prompt_builder: A macOS tool to build long-context prompts for models like OpenAI o3 and Gemini 2.5

by sangddn · Agent Tool · ★ 50

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install prompt_builder

git clone https://github.com/sangddn/prompt_builder.git

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 71/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

devtoolsllmprompt-engineering

Quick Facts

Stars50
Forks5
LanguageDart
CategoryAgent Tool
LicenseMIT
Quality Score71/100
Last Updated2025-06-18
Created2024-12-20
Platformsgemini
Est. Tokens~642k

About prompt_builder

Prompt Builder Website. Download for macOS. What is Prompt Builder? Prompt Builder is a macOS app for creating long, complex prompts for LLMs. Whether you're coding, journaling, or writing a novel, Prompt Builder helps you pull together multiple files, transcripts, images, and snippets all in one prompt—without the headache of manually copying and pasting content or worrying about token counts.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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