A record may leave its lists some time after reaching a state: leaves_after

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt

src/trainer/build.rs

@@ -440,6 +440,12 @@ pub struct PlanNeed {
     /// own it.
     #[serde(default)]
     pub one_per_person: bool,
+    /// How long a record stays in the lists once it reaches a stage,
+    /// when not for ever: `{ sluttet: { minutes: 10 } }` takes a card
+    /// off the desk's list ten minutes after it came off the front
+    /// page, instead of leaving it there greyed out.
+    #[serde(default)]
+    pub leaves_after: BTreeMap<String, crate::aggregates::LeavesSpec>,
     pub collects: Vec<Field>,
     /// How many required fields this person will tolerate: what the
     /// business said about them, not what the form happens to ask.
@@ -763,6 +769,12 @@ impl Plan {
                     bail!(at(&format!("deadline on {state:?} goes to {:?}, which is not a move the state machine has from there", d.to)));
                 }
             }
+            if let Some(bad) = need.leaves_after.keys().find(|st| !need.stages.contains(st)) {
+                bail!(at(&format!("leaves_after names {bad:?}, which is not one of its stages")));
+            }
+            if need.leaves_after.values().any(|l| l.millis() == 0) {
+                bail!(at("leaves_after needs some days, hours or minutes"));
+            }
             if need.one_per_person && need.enters_as.is_none() {
                 bail!(at("one_per_person keeps a card for each signed-in person, and the need has no enters_as to sign them in"));
             }
@@ -2059,6 +2071,9 @@ pub fn render(plan: &Plan, words: &BTreeMap<String, Value>) -> anyhow::Result<BT
                     if let Some(d) = need.deadlines.get(st) {
                         state["after"] = json!({ "days": d.days, "to": d.to });
                     }
+                    if let Some(leaves) = need.leaves_after.get(st) {
+                        state["leaves_after"] = json!(leaves);
+                    }
                     (st.clone(), state)
                 }).collect::<Map<_, _>>(),
                 "transitions": machine(need),
@@ -2720,7 +2735,7 @@ mod tests {
             stages: v(stages), done_when: v(done), success: v(success), skippable: v(skippable),
             moves_by: BTreeMap::new(), watched_by: vec![],
             events: BTreeMap::new(), attended_by: None, mails: BTreeMap::new(), stages_text: BTreeMap::new(), turned_down_from: vec![], reached_from: BTreeMap::new(), requires: String::new(), followed_by: vec![],
-            grants: BTreeMap::new(), deadlines: BTreeMap::new(), escalate: BTreeMap::new(), public_states: vec![], presents: false, paused: false, one_per_person: false,
+            grants: BTreeMap::new(), deadlines: BTreeMap::new(), escalate: BTreeMap::new(), public_states: vec![], presents: false, paused: false, one_per_person: false, leaves_after: BTreeMap::new(),
             collects: vec![], max_fields: 3,
         }
     }

src/trainer/plan.rs

@@ -196,6 +196,11 @@ rest. Each is one line in the plan, and the builder does the wiring:
   their own, which the form opens with and which sending again
   replaces - a card on the front page they edit themselves. A picture
   left unchosen stays as it was.
+- **Let finished things go.** `leaves_after: { <stage>: { minutes: 10 } }`
+  takes a record out of every list that long after it reaches that
+  stage (days, hours and minutes add up). A card taken off the front
+  page need not stand greyed out on the desk for ever; the history
+  keeps it.
 - **Pause what you cannot take on.** `paused: true` on a need keeps
   its card on the page, saying what the business does and that it is
   not taking new ones right now, with no form and a button that does