> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firedrill.run/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> Canonical definitions for Firedrill concepts and result terms.

## Core concepts

<ResponseField name="Tool">
  A synthetic dependency with typed operations, deterministic behavior, and optional state, faults, events, callbacks, custom routes, and browser UI.
</ResponseField>

<ResponseField name="World">
  One isolated stateful environment containing Tools, records, actors, permissions, virtual time, faults, pending work, and an ordered journal.
</ResponseField>

<ResponseField name="Actor">
  The runtime identity used to authorize and attribute Tool operations.
</ResponseField>

<ResponseField name="Persona">
  Optional human-readable context about an actor. A persona does not grant permissions.
</ResponseField>

<ResponseField name="Scenario">
  A reusable variation of starting data, actors, permissions, faults, events, Tool overrides, or virtual time.
</ResponseField>

<ResponseField name="Target">
  The declared adapter that invokes the agent under test as a module, command, HTTP service, or caller-supplied callback.
</ResponseField>

<ResponseField name="Drill">
  An executable behavioral test containing a task, target, starting conditions, actor, and assertions.
</ResponseField>

<ResponseField name="Suite">
  A named group of drills, commonly used for CI selection or Tool conformance.
</ResponseField>

## Execution and evidence

<ResponseField name="Build">
  The normalized, immutable, content-addressed representation compiled from repository source and any explicit per-test setup.
</ResponseField>

<ResponseField name="Run">
  One recorded execution of a drill selection. A run may contain several trials and retries.
</ResponseField>

<ResponseField name="Trial">
  One attempt with its own isolated world, seed, agent interaction, assertions, and evidence.
</ResponseField>

<ResponseField name="Evidence">
  The ordered record of calls, outcomes, state mutations, events, faults, callbacks, time changes, assertions, target output, and optional attachments.
</ResponseField>

<ResponseField name="Verdict">
  The result of evaluating the drill's assertions. A target completing successfully does not by itself produce a passing verdict.
</ResponseField>

<ResponseField name="Reset">
  Restoration of the full world or selected Tool packages to their declared starting state.
</ResponseField>

<ResponseField name="Reproduction">
  Running the same immutable build and seed again to investigate a retained result.
</ResponseField>

## Interfaces

<ResponseField name="Binding">
  Short-lived connection values that let a declared actor use Tool operations through direct, HTTP, MCP, or CLI transport.
</ResponseField>

<ResponseField name="Tool app">
  An optional browser interface bundled with a Tool and connected to the same state and operations as its backend.
</ResponseField>

<ResponseField name="Inspector">
  The local interface for browsing Tools, state, scenarios, drills, runs, comparisons, evidence, and optional Tool apps.
</ResponseField>