Codex Prompt Template Builder

Codex Prompt Template Builder

Goal: turn broad user intent into a reusable, safe, copy/paste Codex prompt template with clear inputs, plugin/skill routing, workflow steps, validation, and expected output.

Workflow

1. Read references/prompt-template-system.md.
2. Inspect prompt-templates/README.md and choose the closest template.
3. If no template fits, create one new template with frontmatter and a concrete

prompt body.

1. For public prompt packs, add or update color-coded plugin lanes in

PROMPT_GALLERY.md or prompt-templates/README.md.

1. Keep the template reusable:

• role and outcome
• dynamic inputs/placeholders
• plugins or skills to use
• safety gates
• execution steps
• validation
• final output format

1. For prompt packs, add the template to prompt-templates/ and update the

catalog only when discovery changes.

1. Run the template catalog validator.

Template Frontmatter

Each template must include:

---
name: lower-kebab-name
title: Human Readable Title
summary: One sentence outcome.
tags: comma, separated, keywords
plugins: comma, separated, plugins-or-skills
safety: Main safety gate or none
---

Commands

python3 scripts/prompt_template_catalog.py --validate
python3 scripts/prompt_template_catalog.py --table

References

• references/prompt-template-system.md
• prompt-templates/README.md
• Pair with $skill-pack-factory when creating a full prompt/skill pack.
• Pair with $skill-quality-gate before publishing templates as skills.

Skip When

• The user only needs a tiny one-off prompt.
• The requested template would embed private credentials, account secrets, or

hidden chain-of-thought instructions.

• The requested workflow mainly installs or runs untrusted code; use

$mcp-safety-review or $sandbox-source-intake first.

Validation

• The template has complete frontmatter and no placeholder secrets.
• The prompt states dynamic inputs, tools/skills/plugins, safety gates,

workflow, verification, and output format.

• Public templates have clear color-coded plugin/capability lanes when useful.
• The prompt can be copied into Codex without requiring hidden repo context.
• python3 scripts/prompt_template_catalog.py --validate passes.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: Arnie016
• Source: Arnie016/codex-prompt-templates
• License: MIT
• Homepage: https://github.com/Arnie016/codex-prompt-templates

Install and usage instructions live in the source repository linked above.