style: rewrap comments and docs lines lengthened by the previous_messages rename

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

backend/windmill-ai/src/types.rs

@@ -137,8 +137,8 @@ struct AIAgentArgsRaw {
     // nothing runs stateless instead of falling back to the run's memory id.
     #[serde(default, deserialize_with = "deserialize_present")]
     memory_id: Option<serde_json::Value>,
-    // Same distinction for an authored previous messages expression: null replaces a legacy manual list with
-    // no history, where an absent key keeps that list.
+    // Same distinction for an authored previous messages expression: null replaces a legacy manual
+    // list with no history, where an absent key keeps that list.
     #[serde(default, deserialize_with = "deserialize_present_messages")]
     previous_messages: Option<Option<Vec<OpenAIMessage>>>,
     enabled_tools: Option<Vec<String>>,

backend/windmill-worker/src/ai_executor.rs

@@ -144,8 +144,8 @@ fn keep_authored_history_args(
 
 /// Reconciles the step's history inputs, the agent's memory policy and the run's memory id, for
 /// every shape a flow or agent resource may still carry. Managed memory reads only a memory id, and
-/// memory that is off reads only previous messages. Also returns lines for the job log: a step input that
-/// went unused, or a policy that remembers ending up stateless.
+/// memory that is off reads only previous messages. Also returns lines for the job log: a step
+/// input that went unused, or a policy that remembers ending up stateless.
 fn resolve_history_source<'a>(
     args: &'a AIAgentArgs,
     run_memory_id: Option<Uuid>,
@@ -2133,8 +2133,8 @@ mod tests {
         }
     }
 
-    /// Empty previous messages a form leaves on a step never replace a legacy list; an expression does, even
-    /// when it evaluates to null.
+    /// Empty previous messages a form leaves on a step never replace a legacy list; an expression
+    /// does, even when it evaluates to null.
     #[test]
     fn only_an_expression_can_empty_a_legacy_message_list() {
         let run = Uuid::from_u128(1);

docs/reusable-ai-agents.md

@@ -17,10 +17,11 @@ every workspace via the standard cached-resource-type sync, like other built-in
   (`windmill-worker/src/ai_executor.rs`): the brain is interpolated, so a nested provider `$res:`
   credential resolves automatically.
 - The step keeps only the flow-local inputs (`user_message`, `user_attachments`, `enabled_tools`,
-  and the history inputs `memory_id` and `previous_messages`) in its own `input_transforms`; the brain and
-  tools stay in the resource (read-only in the step). `enabled_tools` says which of the roster this
-  step may call, narrowing one use of a shared agent without touching the agent: an absent field
-  carries every tool, a list carries the ones it names, and an empty list carries none.
+  and the history inputs `memory_id` and `previous_messages`) in its own `input_transforms`; the
+  brain and tools stay in the resource (read-only in the step). `enabled_tools` says which of the
+  roster this step may call, narrowing one use of a shared agent without touching the agent: an
+  absent field carries every tool, a list carries the ones it names, and an empty list carries
+  none.
 - The agent carries its tools' default input bindings verbatim as authored (static, AI-filled,
   or flow expressions), so saving round-trips losslessly. Each host flow overrides what it
   needs: `tool_inputs` stores per-tool overrides (a diff from the resource tool's own
@@ -53,20 +54,21 @@ which memory it is:
   webhooks, evals and plain runs pass no id and run stateless.
 - **Step: history inputs.** Flow-local, so they stay on a linked step. Each is read in one memory
   state only, and the editor offers it only there, the memory id behind a *Custom* toggle that
-  writes the key only once it is on. With managed memory on, `memory_id` overrides
-  the run's id, hashed the same way: a fixed value is one memory shared by every run, an expression
-  such as `flow_input.customer_id` one memory per key, and an expression that evaluates to nothing
-  runs stateless rather than falling back to the run's id. With memory off, `previous_messages` supplies the
-  history itself. The editor never seeds a placeholder for either, because a present key is the
+  writes the key only once it is on. With managed memory on, `memory_id` overrides the run's id,
+  hashed the same way: a fixed value is one memory shared by every run, an expression such as
+  `flow_input.customer_id` one memory per key, and an expression that evaluates to nothing runs
+  stateless rather than falling back to the run's id. With memory off, `previous_messages` supplies
+  the history itself. The editor never seeds a placeholder for either, because a present key is the
   step's choice, and a static empty value reads as unset.
 
 The worker reconciles them once per agent invocation, nested agent tools included, in
 `resolve_history_source` (`windmill-worker/src/ai_executor.rs`):
 
-1. Memory off, or a legacy `manual` memory: the history is `previous_messages`, else the `manual` list,
-   else nothing. Memory is neither read nor written, and a step `memory_id` is ignored.
-2. Managed memory: a step `previous_messages` is ignored. The memory id is the step's, else the run's, else
-   a legacy id baked into the `auto` object. With no memory id the agent runs stateless.
+1. Memory off, or a legacy `manual` memory: the history is `previous_messages`, else the `manual`
+   list, else nothing. Memory is neither read nor written, and a step `memory_id` is ignored.
+2. Managed memory: a step `previous_messages` is ignored. The memory id is the step's, else the
+   run's, else a legacy id baked into the `auto` object. With no memory id the agent runs
+   stateless.
 
 Each ignored input and each stateless fallback is written to the job log.
 

frontend/src/lib/components/flows/content/AgentMemoryNotes.svelte

@@ -7,8 +7,8 @@
 		 *  it moves into. */
 		args: Record<string, any>
 		chatInputEnabled?: boolean
-		/** Whether the step's own memory id and previous messages are on this form. A saved agent has neither:
-		 *  they belong to each step linking it. */
+		/** Whether the step's own memory id and previous messages are on this form. A saved agent has
+		 *  neither: they belong to each step linking it. */
 		historyOnStep?: boolean
 		s3StorageConfigured?: boolean
 	}

frontend/src/lib/components/flows/linkedAgentDrafts.ts

@@ -178,8 +178,9 @@ type AiAgentValue = Extract<FlowModule['value'], { type: 'aiagent' }>
  *
  * The overlay order is the worker's (`ai_executor.rs`): its linked branch interpolates the whole
  * resource brain and only then writes the flow-local inputs (`user_message`, `user_attachments`,
- * `enabled_tools`, `memory_id`, `previous_messages`) back from the step's own args. `tool_inputs` stays untouched — the worker overlays it onto the tools in both branches, so
- * an inlined step keeps the host flow's tool bindings.
+ * `enabled_tools`, `memory_id`, `previous_messages`) back from the step's own args. `tool_inputs`
+ * stays untouched — the worker overlays it onto the tools in both branches, so an inlined step
+ * keeps the host flow's tool bindings.
  */
 export function inlineAgentDraft(value: AiAgentValue, args: AIAgentConfig): AiAgentValue {
 	const { agent: _agent, ...rest } = value