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/afk-surf/openbridge/format-converternpx skills add AFK-surf/OpenBridge --skill format-convertergit clone --depth 1 https://github.com/AFK-surf/OpenBridgeWrote 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/afk-surf/openbridge/format-converter)<a href="https://agentmods.dev/skills/afk-surf/openbridge/format-converter"><img src="https://agentmods.dev/badge/skills/afk-surf/openbridge/format-converter.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 | $0.00025 | $0.00487 |
| Opus 5 | $0.00013 | $0.00244 |
| Sonnet 5 | $0.00005 | $0.00097 |
| Haiku 4.5 | $0.00003 | $0.00049 |
Grade A, and why
format-converter 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
File Format Conversion
Execution Environment
Run format conversion commands in the local VM environment by default. Do not perform conversion work on local macOS or a cloud VM unless the user explicitly asks for that environment.
Workflow Decision
| Task | Tool | Reference |
|---|---|---|
| Document conversion | pandoc | document-convert.md |
| Image format conversion | Python (Pillow) | image-convert.md |
| Audio/video conversion | ffmpeg | av-convert.md |
Quick Reference
Document Conversion
Read references/document-convert.md for detailed workflow.
Key points:
- PDF generation: ALWAYS use
--pdf-engine=weasyprint(lightweight, auto-installed) - Pandoc supports markdown, HTML, PDF, DOCX, LaTeX, and many more formats
# PDF from markdown
pandoc input.md -o output.pdf --pdf-engine=weasyprint
# DOCX from HTML
pandoc input.html -o output.docx
Image Conversion
Read references/image-convert.md for detailed workflow.
Key points:
- Use
Image.LANCZOSfor any resize operation (prevents color banding/aliasing) - Convert RGBA to RGB before saving as JPEG
- Preserve EXIF metadata when possible
# Dependencies
apt install python3-pil python3-pillow-heif
Audio/Video Conversion
Read references/av-convert.md for detailed workflow.
Key points:
- Use
-c copywhen only changing container format (fast, lossless) - Use
flags=lanczosin scale filters for best quality - Use
-crffor quality-based encoding
Check ffmpeg available before using it.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 67 lines · 25 tokens per session scan A 40bf3e7a4ee6
format-converter is a skill published in the GitHub repository AFK-surf/OpenBridge (426 stars, last pushed 2mo ago), licensed MIT. It adds 25 tokens to every session and 487 once invoked, about $0.0001 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.
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