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 skills add Shan-Zhu/shuck-file --skill file-conversiongit clone --depth 1 https://github.com/Shan-Zhu/shuck-fileWrote 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/shan-zhu/shuck-file/file-conversion)<a href="https://agentmods.dev/skills/shan-zhu/shuck-file/file-conversion"><img src="https://agentmods.dev/badge/skills/shan-zhu/shuck-file/file-conversion/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.
<a href="https://agentmods.dev/skills/shan-zhu/shuck-file/file-conversion"><img src="https://agentmods.dev/badge/skills/shan-zhu/shuck-file/file-conversion.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00059 | $0.00478 |
| Opus 5 | $0.00030 | $0.00239 |
| Sonnet 5 | $0.00012 | $0.00096 |
| Haiku 4.5 | $0.00006 | $0.00048 |
Grade A, and why
file-conversion 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 11d 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
File Conversion Skill
Convert documents to clean Markdown. Small files output directly; large files return a document map with extraction options.
When to Use
- User shares or references a
.docx,.pdf,.xlsx,.pptx, or.csvfile - User asks to "read", "analyze", "summarize", or "extract" content from a document
- You encounter a binary file format you cannot read directly
When NOT to Use
- Plain text files (
.txt,.md,.json,.yaml) — read directly - Source code files — read directly
- Image files — use vision capabilities instead
Workflow
1. Run shuck
python "{{PLUGIN_DIR}}/shuck.py" "<path>"
- Small file → full Markdown output (use directly)
- Large file → document map with sections, token counts, and suggested next steps
2. Follow the map (large files only)
The map suggests commands. Pick based on the task:
# Get specific sections
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --sections s1,s3
# Search for keywords
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --grep "revenue"
# Tables only
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --tables-only
# Fit within a token budget
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --budget 4000
# Force full output
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --all
# Excel/CSV: schema or sample
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --schema-only
python "{{PLUGIN_DIR}}/shuck.py" "<path>" --sample 5
Installing Dependencies
pip install python-docx pdfplumber openpyxl python-pptx
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.
- 11d ago First seen · 63 lines · 59 tokens per session scan A 7a545ebfb2d1
file-conversion is a skill published in the GitHub repository Shan-Zhu/shuck-file (6 stars, last pushed 5mo ago), licensed MIT. It adds 59 tokens to every session and 478 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 2026-08-31.
Other skills, from other repositories
doc-reader
Read any common document/data file — PDF, Word (.docx), Excel (.xlsx/.xls), PowerPoint (.pptx), images (OCR), CSV/TSV, plain text, JSON/YAML/TOML, HTML/XML, and most source-code files. Use the readdocument tool.
skill-doc-delivery
Convert markdown to DOCX, PPTX, XLSX, PDF office documents — use when you need exportable deliverables.
unified-deliverable-workflow
Generate spreadsheets, diagrams, and PDF reports with iteration budgeting and error recovery.
document-python-direct-exec
Use direct Python execution for reliable spreadsheet and document/PDF generation operations.
document-direct-python
Use direct Python execution for reliable document creation including spreadsheets, PDFs, and structured reports.
document-python-direct
Use direct Python execution for reliable spreadsheet and document/PDF generation operations.