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 sun2443/designer-skills --skill view-pdfgit clone --depth 1 https://github.com/sun2443/designer-skillsWrote 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/sun2443/designer-skills/view-pdf)<a href="https://agentmods.dev/skills/sun2443/designer-skills/view-pdf"><img src="https://agentmods.dev/badge/skills/sun2443/designer-skills/view-pdf/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/sun2443/designer-skills/view-pdf"><img src="https://agentmods.dev/badge/skills/sun2443/designer-skills/view-pdf.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 | $0.00062 | $0.01625 |
| Opus 5.5 | $0.00025 | $0.00650 |
| Sonnet 5.5 | $0.00012 | $0.00325 |
| Haiku 4.5 | $0.00006 | $0.00162 |
Grade A, and why
view-pdf 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 13d 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.
This is a copy
100% identical to view-pdf — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PDF Viewer — Interactive Document Workflows
You have access to a local PDF server that renders documents in a live viewer and lets you annotate, fill forms, and place signatures with real-time visual feedback.
When to use this skill
Use the PDF viewer when the user wants interactivity:
- "Show me this contract" / "Open this paper"
- "Highlight the key terms and let me review"
- "Help me fill out this form"
- "Sign this on page 3" / "Add my initials to each page"
- "Stamp this CONFIDENTIAL" / "Mark this as approved"
- "Walk me through this document and annotate the important parts"
Do NOT use the viewer for pure ingestion:
- "Summarize this PDF" → use the native Read tool directly
- "What does page 5 say?" → use Read
- "Extract the table from section 3" → use Read
The viewer's value is showing the user the document and collaborating on markup — not streaming text back to you.
Tools
list_pdfs
List available local PDFs and allowed local directories. No arguments.
display_pdf
Open a PDF in the interactive viewer. Call once per document.
url— local file path or HTTPS URLpage— initial page (optional, default 1)elicit_form_inputs— iftrue, prompts the user to fill form fields before displaying (use for interactive form-filling)
Returns a viewUUID — pass this to every interact call. Calling
display_pdf again creates a separate viewer; interact calls with
the new UUID won't reach the one the user is looking at.
Also returns formFields (name, type, page, bounding box) if the PDF
has fillable fields — use these coordinates for signature placement.
interact
All follow-up actions after display_pdf. Pass viewUUID plus one or
more commands. Batch multiple commands in one call via the
commands array — they run sequentially. End batches with
get_screenshot to verify changes visually.
Annotation actions:
add_annotations— add markup (see types below)update_annotations— modify existing (id + type required)remove_annotations— delete by id arrayhighlight_text— auto-find text by query and highlight it (preferred over manual rects for text markup)
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.
- 13d ago First seen · 148 lines · 62 tokens per session scan A 8635c2ca95e7
view-pdf is a skill published in the GitHub repository sun2443/designer-skills (0 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 62 tokens to every session and 1,625 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to view-pdf, differing in 0 lines, and is treated as a copy.
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