Start hereAug 31, 2026
The model is not the system
Where rules live in 2026: ChatGPT Projects, Memory policy, AGENTS.md, CLAUDE.md. Eight minutes.
Layer 0
The model is not the system.
Put rules in the layer where they belong.
AI Playbooks That Actually Ship
Free chapters, downloadable frameworks, diagnostic checklists, and worked examples. Built for professionals who apply AI daily, not collect bookmarks.
Problem-first15–30 min readsSource-dated5 guides
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GPT-5 systemsMar 12, 2026
The GPT-5 Intelligence Playbook
Professional model selection, execution modes, reasoning escalation, and agentic workflow blueprints for the GPT-5 family.
T-MINUSAI
Read the full guide.
OpenClaw guideMar 12, 2026
The OpenClaw Field Manual
A practical manual for OpenClaw architecture, skill risk management, 25+ real-world use cases, and a hardened deployment runbook.
T-MINUSAI
Read the full guide.
Multimodal guideMar 12, 2026
Multimodal AI Mastery
Vision, voice, video, and document workflows with multimodal model comparisons, prompt frameworks, and failure-mode fixes.
T-MINUSAI
Read the full guide.
Prompting guideMar 12, 2026
The TminusAI Prompt Scorecard
A decision-grade QA system for prompts, with diagnostic protocols, adversarial review loops, debugging logic, and ready-to-use templates.
T-MINUSAI
Read the full guide.
Who these guides are for
Professionals who use ChatGPT, Claude, or Gemini daily and want to move past ad-hoc prompting. Teams building their first AI SOPs. New here? Read The model is not the system. Ready to install? See Power Guides.
FAQ
Are the T-Minus AI guides really free?
Yes. No email wall, no credit card, no "free trial" language. Download them, copy them, share them with your team. We fund the site through paid Power Guides and sponsorships disclosed on specific pages.
Which guide should I start with?
Start with The model is not the system for the workspace and instruction-file mental model. Then use the Prompt Scorecard for weak prompts, the OpenClaw Field Manual for agent systems, or Multimodal AI Mastery for files beyond plain text.
How often do you update the guides?
Each guide is revised when the underlying frameworks, model capabilities, or pricing changes materially. Dates are published on every guide page. We do not chase every model release. We update when the current guidance would lead a reader wrong.
Can I use these guides in my team training?
Yes, you can share them internally, quote them in training decks, or reference them in onboarding docs. Attribution is appreciated but not required. For commercial redistribution or repackaging, reach out via the contact links on the About page.
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