Markitdown
ImCa0/just-laws
Convert files and office documents to Markdown. An agent skill from ImCa0/just-laws.
Extract the embedded text of a PDF, whole or per page, in a Code node or CodeAct action, with pdf-parse running on the host.
Install Sandbox PDF
$ npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nodetool-ai/nodetool sandbox-pdf --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/sandbox-packs/sandbox-pdf .claude/skills/sandbox-pdf && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "sandbox-pdf" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdf into .claude/skills/sandbox-pdf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-pdf", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdfType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nodetool-ai/nodetool sandbox-pdf --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/sandbox-packs/sandbox-pdf .agents/skills/sandbox-pdf && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "sandbox-pdf" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdf into .agents/skills/sandbox-pdf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-pdf", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nodetool-ai/nodetool sandbox-pdf --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/sandbox-packs/sandbox-pdf .cursor/skills/sandbox-pdf && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "sandbox-pdf" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdf into .cursor/skills/sandbox-pdf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-pdf", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/nodetool-ai/nodetool.git --path packages/sandbox-packs/sandbox-pdf--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nodetool-ai/nodetool sandbox-pdf --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/sandbox-packs/sandbox-pdf .gemini/skills/sandbox-pdf && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "sandbox-pdf" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdf into .gemini/skills/sandbox-pdf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-pdf", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install nodetool-ai/nodetool sandbox-pdfInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/sandbox-packs/sandbox-pdf .github/skills/sandbox-pdf && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "sandbox-pdf" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdf into .github/skills/sandbox-pdf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-pdf", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nodetool-ai/nodetool sandbox-pdf --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/sandbox-packs/sandbox-pdf .opencode/skills/sandbox-pdf && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "sandbox-pdf" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-pdf into .opencode/skills/sandbox-pdf/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-pdf", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
sandbox-pdf- GitHub stars
- 560
- Token cost
- ~423 tokens
- SKILL.md length
- 169 words
- Files
- 2
- Skills in repo
- 127
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Extract the embedded text of a PDF, whole or per page, in a Code node or CodeAct action, with pdf-parse running on the host.
- Tasks that involve PDF
- SKILL.md covers extractText — whole document…, extractPages — one item per page and Gotchas
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Sandbox PDF is an agent skill from nodetool-ai/nodetool. Extract the embedded text of a PDF, whole or per page, in a Code node or CodeAct action, with pdf-parse running on the host. It reads text the PDF already carries; it does not OCR a scanned page.
Its SKILL.md is about 420 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `package.json`).
It sits in Documents & Office, covering PDF. The repository describes itself as: Agent-first Creative Workspace. The licence is AGPL-3.0.
When your agent uses it
- Tasks that involve PDF
Example prompts
- “/sandbox-pdf”
What it can do on your machine
Read from SKILL.md and the folder at commit 339f069. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Sandbox PDF loads about 423 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 169 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from nodetool-ai/nodetool at commit 339f069, republished under its AGPL-3.0 licence (© nodetool-ai). 169 words, ~423 tokens.
Download SKILL.mdSave it as
.claude/skills/sandbox-pdf/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- sandbox-pdf
- description
- Extract the embedded text of a PDF, whole or per page, in a Code node or CodeAct action, with pdf-parse running on the host. It reads text the PDF already carries; it does not OCR a scanned page.
PDF text in the sandbox
Specifier: @nodetool-ai/sandbox-pdf. Import it at the top of the body.
pdf-parse drives pdf.js, which needs Node builtins and a canvas; it is not a guest-module candidate. This pack is a host module: the import resolves to a generated facade over NodeTool's own implementation.
extractText — whole document to plain text
import { extractText } from "@nodetool-ai/sandbox-pdf";
const bytes = await workspace.readBytes("report.pdf");
const text = await extractText(bytes);All pages concatenated, in order, with no page markers.
extractPages — one item per page
import { extractPages } from "@nodetool-ai/sandbox-pdf";
const pages = await extractPages(bytes);
// [{ index: 0, pageNumber: 1, text: "Quarterly report" }, ...]Get the bytes from workspace.readBytes, or from a fetched body with
await response.bytes().
Gotchas
- Both exports are async.
- 10 MB per document. Larger input is refused by name.
- No OCR. Both exports read the text layer the PDF already carries. A
scanned page is an image and comes back empty — run
@nodetool-ai/sandbox-ocrover the page image, or a vision model, for that. - Text only. Neither export reads images, tables as tables, or form fields. Layout is approximated from text positions, so column order in a multi-column page is not guaranteed.
- An encrypted or malformed PDF throws with the reason pdf.js gives.
© nodetool-ai, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in packages/sandbox-packs/sandbox-pdf of nodetool-ai/nodetool.
- SKILL.md
- package.json
Open the folder on GitHubat commit 339f069
Compare with similar skills
Sandbox PDF next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Sandbox PDF this skillnodetool-ai/nodetool | 560 | — | ~423 | Automated safety check: Pass | AGPL-3.0 | |
| MarkitdownImCa0/just-laws | 781 | 14 repos | ~3.2k | Automated safety check: Notes | MIT | |
| Gzh Designisjiamu/gzh-design-skill | 4k | — | ~2.2k | Automated safety check: Pass | AGPL-3.0 | |
| GenOffice Document CLIgenspark-ai/genoffice | 9.2k | — | ~19k | Automated safety check: Pass | Apache-2.0 | |
| Harness Book Best Practicewquguru/harness-books | 3.2k | — | ~4.1k | Automated safety check: Pass | None | |
| Bookforge Korean Ebook PDF Makergongnyang/bookforge | 316 | 1 repos | ~1.7k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Sandbox PDF
What does Sandbox PDF do?
Extract the embedded text of a PDF, whole or per page, in a Code node or CodeAct action, with pdf-parse running on the host. Sandbox PDF is an agent skill from nodetool-ai/nodetool. Extract the embedded text of a PDF, whole or per page, in a Code node or CodeAct action, with pdf-parse running on the host.
When should I use Sandbox PDF?
Sandbox PDF fits situations like: tasks that involve PDF.
How do I install Sandbox PDF in Claude Code?
Run `npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a claude-code`. Or copy the skill folder (packages/sandbox-packs/sandbox-pdf in nodetool-ai/nodetool) into .claude/skills/sandbox-pdf in your project. Claude Code loads it when a task matches its description.
How do I install Sandbox PDF in Codex?
Run `npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a codex`. Or copy the skill folder (packages/sandbox-packs/sandbox-pdf in nodetool-ai/nodetool) into .agents/skills/sandbox-pdf in your project. Codex loads it when a task matches its description.
Can I use Sandbox PDF in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nodetool-ai/nodetool --skill sandbox-pdf -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sandbox-pdf, .gemini/skills/sandbox-pdf, .github/skills/sandbox-pdf and .opencode/skills/sandbox-pdf in your project.
What does Sandbox PDF need to run?
SKILL.md names no scripts, command-line tools or credentials: Sandbox PDF is instructions for the agent only.
Does Sandbox PDF access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Sandbox PDF safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Sandbox PDF use?
Sandbox PDF is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Sandbox PDF use?
About 423 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Sandbox PDF?
Skills that share tags, products or a category with Sandbox PDF: Markitdown (ImCa0/just-laws, 781 stars), Gzh Design (isjiamu/gzh-design-skill, 4k stars), GenOffice Document CLI (genspark-ai/genoffice, 9.2k stars) and Harness Book Best Practice (wquguru/harness-books, 3.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Sandbox PDF?
nodetool-ai (a GitHub organization) maintains it in nodetool-ai/nodetool, which has 560 GitHub stars. The repository holds 127 skills in this directory. The repository was last updated on October 10, 2026.
Source: nodetool-ai/nodetool on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.