fix: reset compress-pending manual mode after compression

After /dcp-compress, finalizeSession must not treat compress-pending as
active manual mode, which permanently blocked automatic compression.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: LHMQ878

lib/compress/pipeline.ts

@@ -85,7 +85,7 @@ export async function finalizeSession(
     entries: NotificationEntry[],
     batchTopic: string | undefined,
 ): Promise<void> {
-    ctx.state.manualMode = ctx.state.manualMode ? "active" : false
+    ctx.state.manualMode = ctx.state.manualMode === "active" ? "active" : false
     applyPendingCompressionDurations(ctx.state)
     await saveSessionState(ctx.state, ctx.logger)
 

tests/finalize-session.test.ts

@@ -0,0 +1,96 @@
+import assert from "node:assert/strict"
+import test from "node:test"
+import { finalizeSession } from "../lib/compress/pipeline"
+import type { PluginConfig } from "../lib/config"
+import { Logger } from "../lib/logger"
+import {
+    createSessionState,
+    loadManualModeSetting,
+    type WithParts,
+} from "../lib/state"
+
+function buildConfig(): PluginConfig {
+    return {
+        enabled: true,
+        debug: false,
+        pruneNotification: "off",
+        pruneNotificationType: "chat",
+        commands: { enabled: true, protectedTools: [] },
+        manualMode: { enabled: false, automaticStrategies: true },
+        turnProtection: { enabled: false, turns: 4 },
+        experimental: { allowSubAgents: false, customPrompts: false },
+        protectedFilePatterns: [],
+        compress: {
+            mode: "message",
+            permission: "allow",
+            showCompression: false,
+            maxContextLimit: 150000,
+            minContextLimit: 50000,
+            nudgeFrequency: 5,
+            iterationNudgeThreshold: 15,
+            nudgeForce: "soft",
+            protectedTools: ["task"],
+            protectTags: false,
+            protectUserMessages: false,
+        },
+        strategies: {
+            deduplication: { enabled: true, protectedTools: [] },
+            purgeErrors: { enabled: true, turns: 4, protectedTools: [] },
+        },
+    } as PluginConfig
+}
+
+function buildToolContext(state: ReturnType<typeof createSessionState>) {
+    return {
+        client: { session: { get: async () => ({}) } },
+        state,
+        logger: new Logger(false),
+        config: buildConfig(),
+        prompts: {
+            reload() {},
+            getRuntimePrompts() {
+                return {} as any
+            },
+        },
+    }
+}
+
+test("finalizeSession resets compress-pending to auto mode", async () => {
+    const sessionId = `finalize-compress-pending-${Date.now()}`
+    const state = createSessionState()
+    state.sessionId = sessionId
+    state.manualMode = "compress-pending"
+
+    await finalizeSession(
+        buildToolContext(state) as any,
+        { sessionID: sessionId, metadata: () => {}, ask: async () => {} },
+        [] as WithParts[],
+        [],
+        undefined,
+    )
+
+    assert.equal(state.manualMode, false)
+
+    const persisted = await loadManualModeSetting(sessionId, new Logger(false))
+    assert.equal(persisted, false)
+})
+
+test("finalizeSession preserves explicit active manual mode", async () => {
+    const sessionId = `finalize-active-manual-${Date.now()}`
+    const state = createSessionState()
+    state.sessionId = sessionId
+    state.manualMode = "active"
+
+    await finalizeSession(
+        buildToolContext(state) as any,
+        { sessionID: sessionId, metadata: () => {}, ask: async () => {} },
+        [] as WithParts[],
+        [],
+        undefined,
+    )
+
+    assert.equal(state.manualMode, "active")
+
+    const persisted = await loadManualModeSetting(sessionId, new Logger(false))
+    assert.equal(persisted, true)
+})