A documentation style checker for Markdown files. It reads the repository's STYLE.md rules, applies safe wording fixes, respects ignore markers, and reports changes that need a person.

Use it to check the docs directory or a narrower path, fix safe style issues, or run a check-only audit.

It removes repetitive manual checks for spelling, document length, and other agreed writing rules without changing passages that require editorial judgement.

How banshee-data/velocity.report configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to banshee-data/velocity.report. 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/banshee-data/velocity.report/main/.claude/skills/style-fix/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/banshee-data/velocity.report

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/banshee-data/velocity.report/style-fix/github.svg)](https://agentmods.dev/skills/banshee-data/velocity.report/style-fix)

Your own site

<a href="https://agentmods.dev/skills/banshee-data/velocity.report/style-fix"><img src="https://agentmods.dev/badge/skills/banshee-data/velocity.report/style-fix/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/banshee-data/velocity.report/style-fix"><img src="https://agentmods.dev/badge/skills/banshee-data/velocity.report/style-fix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,152 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00036	$0.01152
Opus 5.5	$0.00014	$0.00461
Sonnet 5.5	$0.00007	$0.00230
Haiku 4.5	$0.00004	$0.00115

Measured 1mo ago against content hash 0256c67a3abc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

style-fix scanned grade C with 1 finding 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

- `` anywhere in a file: skip the file entirely

.claude/skills/style-fix/SKILL.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: style-fix

Audit Markdown prose against .github/STYLE.md, apply safe automatic fixes, and report anything that still needs a human sentence rather than a blind substitution.

Usage

/style-fix
/style-fix docs --ignore-plans
/style-fix docs/ui --check-only

Scope and ignore markers

Default scope: docs/
Optional path argument narrows the scan to a file or subdirectory
--ignore-plans skips docs/plans/**
 anywhere in a file: skip the file entirely
 anywhere in a file: skip only the 800-line check

Use  for files whose format is intentionally hostile to mechanical prose cleanup, such as the decisions register.

Use  for files that are intentionally long but still valid for their role, such as an ongoing log.

What this skill checks

1. British English

Look for the explicit STYLE.md pairs in prose outside fenced code blocks:

analyse, not analyze
behaviour, not behavior
centre, not center
colour, not color
licence (noun), not license
metre, not meter
neighbour, not neighbor
organisation, not organization
travelled, not traveled
visualisation, not visualization

Do not rewrite external API names, CSS properties, CLI flags, file paths, or quoted identifiers that intentionally use American spelling.

2. Punctuation

Find em dashes in prose outside fenced code blocks.

Prefer:

a colon for consequence or explanation
a comma for a short aside
a full stop when the clause deserves its own sentence

Do not rewrite mathematical arrows, ASCII diagrams, table separators, or code.

3. Machine timestamps

Find machine-style timestamps in docs prose and examples. Convert them to UTC ISO 8601 with trailing Z when the text is presenting a machine-written value.

Examples:

2025-03-02 00:00:00 UTC -> 2025-03-02T00:00:00Z
2025-03-02 00:00:15 UTC -> 2025-03-02T00:00:15Z

Read the full file on GitHub · 164 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.

1mo ago First seen · 164 lines · 36 tokens per session scan C 0256c67a3abc

Subscribe to this mod's changes

style-fix is a skill published in the GitHub repository banshee-data/velocity.report (11 stars, last pushed today), licensed Apache-2.0. It adds 36 tokens to every session and 1,152 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-25.

Writing and docs lidar radar road-safety street-safety traffic-analysis urban-analytics

style-fix next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
style-fixbanshee-data/velocity.report	Skill	11	today	Apache-2.0	C	36	Claude Code
analyzing-network-traffic-for-incidentsmukul975/Anthropic-Cybersecurity-Skills	Skill	36k	2mo ago	Apache-2.0	A	91	Claude Code
analyzing-network-packets-with-scapymukul975/Anthropic-Cybersecurity-Skills	Skill	36k	2mo ago	Apache-2.0	A	75	Claude Code
analyzing-network-traffic-with-wiresharkmukul975/Anthropic-Cybersecurity-Skills	Skill	36k	2mo ago	Apache-2.0	B	49	Claude Code
whitebox-toolsznlgis/opengis-skills	Skill	76	10d ago	MIT	A	119	Claude Code, Codex
performing-network-packet-capture-analysisxalgorix/xalgorix	Skill	1.3k	yesterday	Apache-2.0	C	62	Claude Code, Codex
pdalznlgis/opengis-skills	Skill	76	10d ago	MIT	B	90	Claude Code, Codex

velocity.report: Skill for Claude Code