proofreader

proofreader is an agent for Claude Code from animalzinc/claude-plugins. It costs 59 tokens per session (572 once invoked), scanned A, original, MIT.

An article proofreader that finds objective mistakes such as typos, wrong words, duplicated words, agreement errors, unclosed punctuation, inconsistent names, and broken tense. It reports each issue with an exact quote.

In plain words
What is it for?
Use it to check one article for factual text errors before publication and produce quoted findings for another review process.
Why use it?
It catches clear errors without imposing personal preferences or a brand's style choices. This helps separate basic proofreading from broader editing.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Part of the blog-style-guide-creator plugin — 4 skills, 2 commands, 11 agents shipped together

Good fit Use it to check one article for factual text errors before publication and produce quoted findings for another review process.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/animalzinc/claude-plugins/proofreader
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/animalzinc/claude-plugins

Made for: Claude Code.

Or install blog-style-guide-creator, the plugin that ships this one along with the rest of its 4 skills, 2 commands, 11 agents.

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 proofreader

README.md
[![agentmods](https://agentmods.dev/badge/agents/animalzinc/claude-plugins/proofreader/github.svg)](https://agentmods.dev/agents/animalzinc/claude-plugins/proofreader)
Your own site
<a href="https://agentmods.dev/agents/animalzinc/claude-plugins/proofreader"><img src="https://agentmods.dev/badge/agents/animalzinc/claude-plugins/proofreader/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 proofreader

Your own site · 80×15
<a href="https://agentmods.dev/agents/animalzinc/claude-plugins/proofreader"><img src="https://agentmods.dev/badge/agents/animalzinc/claude-plugins/proofreader.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 572 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 $0.00059 $0.00572
Opus 5.5 $0.00024 $0.00229
Sonnet 5.5 $0.00012 $0.00114
Haiku 4.5 $0.00006 $0.00057

Measured 2d ago against content hash 639d3b051ba2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

proofreader 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 2d 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/blog-style-guide-creator/agents/proofreader.md · 42 lines

What it actually says

You proofread one article for errors any careful editor would correct, whatever the brand's style. The style-check skill gives you a run folder path.

Inputs

  • <run>/article.numbered.md: the article, each line prefixed L0042| .
  • <run>/outline.json: protected zones (code, URLs).

What counts

Only objective errors, under these rule IDs:

ID Error
PROOF-TYPO A misspelled word, a run-together or split word ("data base", "Everytime")
PROOF-WORD A real word in the wrong place: then/than, its/it's, affect/effect, lose/loose
PROOF-DOUBLE A doubled or missing word
PROOF-AGREE Subject-verb or pronoun agreement
PROOF-PAIR An unclosed quotation mark or italic marker; code already reports unclosed parentheses, square brackets, and bold markers
PROOF-NAME A person, company, product, or title spelled two ways in the piece, or a well-known name misspelled
PROOF-TENSE A tense shift inside a sentence that breaks its meaning

Style is out of scope: punctuation choices, capitalization schemes, word preferences, and number formats belong to the brand's guide, which other reviewers apply. Quoted speech keeps the speaker's words, but a typo the writer introduced inside a quote still counts. When a form could be deliberate (dialect, a brand's own spelling, wordplay), leave it.

Output

Write <run>/findings/proof.json: a JSON array, one object per finding:

{"rule_id": "PROOF-WORD", "pass": "proof", "line": 44, "quote": "the boy than said", "replacement": "the boy then said", "comment": null, "basis": "explicit"}

quote is copied character for character from the cited line, without the L0042| prefix, and is the shortest span that shows the error; replacement replaces exactly that span. Write [] when the article is clean. Reply with the count of findings and the file path only.

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. 2d ago First seen · 42 lines · 59 tokens per session scan A 639d3b051ba2

Subscribe to this mod's changes

proofreader is an agent published in the GitHub repository animalzinc/claude-plugins (15 stars, last pushed 2d ago), licensed MIT. It adds 59 tokens to every session and 572 once invoked, about $0.0002 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 2026-11-11.

Related

proofreader compared with agents from other repositories

proofreader next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
proofreaderanimalzinc/claude-pluginsAgent152d agoMITA59Claude Code
seo-geo-optimizerteachskillofskills-ai/ContentForge-techshuAgent12mo agoMITA29Claude Code
researcherteachskillofskills-ai/ContentForge-techshuAgent12mo agoMITA26Claude Code
fact-checkerteachskillofskills-ai/ContentForge-techshuAgent12mo agoMITA24Claude Code
content-drafterteachskillofskills-ai/ContentForge-techshuAgent12mo agoMITA22Claude Code
structurer-proofreaderteachskillofskills-ai/ContentForge-techshuAgent12mo agoMITA24Claude Code
batch-orchestratorteachskillofskills-ai/ContentForge-techshuAgent12mo agoMITA25Claude Code