system-prompt-creator SKILL.md skillA
system-prompt-creator from tronghieu/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tronghieu/agent-skills/system-prompt-creator@git:20260326.caac78ePins git:20260326.caac78e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tronghieu/agent-skills
- Path
skills/system-prompt-creator/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260326.caac78e, committed Mar 26, 2026
- Size
- 13,064 bytes
- Repository stars
- 100
- License
- MIT
Create high-quality, model-aware system prompts for any LLM (Claude, GPT, Gemini, open-source, etc.). Use this skill whenever the user wants to create, write, build, design, draft, or improve a system prompt, system instructions, or custom instructions for any AI model. Also trigger when the user asks about prompt engineering, prompt design, prompt optimization, or wants to define behavior for an AI assistant, chatbot, agent, or any LLM-powered application — even if they don't explicitly say…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# System Prompt Creator Build effective system prompts for any LLM using a structured, research-backed process derived from the official prompting guides of Claude (Anthropic), GPT-5 (OpenAI), and Gemini (Google). This skill guides you through interview, analysis, structuring, drafting, and optimization — producing system prompts that are clear, well-structured, and tailored to the target model. ## Workflow Follow these 5 steps in order. Each step builds on the previous. ### Step 1: Interview — Gather Requirements Before writing anything, collect these essentials from the user: 1. **Target model** — Which LLM? (Claude, GPT, Gemini, open-source, or model-agnostic) 2. **Use case** — What will the AI do? (chatbot, agent, content generator, data extractor, code assistant, etc.) 3. **Persona** — Who should the AI be? (role, expertise level, personality traits) 4. **Audience** — Who interacts with it? (developers, end users, internal team, customers) 5. **Input types** — What will users send? (free text, code, documents, images, structured data) 6. **Output format** — What should responses look like? (prose, JSON, markdown, code, tables) …
Read the whole file at its exact version.
How to install
mdr add tronghieu/agent-skills/system-prompt-creator@sha256:7193f20189ce86cdThe line at the top of this page pins the label git:20260326.caac78e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_npgngg43bwuv2yoj)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 26, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13064 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
tronghieu/agent-skills · 100 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_npgngg43bwuv2yoj GET https://markdownregistry.com/api/v1/resolve?ref=tronghieu/agent-skills/system-prompt-creator GET https://markdownregistry.com/api/v1/blob/7193f20189ce86cdf2aa21212e1722570a67ed8c100a90bc989210236c1a4a7b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.