📖 The AI Tool Bible
prompting

Prompt Engineering

The practice of shaping the input to an LLM — instructions, examples, format constraints — to elicit reliable output.

Related terms

Chain of Thought (CoT)Few-shot LearningZero-shot Learning

Tools that implement Prompt Engineering

Humanloop

Evaluation · Platform (any LLM)
8.2

Prompt management + evals for collaborative AI teams.

Paid· From $200/mo teamprompt managementteam collab

Claude Code

Coding · Claude (Opus / Sonnet / Haiku)
8.2

Anthropic's agentic coding tool that reads, edits, and ships code from the terminal, IDE, or web.

Freemium· Pro $17-20/mo; Max 5x $100/mo; Max 20x $200/mo; API meteredagentic-codingcodebase-refactor

PromptLayer

Evaluation · Platform (any LLM)
7.9

Lightweight prompt logging + management for OpenAI/Claude apps.

Freemium· Free; Pro from $50/moprompt loggingversioning

Cursor

Featured
Coding · Claude / GPT (configurable)
9.5

AI-first VS Code fork — chat, edit, and agentic coding in one IDE.

Freemium· Free hobby; Pro $20/mo; Business $40/mocodingrefactors