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/ericwang915/pythonclaw/pdf_mergenpx skills add ericwang915/PythonClaw --skill pdf_mergegit clone --depth 1 https://github.com/ericwang915/PythonClawWhat 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 | $0.00045 | $0.00459 |
| Opus 5 | $0.00023 | $0.00230 |
| Sonnet 5 | $0.00009 | $0.00092 |
| Haiku 4.5 | $0.00005 | $0.00046 |
Grade A, and why
pdf_merge 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 2d 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
PDF Merge Skill
Merge multiple PDF files into one combined document using PyPDF2.
When to Use
✅ USE this skill when:
- "Merge these PDFs together"
- "Combine report1.pdf and report2.pdf"
- "Join all PDFs in this folder"
- "Append this PDF to the end of another"
- User wants to create a single PDF from multiple source PDFs
When NOT to Use
❌ DON'T use this skill when:
- Splitting a single PDF → use
pdf_split - Creating a PDF from text → use
pdf_writer - Extracting text from PDF → use
pdf_reader - Converting PDF to images → use
pdf_convert
Usage/Commands
python {skill_path}/merge_pdf.py OUTPUT_PATH INPUT1 INPUT2 [INPUT3 ...] [options]
Options:
--pages "1:1-3,2:5-10"— select specific pages per input file (1-indexed, file_index:page_range)--dir PATH— merge all PDFs in a directory (alphabetical order)--reverse— reverse the input order--format json— output result as JSON
Examples
- "Merge a.pdf and b.pdf" →
python {skill_path}/merge_pdf.py combined.pdf a.pdf b.pdf - "Merge all PDFs in reports/" →
python {skill_path}/merge_pdf.py combined.pdf --dir reports/ - "Combine only pages 1-3 of first and 5-10 of second" →
python {skill_path}/merge_pdf.py out.pdf a.pdf b.pdf --pages "1:1-3,2:5-10"
Notes
- Install dependency:
pip install PyPDF2 - Input files must be valid PDFs
- Preserves bookmarks and links when possible
What ships with it
1 file 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.
- 2d ago First seen · 53 lines · 45 tokens per session scan A 5cbb57815ce4
pdf_merge is a skill published in the GitHub repository ericwang915/PythonClaw (41 stars, last pushed 24d ago), licensed MIT. It adds 45 tokens to every session and 459 once invoked, about $0.0002 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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