bpx-package

bpx-package is a skill for Claude Code from wilddogjp/openbpx. It costs 22 tokens per session (595 once invoked), scanned A, original, Apache-2.0.

A command for inspecting package-level information in Unreal Engine .uasset files, such as versions, flags, dependencies, indexes, and named sections. It can also change supported package flags.

In plain words
What is it for?
Use it to inspect package metadata, custom versions, forward or reverse dependencies, resolved indexes, or a specific section, and to update supported flags.
Why use it?
It provides focused views into package structure and dependency relationships without opening each binary file manually. Changes should be previewed with a dry run and can use a backup.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Not installable on its own: it reads a path above its own folder, which only exists inside its repository. The line is **PREREQUISITE:** Read [bpx-shared](../bpx-shared/SKILL.md)..

Part of the openbpx plugin — 26 skills shipped together

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add wilddogjp/openbpx
Claude Code
/plugin install openbpx

Made for: Claude Code.

Or install openbpx, the plugin that ships this one along with the rest of its 26 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 bpx-package

README.md
[![agentmods](https://agentmods.dev/badge/skills/wilddogjp/openbpx/bpx-package.svg)](https://agentmods.dev/skills/wilddogjp/openbpx/bpx-package)
Your own site
<a href="https://agentmods.dev/skills/wilddogjp/openbpx/bpx-package"><img src="https://agentmods.dev/badge/skills/wilddogjp/openbpx/bpx-package.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 595 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 5.1 $0.00022 $0.00595
Opus 5 $0.00011 $0.00298
Sonnet 5 $0.00004 $0.00119
Haiku 4.5 $0.00002 $0.00060

Measured 6d ago against content hash b9b2bea4da14, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

bpx-package 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 6d 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/openbpx/skills/bpx-package/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

package

PREREQUISITE: Read bpx-shared.

Usage

bpx package meta <file.uasset>
bpx package custom-versions <file.uasset>
bpx package depends <file.uasset> [--reverse]
bpx package resolve-index <file.uasset> --index <i>
bpx package section <file.uasset> --name <section>
bpx package set-flags <file.uasset> --flags <enum-or-raw> [--dry-run] [--backup]

Behavior

  • meta: shows package GUID/flags/version/offset summary.
  • custom-versions: lists custom version GUID/version pairs.
  • depends: decodes DependsMap entries.
  • depends --reverse: adds reverse dependency view (who references each export).
  • resolve-index: classifies and resolves signed FPackageIndex.
  • section: reads one raw package section by --name.
  • set-flags: rewrites package flags within supported safe scope.
  • set-flags blocks PKG_FilterEditorOnly and PKG_UnversionedProperties toggles.

[!CAUTION] This command includes write-capable operations. Confirm intent and run --dry-run first.

Command Matrix

Command Use when Notable defaults
meta shows package GUID/flags/version/offset summary. Check bpx help for exact required flags.
custom-versions lists custom version GUID/version pairs. Check bpx help for exact required flags.
depends decodes DependsMap entries. Check bpx help for exact required flags.
resolve-index classifies and resolves signed FPackageIndex. Check bpx help for exact required flags.
section reads one raw package section by --name. Check bpx help for exact required flags.
set-flags rewrites package flags within supported safe scope. Run --dry-run first and use --backup for real writes.

Code-Aligned Caveats

  • set-flags blocks unsupported/safety-critical toggles by design.
  • resolve-index is the safest way to interpret signed FPackageIndex in automation flows.

High-Signal Examples

bpx package meta ./Sample.uasset
bpx package custom-versions ./Sample.uasset
bpx package depends ./Sample.uasset [--reverse]
bpx package resolve-index ./Sample.uasset --index 1

Read the full file on GitHub · 59 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. 6d ago First seen · 59 lines · 22 tokens per session scan A b9b2bea4da14

Subscribe to this mod's changes

bpx-package is a skill published in the GitHub repository wilddogjp/openbpx (99 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 22 tokens to every session and 595 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 2026-08-30.

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