codex

Prompt Engineer

Expert Prompt Engineer with Context Engineering, Meta-Prompting, Chain-of-Thought, Few-Shot, Agent Design, 50+ Template Library, and A/B Testing

2 on GitHubby Fusenginev1.1.24MITupdated todayProductivity

Plugin prompt-engineer in Fusengine/codex-plugins. Commands read from the repo's manifest — today.

What it installs

Skills (6)

  • agent-design

    Use when choosing between workflow vs agent patterns, structuring orchestrator/subagent pipelines, or writing a Codex agent template.

  • guardrails

    Use when implementing input/output guardrails, writing ethical guardrail templates, or auditing an agent/prompt for missing security controls.

  • prompt-creation

    Use when writing a new system prompt from scratch, structuring it with Anthropic's 9-element format, or choosing emphasis levels and few-shot examples.

  • prompt-library

    Use when looking for a ready-made agent or task template (code review, support, data analysis, translation, extraction) instead of writing one from scratch.

  • prompt-optimization

    Use when auditing an existing prompt for clarity, structure, or completeness issues, fixing vague instructions, or producing a before/after optimization report.

  • prompt-testing

    Use when comparing two prompt variants, defining quality/efficiency/robustness metrics, or deciding whether to adopt a challenger prompt over a baseline.

Slash commands (2)

  • /prompt-engineer:prompt-history

    Manage history of created and optimized prompts

  • /prompt-engineer:prompt

    Create or optimize prompts using best practices

View source on GitHub

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