A writing guide for public-service websites, forms, applications, notices, and help content. It focuses on helping people complete government tasks while keeping rules, rights, deadlines, and amounts accurate.

Use it to draft, rewrite, or review content for government services and other digital experiences where people must understand requirements and take a specific action.

It reduces confusion and unnecessary effort caused by jargon, hidden requirements, repeated information, unclear status, or missing alternatives.

18f-content — Skill for Claude Code and Codex by Neeeophytee

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 Neeeophytee/agent-stylebooks --skill 18f-content

Clone the repo

git clone --depth 1 https://github.com/Neeeophytee/agent-stylebooks

Made for: Claude Code, Codex.

Or install agent-stylebooks, the plugin that ships this one along with the rest of its 16 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/neeeophytee/agent-stylebooks/18f-content/github.svg)](https://agentmods.dev/skills/neeeophytee/agent-stylebooks/18f-content)

Your own site

<a href="https://agentmods.dev/skills/neeeophytee/agent-stylebooks/18f-content"><img src="https://agentmods.dev/badge/skills/neeeophytee/agent-stylebooks/18f-content/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/neeeophytee/agent-stylebooks/18f-content"><img src="https://agentmods.dev/badge/skills/neeeophytee/agent-stylebooks/18f-content.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 656 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 pass 7 Sept 2026

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.

Model	Per session	Once invoked
Fable 5.1	$0.00063	$0.00656
Opus 5.5	$0.00025	$0.00262
Sonnet 5.5	$0.00013	$0.00131
Haiku 4.5	$0.00006	$0.00066

Measured 2mo ago against content hash 11a87a81e0d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

18f-content 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 2mo 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/18f-content/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

18F content

Design content as part of the service. Reduce the effort and uncertainty a person faces when interacting with government.

Preserve policy and rights

Keep eligibility rules, legal obligations, deadlines, amounts, records, and appeal rights exact.
Do not turn an agency preference into a legal requirement.
Separate the common path, exceptions, and discretionary decisions.
Flag any wording change that may require policy or legal review.

Map the service task

Identify what the person is trying to accomplish and what may be at stake.
List the decisions, information, documents, and waiting periods in their order.
Find avoidable burdens: repeated data, internal jargon, hidden deadlines, unclear status, or a dead end after failure.
Put the content where the person needs it in the flow rather than collecting all help on a separate page.
Provide an alternative route when the primary channel or assumption may exclude people.

Write plain, inclusive content

Lead with the person's goal, status, or next action.
Use common words, active voice, and concrete verbs.
Address the person as you. Name the agency or system when it acts.
Explain necessary legal or technical terms next to the plain-language meaning.
Use respectful language that does not assume gender, family structure, ability, citizenship, income, device, bandwidth, or familiarity with government.
Ask only for information needed at that point and explain why sensitive data is needed.
Make help and error messages describe recovery, not merely failure.

Write forms and transactions

Give fields visible labels that name the requested information.
Use hint text for format, scope, or reason, not to repeat the label.
Put validation near the field and say how to fix the value.
Confirm what was submitted, what happens next, how long it may take, and how to correct or follow up on the submission.
Do not use color, position, or visual wording as the only cue.

Read the full file on GitHub · 68 lines

Files

What ships with it

2 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.

2mo ago First seen · 68 lines · 63 tokens per session scan A 11a87a81e0d0

Subscribe to this mod's changes

18f-content is a skill published in the GitHub repository Neeeophytee/agent-stylebooks (78 stars, last pushed 2mo ago), licensed MIT. It adds 63 tokens to every session and 656 once invoked, about $0.0003 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.

Claude Code Writing and docs agent-skills content-design documentation gemini-cli openai-codex

18f-content next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
18f-contentNeeeophytee/agent-stylebooks	Skill	78	2mo ago	MIT	A	63	Claude Code, Codex
readmethuanvd378/write-me-a-readme	Skill	2	3mo ago	MIT	A	103	Claude Code, Codex
yapperdzan314/yapper	Skill	1	6mo ago	MIT	A	54	Claude Code, Codex
spec-kitty-charter-doctrinePriivacy-ai/spec-kitty	Skill	1.7k	19d ago	MIT	A	135	Claude Code, Codex
mongodb-query-optimizerfcakyon/claude-codex-settings	Skill	1.2k	yesterday	Apache-2.0	A	98	Claude Code
chisle-auditJayPokale/Chisle	Skill	741	14d ago	MIT	A	130	Claude Code
crane-shotcafe3310/public-agent-skills	Skill	256	yesterday	Apache-2.0	A	25	Claude Code, Codex