texlive-runtime-installer

texlive-runtime-installer is a skill for Claude Code, Codex from fanfan-de/anybox. It costs 40 tokens per session (317 once invoked), scanned A, original, MIT.

A diagnostic tool that checks whether Tectonic, TeX Live, MacTeX, and common LaTeX commands are installed and working.

In plain words
What is it for?
Use it to check LaTeX readiness before compiling documents or deciding whether a full TeX Live runtime is needed.
Why use it?
It shows which LaTeX tools are available or missing and can run a small test document, helping explain why compilation is failing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 scripts/install_texlive.py.

Good fit Use it to check LaTeX readiness before compiling documents or deciding whether a full TeX Live runtime is needed.

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Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/fanfan-de/anybox
agentmods
npx agentmods add skills/fanfan-de/anybox/texlive-runtime-installer

Made for: Claude Code, Codex.

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.

agentmods badge for texlive-runtime-installer

README.md
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Your own site
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Your own site · 80×15
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Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 317 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.00317
Opus 5 $0.00020 $0.00159
Sonnet 5 $0.00008 $0.00063
Haiku 4.5 $0.00004 $0.00032

Measured 9d ago against content hash c88de54e8b13, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

texlive-runtime-installer 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 9d 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.

plugins/Anybox-Plugins/latex/skills/texlive-runtime-installer/SKILL.md · 47 lines

What it actually says

TeX Live Runtime Installer

Use this skill when the user asks to install or repair LaTeX support for Codex.

Default behavior is detect-only:

python3 scripts/install_texlive.py

The script exits without installing when it detects an existing TeX Live or MacTeX installation.

Full Managed Install

Only run the full install after the user explicitly confirms they want Codex to download and run the TeX Live installer. The install is large and can take a long time.

python3 scripts/install_texlive.py --install-managed-full

The managed runtime is installed under:

~/.cache/codex-runtimes/codex-texlive/full

The installer does not use sudo, does not write /Library/TeX, does not write /usr/local/texlive, and does not modify shell startup files.

Force Mode

If an existing TeX installation is partial or broken and the user still wants a separate managed runtime:

python3 scripts/install_texlive.py --install-managed-full --force-managed

Do not use force mode unless the user explicitly asks for it.

Safety

Running --install-managed-full downloads and runs the upstream TeX Live installer. Ask for confirmation immediately before running that command.

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.

  1. 9d ago First seen · 47 lines · 40 tokens per session scan A c88de54e8b13

Subscribe to this mod's changes

texlive-runtime-installer is a skill published in the GitHub repository fanfan-de/anybox (57 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 317 once invoked, about $0.0002 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.

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