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Create or update skills that extend Codex with knowledge, workflows, and tools.
This skill appears to be documentation/prompt-only guidance for creating other skills. It is open-source with strong community adoption and shows no red flags around secrets, network exfiltration, local execution, or data access, so overall risk is low. The main caveats are the unspecified license and unknown maintenance status.
The materials explicitly state that no keys or environment variables are required, and the README does not request any token or API credential; no credential collection, storage, or misuse path is evident.
The materials list no remote endpoints, and the content is primarily textual guidance for skill creation; there is no indication of sending user data to third-party services or unknown hosts.
The system checks classify it as prompt-only. The present material does not include executable logic and does not claim to spawn local processes or invoke system capabilities. The README's mention that skills may contain scripts is generic structure guidance, not evidence that this skill executes code.
There is no stated need to read or write local files, databases, the clipboard, or other resources. As a documentation-style skill, its data exposure appears limited to normal conversation context.
It comes from the open-source GitHub repository openai/skills with high community adoption (~22k stars), providing strong auditability and source credibility that materially lowers risk. Although the license is unspecified and maintenance status is unknown, there are no concrete red flags such as closed source, clear abandonment, or suspicious distribution.
Copy the install command and let the AI configure it · recommended for beginners
Please install the "skill-creator" skill from askskill: 1. Download https://raw.githubusercontent.com/openai/skills/main/skills/.system/skill-creator/SKILL.md 2. Save it as ~/.claude/skills/skill-creator/SKILL.md 3. Reload skills and tell me it's ready
This skill provides guidance for creating effective skills.
Skills are modular, self-contained folders that extend Codex's capabilities by providing specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific domains or tasks—they transform Codex from a general-purpose agent into a specialized agent equipped with procedural knowledge that no model can fully possess.
The context window is a public good. Skills share the context window with everything else Codex needs: system prompt, conversation history, other Skills' metadata, and the actual user request.
Default assumption: Codex is already very smart. Only add context Codex doesn't already have. Challenge each piece of information: "Does Codex really need this explanation?" and "Does this paragraph justify its token cost?"
Prefer concise examples over verbose explanations.
Match the level of specificity to the task's fragility and variability:
High freedom (text-based instructions): Use when multiple approaches are valid, decisions depend on context, or heuristics guide the approach.
Medium freedom (pseudocode or scripts with parameters): Use when a preferred pattern exists, some variation is acceptable, or configuration affects behavior.
Low freedom (specific scripts, few parameters): Use when operations are fragile and error-prone, consistency is critical, or a specific sequence must be followed.
Think of Codex as exploring a path: a narrow bridge with cliffs needs specific guardrails (low freedom), while an open field allows many routes (high freedom).
Every skill consists of a required SKILL.md file and optional bundled resources:
skill-name/
├── SKILL.md (required)
│ ├── YAML frontmatter metadata (required)
│ │ ├── name: (required)
│ │ └── description: (required)
│ └── Markdown instructions (required)
├── agents/ (recommended)
│ └── openai.yaml - UI metadata for skill lists and chips
└── Bundled Resources (optional)
├── scripts/ - Executable code (Python/Bash/etc.)
├── references/ - Documentation intended to be loaded into context as needed
└── assets/ - Files used in output (templates, icons, fonts, etc.)
Every SKILL.md consists of:
name and description fields. These are the only fields that Codex reads to determine when the skill gets used, thus it is very important to be clear and comprehensive in describing what the skill is, and when it should be used.display_name, short_description, and default_prompt by reading the skill--interface key=value to scripts/generate_openai_yaml.py or scripts/init_skill.pyagents/openai.yaml still matches SKILL.md; regenerate if stalescripts/)Executable code (Python/Bash/etc.) for tasks that require deterministic reliability or are repeatedly rewritten.
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