Is the Agent Prompt Engineering skill free?

Yes. The skill itself is free from hesreallyhim/really-claude-code. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Agent Prompt Engineering SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install Agent Prompt Engineering?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Agent Prompt Engineering with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Agent Prompt Engineering

A five-part checklist (role, paths, deliverables, constraints, comms) for writing sub-agent prompts that need zero follow-up.

by hesreallyhim · hesreallyhim/really-claude-code

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.6/10
Tested: Jul 15, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Jul 18, 2026 · 868e5ff

Drafted a spawn prompt for a 3-agent marketing-site redesign both ways: the baseline copy-agent prompt was one vague sentence ('improve the copy'), the skill-directed version had absolute file paths to read, two deliverables with exact output paths and acceptance criteria, a CRITICAL constraint not to invent pricing figures, and a reporting protocol -- exactly the gap the skill claims to close.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What Agent Prompt Engineering does

Reference guide for writing self-contained prompts when spawning sub-agents via the Task tool: role/scope, exhaustive absolute file paths, deliverables with exact output paths and acceptance criteria, labeled CRITICAL constraints, and a communication protocol. Triggers when delegating work to agents, designing multi-agent workflows, or when spawned agents keep returning underspecified results.

How to install Agent Prompt Engineering

git clone https://github.com/hesreallyhim/really-claude-code
mkdir -p ~/.claude/skills
cp -r really-claude-code/agent-autonomy/autonomous-team-coordination/skills/agent-prompt-engineering ~/.claude/skills/agent-prompt-engineering

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Agent Prompt Engineering

/agent-prompt-engineering A five-part checklist (role, paths, deliverables, constraints, comms) for writing sub-agent prompts that need zero follow-up.

It also activates on plain-language prompts like these:

Help me write a self-contained prompt to spawn a sub-agent.
I'm designing a multi-agent workflow, review my delegation prompts.
My spawned agents keep returning vague results, fix my prompts.

Frequently asked questions

Is the Agent Prompt Engineering skill free?: Yes. The skill itself is free from hesreallyhim/really-claude-code. SkillProof publishes the install command and an independent test verdict at no cost.
Does Agent Prompt Engineering work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Tested · Works. Drafted a spawn prompt for a 3-agent marketing-site redesign both ways: the baseline copy-agent prompt was one vague sentence ('improve the copy'), the skill-directed version had absolute file paths to read, two deliverables with exact output paths and acceptance criteria, a CRITICAL constraint not to invent pricing figures, and a reporting protocol -- exactly the gap the skill claims to close.
What is the Agent Prompt Engineering SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install Agent Prompt Engineering?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Agent Prompt Engineering with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.