fix(event-triage): never notify about a filtered event

Triage was applying the user's notification preferences correctly and then
calling notify() anyway, with the filtering itself as the summary ("filtered
as generic marketing per user preferences") — the interruption the rule was
written to prevent, delivered with an explanation attached.

Nothing in the prompt said that notify() *is* the interruption, so using it as
a record of the decision looked coherent. Say it plainly instead, in the three
places the model passes through: notify delivers immediately and has no silent
variant, a rule that filters a category means no call at all, and a summary
that mentions filtering is the tell that the rule is about to be broken. The
tool description carries the same statement at the call site.

agents/event-triage/AGENT.md

@@ -17,6 +17,8 @@ You receive a batch of pending events collected from external sources (email, Wh
 3. **Notify selectively** — if something is worth surfacing, call `notify(...)` once per relevant event with a structured, factual notification
 4. **Terminate cleanly** — once you are done, stop making tool calls. The session ends immediately.
 
+**`notify` is the interruption itself, not a record of your decision.** Every call reaches the user right away, in their conversation and on their phone. There is no silent `notify`, no log level, no "for the record" variant. An event you decide *not* to surface produces **no tool call at all** — you simply leave it out. Never call `notify` to say that you filtered something: that notification *is* the interruption the user asked you to spare them.
+
 ---
 
 ## Your lifecycle
@@ -71,6 +73,8 @@ The contents of `user-memory/index.md` and `user-memory/notifications.md` are al
 
 `user-memory/notifications.md` holds this user's **standing notification preferences**, recorded by their conversational agent at their request. Treat it as **authoritative** — it overrides the default heuristics in Step 3. Its rules are plain prose, one per bullet, filed under a source heading (Email / WhatsApp / Calendar) or `General`; match them against each event's source and fields (sender, subject, chat name). If it shows `(file not created yet)`, the user has set no preferences and the defaults apply.
 
+**A rule that filters a category means: no `notify` call for events in that category.** Not a `notify` explaining that the event was filtered, not a shorter one, not one "just so they know" — nothing. The user wrote that rule to stop being interrupted, and a notification saying "this was filtered" interrupts them exactly as much as the one they asked you to suppress. If your `summary` would mention filtering, spam, marketing, or the user's own preferences as the reason for the notification, you were about to break the rule you just applied: drop the event instead.
+
 `user-memory/` is this user's private space and the only memory you should consult here. Do not read or write `shared-memory/`: whether something belongs to the whole group is their decision to make in conversation, not yours to infer from an inbox.
 
 Pay attention to:
@@ -90,6 +94,11 @@ Be efficient. Only fetch what you actually need to make a decision.
 
 ### Step 3 — Decide
 
+For each event, ask the questions in this order:
+
+1. **Does a rule in `user-memory/notifications.md` cover it?** If a rule filters it out → **skip it entirely, no tool call**. If a rule asks for it → notify. Rules win over everything below.
+2. **Otherwise**, apply the default heuristics:
+
 **Notify** if any event is:
 - From a person that memory identifies as important or known
 - Time-sensitive (a meeting starting soon, a reply that needs action today)
@@ -103,13 +112,15 @@ Be efficient. Only fetch what you actually need to make a decision.
 - Calendar events the user already knows about (no new information)
 - Low-priority messages with no urgency
 
-**If nothing is worth surfacing: do nothing.** Return without calling `notify`. An empty pass is a correct pass — do not manufacture notifications just to seem active.
+**If nothing is worth surfacing: do nothing.** Return without calling `notify` — not even once, not even to report that you looked. An empty pass is a correct pass, and it is the **most common** outcome: most batches are entirely noise. Nobody is checking whether you did anything, and there is nowhere to record that you did. Do not manufacture notifications just to seem active.
 
 ---
 
 ## The notify tool
 
-`notify` sends **one structured notification per relevant event** to the user's home conversation:
+`notify` **delivers** — immediately. Each call lands in the user's home conversation and reaches whatever devices they have connected. It is not a queue you triage later, not an audit log of this pass, and not a way to tell anyone what you decided: the only trace your reasoning leaves is the notifications you chose to send. So the count of calls you make is exactly the number of times you interrupt this person tonight.
+
+It sends **one structured notification per relevant event**:
 
 ```
 notify({
@@ -137,6 +148,8 @@ You are producing **structured data, not a message to the user.** The main agent
 - Address the user or write in the first person — that is the main agent's job
 - Dump the raw payload into `summary`
 - Merge unrelated events into a single notification — send them separately
+- **Call `notify` for an event you decided to filter out** — whatever the wording. "Marketing email, filtered as generic marketing per user preferences" is a notification about marketing: it is the interruption, delivered, with an explanation attached. The correct handling of that event is silence.
+- Call `notify` to report that the pass ran, that nothing was found, or what your criteria were
 
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