Prompt Engineering Patterns
wshobson/agents
Reference for designing and tuning production LLM prompts: few-shot examples, chain-of-thought, structured outputs, templates and system prompts.
Creates custom output styles for Claude Code that modify system prompts and behavior.
$ npx skills add aiskillstore/marketplace --skill generating-output-styles -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace generating-output-styles --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/emz1998/generating-output-styles .claude/skills/generating-output-styles && 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 "generating-output-styles" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/emz1998/generating-output-styles into .claude/skills/generating-output-styles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "generating-output-styles", 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/emz1998/generating-output-stylesType 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 generating-output-styles -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace generating-output-styles --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/emz1998/generating-output-styles .agents/skills/generating-output-styles && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "generating-output-styles" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/emz1998/generating-output-styles into .agents/skills/generating-output-styles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "generating-output-styles", 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 generating-output-styles -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace generating-output-styles --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/emz1998/generating-output-styles .cursor/skills/generating-output-styles && 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 "generating-output-styles" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/emz1998/generating-output-styles into .cursor/skills/generating-output-styles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "generating-output-styles", 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/emz1998/generating-output-styles--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 generating-output-styles -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace generating-output-styles --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/emz1998/generating-output-styles .gemini/skills/generating-output-styles && 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 "generating-output-styles" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/emz1998/generating-output-styles into .gemini/skills/generating-output-styles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "generating-output-styles", 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 generating-output-stylesInstalls 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 generating-output-styles -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/emz1998/generating-output-styles .github/skills/generating-output-styles && 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 "generating-output-styles" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/emz1998/generating-output-styles into .github/skills/generating-output-styles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "generating-output-styles", 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 generating-output-styles -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 generating-output-styles --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/emz1998/generating-output-styles .opencode/skills/generating-output-styles && 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 "generating-output-styles" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/emz1998/generating-output-styles into .opencode/skills/generating-output-styles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "generating-output-styles", 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.
generating-output-stylesCreates custom output styles for Claude Code that modify system prompts and behavior.
Generating Output Styles is an agent skill from aiskillstore/marketplace. Creates custom output styles for Claude Code that modify system prompts and behavior. Use when the user asks to create output styles, customize Claude's response format, generate output-style files, or mentions output style configuration.
Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/output-style-docs.md` and `skill-report.json`).
It sits in AI & LLM Engineering, covering Prompt engineering and Structured output and tool calling. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
3 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 755bc35. It shows what the files ask for, not the result of running them.
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.
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.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Generating Output Styles loads about 1.5k tokens when it runs, and up to ~2.6k if it reads all its reference files. Until then it costs about 66 tokens; SKILL.md has 492 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.
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.
Without a licence we can't republish the file, so here is its outline and opening line. It has 492 words (~1,508 tokens).
“Creates custom output styles for Claude Code following Anthropic's standards and best practices.”
SKILL.md and 2 other files (references) in skills/emz1998/generating-output-styles of aiskillstore/marketplace.
Open the folder on GitHubat commit 755bc35
Generating Output Styles 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 |
|---|---|---|---|---|---|---|
| Generating Output Styles this skillaiskillstore/marketplace | 430 | — | ~1.5k | Automated safety check: Pass | None | |
| Prompt Engineering Patternswshobson/agents | 40k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Agent Prompt Quality Barmastra-ai/mastra | 29k | — | ~2k | Automated safety check: Pass | Custom licence | |
| Kayba Stage 2 Domain Contextkayba-ai/agentic-context-engine | 2.6k | — | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Lintlanghermes-labs-ai/lintlang | 138 | — | ~719 | Automated safety check: Pass | Apache-2.0 | |
| Lintlang Audithermes-labs-ai/lintlang | 138 | — | ~1.9k | Automated safety check: Pass | Apache-2.0 |
wshobson/agents
Reference for designing and tuning production LLM prompts: few-shot examples, chain-of-thought, structured outputs, templates and system prompts.
mastra-ai/mastra
Universal quality bar and final audit rubric for any agent system prompt.
kayba-ai/agentic-context-engine
Gather domain context about the repository and agent — system prompt, tool definitions, domain docs, and behavior patterns from traces.
hermes-labs-ai/lintlang
A skill your agent uses when writing or reviewing AI agent configs, system prompts, or tool definitions (JSON/YAML/Python) and you need to catch ambiguous tool descriptions, missing stop conditions…
hermes-labs-ai/lintlang
Audit a named AI agent config, system prompt, tool definition, or instruction file (YAML, JSON, Markdown, text, or Python) with the released LintLang CLI in GitHub Copilot CLI.
microsoft/Huabu
Review the Huabu operate agent's three steering artifacts at their fixed repo locations — system prompt, tool descriptions, and skills.
aiskillstore/marketplace
Analyze codebase with tokei (fast line counts by language) and difft (semantic AST-aware diffs).
aiskillstore/marketplace
Process JSON with jq and YAML/TOML with yq. An agent skill from aiskillstore/marketplace.
aiskillstore/marketplace
Scans for project documentation files (AGENTS.md, CLAUDE.md, GEMINI.md, COPILOT.md, CURSOR.md, WARP.md, and 15+ other formats) and synthesizes guidance.
aiskillstore/marketplace
Modern file and content search using fd, ripgrep (rg), and fzf.
aiskillstore/marketplace
Modern find-and-replace using sd (simpler than sed) and batch replacement patterns.
aiskillstore/marketplace
Detects stale project plans and suggests session commands. An agent skill from aiskillstore/marketplace.
Categories
Creates custom output styles for Claude Code that modify system prompts and behavior. Generating Output Styles is an agent skill from aiskillstore/marketplace. Creates custom output styles for Claude Code that modify system prompts and behavior.
Generating Output Styles fits situations like: the user asks to create output styles; customize Claudes response format; generate output-style files; mentions output style configuration.
Run `npx skills add aiskillstore/marketplace --skill generating-output-styles -a claude-code`. Or copy the skill folder (skills/emz1998/generating-output-styles in aiskillstore/marketplace) into .claude/skills/generating-output-styles in your project. Claude Code loads it when a task matches its description.
Run `npx skills add aiskillstore/marketplace --skill generating-output-styles -a codex`. Or copy the skill folder (skills/emz1998/generating-output-styles in aiskillstore/marketplace) into .agents/skills/generating-output-styles in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill generating-output-styles -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/generating-output-styles, .gemini/skills/generating-output-styles, .github/skills/generating-output-styles and .opencode/skills/generating-output-styles in your project.
SKILL.md names no scripts, command-line tools or credentials: Generating Output Styles is instructions for the agent only.
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.
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.
No licence was found for Generating Output Styles or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
About 1.5k tokens (SKILL.md is roughly 6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.1k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Generating Output Styles: Prompt Engineering Patterns (wshobson/agents, 40k stars), Agent Prompt Quality Bar (mastra-ai/mastra, 29k stars), Kayba Stage 2 Domain Context (kayba-ai/agentic-context-engine, 2.6k stars) and Lintlang (hermes-labs-ai/lintlang, 138 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,044 skills in this directory. The repository was last updated on October 9, 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.