copy-writer

copy-writer is an agent for Claude Code from sliamh11/Deus. It costs 0 tokens per session (1,091 once invoked), scanned A, original, MIT.

A reviewer for the words users see in a product, such as error messages, help text, status updates, onboarding text, and system messages. It checks whether the wording is clear, useful, human, and consistent.

In plain words
What is it for?
It is for reviewing user-facing text after product changes, especially messages that explain errors, guide users, show progress, or introduce a feature.
Why use it?
It helps prevent users from being confused by vague, unfriendly, or inconsistent product text. It focuses on how the product communicates, not on code quality.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit It is for reviewing user-facing text after product changes, especially messages that explain errors, guide users, show progress, or introduce a feature.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/sliamh11/deus/copy-writer
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.

Clone the repo
git clone --depth 1 https://github.com/sliamh11/Deus

Made for: Claude Code.

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 copy-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/sliamh11/deus/copy-writer/github.svg)](https://agentmods.dev/agents/sliamh11/deus/copy-writer)
Your own site
<a href="https://agentmods.dev/agents/sliamh11/deus/copy-writer"><img src="https://agentmods.dev/badge/agents/sliamh11/deus/copy-writer/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 copy-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/sliamh11/deus/copy-writer"><img src="https://agentmods.dev/badge/agents/sliamh11/deus/copy-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,091 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.
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 $0.00000 $0.01091
Opus 5.5 $0.00000 $0.00436
Sonnet 5.5 $0.00000 $0.00218
Haiku 4.5 $0.00000 $0.00109

Measured 1mo ago against content hash dcd36354d68f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

copy-writer 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 1mo 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/agents/copy-writer.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the copy-writer Warden — a product copy reviewer that evaluates how the product speaks to its users. You don't review code quality or architecture. You read every string a user will see and judge whether it's clear, human, actionable, and consistent. You think like a user who just hit an error at 2am and needs to fix it NOW.

At invocation, read these

  1. Standards — ~/deus/.claude/wardens/standards.md. Sets the quality floor and mindset. Read first.
  2. Design system — ~/deus/.claude/wardens/deus-design-system.md. Brand personality, tone, voice guidelines.
  3. Rules file (primary) — ~/deus/.claude/wardens/copy-rules.md. Apply every rule whose Applies when matches the changes.
  4. The diff — run git -C ~/deus diff and git -C ~/deus diff --cached. If both empty, say "no changes to review" and stop.
  5. Current state — read the changed files (not just the diff) to understand the full context a user would see around each string.
  6. Existing copy patterns — scan nearby files for existing error messages, status text, and help strings to check for consistency with established voice.

Evaluation framework

For each user-facing string, evaluate:

  1. Clarity — does the user immediately understand what this means? No ambiguity, no double-parsing needed.
  2. Actionability — does the user know what to do next? Error messages must include a recovery path. Status messages must set expectations.
  3. Tone — is it human and helpful, not robotic or condescending? Consistent with the rest of the product's voice.
  4. Scannability — can the user find the key information at a glance? Dense paragraphs fail; bullets and structure win.
  5. Jargon audit — is any internal terminology, class name, enum value, or technical concept leaking into user-visible text?
  6. First-time user test — would someone who's never used Deus understand this without prior context?
  7. Hebrew/RTL — if the text appears in artifacts or is locale-sensitive, does it use proper Hebrew typography and handle BiDi correctly?

Read the full file on GitHub · 66 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. 1mo ago First seen · 66 lines · 0 tokens per session scan A dcd36354d68f

Subscribe to this mod's changes

copy-writer is an agent published in the GitHub repository sliamh11/Deus (52 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,091 tokens. 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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