Atlas / Skills / nousresearch / Blackbox

BlackboxSAFE

skills/nousresearch/blackbox

The agent that grows with you

Verdict
SAFE
Grade
B
Trust score
89 /100
Version
1.0.1
Hosts
2 documented
License
MIT
Stars
247,828
01

Overview

The agent that grows with you

Read from source at commit 1e09e6ec6721OBSERVED · 2026-09-22
02

Host compatibility

What the documentation claims. We have not run a compatibility test.

HostStatusNotes
codexmentioned
gemini-climentioned
03

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: blackbox
description: Delegate coding tasks to the Blackbox AI multi-model CLI.
version: 1.0.1
author: Hermes Agent (Nous Research)
license: MIT
platforms: [linux, macos, windows]
metadata:
  hermes:
    tags: [Coding-Agent, Blackbox, Multi-Agent, Judge, Multi-Model]
    related_skills: [claude-code, codex, hermes-agent]
---

# Blackbox CLI

Delegate coding tasks to [Blackbox AI](https://www.blackbox.ai/) via the Hermes terminal. Blackbox is a multi-model coding agent CLI that dispatches tasks to multiple LLMs (Claude, Codex, Gemini, Blackbox Pro) and uses a judge to select the best implementation.

The CLI (npm `@blackbox_ai/blackbox-cli`, binary `blackbox`) is a TypeScript coding agent (forked from Gemini CLI) and supports interactive sessions, non-interactive one-shots, checkpointing, MCP, and vision model switching.

## Prerequisites

- Node.js 20+ installed
- Blackbox CLI installed: `npm install -g @blackbox_ai/blackbox-cli` (binary: `blackbox`)
- API key from [app.blackbox.ai/dashboard](https://app.blackbox.ai/dashboard)
- Configured: run `blackbox configure` and enter your API key
- Use `pty=true` in terminal calls — Blackbox CLI is an interactive terminal app

## One-Shot Tasks

```
terminal(command="blackbox --prompt 'Add JWT authentication with refresh tokens to the Express API'", workdir="/path/to/project", pty=true)
```

For quick scratch work:
```
terminal(command="cd $(mktemp -d) && git init && blackbox --prompt 'Build a REST API for todos with SQLite'", pty=true)
```

## Background Mode (Long Tasks)

For tasks that take minutes, use background mode so you can monitor progress:

```
# Start in background with PTY
terminal(command="blackbox --prompt 'Refactor the auth module to use OAuth 2.0'", workdir="~/project", background=true, pty=true)
# Returns session_id

# Monitor progress
process(action="poll", session_id="<id>")
process(action="log", session_id="<id>")

# Send input if Blackbox asks a question
process(action="submit", session_id="<id>", data="yes")

# Kill if needed
process(action="kill", session_id="<id>")
```

## Checkpoints & Resume

Blackbox CLI has built-in checkpoint support for pausing and resuming tasks:

```
# After a task completes, Blackbox shows a checkpoint tag
# Resume with a follow-up task:
terminal(command="blackbox --resume-checkpoint 'task-abc123-2026-03-06' --prompt 'Now add rate limiting to the endpoints'", workdir="~/project", pty=true)
```

## Session Commands

During an interactive session, use these commands:

| Command | Effect |
|---------|--------|
| `/compress` | Shrink conversation history to save tokens |
| `/clear` | Wipe history and start fresh |
| `/stats` | View current token usage |
| `Ctrl+C` | Cancel current operation |

## PR Reviews

Clone to a temp directory to avoid modifying the working tree:

```
terminal(command="REVIEW=$(mktemp -d) && git clone https://github.com/user/repo.git $REVIEW && cd $REVIEW && gh pr checkout 42 && blackbox --prompt 'Review this PR against main. Check for bugs, security issues, and code quality.'", pty=true)
```

## Parallel Work

Spawn multiple Blackbox instances for independent tasks:

```
terminal(command="blackbox --prompt 'Fix the login bug'", workdir="~/.hermes/cache/scratch/issue-1", background=true, pty=true)
terminal(command="blackbox --prompt 'Add unit tests for auth'", workdir="~/.hermes/cache/scratch/issue-2", background=true, pty=true)

# Monitor all
process(action="list")
```

## Multi-Model Mode

Blackbox's unique feature is running the same task through multiple models and judging the results. Configure which models to use via `blackbox configure` — select multiple providers to enable the Chairman/judge workflow where the CLI evaluates outputs from different models and picks the best one.

## Key Flags

| Flag | Effect |
|------|--------|
| `--prompt "task"` (`-p`) | Non-interactive one-shot execution |
| `--resume-checkpoint "tag"` | Resume from a saved checkpoint |
| `--yolo` (`-y`) | Auto-approve all actions and model switches |
| `--vlm-switch-mode <mode>` | Image-handling: `once`, `session`, or `persist` |
| `-c, --checkpointing` | Enable checkpointing of file edits |
| `blackbox configure` | Change settings, providers, models |
| `blackbox update` | Update the CLI to the latest version |
| `blackbox mcp` | Manage MCP servers |
| `blackbox extensions` | Manage CLI extensions |
| `blackbox voice <action>` / `blackbox shortcut` | Configure voice input / the `b` shortcut |

## Vision Support

Blackbox automatically detects images in input and can switch to multimodal analysis. VLM modes:
- `"once"` — Switch model for current query only
- `"session"` — Switch for entire session
- `"persist"` — Stay on current model (no switch)

## Token Limits

Control token usage via `.blackboxcli/settings.json`:
```json
{
  "sessionTokenLimit": 32000
}
```

## Rules

1. **Always use `pty=true`** — Blackbox CLI is an interactive terminal app and will hang without a PTY
2. **Use `workdir`** — keep the agent focused on the right directory
3. **Background for long tasks** — use `background=true` and monitor with `process` tool
4. **Don't interfere** — monitor with `poll`/`log`, don't kill sessions because they're slow
5. **Report results** — after completion, check what changed and summarize for the user
6. **Credits cost money** — Blackbox uses a credit-based system; multi-model mode consumes credits faster
7. **Check prerequisites** — verify `blackbox` CLI is installed before attempting delegation
04

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.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeNA
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (0)

No findings outside the package's declared scope.

Gates applied: no_behavioural_pass.

Audited 2026-09-22 · audit v0.4.1 · source sha 1e09e6ec6721full audit observations/trust-audit/skill/nousresearch__blackbox.json · Report an issue / request a re-scan
05

Audit history

Every audit this skill has had.

DateSourceVerdictGradeScoreChange
2026-09-221e09e6ec6721SAFEB89first audit
06

Questions

What does the Blackbox skill do?

The agent that grows with you

Is Blackbox 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 Blackbox access on my machine?

The audit observed no filesystem, network or shell use at all in its source.

What do I need installed to use Blackbox?

Its own instructions reference blackbox. Dependencies are pinned to exact versions.

Which assistants does Blackbox work with?

Its documentation mentions codex and gemini-cli. 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 (1e09e6ec6721), read on 2026-09-22. The repository is watched, and a new audit runs when it changes — this is the first audit.

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