Knowledge Work Plugins is an open-source collection of Claude extensions organized around roles such as productivity, sales, and customer support. Each plugin combines role-specific guidance, connectors, commands, and sub-agents so knowledge workers can use Claude with their team’s tools and processes. The catalogue entries are examples of, or workflows from, this plugin collection.
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 anthropics/knowledge-work-plugins --skill view-pdfgit clone --depth 1 https://github.com/anthropics/knowledge-work-pluginsWrote 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/anthropics/knowledge-work-plugins/view-pdf)<a href="https://agentmods.dev/skills/anthropics/knowledge-work-plugins/view-pdf"><img src="https://agentmods.dev/badge/skills/anthropics/knowledge-work-plugins/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/anthropics/knowledge-work-plugins/view-pdf"><img src="https://agentmods.dev/badge/skills/anthropics/knowledge-work-plugins/view-pdf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector pass
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 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- view-pdf — 100% identical, 0 lines differ
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.
- 1mo ago First seen · 148 lines · 62 tokens per session scan A 8635c2ca95e7
view-pdf is a skill published in the GitHub repository anthropics/knowledge-work-plugins (32,712 stars, last pushed yesterday), 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.
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