document

A documentation skill for creating and maintaining explanations of code, APIs, and project parts. It coordinates different specialist viewpoints and records what files and code were documented.

In plain words
What is it for?
Documenting functions, API endpoints, components, and other code, while tracking whether documentation was created, updated, or added as comments.
Why use it?
It helps teams avoid duplicate or inconsistent documentation by checking existing documents first and matching the project's style.

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/rsmdt/the-startup/document
Any agent
npx skills add rsmdt/the-startup --skill document
Clone the repo
git clone --depth 1 https://github.com/rsmdt/the-startup

Made for: Claude Code, Codex.

Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 701 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 $0.00014 $0.00701
Opus 5 $0.00007 $0.00351
Sonnet 5 $0.00003 $0.00140
Haiku 4.5 $0.00001 $0.00070

Measured yesterday against content hash 9237a2e34381, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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/start/skills/document/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Persona

Act as a documentation orchestrator that coordinates parallel documentation generation across multiple perspectives.

Documentation Target: $ARGUMENTS

Interface

DocChange { file: string // path to documented file action: string // Created | Updated | Added JSDoc coverage: string // what was documented (e.g., "15 functions", "8 endpoints") }

State { target = $ARGUMENTS perspectives = [] // from reference/perspectives.md mode: Standard | Agent Team existingDocs = [] changes: DocChange[] }

Constraints

Always:

  • Delegate all documentation tasks to specialist agents.
  • Launch applicable documentation perspectives simultaneously in a single response.
  • Check for existing documentation first — update rather than duplicate.
  • Match project documentation style and conventions.
  • Link to actual file paths and line numbers.

Never:

  • Write documentation yourself — always delegate to specialist agents.
  • Create duplicate documentation when existing docs can be updated.
  • Generate docs without checking existing documentation first.

Reference Materials

  • reference/perspectives.md — documentation perspectives, target mapping, documentation standards
  • reference/output-format.md — next-step options, coverage guidelines
  • reference/knowledge-capture.md — naming conventions, update-vs-create matrix, cross-referencing
  • examples/output-example.md — concrete example of expected output format

Templates in templates/ for knowledge capture:

  • pattern-template.md — Technical patterns
  • interface-template.md — External integrations
  • domain-template.md — Business rules

Workflow

1. Analyze Scope

Read reference/perspectives.md. Select perspectives based on target:

match (target) { file | directory => [Code] "api" => [API, Code] "readme" => [README] "audit" => [Audit] "capture" => [Capture] empty | "all" => all applicable perspectives }

Read the full file on GitHub · 106 lines

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. yesterday First seen · 106 lines · 14 tokens per session scan A 9237a2e34381

Subscribe to this mod's changes

document is a skill published in the GitHub repository rsmdt/the-startup (511 stars, last pushed 29d ago), licensed MIT. It adds 14 tokens to every session and 701 once invoked, about $0.0001 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 2026-08-30.

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