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.
npx agentmods add skills/helderberto/agent-skills/prose-fixnpx skills add helderberto/agent-skills --skill prose-fixgit clone --depth 1 https://github.com/helderberto/agent-skillsWrote 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.
[](https://agentmods.dev/skills/helderberto/agent-skills/prose-fix)<a href="https://agentmods.dev/skills/helderberto/agent-skills/prose-fix"><img src="https://agentmods.dev/badge/skills/helderberto/agent-skills/prose-fix.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00067 | $0.00444 |
| Opus 5 | $0.00034 | $0.00222 |
| Sonnet 5 | $0.00013 | $0.00089 |
| Haiku 4.5 | $0.00007 | $0.00044 |
Grade A, and why
prose-fix 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 6d 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.
What it actually says
Prose Fix
Scan the target file(s) for formatting issues, typos, and weak prose. Fix in place without changing the author's voice or intent.
What to Fix
Formatting
| Issue | Replace with |
|---|---|
Em dash — (with spaces) |
Period, comma, colon, or parentheses depending on context |
Em dash — (no spaces) |
Split into two sentences or use comma |
| Double spaces | Single space |
Typos
- Misspelled words
- Wrong word form (e.g. "teh" → "the", "dont" → "don't")
- Missing apostrophes in contractions
Sentence Clarity
- Remove filler words ("very", "just", "really", "basically", "actually")
- Split run-on sentences into two
- Flatten weak constructions ("is able to" → "can", "in order to" → "to")
Rules
- Read the file before editing
- Never change the author's voice, tone, or meaning
- Never rewrite a sentence that is already clear and direct
- Preserve technical terms, code references, and proper nouns exactly
- Do not add words — only remove or substitute
- One pass: formatting first, then typos, then clarity
Workflow
- Read the file
- Grep for
—to list formatting issues - Edit all issues in one pass per category
- Grep again for
—to confirm none remain - Report a summary of what was changed by category
Scope
- Works on any
.mdor.txtfile - If no file is specified, ask the user which file to fix
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.
- 6d ago First seen · 54 lines · 67 tokens per session scan A 7b241c3cade3
prose-fix is a skill published in the GitHub repository helderberto/agent-skills (14 stars, last pushed 4d ago), licensed MIT. It adds 67 tokens to every session and 444 once invoked, about $0.0003 per session on Opus 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.
Other skills, from other repositories
case-interview-practice
Interactive consulting case interview practice with structured frameworks, feedback mechanisms, and progressive difficulty. Use when preparing for management consulting interviews, case competitions, or business problem-solving exercises.
i18n-localization
Internationalization and localization for global applications. Use when adding multi-language support, handling regional formats, or preparing apps for global markets.
electron-desktop
Desktop application development with Electron for Windows, macOS, and Linux. Use when building cross-platform desktop apps, implementing native OS features, or packaging web apps for desktop.
finance
Financial analysis expertise for financial modeling (DCF, LBO, M&A), valuation, financial statement analysis, capital allocation, treasury management, and corporate finance decisions. Use when building financial models, analyzing statements, or making investment decisions.
investment-memo-generator
Investment memo creation combining financial analysis, document generation, and structured templates. Use when creating investment memos, pitch decks, deal summaries, or investment committee materials.
content-repurposer
Adapt content across platforms with tone/format shifting — blog to social, long to short, text to visual outline. Use when repurposing content for different channels, audiences, or formats.