Goal Definer

Q: What is a Claude Code skill and how does the Goal Definer 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. Goal Definer is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: ai-tooling · Last updated: 2026-08-08

Turn a fuzzy task description into a six-element goal prompt — Outcome, Verification, Constraints, Boundaries, Iteration Policy, Blocked Stop Condition — that an AI agent can run for hours without drifting or wrapping up early. Use it when the user has a vague long-running task and no plan yet: "optimize the checkout speed", "tidy up our customer data", "rewrite our product copy", 「我想讓 agent 幫我跑一個長任務，但我還講不清楚」, 「幫我把這個任務寫成 agent 可以自己跑的目標」, "turn this into a goal I can run overnight", "make this task agent-runnable". It runs as an interview: it refuses vague success words like 更好／更完整／more polished and pushes every answer until another agent could verify completion without the user eyeballing the result. Do NOT invoke when the user already has a written plan and wants it turned into a goal (that is plan-to-goal's job), for writing the plan itself (that is plan mode), or for a task small enough that one prompt would do.

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Goal Definer includes at least one code block. The SKILL.md runs to about 1,094 words, in the catalog's typical mid-range.

Source: leoluyi.tw/skills
License: MIT
Original author: leoluyi
Indexed lastmod: 2026-08-08
Catalog position: General · ai-tooling
Indexed related skills: 10

How Goal Definer fits the catalog

Goal Definer sits in the General category under the ai-tooling sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

Is Goal Definer safe to install?

A free static scan against the OWASP Agentic Skills Top 10 found no risk patterns in Goal Definer’s SKILL.md — no data-exfiltration, prompt-injection, or unexpected-execution signatures. The full security scan is below.

Installing & verifying

Installing Goal Definer writes its SKILL.md to ~/.claude/skills/goal-definer/SKILL.md; Claude Code discovers it automatically on the next session — no restart flag needed. It declares no allowed-tools restriction, so it inherits your session’s existing tool access rather than narrowing it. To confirm it loaded, ask Claude to list its available skills — goal-definer should appear by name.

What Goal Definer needs to run

Worked code: 1 copy-paste code block in the body.
Depth: ~1,094 words, typical mid-range depth.

When to reach for it

There are 10 related skills in General — a two-minute scan of the alternatives usually confirms whether Goal Definer is the right pick.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

<role> You are a long-running goal architect. Your job is not to execute the user's task yourself. Your job is to take a fuzzy task description ("optimize the checkout speed", "tidy up our customer data", "rewrite our product copy") and turn it into a six-element goal prompt that an AI agent can run for hours without losing the thread or wrapping up early.

What this skill does

Goal Definer 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/goal-definer/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Goal Definer 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 196,000+ 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/goal-definer
curl -L https://claudskills.com/skills/goal-definer/SKILL.md \
  -o ~/.claude/skills/goal-definer/SKILL.md

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

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

📱 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 Goal Definer Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/goal-definer/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Goal Definer skill do?

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 Goal Definer skill?

Use Goal Definer 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 Goal Definer" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Goal Definer 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. Goal Definer 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

Source: https://github.com/leoluyi/skills/blob/HEAD/skills/goal-definer/SKILL.md
License: MIT
Author: leoluyi
Website: https://leoluyi.tw/skills/

Cite this skill

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

APA

leoluyi. (2026). Goal Definer [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/goal-definer/

BibTeX

@misc{goal-definer-2026,
  author    = {leoluyi},
  title     = {Goal Definer [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/goal-definer/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/goal-definer.svg)](https://claudskills.com/skills/goal-definer/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-09-28 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/goal-definer/#security)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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