Superpowers Lab is an experimental plugin that adds developing techniques and tools to Claude Code Superpowers. Its skills include detecting semantically duplicated functions in codebases and invoking MCP servers on demand through a command-line tool. The catalogue add-ons are the plugin's own skills.
Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add obra/superpowers-lab/plugin install superpowers-labWrote 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.
[](https://agentmods.dev/skills/obra/superpowers-lab/using-tmux-for-interactive-commands)<a href="https://agentmods.dev/skills/obra/superpowers-lab/using-tmux-for-interactive-commands"><img src="https://agentmods.dev/badge/skills/obra/superpowers-lab/using-tmux-for-interactive-commands.svg" alt="Measured on agentmods" height="20"></a>- Socket pass
- Snyk pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00056 | $0.01383 |
| Opus 5 | $0.00028 | $0.00691 |
| Sonnet 5 | $0.00011 | $0.00277 |
| Haiku 4.5 | $0.00006 | $0.00138 |
Grade A, and why
using-tmux-for-interactive-commands 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 8d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- using-tmux-for-interactive-commands — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Using tmux for Interactive Commands
Overview
Interactive CLI tools (vim, interactive git rebase, REPLs, etc.) cannot be controlled through standard bash because they require a real terminal. tmux provides detached sessions that can be controlled programmatically via send-keys and capture-pane.
When to Use
Use tmux when:
- Running vim, nano, or other text editors programmatically
- Controlling interactive REPLs (Python, Node, etc.)
- Handling interactive git commands (
git rebase -i,git add -p) - Working with full-screen terminal apps (htop, etc.)
- Commands that require terminal control codes or readline
Don't use for:
- Simple non-interactive commands (use regular Bash tool)
- Commands that accept input via stdin redirection
- One-shot commands that don't need interaction
Quick Reference
| Task | Command |
|---|---|
| Start session | tmux new-session -d -s <name> <command> |
| Send input | tmux send-keys -t <name> 'text' Enter |
| Capture output | tmux capture-pane -t <name> -p |
| Stop session | tmux kill-session -t <name> |
| List sessions | tmux list-sessions |
Core Pattern
Before (Won't Work)
# This hangs because vim expects interactive terminal
bash -c "vim file.txt"
After (Works)
# Create detached tmux session
tmux new-session -d -s edit_session vim file.txt
# Send commands (Enter, Escape are tmux key names)
tmux send-keys -t edit_session 'i' 'Hello World' Escape ':wq' Enter
# Capture what's on screen
tmux capture-pane -t edit_session -p
# Clean up
tmux kill-session -t edit_session
Implementation
Basic Workflow
- Create detached session with the interactive command
- Wait briefly for initialization (100-500ms depending on command)
- Send input using
send-keys(can send special keys like Enter, Escape) - Capture output using
capture-pane -pto see current screen state - Repeat steps 3-4 as needed
- Terminate session when done
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 8d ago First seen · 179 lines · 56 tokens per session scan A 51a3f28d4d16
using-tmux-for-interactive-commands is a skill published in the GitHub repository obra/superpowers-lab (423 stars, last pushed 3mo ago), licensed MIT. It adds 56 tokens to every session and 1,383 once invoked, about $0.0003 per session on Opus 5. 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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