Claude Code mod
blackbox
KOZMOS Blackbox: a flight recorder above the prompt. A live Gantt of the current turn: the main loop and each subagent on its own lane, every tool call a bar in its family color, model requests as ticks, a moving now cursor on an auto-scaling time axis; the last turn stays dimmed until the next. /blackbox toggles it.
Install
/plugin marketplace add ersinkoc/claude-mods
/plugin install blackbox@kozmosMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: reads mod state, persists state, draws
- Sees
- subagent spawns, every tool call
- Draws in
AbovePrompt- Hooks
session.startcommand.runturn.startturn.completeagent.spawnturn.steptool.callui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- ersinkoc/claude-mods
- Folder
mods/blackbox- Marketplace
kozmos- Author
- KOZMOS
- License
- MIT
- Last updated
- 20 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is blackbox?
KOZMOS Blackbox: a flight recorder above the prompt. A live Gantt of the current turn: the main loop and each subagent on its own lane, every tool call a bar in its family color, model requests as ticks, a moving now cursor on an auto-scaling time axis; the last turn stays dimmed until the next. /blackbox toggles it. It is a mod for Claude Code, from ersinkoc/claude-mods on GitHub.
What can the blackbox mod access?
Its widest reach is "reads" (reads mod state, persists state, draws). It sees subagent spawns, every tool call. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install blackbox?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add ersinkoc/claude-mods and then /plugin install blackbox@kozmos.
Is blackbox popular?
ersinkoc/claude-mods has 21 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 20 October 2026.
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