document

document is a skill for Claude Code from archcore-ai/plugin. It costs 183 tokens per session (2,726 once invoked), scanned A, original, Apache-2.0.

A guided tool for recording technical decisions or explaining how existing code works. It can produce decision records, proposals, specifications, documentation, or guides.

In plain words
What is it for?
Use it when choosing technologies, setting team standards, proposing changes, or documenting modules and workflows.
Why use it?
It keeps the reasons behind choices and the current system design from being lost or misunderstood.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the archcore plugin — 4 skills, 4 commands, 2 agents, 3 hooks shipped together

Good fit Use it when choosing technologies, setting team standards, proposing changes, or documenting modules and workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/archcore-ai/plugin/document
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 archcore-ai/plugin --skill document
Clone the repo
git clone --depth 1 https://github.com/archcore-ai/plugin

Made for: Claude Code.

Or install archcore, the plugin that ships this one along with the rest of its 4 skills, 4 commands, 2 agents, 3 hooks.

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 document

README.md
[![agentmods](https://agentmods.dev/badge/skills/archcore-ai/plugin/document/github.svg)](https://agentmods.dev/skills/archcore-ai/plugin/document)
Your own site
<a href="https://agentmods.dev/skills/archcore-ai/plugin/document"><img src="https://agentmods.dev/badge/skills/archcore-ai/plugin/document/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 document

Your own site · 80×15
<a href="https://agentmods.dev/skills/archcore-ai/plugin/document"><img src="https://agentmods.dev/badge/skills/archcore-ai/plugin/document.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 183 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,726 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 64
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00183 $0.02726
Opus 5.5 $0.00073 $0.01090
Sonnet 5.5 $0.00037 $0.00545
Haiku 4.5 $0.00018 $0.00273

Measured 29d ago against content hash 431ee11ca47a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

document 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 29d 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.

plugins/archcore/skills/document/SKILL.md · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/archcore:document

Record the present state: a technical decision, existing code, or a supplied research material. The first word of the arguments selects the mode; a gate inside the mode's track selects the document type. Write affinity: knowledge types; a filed research and the decision cascade's plan belong to vision. The standard cascade can add a cpat (experience).

Command tense: /archcore:plan declares a future canon delta, /archcore:document records the present state — including work that shipped without a plan — and /archcore:review reconciles a past declared delta. Δ vocabulary: skills/_shared/delta-routing.md.

Load skills/_shared/gate-contract.md and skills/_shared/elicitation-contract.md before executing any gate.

Modes

Mode Track and entry Types the entry gate selects
decision skills/_shared/tracks/decision.md, decision.classify adr, rfc; rule through the standard cascade; an existing rfc draft on the topic → decision.resolve, which records an adr on an accepted verdict
code skills/_shared/tracks/describe.md, describe.read spec, doc, guide, scenario
research skills/_shared/tracks/research.md, research.frame research, rnd by the closing test; one external material → evidence

A document type name is not a mode. When the subject text names a type (skills/_shared/gate-contract.md, Entry terms) that the mode's track produces, the selecting gate treats that type as settled and asks no type question: document decision rfc for gRPC reaches the RFC branch. A leading word that is not a mode is topic text and goes through classification (Step 3). No mode produces a journey; an intended user path belongs to /archcore:plan.

When to use

  • "We decided to go with microservices" — settled decision
  • "Record the decision to use PostgreSQL"
  • "Document why we chose JWT over sessions"
  • "Make this our team standard for error handling"
  • "Draft an RFC for switching from REST to gRPC"
  • "Should we switch to Kubernetes?" — open proposal
  • "We accepted the proposal — resolve the RFC" — proposal resolution
  • "Document the auth module"
  • "Capture how the payment system works"
  • "Create reference docs for the config system" — reference material
  • "Write a guide for the release process" — how-to instructions
  • document code scenario for checkout — a user flow with examples over an existing spec
  • document research <report> — file a ready investigation
  • document research <material> — file one external material as evidence

Read the full file on GitHub · 181 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. 29d ago Changed · +29 lines · +59 tokens per session 431ee11ca47a
  2. 1mo ago Changed · +1 lines f4ba1ecfede4
  3. 1mo ago Changed · +20 lines · +19 tokens per session ece4c4b93f2a
  4. 1mo ago First seen · 131 lines · 105 tokens per session scan A efd584f731c8

Subscribe to this mod's changes

document is a skill published in the GitHub repository archcore-ai/plugin (58 stars, last pushed 26d ago), licensed Apache-2.0. It adds 183 tokens to every session and 2,726 once invoked, about $0.0007 per session on Opus 5.5. 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.