wiswa-mcp: Skill for Claude Code

.claude/skills/prose-lint/SKILL.md

prose-lint is a skill for Claude Code from Tatsh/wiswa-mcp. It costs 0 tokens per session (2,011 once invoked), scanned A, original, MIT.

A prose-checking skill that audits writing against the rules in a project's .claude/rules/prose.md file and applies fixes. Prose means the ordinary sentences and paragraphs in documents, comments, and user-facing messages.

In plain words
What is it for?
Use it to review pending changes, specified files, or a selected diff range. It checks Markdown, comments, documentation comments, and text shown to users, then rewrites violations.
Why use it?
It catches wording that breaks the project's writing rules, including borderline cases that a loose review might overlook. It also defines which changed files and kinds of text should be checked.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

This is Tatsh/wiswa-mcp's own configuration. It tells Claude Code how to work on wiswa-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything wiswa-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Tatsh/wiswa-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Tatsh/wiswa-mcp/master/.claude/skills/prose-lint/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Tatsh/wiswa-mcp

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 prose-lint

README.md
[![agentmods](https://agentmods.dev/badge/skills/tatsh/wiswa-mcp/prose-lint/github.svg)](https://agentmods.dev/skills/tatsh/wiswa-mcp/prose-lint)
Your own site
<a href="https://agentmods.dev/skills/tatsh/wiswa-mcp/prose-lint"><img src="https://agentmods.dev/badge/skills/tatsh/wiswa-mcp/prose-lint/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 prose-lint

Your own site · 80×15
<a href="https://agentmods.dev/skills/tatsh/wiswa-mcp/prose-lint"><img src="https://agentmods.dev/badge/skills/tatsh/wiswa-mcp/prose-lint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,011 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 $0.02011
Opus 5.5 $0.00000 $0.00804
Sonnet 5.5 $0.00000 $0.00402
Haiku 4.5 $0.00000 $0.00201

Measured 1mo ago against content hash e856ad4548ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

prose-lint 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/skills/prose-lint/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prose lint

Audit prose against .claude/rules/prose.md and apply the fixes.

Read that rules file in full before the first edit. This skill describes the procedure only; the rules file is the authority on what is banned.

Audit adversarially. When a sentence is defensible under a loose reading and a violation under a strict one, treat it as a violation. A borderline construction is rewritten, not excused, and doubt resolves toward the edit. Under-reporting is the failure mode to avoid. A grep hit stands until you can state which exemption in this file covers it.

Scope

Default target

Audit files with pending changes, from git status --porcelain and git diff --name-only HEAD. When the user gives paths or a diff range, use those instead.

Audit every piece of prose inside each target file:

  • Markdown body text, including headings, list items, table cells, and admonitions.
  • Plain comments in any language.
  • Formal documentation comments (Numpydoc, JSDoc, Doxygen, Javadoc, XML doc comments). The same standard applies to them as to Markdown body text.
  • User-facing string literals such as log messages, help text, error messages, and CLI output.
  • Commit messages under review.

Do not edit:

  • Identifiers, code, URLs, file paths, and dependency names.
  • Assistant instructions. AGENTS.md, CLAUDE.md, and everything under .claude/ are out of scope, including when the user requests every file (everywhere, the whole repository, a glob that covers them). Report a hit in one of them only when the user has requested a change to that file.
  • Fenced blocks and italic examples inside .claude/rules/prose.md. They exist to demonstrate violations.
  • Released CHANGELOG.md sections. Only the Unreleased section is in scope.
  • Quoted material from an external source. Flag it for the user instead.

Detection

Run the greps below over the target files, then review every hit by hand. Each grep over-matches by design; a noun matching a banned verb is valid, and the fix depends on the sentence. claim is valid wherever a specification defines it as a term, such as an OIDC or JWT claim. The noun project is valid and accounts for most hits on that word. Only the verb is banned, and the geometric sense of the verb is valid too. The noun ask is banned as well. Review every hit on that word rather than excusing the noun.

Read the full file on GitHub · 148 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 Changed · +28 lines e856ad4548ae
  2. 1mo ago First seen · 120 lines · 0 tokens per session scan A a0bf99a8f30c

Subscribe to this mod's changes

prose-lint is a skill published in the GitHub repository Tatsh/wiswa-mcp (0 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,011 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 2026-09-11.

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