docs-system

docs-system is a skill for Claude Code, Codex from bestdeejay-design/agent-skills. It costs 122 tokens per session (679 once invoked), scanned A, original, MIT.

A documentation guide that routes work between product documents, which explain why and what, and project documents, which explain how. It also defines writing order, completeness levels, and a checklist.

In plain words
What is it for?
Use it to decide which documentation to create, in what order, and how much detail is needed for a project’s size.
Why use it?
It prevents teams from mixing product decisions with implementation details and helps reveal missing documentation.

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/bestdeejay-design/agent-skills/docs-system
Any agent
npx skills add bestdeejay-design/agent-skills --skill docs-system
Clone the repo
git clone --depth 1 https://github.com/bestdeejay-design/agent-skills

Made for: Claude Code, Codex.

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 docs-system

README.md
[![agentmods](https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/docs-system.svg)](https://agentmods.dev/skills/bestdeejay-design/agent-skills/docs-system)
Your own site
<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/docs-system"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/docs-system.svg" alt="Measured on agentmods" height="20"></a>
Per session 122 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 679 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 $0.00122 $0.00679
Opus 5 $0.00061 $0.00340
Sonnet 5 $0.00024 $0.00136
Haiku 4.5 $0.00012 $0.00068

Measured 5d ago against content hash 7b0fe872962a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docs-system 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 5d 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/docs-system/SKILL.md · 56 lines

What it actually says

Docs System — meta-guide & router

This skill is now the meta-guide. The two branches live in focused skills: load them directly. Use this skill for the big picture: which docs to write, in which order, and how complete the set must be.

Two branches of documentation

Branch Answers Skill
Product docs — «why» and «what» VISION → PRD → ROADMAP → FEATURES docs-product
Project docs — «how» README/ENTRY/ARCHITECTURE/ADR/contracts/tests + REFERENCE map docs-project

Rule: product docs answer «why» and «what»; engineering docs answer «how». If a doc has no reader and no question it answers — it does not belong.

When to use this skill (router)

  • The task is about the documentation SYSTEM as a whole: what to write, in what order, how complete.
  • The phases / levels / completeness gates need to be applied.
  • The task is clearly product OR engineering → load the branch directly instead.

Order and levels

  • Phase order (when to write each doc): references/order.md.
  • Levels L1/L2/L3 (how deep a doc set must be for the system size): references/levels.md.
  • Completeness checklist (what a complete doc set looks like): references/completeness.md.

Golden rules

  • Nothing is written "from the end": VISION → PRD → ROADMAP → FEATURES, then engineering docs.
  • Contracts (OpenAPI/AsyncAPI) are written BEFORE code.
  • The map (REFERENCE.md) is written last — it describes everything above it.
  • Example monorepo that follows all rules: examples/example-monorepo/.
  • Skill roadmap: ROADMAP.md.

Removal plan

Keep as the meta-guide (not deprecated — it still carries order/levels/ completeness). The two branches are the focused entry points.

Files

What ships with it

7 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. 5d ago First seen · 56 lines · 122 tokens per session scan A 7b0fe872962a

Subscribe to this mod's changes

docs-system is a skill published in the GitHub repository bestdeejay-design/agent-skills (5 stars, last pushed today), licensed MIT. It adds 122 tokens to every session and 679 once invoked, about $0.0006 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.