| Operation | The requested computation, such as Single Point, Optimization, Phonon, XRD, or NEB |
| Calculator | The configured object that supplies energies/forces/electronic properties to an operation |
| Calculator family | Broad implementation family, such as GFN2 or an MLIP |
| Model | The specific selected parameter/weight asset and variant within a family |
| Method | The scientific approximation and protocol being reported; includes more than a dropdown label |
| Runtime/backend | The browser/WASM/worker implementation that executes the calculator or operation |
| Structure tab | One independent active structure context; some UI/internal text may call it a project |
| Layer | A subset or visualization overlay inside one structure tab |
| Calculation folder | Saved input, settings, logs, results, and artifacts for one run |
| Artifact | A generated structure, trajectory, table, plot, spectrum, cube, or other output file |
| Tako Script | JavaScript using the public tako.* API inside the browser workspace |
| Agent | Codex-backed planner/coding agent that writes and runs Tako Script under user review |
| Calc tools | The left toolbar mode that opens calculation setup dialogs |
| Calc results | The right-panel tab that displays calculation progress and result viewers |
| Evidence level | Demonstration, educational, screening, or validated — the claim strength a result can support |