Prompt Improver
severity1/claude-code-prompt-improver
This skill enriches vague prompts with targeted research and clarification before execution.
Expert prompt optimization for LLMs and AI systems. An agent skill from aiskillstore/marketplace.
Install Prompt Optimization
$ npx skills add aiskillstore/marketplace --skill prompt-optimization -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace prompt-optimization --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/89jobrien/prompt-optimization .claude/skills/prompt-optimization && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "prompt-optimization" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimization into .claude/skills/prompt-optimization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prompt-optimization", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimizationType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill prompt-optimization -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace prompt-optimization --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/89jobrien/prompt-optimization .agents/skills/prompt-optimization && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "prompt-optimization" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimization into .agents/skills/prompt-optimization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prompt-optimization", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill prompt-optimization -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace prompt-optimization --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/89jobrien/prompt-optimization .cursor/skills/prompt-optimization && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "prompt-optimization" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimization into .cursor/skills/prompt-optimization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prompt-optimization", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/89jobrien/prompt-optimization--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill prompt-optimization -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace prompt-optimization --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/89jobrien/prompt-optimization .gemini/skills/prompt-optimization && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "prompt-optimization" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimization into .gemini/skills/prompt-optimization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prompt-optimization", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace prompt-optimizationInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill prompt-optimization -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/89jobrien/prompt-optimization .github/skills/prompt-optimization && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "prompt-optimization" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimization into .github/skills/prompt-optimization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prompt-optimization", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill prompt-optimization -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace prompt-optimization --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/89jobrien/prompt-optimization .opencode/skills/prompt-optimization && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "prompt-optimization" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/89jobrien/prompt-optimization into .opencode/skills/prompt-optimization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prompt-optimization", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
prompt-optimization- GitHub stars
- 430
- Used in
- 1 other repo
- Token cost
- ~757 tokens
- SKILL.md length
- 283 words
- Files
- 2
- Skills in repo
- 1,085
- Repo updated
- First seen
- Licence
- None found
At a glance
Expert prompt optimization for LLMs and AI systems. An agent skill from aiskillstore/marketplace.
- Works in 6 steps: Prompt Design: Creates effective prompts… → Few-Shot Learning: Implements few-shot… → Chain-of-Thought: Uses reasoning… → …
- Building AI features
- SKILL.md covers When to Use This Skill, What This Skill Does, How to Use and Prompt Techniques, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Prompt Optimization is an agent skill from aiskillstore/marketplace. Expert prompt optimization for LLMs and AI systems. Use when building AI features, improving agent performance, crafting system prompts, or optimizing LLM interactions. Masters prompt patterns and techniques.
Its SKILL.md is about 760 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in AI & LLM Engineering, covering Prompt engineering. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Building AI features
- Improving agent performance
- Crafting system prompts
- Optimizing LLM interactions
Example prompts
- “/prompt-optimization”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Prompt Design: Creates effective prompts with clear structure
- Few-Shot Learning: Implements few-shot examples for better results
- Chain-of-Thought: Uses reasoning patterns for complex tasks
- Output Formatting: Specifies clear output formats
- Constraint Setting: Sets boundaries and constraints
- Performance Optimization: Improves prompt efficiency and results
What it can do on your machine
Read from SKILL.md and the folder at commit 4ac52da. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Prompt Optimization loads about 757 tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 283 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 283 words (~757 tokens).
“This skill optimizes prompts for LLMs and AI systems, focusing on effective prompt patterns, few-shot learning, and optimal AI interactions.”
- name
- prompt-optimization
- author
- Joseph OBrien
- status
- unpublished
- updated
- 2025-12-23
- version
- 1.0.1
- tag
- skill
- type
- skill
Files
SKILL.md and 1 other file in skills/89jobrien/prompt-optimization of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit 4ac52da
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Prompt Optimization next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Prompt Optimization this skillaiskillstore/marketplace | 430 | 1 repos | ~757 | Automated safety check: Pass | None | |
| Prompt Improverseverity1/claude-code-prompt-improver | 1.9k | 2 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Prompt Engineering Patternsynulihao/AgentSkillOS | 617 | 14 repos | ~1.7k | Automated safety check: Pass | None | |
| Patch CreationPiebald-AI/tweakcc | 2.5k | — | ~1.6k | Automated safety check: Pass | MIT | |
| LLM Application DevMoizIbnYousaf/ai-agent-skills | 1.1k | 2 repos | ~1.3k | Automated safety check: Pass | MIT | |
| Senior Prompt Engineermaslennikov-ig/claude-code-orchestrator-kit | 259 | 4 repos | ~1.4k | Automated safety check: Pass | Custom licence |
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Categories
Questions about Prompt Optimization
What does Prompt Optimization do?
Expert prompt optimization for LLMs and AI systems. An agent skill from aiskillstore/marketplace. Prompt Optimization is an agent skill from aiskillstore/marketplace. Expert prompt optimization for LLMs and AI systems.
When should I use Prompt Optimization?
Prompt Optimization fits situations like: building AI features; improving agent performance; crafting system prompts; optimizing LLM interactions.
How do I install Prompt Optimization in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill prompt-optimization -a claude-code`. Or copy the skill folder (skills/89jobrien/prompt-optimization in aiskillstore/marketplace) into .claude/skills/prompt-optimization in your project. Claude Code loads it when a task matches its description.
How do I install Prompt Optimization in Codex?
Run `npx skills add aiskillstore/marketplace --skill prompt-optimization -a codex`. Or copy the skill folder (skills/89jobrien/prompt-optimization in aiskillstore/marketplace) into .agents/skills/prompt-optimization in your project. Codex loads it when a task matches its description.
Can I use Prompt Optimization in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill prompt-optimization -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/prompt-optimization, .gemini/skills/prompt-optimization, .github/skills/prompt-optimization and .opencode/skills/prompt-optimization in your project.
What does Prompt Optimization need to run?
SKILL.md names no scripts, command-line tools or credentials: Prompt Optimization is instructions for the agent only.
Does Prompt Optimization access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Prompt Optimization safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Prompt Optimization use?
No licence was found for Prompt Optimization or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Prompt Optimization use?
About 757 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Prompt Optimization?
Skills that share tags, products or a category with Prompt Optimization: Prompt Improver (severity1/claude-code-prompt-improver, 1.9k stars), Prompt Engineering Patterns (ynulihao/AgentSkillOS, 617 stars), Patch Creation (Piebald-AI/tweakcc, 2.5k stars) and LLM Application Dev (MoizIbnYousaf/ai-agent-skills, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Prompt Optimization?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.