blackbox

blackbox is a skill for Claude Code, Codex from cyborg-garden/hermes-agent-mt. It costs 47 tokens per session (1,322 once invoked), scanned A, a copy of blackbox, MIT.

A command-line coding agent that sends a programming task to several AI models and uses a judging step to select an implementation. It can work interactively or handle a single task from a terminal.

In plain words
What is it for?
Adding features, building small applications, editing existing projects, and handling one-off coding tasks from the command line.
Why use it?
It provides another way to delegate coding work and compare results from multiple models. It requires the Blackbox CLI, Node.js 20 or newer, and a Blackbox AI API key.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for hermes-agent. Also seen: mentions Codex; built for hermes-agent; mentions Gemini CLI.

Good fit Adding features, building small applications, editing existing projects, and handling one-off coding tasks from the command line.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cyborg-garden/hermes-agent-mt/blackbox
Install

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.

Any agent
npx skills add cyborg-garden/hermes-agent-mt --skill blackbox
Clone the repo
git clone --depth 1 https://github.com/cyborg-garden/hermes-agent-mt

Made for: Claude Code, Codex.

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 blackbox

README.md
[![agentmods](https://agentmods.dev/badge/skills/cyborg-garden/hermes-agent-mt/blackbox/github.svg)](https://agentmods.dev/skills/cyborg-garden/hermes-agent-mt/blackbox)
Your own site
<a href="https://agentmods.dev/skills/cyborg-garden/hermes-agent-mt/blackbox"><img src="https://agentmods.dev/badge/skills/cyborg-garden/hermes-agent-mt/blackbox/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for blackbox

Your own site · 80×15
<a href="https://agentmods.dev/skills/cyborg-garden/hermes-agent-mt/blackbox"><img src="https://agentmods.dev/badge/skills/cyborg-garden/hermes-agent-mt/blackbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,322 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod 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 $0.00047 $0.01322
Opus 5 $0.00023 $0.00661
Sonnet 5 $0.00009 $0.00264
Haiku 4.5 $0.00005 $0.00132

Measured 9d ago against content hash fd66cd374872, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

blackbox 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 9d 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.

Origin

This is a copy

89% identical to blackbox — 9 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

optional-skills/autonomous-ai-agents/blackbox/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blackbox CLI

Delegate coding tasks to 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 is open-source (GPL-3.0, TypeScript, 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 @blackboxai/cli
  • Or install from source:
    git clone https://github.com/blackboxaicode/cli.git
    cd cli && npm install && npm install -g .
    
  • API key from 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)

Read the full file on GitHub · 145 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. 9d ago First seen · 145 lines · 47 tokens per session scan A fd66cd374872

Subscribe to this mod's changes

blackbox is a skill published in the GitHub repository cyborg-garden/hermes-agent-mt (13 stars, last pushed yesterday), licensed MIT. It adds 47 tokens to every session and 1,322 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to blackbox, differing in 9 lines, and is treated as a copy.