Agent skill

Run Long Running Processes In Tmux

by sandgardenhq in sandgardenhq/sgai

Guide for using tmux to manage detached sessions for long-running processes, including lifecycle management, cleanup, startup, verification, and output capture; When you need to run servers or…

Custom licenceAuto-check passed

Install Run Long Running Processes In Tmux

skills CLI
$ npx skills add sandgardenhq/sgai --skill run-long-running-processes-in-tmux -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install sandgardenhq/sgai run-long-running-processes-in-tmux --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/sandgardenhq/sgai.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cmd/sgai/skel/.sgai/skills/run-long-running-processes-in-tmux .claude/skills/run-long-running-processes-in-tmux && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
run-long-running-processes-in-tmux
GitHub stars
137
Token cost
~1.4k tokens
SKILL.md length
384 words
Files
1
Skills in repo
53
Repo updated
First seen
Licence
Custom licence

At a glance

Guide for using tmux to manage detached sessions for long-running processes, including lifecycle management, cleanup, startup, verification, and output capture; When you need to run servers or…

  • Works in 6 steps: Cleanup existing sessions: tmux… → Start detached session: tmux new-session… → Verify startup: tmux capture-pane -t… → …
  • SKILL.md covers Overview, When to Use, Core Pattern and Quick Reference, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Run Long Running Processes In Tmux is an agent skill from sandgardenhq/sgai. Guide for using tmux to manage detached sessions for long-running processes, including lifecycle management, cleanup, startup, verification, and output capture; When you need to run servers or long-running commands in the background, send commands to them, capture output, handle TTY requirements, or manage session lifecycle with error handling

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with tmux. The repository describes itself as: Sandgarden AI Software Factory.

Example prompts

  • “/run-long-running-processes-in-tmux”

Requirements

  • Python 3

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Cleanup existing sessions: tmux kill-session -t name 2>/dev/null || true
  2. Start detached session: tmux new-session -d -s name "command"
  3. Verify startup: tmux capture-pane -t name -S - -p | grep -q "expected_output"
  4. Interact: tmux send-keys -t name "command" C-m
  5. Capture: tmux capture-pane -t name -S - -p > file
  6. Monitor: tmux attach -t name (when needed)

What it can do on your machine

Read from SKILL.md and the folder at commit 9efbb7b. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Run Long Running Processes In Tmux loads about 1.4k tokens when it runs. Until then it costs about 95 tokens; SKILL.md has 384 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~95
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 384 words (~1,368 tokens).

“Tmux allows running processes in detached sessions, providing pseudo-terminals for processes requiring TTY, and tools to interact with them without attaching. Enhanced with complete session lifecycle management including cleanup, startup verification, and output capture.”

— opening of SKILL.md by sandgardenhq, Custom licence
name
run-long-running-processes-in-tmux

Read the full SKILL.md on GitHub

Files

Just SKILL.md in cmd/sgai/skel/.sgai/skills/run-long-running-processes-in-tmux of sandgardenhq/sgai.

Open the folder on GitHubat commit 9efbb7b

Compare with similar skills

Run Long Running Processes In Tmux next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Run Long Running Processes In Tmux compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Run Long Running Processes In Tmux this skillsandgardenhq/sgai137—~1.4kAutomated safety check: PassCustom licence
1passwordtrpc-group/trpc-agent-go1.9k14 repos~656Automated safety check: PassApache-2.0
CodeGraph Agent Evalcolbymchenry/codegraph74k—~950Automated safety check: PassMIT
Tmuxtrpc-group/trpc-agent-go1.9k23 repos~868Automated safety check: PassApache-2.0
CodexBar Live QAsteipete/CodexBar22k—~1.2kAutomated safety check: PassMIT
Tmuxopenclaw/openclaw392k1 repos~640Automated safety check: PassMIT

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Works with

Questions about Run Long Running Processes In Tmux

What does Run Long Running Processes In Tmux do?

Guide for using tmux to manage detached sessions for long-running processes, including lifecycle management, cleanup, startup, verification, and output capture; When you need to run servers or…. Run Long Running Processes In Tmux is an agent skill from sandgardenhq/sgai.

How do I install Run Long Running Processes In Tmux in Claude Code?

Run `npx skills add sandgardenhq/sgai --skill run-long-running-processes-in-tmux -a claude-code`. Or copy the skill folder (cmd/sgai/skel/.sgai/skills/run-long-running-processes-in-tmux in sandgardenhq/sgai) into .claude/skills/run-long-running-processes-in-tmux in your project. Claude Code loads it when a task matches its description.

How do I install Run Long Running Processes In Tmux in Codex?

Run `npx skills add sandgardenhq/sgai --skill run-long-running-processes-in-tmux -a codex`. Or copy the skill folder (cmd/sgai/skel/.sgai/skills/run-long-running-processes-in-tmux in sandgardenhq/sgai) into .agents/skills/run-long-running-processes-in-tmux in your project. Codex loads it when a task matches its description.

Can I use Run Long Running Processes In Tmux in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add sandgardenhq/sgai --skill run-long-running-processes-in-tmux -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/run-long-running-processes-in-tmux, .gemini/skills/run-long-running-processes-in-tmux, .github/skills/run-long-running-processes-in-tmux and .opencode/skills/run-long-running-processes-in-tmux in your project.

What does Run Long Running Processes In Tmux need to run?

SKILL.md names no scripts, command-line tools or credentials: Run Long Running Processes In Tmux is instructions for the agent only. Our summary lists: Python 3.

Does Run Long Running Processes In Tmux access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Run Long Running Processes In Tmux safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Run Long Running Processes In Tmux use?

Run Long Running Processes In Tmux has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Run Long Running Processes In Tmux use?

About 1.4k tokens (SKILL.md is roughly 5.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Run Long Running Processes In Tmux?

Skills that share tags, products or a category with Run Long Running Processes In Tmux: 1password (trpc-group/trpc-agent-go, 1.9k stars), CodeGraph Agent Eval (colbymchenry/codegraph, 74k stars), Tmux (trpc-group/trpc-agent-go, 1.9k stars) and CodexBar Live QA (steipete/CodexBar, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Run Long Running Processes In Tmux?

sandgardenhq (a GitHub organization) maintains it in sandgardenhq/sgai, which has 137 GitHub stars. The repository holds 53 skills in this directory. The repository was last updated on September 21, 2026.

Source: sandgardenhq/sgai on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.