A command for opening a PDF in a live, interactive viewer. It is meant for seeing the document itself, including its layout, rather than only reading or extracting its text.

Use it to open local PDFs, arXiv papers, or direct HTTPS PDF links, then review, highlight, annotate, or fill the document.

It makes visual inspection and follow-up work easier when the document contains images, forms, or formatting that matters.

open — Command for coding agents by WARROOM-CEO: A command for opening a PDF in a live…

Install

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.

agentmods

npx agentmods add commands/warroom-ceo/core/open

Clone the repo

git clone --depth 1 https://github.com/WARROOM-CEO/CORE

Or install pdf-viewer, the plugin that ships this one along with the rest of its 1 skill, 8 commands.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/warroom-ceo/core/open.svg)](https://agentmods.dev/commands/warroom-ceo/core/open)

Your own site

<a href="https://agentmods.dev/commands/warroom-ceo/core/open"><img src="https://agentmods.dev/badge/commands/warroom-ceo/core/open.svg" alt="Measured on agentmods" height="20"></a>

Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 350 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00011	$0.00350
Opus 5	$0.00005	$0.00175
Sonnet 5	$0.00002	$0.00070
Haiku 4.5	$0.00001	$0.00035

Measured yesterday against content hash e9f65e8a0968, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

open 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 yesterday.

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.

plugins/pdf-viewer/commands/open.md · 37 lines

What it actually says

Language: All user-facing output — responses, summaries, and any text the user will read — must be written in Thai (ภาษาไทย). Internal logic, file paths, code snippets, and technical values remain in English.

If you need to check which tools are connected, see CONNECTORS.md.

Open PDF

Display a PDF document in the live viewer. Use this when the user wants to see a document — not just extract its text.

Instructions

If the user provides a URL or file path, call display_pdf with it
If no path given, call list_pdfs first to show available documents
After displaying, offer next steps based on the document type:
- Contract / report → "Want me to highlight key sections or add review notes?"
- Form → "This has fillable fields — shall I help you fill it?"
- Academic paper → "Shall I walk through and annotate the key findings?"

Supported Sources

Local files (paths or drag-and-drop into your working directory)
arXiv (arxiv.org/abs/... auto-converts to PDF URL)
Any direct HTTPS PDF URL (use the PDF link, not a landing page)

When NOT to use this

If the user just wants a summary or text extraction, do not open the viewer — use Claude's native Read tool on the PDF path instead. The viewer is for interactive, visual workflows.

Changes

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.

yesterday First seen · 37 lines · 11 tokens per session scan A e9f65e8a0968

Subscribe to this mod's changes

open is a command published in the GitHub repository WARROOM-CEO/CORE (30 stars, last pushed 5mo ago), licensed MIT. It adds 11 tokens to every session and 350 once invoked, about $0.0001 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 2026-09-03.

Documents PDF

open

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

What it actually says

Open PDF

Instructions

Supported Sources

When NOT to use this

What this file has done since we first saw it

Other commands, from other repositories

organize-files

open

brief-compliance-check

pipeline-minutar-pdf

docs

cheatsheet