Using AI Tools

Understand inputs, settings and limits, then work through practical tool problems.

Choose tools for your materials and troubleshoot their use
Recommended reading

Can Claude Watch Videos? A Transcript-and-Frame Workflow

Prepare a transcript and key frames. Learn what each can support before treating a video as fully reviewed.

All articles

  1. Developer FoundationsIs a Longer Context Always Better? From Tokens and Context Windows to Context EngineeringLearn how tokens, context windows, state, memory, and context engineering fit together—and why better-selected context matters more than simply adding more tokens.
  2. Developer FoundationsPrompt Is Not Magic: Structured Output, Tool Calling, and NondeterminismLearn how prompt constraints, Structured Output, Tool Calling, temperature, top-p, and invariant-based testing turn an LLM into a more reliable AI application component.
  3. Tool Choice & SetupCC Switch Setup: Verify a Provider Change and Switch BackSet up one Codex provider in CC Switch. Check Kimi and DeepSeek access, billing and requests, then switch back.
  4. Features & TroubleshootingCodex Permission Mode Unavailable: A Four-Layer Diagnostic ChecklistCheck your Codex environment, workspace scope, file and network boundaries, approval policy and managed profiles before changing settings.
  5. Audio & Video ToolsExport HTML Animation to MP4 with Playwright and FFmpegRender a six-second HTML animation at 24 fps, encode 144 frames with FFmpeg, and verify the dimensions, duration and animation timing.
  6. Audio & Video ToolsCan Claude Watch Videos? A Transcript-and-Frame WorkflowLearn what a transcript can prove, when frames are needed, and how to request a timestamped video summary without pretending Claude received the full video.
  7. Tool Choice & SetupMove Codex to Another Computer: Backup and Restore GuideMove Codex projects, settings and chat records to another computer, with paths, sign-in and restore checks.