Build PluginSAFE
Browser automation clicks buttons. OpenTabs calls APIs.
Overview
Browser automation clicks buttons. OpenTabs calls APIs.
6aabe8c5aaf2OBSERVED · 2026-10-13Install
Commands as the repository documents them. They are shown, not run.
git clone https://github.com/opentabs-dev/opentabs.git
npm install
npm install
Host compatibility
What the documentation claims. We have not run a compatibility test.
| Host | Status | Notes |
|---|---|---|
| codex | mentioned | |
| cursor | mentioned |
What it tells the agent
The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.
--- name: build-plugin description: 'Complete plugin development workflow: build, test, icon, troubleshoot, and setup. Use when the user wants to build a plugin, create a plugin, troubleshoot issues, add icons, or install/configure plugins. Triggers on: build plugin, create plugin, develop plugin, new plugin, plugin icon, troubleshoot, debug, setup plugin, install plugin.' --- **IMPORTANT: This file is a stub. The actual skill content is maintained in `__SKILL__.md` in this same directory.** Before proceeding, you MUST read the file `.Codex/skills/build-plugin/__SKILL__.md` for the latest skill instructions. The content is kept separate so that updates to the skill are always picked up fresh, even if this stub was cached at the start of a session.
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | NA |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- pinned
- Secrets in source
- none-found
Findings (3)
curl -s -D - -X POST http://127.0.0.1:$PORT/mcp \
curl -s -X POST http://127.0.0.1:$PORT/mcp \
48. **CORS `Access-Control-Allow-Origin: *` blocks authenticated requests.** When a site's API returns `Access-Control-Allow-Origin: *` (wildcard), the browser refuses to send cookies with `credential
Gates applied: no_behavioural_pass.
6aabe8c5aaf2full audit observations/trust-audit/skill/opentabs-dev__build-plugin.json · Report an issue / request a re-scanAudit history
Every audit this skill has had.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-13 | 6aabe8c5aaf2 | SAFE | B | 89 | first audit |
Questions
What does the Build Plugin skill do?
Browser automation clicks buttons. OpenTabs calls APIs.
Is Build Plugin safe to install?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.
What can Build Plugin access on my machine?
The audit observed no filesystem, network or shell use at all in its source.
Which assistants does Build Plugin work with?
Its documentation mentions codex and cursor. That is what the text claims, not a compatibility test we ran.
How current is this page?
The grade is for one exact copy of the source (6aabe8c5aaf2), read on 2026-10-13. The repository is watched, and a new audit runs when it changes — this is the first audit.