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.
/plugin marketplace add existential-birds/beaglenpx agentmods add plugins/existential-birds/beagle/marketplacegit clone --depth 1 https://github.com/existential-birds/beagleGrade A, and why
existential-birds 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "existential-birds",
"owner": {
"name": "Existential Birds, LLC",
"email": "[email protected]"
},
"metadata": {
"description": "Framework-aware code review skills and workflows for modern development",
"version": "4.4.0"
},
"plugins": [
{
"name": "beagle-core",
"source": "./plugins/beagle-core",
"description": "Shared code review workflows, verification protocol, git commands, feedback handling, and skill tooling",
"category": "workflow",
"tags": [
"code-review",
"verification",
"git",
"feedback",
"skills",
"meta",
"builder"
]
},
{
"name": "beagle-python",
"source": "./plugins/beagle-python",
"description": "Python, FastAPI, SQLAlchemy, PostgreSQL, and pytest code review",
"category": "backend",
"tags": [
"python",
"fastapi",
"sqlalchemy",
"postgres",
"pytest",
"code-review"
]
},
{
"name": "beagle-go",
"source": "./plugins/beagle-go",
"description": "Go, BubbleTea TUI, Wish SSH, and Prometheus code review",
"category": "backend",
"tags": [
"go",
"bubbletea",
"wish",
"prometheus",
"tui",
"code-review"
]
},
{
"name": "beagle-elixir",
"source": "./plugins/beagle-elixir",
"description": "Elixir, Phoenix, LiveView, and ExUnit code review",
"category": "backend",
"tags": [
"elixir",
"phoenix",
"liveview",
"exunit",
"code-review"
]
},
{
"name": "beagle-ios",
"source": "./plugins/beagle-ios",
"description": "Swift, SwiftUI, SwiftData, and iOS framework code review",
"category": "mobile",
"tags": [
"swift",
"swiftui",
"ios",
"healthkit",
"cloudkit",
"widgetkit",
"code-review"
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.
- 2d ago First seen · 158 lines scan A 5a25d9b8324c
existential-birds is a plugin published in the GitHub repository existential-birds/beagle (79 stars, last pushed 23d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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