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Loop Goal Engineering

Category: General  ·  Sub-category: ai-tooling  ·  Last updated:
ai:agent
This skill should be used when the user wants to author agentic loops or goal/completion conditions — "write a loop prompt", "loop engineering", "set up a ralph loop", "run Claude overnight", "write a /goal condition", "goal mode", "goal engineering", "stop condition for my agent", "completion criteria", "definition of done for the agent", "long-horizon task setup", "keep the agent working until", "make Codex run until tests pass", "PLANS.md", "harness for a long run", "my agent stops too early", "my agent never finishes", or wants Claude Code /loop, /goal, Stop hooks, or Codex Goal Mode set up well. Covers loop prompt authoring, goal condition design, the four-file long-horizon scaffold, and anti-reward-hacking hardening. For ordinary single-shot prompts, use prompt-engineering instead.
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From the source SKILL.md

Author the artifacts that drive autonomous agent runs: loop prompts (re-run cold each iteration until a backlog is done), goal conditions (machine- or evaluator-checkable completion criteria), and the long-horizon file scaffold that carries state between iterations.

What this skill does

Loop Goal Engineering is a community-contributed Claude Code skill in the ai-tooling sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/loop-goal-engineering/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Loop Goal Engineering Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/loop-goal-engineering
curl -L https://claudskills.com/skills/loop-goal-engineering/SKILL.md \
  -o ~/.claude/skills/loop-goal-engineering/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/loop-goal-engineering/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/loop-goal-engineering/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\loop-goal-engineering\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Loop Goal Engineering Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/loop-goal-engineering/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Loop Goal Engineering skill do?
This skill should be used when the user wants to author agentic loops or goal/completion conditions — "write a loop prompt", "loop engineering", "set up a ralph loop", "run Claude overnight", "write a /goal condition", "goal mode", "goal engineering", "stop condition for my agent", "completion criteria", "definition of done for the agent", "long-horizon task setup", "keep the agent working until", "make Codex run until tests pass", "PLANS.md", "harness for a long run", "my agent stops too early", "my agent never finishes", or wants Claude Code /loop, /goal, Stop hooks, or Codex Goal Mode set up well. Covers loop prompt authoring, goal condition design, the four-file long-horizon scaffold, and anti-reward-hacking hardening. For ordinary single-shot prompts, use prompt-engineering instead.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Loop Goal Engineering skill?
Use Loop Goal Engineering when your Claude Code task falls under the General category — specifically in the ai tooling area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Loop Goal Engineering" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Loop Goal Engineering skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Loop Goal Engineering is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
RadOrigin-LLC. (2026). Loop Goal Engineering [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/loop-goal-engineering/
BibTeX
@misc{loop-goal-engineering-2026,
  author    = {RadOrigin-LLC},
  title     = {Loop Goal Engineering [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/loop-goal-engineering/}
}

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