diff --git a/src/ai/logic.rs b/src/ai/logic.rs
index 3627697..d0be101 100644
--- a/src/ai/logic.rs
+++ b/src/ai/logic.rs
@@ -8,12 +8,13 @@ use crate::models::world::people::{Gender, Person, Sex};
 use crate::models::world::raw::{ItemSeed, PersonSeed, SceneSeed};
 use crate::models::world::scenes::{Exit, Scene, SceneStub, Stage};
 use crate::models::{new_uuid_string, Content, ContentContainer, ContentRelation};
+use crate::commands::converter as command_converter;
 use anyhow::{bail, Result};
 use itertools::Itertools;
 use std::rc::Rc;
 
-use super::generator::AiGenerator;
 use super::coherence::AiCoherence;
+use super::generator::AiGenerator;
 
 /// Highest-level AI/LLM construct, which returns fully converted game
 /// objects to us. Basically, call the mid-level `client` to create
@@ -66,7 +67,7 @@ impl AiLogic {
         // Set aside anything with correct event, but wrong parameters.
         // Ask LLM to fix them, if possible
         //TODO make a aiclient::fix_execution
-        let converted = crate::commands::convert_raw_execution(raw_exec, &self.db).await;
+        let converted = command_converter::convert_raw_execution(raw_exec, &self.db).await;
 
         self.generator.reset_commands();
 
diff --git a/src/commands/converter.rs b/src/commands/converter.rs
new file mode 100644
index 0000000..08df508
--- /dev/null
+++ b/src/commands/converter.rs
@@ -0,0 +1,201 @@
+use crate::{
+    db::Database,
+    models::commands::{
+        CommandEvent, CommandExecution, EventCoherenceFailure, EventConversionError,
+        EventConversionFailures, ExecutionConversionResult, RawCommandEvent, RawCommandExecution,
+    },
+};
+use anyhow::Result;
+use futures::stream::{self, StreamExt, TryStreamExt};
+use itertools::{Either, Itertools};
+use std::convert::TryFrom;
+
+use strum::VariantNames;
+
+type EventConversionResult = std::result::Result<CommandEvent, EventConversionError>;
+
+impl CommandEvent {
+    pub fn new(raw_event: RawCommandEvent) -> EventConversionResult {
+        let event_name = raw_event.event_name.as_str().to_lowercase();
+
+        if Self::VARIANTS.contains(&event_name.as_str()) {
+            deserialize_recognized_event(raw_event)
+        } else {
+            Err(EventConversionError::UnrecognizedEvent(raw_event))
+        }
+    }
+}
+
+impl TryFrom<RawCommandEvent> for CommandEvent {
+    type Error = EventConversionError;
+
+    fn try_from(raw_event: RawCommandEvent) -> Result<Self, Self::Error> {
+        CommandEvent::new(raw_event)
+    }
+}
+
+/// Internal struct to hold the narrative parts of the
+/// RawCommandExecution to minimize clones.
+struct Narrative {
+    valid: bool,
+    reason: Option<String>,
+    narration: String,
+}
+
+fn from_raw_success(raw: Narrative, events: Vec<CommandEvent>) -> CommandExecution {
+    CommandExecution {
+        events,
+        valid: raw.valid,
+        reason: match &raw.reason {
+            Some(reason) if !raw.valid && reason.is_empty() => {
+                Some("invalid for unknown reason".to_string())
+            }
+            Some(_) if !raw.valid => raw.reason.clone(),
+            _ => None,
+        },
+        narration: raw.narration.clone(),
+    }
+}
+
+pub async fn convert_raw_execution(
+    mut raw_exec: RawCommandExecution,
+    db: &Database,
+) -> ExecutionConversionResult {
+    if !raw_exec.valid {
+        return ExecutionConversionResult::Success(CommandExecution::from_raw_invalid(raw_exec));
+    }
+
+    let narrative = Narrative {
+        valid: raw_exec.valid,
+        reason: raw_exec.reason.take(),
+        narration: std::mem::take(&mut raw_exec.narration),
+    };
+
+    let conversions: Vec<_> = raw_exec
+        .events
+        .into_iter()
+        .map(|raw_event| CommandEvent::new(raw_event))
+        .collect();
+
+    let (converted, conversion_failures): (Vec<_>, Vec<_>) =
+        conversions.into_iter().partition_map(|res| match res {
+            Ok(converted_event) => Either::Left(converted_event),
+            Err(err) => Either::Right(err),
+        });
+
+    // Coherence validation of converted events.
+    let (successes, incoherent_events): (Vec<_>, Vec<_>) = stream::iter(converted.into_iter())
+        .then(|event| validate_event_coherence(db, event))
+        .collect::<Vec<_>>()
+        .await
+        .into_iter()
+        .partition_map(|res| match res {
+            Ok(event) => Either::Left(event),
+            Err(err) => Either::Right(err),
+        });
+
+    let failure_len = conversion_failures.len() + incoherent_events.len();
+
+    if successes.len() > 0 && failure_len == 0 {
+        ExecutionConversionResult::Success(from_raw_success(narrative, successes))
+    } else if successes.len() > 0 && failure_len > 0 {
+        let converted_execution = from_raw_success(narrative, successes);
+        let failures =
+            EventConversionFailures::from_failures(conversion_failures, incoherent_events);
+        ExecutionConversionResult::PartialSuccess(converted_execution, failures)
+    } else {
+        ExecutionConversionResult::Failure(EventConversionFailures::from_failures(
+            conversion_failures,
+            incoherent_events,
+        ))
+    }
+}
+
+fn deserialize_recognized_event(
+    raw_event: RawCommandEvent,
+) -> Result<CommandEvent, EventConversionError> {
+    let event_name = raw_event.event_name.as_str().to_lowercase();
+    let event_name = event_name.as_str();
+
+    match event_name {
+        // scene-related
+        "change_scene" => Ok(CommandEvent::ChangeScene {
+            scene_key: raw_event
+                .parameter
+                .strip_prefix("scenes/") // Mini coherence check
+                .map(String::from)
+                .unwrap_or(raw_event.parameter)
+                .clone(),
+        }),
+
+        // bodily position-related
+        "stand" => Ok(CommandEvent::Stand {
+            target: raw_event.applies_to,
+        }),
+        "sit" => Ok(CommandEvent::Sit {
+            target: raw_event.applies_to,
+        }),
+        "prone" => Ok(CommandEvent::Prone {
+            target: raw_event.applies_to,
+        }),
+        "crouch" => Ok(CommandEvent::Crouch {
+            target: raw_event.applies_to,
+        }),
+
+        // combat-related
+        "take_damage" => deserialize_take_damage(raw_event),
+
+        // miscellaneous
+        "narration" => Ok(CommandEvent::Narration(raw_event.parameter)),
+
+        // unrecognized
+        _ => Err(EventConversionError::UnrecognizedEvent(raw_event)),
+    }
+}
+
+fn deserialize_take_damage(
+    raw_event: RawCommandEvent,
+) -> Result<CommandEvent, EventConversionError> {
+    match raw_event.parameter.parse::<u32>() {
+        Ok(dmg) => Ok(CommandEvent::TakeDamage {
+            target: raw_event.applies_to,
+            amount: dmg,
+        }),
+        Err(_) => Err(EventConversionError::InvalidParameter(raw_event)),
+    }
+}
+
+async fn validate_event_coherence<'a>(
+    db: &Database,
+    event: CommandEvent,
+) -> std::result::Result<CommandEvent, EventCoherenceFailure> {
+    match event {
+        CommandEvent::ChangeScene { ref scene_key } => match db.stage_exists(&scene_key).await {
+            Ok(exists) => match exists {
+                true => Ok(event),
+                false => Err(invalid_converted_event(event).unwrap()),
+            },
+            Err(err) => Err(invalid_converted_event_because_err(event, err)),
+        },
+        _ => Ok(event),
+    }
+}
+
+/// The event was converted from the raw response properly, but the
+/// information contained in the response is not valid.
+fn invalid_converted_event(event: CommandEvent) -> Option<EventCoherenceFailure> {
+    match event {
+        CommandEvent::ChangeScene { .. } => Some(EventCoherenceFailure::TargetDoesNotExist(event)),
+        _ => None,
+    }
+}
+
+/// The event was converted from the raw response properly, but
+/// something went wrong with attempting to check the coherence of the
+/// converted event.
+fn invalid_converted_event_because_err(
+    event: CommandEvent,
+    err: anyhow::Error,
+) -> EventCoherenceFailure {
+    EventCoherenceFailure::OtherError(event, format!("{}", err))
+}
diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index 08df508..d56f56d 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -1,201 +1,2 @@
-use crate::{
-    db::Database,
-    models::commands::{
-        CommandEvent, CommandExecution, EventCoherenceFailure, EventConversionError,
-        EventConversionFailures, ExecutionConversionResult, RawCommandEvent, RawCommandExecution,
-    },
-};
-use anyhow::Result;
-use futures::stream::{self, StreamExt, TryStreamExt};
-use itertools::{Either, Itertools};
-use std::convert::TryFrom;
-
-use strum::VariantNames;
-
-type EventConversionResult = std::result::Result<CommandEvent, EventConversionError>;
-
-impl CommandEvent {
-    pub fn new(raw_event: RawCommandEvent) -> EventConversionResult {
-        let event_name = raw_event.event_name.as_str().to_lowercase();
-
-        if Self::VARIANTS.contains(&event_name.as_str()) {
-            deserialize_recognized_event(raw_event)
-        } else {
-            Err(EventConversionError::UnrecognizedEvent(raw_event))
-        }
-    }
-}
-
-impl TryFrom<RawCommandEvent> for CommandEvent {
-    type Error = EventConversionError;
-
-    fn try_from(raw_event: RawCommandEvent) -> Result<Self, Self::Error> {
-        CommandEvent::new(raw_event)
-    }
-}
-
-/// Internal struct to hold the narrative parts of the
-/// RawCommandExecution to minimize clones.
-struct Narrative {
-    valid: bool,
-    reason: Option<String>,
-    narration: String,
-}
-
-fn from_raw_success(raw: Narrative, events: Vec<CommandEvent>) -> CommandExecution {
-    CommandExecution {
-        events,
-        valid: raw.valid,
-        reason: match &raw.reason {
-            Some(reason) if !raw.valid && reason.is_empty() => {
-                Some("invalid for unknown reason".to_string())
-            }
-            Some(_) if !raw.valid => raw.reason.clone(),
-            _ => None,
-        },
-        narration: raw.narration.clone(),
-    }
-}
-
-pub async fn convert_raw_execution(
-    mut raw_exec: RawCommandExecution,
-    db: &Database,
-) -> ExecutionConversionResult {
-    if !raw_exec.valid {
-        return ExecutionConversionResult::Success(CommandExecution::from_raw_invalid(raw_exec));
-    }
-
-    let narrative = Narrative {
-        valid: raw_exec.valid,
-        reason: raw_exec.reason.take(),
-        narration: std::mem::take(&mut raw_exec.narration),
-    };
-
-    let conversions: Vec<_> = raw_exec
-        .events
-        .into_iter()
-        .map(|raw_event| CommandEvent::new(raw_event))
-        .collect();
-
-    let (converted, conversion_failures): (Vec<_>, Vec<_>) =
-        conversions.into_iter().partition_map(|res| match res {
-            Ok(converted_event) => Either::Left(converted_event),
-            Err(err) => Either::Right(err),
-        });
-
-    // Coherence validation of converted events.
-    let (successes, incoherent_events): (Vec<_>, Vec<_>) = stream::iter(converted.into_iter())
-        .then(|event| validate_event_coherence(db, event))
-        .collect::<Vec<_>>()
-        .await
-        .into_iter()
-        .partition_map(|res| match res {
-            Ok(event) => Either::Left(event),
-            Err(err) => Either::Right(err),
-        });
-
-    let failure_len = conversion_failures.len() + incoherent_events.len();
-
-    if successes.len() > 0 && failure_len == 0 {
-        ExecutionConversionResult::Success(from_raw_success(narrative, successes))
-    } else if successes.len() > 0 && failure_len > 0 {
-        let converted_execution = from_raw_success(narrative, successes);
-        let failures =
-            EventConversionFailures::from_failures(conversion_failures, incoherent_events);
-        ExecutionConversionResult::PartialSuccess(converted_execution, failures)
-    } else {
-        ExecutionConversionResult::Failure(EventConversionFailures::from_failures(
-            conversion_failures,
-            incoherent_events,
-        ))
-    }
-}
-
-fn deserialize_recognized_event(
-    raw_event: RawCommandEvent,
-) -> Result<CommandEvent, EventConversionError> {
-    let event_name = raw_event.event_name.as_str().to_lowercase();
-    let event_name = event_name.as_str();
-
-    match event_name {
-        // scene-related
-        "change_scene" => Ok(CommandEvent::ChangeScene {
-            scene_key: raw_event
-                .parameter
-                .strip_prefix("scenes/") // Mini coherence check
-                .map(String::from)
-                .unwrap_or(raw_event.parameter)
-                .clone(),
-        }),
-
-        // bodily position-related
-        "stand" => Ok(CommandEvent::Stand {
-            target: raw_event.applies_to,
-        }),
-        "sit" => Ok(CommandEvent::Sit {
-            target: raw_event.applies_to,
-        }),
-        "prone" => Ok(CommandEvent::Prone {
-            target: raw_event.applies_to,
-        }),
-        "crouch" => Ok(CommandEvent::Crouch {
-            target: raw_event.applies_to,
-        }),
-
-        // combat-related
-        "take_damage" => deserialize_take_damage(raw_event),
-
-        // miscellaneous
-        "narration" => Ok(CommandEvent::Narration(raw_event.parameter)),
-
-        // unrecognized
-        _ => Err(EventConversionError::UnrecognizedEvent(raw_event)),
-    }
-}
-
-fn deserialize_take_damage(
-    raw_event: RawCommandEvent,
-) -> Result<CommandEvent, EventConversionError> {
-    match raw_event.parameter.parse::<u32>() {
-        Ok(dmg) => Ok(CommandEvent::TakeDamage {
-            target: raw_event.applies_to,
-            amount: dmg,
-        }),
-        Err(_) => Err(EventConversionError::InvalidParameter(raw_event)),
-    }
-}
-
-async fn validate_event_coherence<'a>(
-    db: &Database,
-    event: CommandEvent,
-) -> std::result::Result<CommandEvent, EventCoherenceFailure> {
-    match event {
-        CommandEvent::ChangeScene { ref scene_key } => match db.stage_exists(&scene_key).await {
-            Ok(exists) => match exists {
-                true => Ok(event),
-                false => Err(invalid_converted_event(event).unwrap()),
-            },
-            Err(err) => Err(invalid_converted_event_because_err(event, err)),
-        },
-        _ => Ok(event),
-    }
-}
-
-/// The event was converted from the raw response properly, but the
-/// information contained in the response is not valid.
-fn invalid_converted_event(event: CommandEvent) -> Option<EventCoherenceFailure> {
-    match event {
-        CommandEvent::ChangeScene { .. } => Some(EventCoherenceFailure::TargetDoesNotExist(event)),
-        _ => None,
-    }
-}
-
-/// The event was converted from the raw response properly, but
-/// something went wrong with attempting to check the coherence of the
-/// converted event.
-fn invalid_converted_event_because_err(
-    event: CommandEvent,
-    err: anyhow::Error,
-) -> EventCoherenceFailure {
-    EventCoherenceFailure::OtherError(event, format!("{}", err))
-}
+pub mod converter;
+pub mod builtins;