# Glossary: AI customer support terms

> Definitions that earn their own traffic: drift detection, semantic fingerprints, MCP, agent experience and more.

Canonical: https://peeve.ai/glossary/

- **[Drift detection](https://peeve.ai/glossary/drift-detection/)** — Drift detection is the practice of noticing when a product's interface has changed away from what a system believed about it.
- **[Semantic fingerprint](https://peeve.ai/glossary/semantic-fingerprint/)** — A semantic fingerprint is how an in-product agent stores an interface element without depending on its markup.
- **[Capability registry](https://peeve.ai/glossary/capability-registry/)** — A capability registry is a single definition of what an agent can do inside a product (invite a teammate, change a plan, download an invoice), defined once and rendered two ways: as cursor motion for human users and as typed MCP tools for their AI agents.
- **[MCP (Model Context Protocol)](https://peeve.ai/glossary/mcp/)** — MCP, the Model Context Protocol, is an open standard for connecting AI agents to external tools and data.
- **[Prompt injection](https://peeve.ai/glossary/prompt-injection/)** — Prompt injection is an attack where hostile text on a page is read by an AI model as an instruction rather than as data.
- **[In-app guidance](https://peeve.ai/glossary/in-app-guidance/)** — In-app guidance is help delivered inside a product at the moment a user needs it, rather than in a separate help center.
- **[Digital adoption platform](https://peeve.ai/glossary/digital-adoption-platform/)** — A digital adoption platform (DAP) is software that overlays a product with tooltips, walkthroughs and analytics to help users learn it.
- **[Deflection rate](https://peeve.ai/glossary/deflection-rate/)** — Deflection rate is the share of support contacts resolved without a human agent.
- **[Agent experience](https://peeve.ai/glossary/agent-experience/)** — Agent experience (AX) is the design discipline of making a product usable by AI agents, not just people.
- **[Time to value](https://peeve.ai/glossary/time-to-value/)** — Time to value (TTV) is how long it takes a new user or customer to reach the first outcome that made them sign up.
- **[Self-healing documentation](https://peeve.ai/glossary/self-healing-documentation/)** — Self-healing documentation is product knowledge that repairs itself as the interface changes, instead of decaying between manual edits.