc-first-dev/claude-md
Clone the repo
git clone --depth 1 https://github.com/zzusp/doc-first-dev
Per session 316 This file is loaded in full into every session.
When invoked 316 The same file — it is already loaded in full.
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 $0.00316 $0.00316
Opus 5 $0.00158 $0.00158
Sonnet 5 $0.00063 $0.00063
Haiku 4.5 $0.00032 $0.00032

Measured 2d ago against content hash 50a7d4b8bd6b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

doc-first-dev CLAUDE.md 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 2d 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.

CLAUDE.md · 32 lines

What it actually says

CLAUDE.md — doc-first-dev

本仓库是一套可安装的 Agent Skills,不是业务项目。在此仓库中工作时请遵守以下规则。

仓库结构

skills/
  spec-first/          # 文档驱动全周期 skill
    SKILL.md           # 入口
    *.md               # 各阶段文件(init, step0, phase-a/b/c/d, error-handling)
    assets/            # 供目标项目使用的模板文件
    evals/             # 评测场景
  whylog-record/       # 决策日志 skill
    SKILL.md
    evals/
reference/
  best-practices.md    # Skill 编写参考指南,修改 skill 前必读

编写规则

  • 修改任何 skill 文件前,先阅读 reference/best-practices.md
  • skill 文件保持精简:不解释 Claude 已知的常识,只写 Claude 没有的上下文
  • 文件命名:全小写 + 连字符(如 phase-a.mdclaude-md-snippet.md
  • 模板文件(assets/)中的占位符统一用 <尖括号> 格式
  • 不在 skill 文件里硬编码用户项目的具体路径

评测

修改 skill 逻辑后,对照 evals/ 中的场景手动验证主要路径是否仍符合预期。

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. 2d ago First seen · 32 lines · 316 tokens per session scan A 50a7d4b8bd6b

Subscribe to this mod's changes

doc-first-dev CLAUDE.md is an instructions file published in the GitHub repository zzusp/doc-first-dev (6 stars, last pushed 4mo ago), licensed MIT. It adds 316 tokens to every session, about $0.0016 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.