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aggie-security

uStack

by aggie-security · GitHub ↗ · v0.1.0 · MIT-0
cross-platform ⚠ suspicious
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Install in OpenClaw
/install ustack
Description
Universal agent workspace compatibility and update engine. Track upstream agent frameworks (like gstack), analyze every change, classify portability, and gen...
Usage Guidance
uStack appears coherent: it clones/pulls Git repos and analyzes their contents, writes artifacts to .ustack/, and generates Markdown pages. Before installing or running: 1) be aware it requires Node >=20 and git (run in an environment with those installed); the registry metadata did not list these—that's an inconsistency. 2) Only import repositories you trust or run ustack in an isolated directory/container, since it will clone arbitrary repos and write files locally. 3) Review the generated .ustack content and manifests before using any adapted output in production. 4) Note there are minor code/quality issues (e.g., a missing fs import in one extractor) — these look like bugs, not malicious behavior. If you need stronger guarantees, run it in a sandboxed environment or inspect the cloned repo contents before further automated processing.
Capability Analysis
Type: OpenClaw Skill Name: ustack Version: 0.1.0 The ustack skill bundle provides a framework for tracking and analyzing external agent repositories but contains several critical shell injection vulnerabilities. Specifically, `src/lib/git.js` uses `execSync` to execute git commands (log, diff, show) with unsanitized variables such as commit SHAs and file paths. While these capabilities are consistent with the tool's stated purpose, the lack of input validation allows for potential arbitrary command execution if the underlying git metadata or user-supplied identifiers are manipulated. Additionally, the tool performs file system operations and clones external repositories (e.g., from github.com/garrytan/gstack) into a local `.ustack` directory without sufficient sanitization of the source content.
Capability Assessment
Purpose & Capability
The skill claims to import, diff/analyze, and publish updates from upstream agent repos and the code implements exactly that: git clone/pull, git diff/log, file inspection, IR extraction, and markdown generation. One mismatch: the package/README/SKILL.md document Node.js >=20 and Git as requirements, but the registry metadata lists no required binaries—so the metadata underreports required runtime tools.
Instruction Scope
Runtime instructions and code operate on user-provided Git repository URLs: cloning/pulling repos and reading/writing files under a local .ustack workspace. The tool runs git via child_process and reads many repository files to build reports. It does not request secrets or call external services beyond git network access to the supplied repo URL, nor does it execute arbitrary repo scripts. Because it clones arbitrary repos, run it in an isolated directory/container when importing untrusted repositories.
Install Mechanism
There is no install spec (instruction-only/install-from-source), package.json contains no external dependencies, and files are not fetched from unknown remote archives. The code expects Node.js and Git (package.json engines and SKILL.md), which is a conventional, low-risk setup. No remote install URL or extracted archives were found.
Credentials
No environment variables, credentials, or config paths are required. The code emits metadata that references service auth types (e.g., 'bearer-token') as IR metadata only; it does not ask for or store secrets. Requested environment access is proportional to the declared functionality.
Persistence & Privilege
always is false and the skill operates only within a .ustack directory under the current working directory. It writes manifests, snapshots, and run artifacts there but does not modify other skills or global agent settings. Autonomous invocation is allowed by default (disable-model-invocation: false) but this is the platform default and not combined with other red flags.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install ustack
  3. After installation, invoke the skill by name or use /ustack
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.0
Phase 1: upstream watcher, analyzer, publisher pipeline. Track gstack and other agent frameworks, analyze changes, classify portability, generate website-ready update pages.
Metadata
Slug ustack
Version 0.1.0
License MIT-0
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is uStack?

Universal agent workspace compatibility and update engine. Track upstream agent frameworks (like gstack), analyze every change, classify portability, and gen... It is an AI Agent Skill for Claude Code / OpenClaw, with 76 downloads so far.

How do I install uStack?

Run "/install ustack" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is uStack free?

Yes, uStack is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does uStack support?

uStack is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created uStack?

It is built and maintained by aggie-security (@aggie-security); the current version is v0.1.0.

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