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system-prompt-optimizer

optimize system prompts and other reusable prompt templates into concise, modular, copy-paste-ready instructions with explicit output contracts, completion…

Skill by ossianravn

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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/ossianravn-system-prompt-optimizer

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

optimize system prompts and other reusable prompt templates into concise, modular, copy-paste-ready instructions with explicit output contracts, completion criteria, dependency-aware tool rules, and bounded self-checks. use when the user wants to create, rewrite, tighten, debug, compare, or critique a system prompt, developer prompt, or reusable prompt template; convert messy task notes, policies, examples, or workflow requirements into a stronger prompt; or decide which prompt modules, variables, and verification steps are actually needed.

Use cases: writing, productivity, agent-building

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/system-prompt-optimizer

What's inside

Skill name
system-prompt-optimizer
Description
optimize system prompts and other reusable prompt templates into concise, modular, copy-paste-ready instructions with explicit output contracts, completion criteria, dependency-aware tool rules, and bounded self-checks. use when the user wants to create, rewrite, tighten, debug, compare, or critique a system prompt, developer prompt, or reusable prompt template; convert messy task notes, policies, examples, or workflow requirements into a stronger prompt; or decide which prompt modules, variables, and verification steps are actually needed.
License
unknown
Instructions
300 lines in SKILL.md · view on GitHub

Files (3)

  • SKILL.md
  • openai.yaml · agents/
  • prompt-design-patterns.md · references/

The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub

More from ossianravn/random-prompts

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Last commit (this folder)
Sep 28, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License
License unknown
Repository
github.com/ossianravn/random-prompts
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

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Cite this page

system-prompt-optimizer skill. Agent Mart. https://agentmart.dev/skills/ossianravn-system-prompt-optimizer (last updated 2026-10-24)