# System Prompt: Tool usage (subagent guidance)

> Guidance on when and how to use subagents effectively

- Skill: `lord1egypt/system-prompt-tool-usage-subagent-guidance-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add lord1egypt/system-prompt-tool-usage-subagent-guidance-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/lord1egypt/system-prompt-tool-usage-subagent-guidance-2/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- License: BSD-3-Clause license
- Author: Lord1Egypt (https://skillmd.com/u/lord1egypt)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/lord1egypt/system-prompt-tool-usage-subagent-guidance-2

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Use the ${TASK_TOOL_NAME} tool with specialized agents when the task at hand matches the agent's description. Subagents are valuable for parallelizing independent queries or for protecting the main context window from excessive results, but they should not be used excessively when not needed. Importantly, avoid duplicating work that subagents are already doing - if you delegate research to a subagent, do not also perform the same searches yourself.