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 SimplePDF/simplepdf-embed --skill agentsgit clone --depth 1 https://github.com/SimplePDF/simplepdf-embedWrote 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/simplepdf/simplepdf-embed/agents)<a href="https://agentmods.dev/skills/simplepdf/simplepdf-embed/agents"><img src="https://agentmods.dev/badge/skills/simplepdf/simplepdf-embed/agents/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/simplepdf/simplepdf-embed/agents"><img src="https://agentmods.dev/badge/skills/simplepdf/simplepdf-embed/agents.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 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 Data Exfiltration · line 24 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Excessive Agency · line 33 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
- medium Excessive Agency · line 136 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
- medium Data Exfiltration · line 47 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 57 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00074 | $0.01360 |
| Opus 5.5 | $0.00030 | $0.00544 |
| Sonnet 5.5 | $0.00015 | $0.00272 |
| Haiku 4.5 | $0.00007 | $0.00136 |
Grade B, and why
edit-pdf scanned grade B with 2 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
response = requests.post("https://agents.simplepdf.com", files={"file": f}) Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST https://agents.simplepdf.com \ How it starts
The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SimplePDF - PDF Editor
Edit and fill PDF documents directly in the browser. Add text, signatures, checkboxes, images, and more.
From a URL
For public PDF URLs, use GET with the URL as a query parameter:
GET https://agents.simplepdf.com?url=https://example.com/form.pdf
For signed or sensitive URLs (e.g. presigned S3 links), use POST with a JSON body to keep the URL out of logs and browser history:
curl -X POST https://agents.simplepdf.com \
-H "Content-Type: application/json" \
-d '{"url": "https://s3.amazonaws.com/bucket/doc.pdf?X-Amz-Signature=..."}'
Both return JSON with the editor URL and embed snippets.
From a file
Upload a PDF file to the API. For security and privacy, the file is stored temporarily (24 hours) then automatically deleted. The user has 24 hours to open the link. Once opened, the PDF is loaded into the browser and processed entirely client-side, so the tab can stay open indefinitely.
Shell
curl -X POST https://agents.simplepdf.com -F [email protected]
TypeScript
const form = new FormData();
form.append("file", new Blob([pdfBytes], { type: "application/pdf" }), "document.pdf");
const response = await fetch("https://agents.simplepdf.com", { method: "POST", body: form });
const { url } = await response.json();
Python
import requests
with open("document.pdf", "rb") as f:
response = requests.post("https://agents.simplepdf.com", files={"file": f})
url = response.json()["url"]
Presenting the result to the user
Always present the url field as a clickable link. This is the primary way users will open the editor.
If you have access to a browser automation tool (e.g. agent-browser, Playwright, chrome-devtools MCP server), offer to open the url directly so the user can edit the PDF without leaving the conversation.
The iframe and react fields are for developers embedding the editor in a web application. Only present these when the user is building a web app.
What ships with it
12 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.
- 1mo ago First seen · 160 lines · 74 tokens per session scan B 9fc8959b62eb
edit-pdf is a skill published in the GitHub repository SimplePDF/simplepdf-embed (407 stars, last pushed 3d ago), licensed MIT. It adds 74 tokens to every session and 1,360 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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