A tool for controlling tmux sessions remotely by sending keystrokes and reading terminal output. Tmux is a terminal multiplexer that keeps multiple command-line sessions running in one window or after disconnecting.

Use it with Python, gdb, ipdb, psql, MySQL, Node, and interactive Git commands while debugging, testing, or managing terminal sessions.

It lets an agent operate interactive terminal programs without requiring every command to be non-interactive.

tmux — Skill for Claude Code and Codex by dashed/claude-marketplace

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 dashed/claude-marketplace --skill tmux

Clone the repo

git clone --depth 1 https://github.com/dashed/claude-marketplace

Made for: Claude Code, Codex.

Its marketplace also offers this one on its own, as the plugin tmux — /plugin install tmux after adding the marketplace above.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dashed/claude-marketplace/tmux/github.svg)](https://agentmods.dev/skills/dashed/claude-marketplace/tmux)

Your own site

<a href="https://agentmods.dev/skills/dashed/claude-marketplace/tmux"><img src="https://agentmods.dev/badge/skills/dashed/claude-marketplace/tmux/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dashed/claude-marketplace/tmux"><img src="https://agentmods.dev/badge/skills/dashed/claude-marketplace/tmux.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 6,126 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 unknown No closer match found 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.

Model	Per session	Once invoked
Fable 5.1	$0.00099	$0.06126
Opus 5.5	$0.00040	$0.02450
Sonnet 5.5	$0.00020	$0.01225
Haiku 4.5	$0.00010	$0.00613

Measured 2mo ago against content hash 65c16be55cee, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tmux 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 2mo 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.

plugins/tmux/skills/tmux/SKILL.md · 632 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

3 files 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.

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.

2mo ago First seen · 632 lines · 99 tokens per session scan A 65c16be55cee

Subscribe to this mod's changes

tmux is a skill published in the GitHub repository dashed/claude-marketplace (25 stars, last pushed 16d ago), with no licence file. It adds 99 tokens to every session and 6,126 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-03.

Debugging Productivity

tmux next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
tmuxdashed/claude-marketplace	Skill	25	16d ago	none	A	99	Claude Code, Codex
material-ui-nextjsmui/material-ui	Skill	99k	yesterday	MIT	A	76	Claude Code, Codex
Developmentdanielmiessler/LifeOS	Skill	20k	yesterday	MIT	A	0	Claude Code, Codex
LifeOSHooksdanielmiessler/LifeOS	Skill	20k	yesterday	MIT	A	114	Claude Code, Codex
Hermesdanielmiessler/LifeOS	Skill	20k	yesterday	MIT	A	0	Claude Code, Codex
RootCauseAnalysisdanielmiessler/LifeOS	Skill	20k	yesterday	MIT	A	93	Claude Code, Codex
Vitalsdanielmiessler/LifeOS	Skill	20k	yesterday	MIT	B	129	Claude Code, Codex