projectaria-tools

projectaria-tools is a skill for Claude Code, Codex from facebookresearch/projectaria-plugins. It costs 89 tokens per session (3,563 once invoked), scanned A, original, Apache-2.0.

A guide to Project Aria Tools, an open-source Python and C++ library for reading recordings from Aria glasses and working with their sensor data.

In plain words
What is it for?
Use it to read VRS files, access camera and sensor data, load eye-gaze, hand-tracking, and SLAM results, align data from multiple devices, and visualize it.
Why use it?
It points you to the correct APIs and source files for recordings, calibration, perception results, time alignment, and visualizations.

Skill for Claude CodeCodex

Part of the aria-ark plugin — 12 skills shipped together

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 skills/facebookresearch/projectaria-plugins/projectaria-tools
Any agent
npx skills add facebookresearch/projectaria-plugins --skill projectaria-tools
Clone the repo
git clone --depth 1 https://github.com/facebookresearch/projectaria-plugins

Made for: Claude Code, Codex.

Or install aria-ark, the plugin that ships this one along with the rest of its 12 skills.

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 projectaria-tools

README.md
[![agentmods](https://agentmods.dev/badge/skills/facebookresearch/projectaria-plugins/projectaria-tools.svg)](https://agentmods.dev/skills/facebookresearch/projectaria-plugins/projectaria-tools)
Your own site
<a href="https://agentmods.dev/skills/facebookresearch/projectaria-plugins/projectaria-tools"><img src="https://agentmods.dev/badge/skills/facebookresearch/projectaria-plugins/projectaria-tools.svg" alt="Measured on agentmods" height="20"></a>
Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,563 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.

ModelPer sessionOnce invoked
Fable 5 $0.00089 $0.03563
Opus 5 $0.00044 $0.01782
Sonnet 5 $0.00018 $0.00713
Haiku 4.5 $0.00009 $0.00356

Measured 4d ago against content hash 4f88aa78388f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

projectaria-tools 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 4d 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.

projectaria_ark_plugin/skills/projectaria-tools/SKILL.md · 283 lines

How it starts

The opening of the file, as written. The whole thing — 283 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ProjectAriaTools (PAT)

PAT is the foundational open-source library for accessing and processing data recorded by Project Aria glasses. It provides Python and C++ interfaces for loading VRS files, accessing calibration, processing sensor data, loading MPS results, and visualizing Aria data.

How to Use This Skill

This skill is a navigation map — it tells you where the key APIs and source files are, what the gotchas are, and where to find the truth. Never guess API names from this skill alone. Read the source file it points to before writing any API call.

  • For CLI flags, run --help instead of guessing from this skill.
  • For API details, read the relevant Python module or C++ pybind header.

Installation & Documentation

Key Source Paths

After cloning the repo, these are the source-of-truth files for API details:

What Path
C++ pybind: VrsDataProvider API core/python/VrsDataProviderPyBind.h
C++ pybind: SensorData accessors core/python/SensorDataPyBind.h
C++ pybind: Calibration core/python/DeviceCalibrationPyBind.h
C++ pybind: MPS data core/python/MpsPyBind.h
C++ pybind: SE3/Sophus core/python/sophus/
MPS types (eye gaze, hand, trajectory) core/mps/
TimeDomain enum core/data_provider/TimeTypes.h
Python package (pip-installed API) projectaria_tools/core/
Visualization tools projectaria_tools/tools/
Gen2 tutorials examples/Gen2/python_notebooks/

Read the full file on GitHub · 283 lines

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. 4d ago First seen · 283 lines · 89 tokens per session scan A 4f88aa78388f

Subscribe to this mod's changes

projectaria-tools is a skill published in the GitHub repository facebookresearch/projectaria-plugins (8 stars, last pushed 9d ago), licensed Apache-2.0. It adds 89 tokens to every session and 3,563 once invoked, about $0.0004 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 2026-08-31.

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