From 44e95065c4f51b633791c331ce4f452f1fc7fb86 Mon Sep 17 00:00:00 2001
From: Vincent Koc <vincentkoc@ieee.org>
Date: Sun, 12 Apr 2026 00:13:11 +0100
Subject: [PATCH] fix(agents): split preemptive compaction route types

---
 .../pi-embedded-runner/run/preemptive-compaction.ts       | 8 ++------
 .../pi-embedded-runner/run/preemptive-compaction.types.ts | 5 +++++
 src/agents/pi-embedded-runner/run/types.ts                | 2 +-
 3 files changed, 8 insertions(+), 7 deletions(-)
 create mode 100644 src/agents/pi-embedded-runner/run/preemptive-compaction.types.ts

diff --git a/src/agents/pi-embedded-runner/run/preemptive-compaction.ts b/src/agents/pi-embedded-runner/run/preemptive-compaction.ts
index e0cf8073f33..a1baa6487c2 100644
--- a/src/agents/pi-embedded-runner/run/preemptive-compaction.ts
+++ b/src/agents/pi-embedded-runner/run/preemptive-compaction.ts
@@ -2,18 +2,14 @@ import type { AgentMessage } from "@mariozechner/pi-agent-core";
 import { estimateTokens } from "@mariozechner/pi-coding-agent";
 import { SAFETY_MARGIN, estimateMessagesTokens } from "../../compaction.js";
 import { estimateToolResultReductionPotential } from "../tool-result-truncation.js";
+import type { PreemptiveCompactionRoute } from "./preemptive-compaction.types.js";
 
 export const PREEMPTIVE_OVERFLOW_ERROR_TEXT =
   "Context overflow: prompt too large for the model (precheck).";
 
 const ESTIMATED_CHARS_PER_TOKEN = 4;
 const TRUNCATION_ROUTE_BUFFER_TOKENS = 512;
-
-export type PreemptiveCompactionRoute =
-  | "fits"
-  | "compact_only"
-  | "truncate_tool_results_only"
-  | "compact_then_truncate";
+export type { PreemptiveCompactionRoute } from "./preemptive-compaction.types.js";
 
 export function estimatePrePromptTokens(params: {
   messages: AgentMessage[];
diff --git a/src/agents/pi-embedded-runner/run/preemptive-compaction.types.ts b/src/agents/pi-embedded-runner/run/preemptive-compaction.types.ts
new file mode 100644
index 00000000000..f1bb114e635
--- /dev/null
+++ b/src/agents/pi-embedded-runner/run/preemptive-compaction.types.ts
@@ -0,0 +1,5 @@
+export type PreemptiveCompactionRoute =
+  | "fits"
+  | "compact_only"
+  | "truncate_tool_results_only"
+  | "compact_then_truncate";
diff --git a/src/agents/pi-embedded-runner/run/types.ts b/src/agents/pi-embedded-runner/run/types.ts
index f6b19f125e9..c69b606bcf2 100644
--- a/src/agents/pi-embedded-runner/run/types.ts
+++ b/src/agents/pi-embedded-runner/run/types.ts
@@ -11,7 +11,7 @@ import type { NormalizedUsage } from "../../usage.js";
 import type { EmbeddedRunReplayMetadata, EmbeddedRunReplayState } from "../replay-state.js";
 import type { EmbeddedRunLivenessState } from "../types.js";
 import type { RunEmbeddedPiAgentParams } from "./params.js";
-import type { PreemptiveCompactionRoute } from "./preemptive-compaction.js";
+import type { PreemptiveCompactionRoute } from "./preemptive-compaction.types.js";
 
 type EmbeddedRunAttemptBase = Omit<
   RunEmbeddedPiAgentParams,