Plain-language glossary

Term	Plain meaning
API	A defined way for one program to ask another program to do something.
MCP	A standard connection that lets an assistant discover and call tools.
OAuth	A sign-in and permission process that avoids handing an app your password.
PKCE	An extra check that ties a sign-in result to the program that started it.
Token	A short-lived pass a program sends with its request.
Scope	An action category a token may request, such as read or write.
Audience	The particular service a token is meant for.
Organization / tenant	A company or group whose data and permissions are kept separate.
Workspace	A place within an organization for a team or set of work.
Endpoint	The address for one API operation.
JSON	A common text format for structured inputs and results.
Schema	The rules for which fields and values a request or result may contain.
Run / job	One saved attempt to do some work.
Checkpoint	Saved progress that an eligible job can continue from.
Idempotency	A supported operation recognizes a repeated request and avoids doing the same change twice.
Provenance	The record of where a result came from: inputs, methods and versions.
Rollback	Returning to a previous software release.
Restore	Recovering saved data from a backup into a chosen destination.
CI/CD	Automated checks and release steps used when software changes.
ΔG	A calculated change in free energy, shown with its method and units. It is one piece of molecular-interaction evidence.