Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/sbusso/claudeclawnpx agentmods add skills/sbusso/claudeclaw/add-pdf-readerWrote 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/sbusso/claudeclaw/add-pdf-reader)<a href="https://agentmods.dev/skills/sbusso/claudeclaw/add-pdf-reader"><img src="https://agentmods.dev/badge/skills/sbusso/claudeclaw/add-pdf-reader/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/sbusso/claudeclaw/add-pdf-reader"><img src="https://agentmods.dev/badge/skills/sbusso/claudeclaw/add-pdf-reader.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 41 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
- medium MCP Rug Pull · line 53 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00037 | $0.00763 |
| Opus 5.5 | $0.00015 | $0.00305 |
| Sonnet 5.5 | $0.00007 | $0.00153 |
| Haiku 4.5 | $0.00004 | $0.00076 |
Grade A, and why
add-pdf-reader 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Add PDF Reader
Adds PDF reading capability to all container agents using poppler-utils (pdftotext/pdfinfo). PDFs sent as WhatsApp attachments are auto-downloaded to the group workspace.
Phase 1: Pre-flight
- Check if
agent/skills/pdf-reader/pdf-readerexists — skip to Phase 3 if already applied - Confirm WhatsApp is installed first (
skill/whatsappmerged). This skill modifies WhatsApp channel files.
Phase 2: Apply Code Changes
Ensure WhatsApp fork remote
git remote -v
If whatsapp is missing, add it:
git remote add whatsapp https://github.com/qwibitai/claudeclaw-whatsapp.git
Merge the skill branch
git fetch whatsapp skill/pdf-reader
git merge whatsapp/skill/pdf-reader || {
git checkout --theirs package-lock.json
git add package-lock.json
git merge --continue
}
This merges in:
agent/skills/pdf-reader/SKILL.md(agent-facing documentation)agent/skills/pdf-reader/pdf-reader(CLI script)poppler-utilsinsrc/runtimes/docker/Dockerfile- PDF attachment download in
src/channels/whatsapp.ts - PDF tests in
src/channels/whatsapp.test.ts
If the merge reports conflicts, resolve them by reading the conflicted files and understanding the intent of both sides.
Validate
npm run build
npx vitest run src/channels/whatsapp.test.ts
Rebuild container
./src/runtimes/docker/build.sh
Service name: Derived from the directory name:
com.claudeclaw.<dirname>(macOS) /claudeclaw-<dirname>(Linux). For example, if cwd ismy-assistant, the service iscom.claudeclaw.my-assistant. Determine the correct service name before running service commands below.
Restart service
launchctl kickstart -k gui/$(id -u)/com.claudeclaw # macOS
# Linux: systemctl --user restart claudeclaw
Phase 3: Verify
Test PDF extraction
Send a PDF file in any registered WhatsApp chat. The agent should:
- Download the PDF to
attachments/ - Respond acknowledging the PDF
- Be able to extract text when asked
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 · 107 lines · 37 tokens per session scan A f57d5bc2d627
add-pdf-reader is a skill published in the GitHub repository sbusso/claudeclaw (194 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 763 once invoked, about $0.0001 per session on Opus 5.5. 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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