agent-manager-skill

agent-manager-skill is a skill for Claude Code, Codex from Ghosteken/agent-harness. It costs 28 tokens per session (330 once invoked), scanned A, a copy of agent-manager-skill, MIT.

A skill for running several local command-line AI agents in separate tmux sessions. tmux is a terminal tool that keeps programs running in manageable sessions.

In plain words
What is it for?
Starting and stopping agents, assigning them tasks, following their logs, checking their setup, and scheduling recurring agent work.
Why use it?
It avoids having to start, stop, monitor, and coordinate each agent manually. It also supports scheduled work through cron, a system scheduler.

Skill for Claude CodeCodex

Part of the agent-harness plugin — 173 skills, 11 commands, 12 agents shipped together

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.

agentmods
npx agentmods add skills/ghosteken/agent-harness/agent-manager-skill
Any agent
npx skills add Ghosteken/agent-harness --skill agent-manager-skill
Clone the repo
git clone --depth 1 https://github.com/Ghosteken/agent-harness

Made for: Claude Code, Codex.

Or install agent-harness, the plugin that ships this one along with the rest of its 173 skills, 11 commands, 12 agents.

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 agent-manager-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/ghosteken/agent-harness/agent-manager-skill.svg)](https://agentmods.dev/skills/ghosteken/agent-harness/agent-manager-skill)
Your own site
<a href="https://agentmods.dev/skills/ghosteken/agent-harness/agent-manager-skill"><img src="https://agentmods.dev/badge/skills/ghosteken/agent-harness/agent-manager-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 330 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 95% 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 $0.00028 $0.00330
Opus 5 $0.00014 $0.00165
Sonnet 5 $0.00006 $0.00066
Haiku 4.5 $0.00003 $0.00033

Measured 5d ago against content hash 481780bb51db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

agent-manager-skill 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 5d 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

95% identical to agent-manager-skill — 2 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.

archive/skills-community/agent-manager-skill/SKILL.md · 48 lines

What it actually says

Agent Manager Skill

When to Use

Use this skill when you need to:

  • run multiple local CLI agents in parallel (separate tmux sessions)
  • start/stop agents and tail their logs
  • assign tasks to agents and monitor output
  • schedule recurring agent work (cron)

Prerequisites

Install agent-manager-skill in your workspace:

git clone https://github.com/fractalmind-ai/agent-manager-skill.git

Common commands

python3 agent-manager/scripts/main.py doctor
python3 agent-manager/scripts/main.py list
python3 agent-manager/scripts/main.py start EMP_0001
python3 agent-manager/scripts/main.py monitor EMP_0001 --follow
python3 agent-manager/scripts/main.py assign EMP_0002 <<'EOF'
Follow teams/fractalmind-ai-maintenance.md Workflow
EOF

Notes

  • Requires tmux and python3.
  • Agents are configured under an agents/ directory (see the repo for examples).

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
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. 5d ago First seen · 48 lines · 28 tokens per session scan A 481780bb51db

Subscribe to this mod's changes

agent-manager-skill is a skill published in the GitHub repository Ghosteken/agent-harness (2 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 330 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to agent-manager-skill, differing in 2 lines, and is treated as a copy.