Consolidate strategy types and remove unused imports

lib/core/strategies/deduplication.ts

@@ -1,5 +1,5 @@
 import { extractParameterKey } from "../../ui/display-utils"
-import type { PruningStrategy, StrategyResult, ToolMetadata } from "./types"
+import type { PruningStrategy, StrategyResult, ToolMetadata } from "./index"
 
 /**
  * Deduplication strategy - prunes older tool calls that have identical

lib/core/strategies/index.ts

@@ -2,10 +2,51 @@
  * Strategy runner - executes all enabled pruning strategies and collects results.
  */
 
-import type { PruningStrategy, StrategyResult, ToolMetadata } from "./types"
 import { deduplicationStrategy } from "./deduplication"
 
-export type { PruningStrategy, StrategyResult, ToolMetadata, StrategyDetail } from "./types"
+/**
+ * Common interface for rule-based pruning strategies.
+ * Each strategy analyzes tool metadata and returns IDs that should be pruned.
+ */
+
+export interface ToolMetadata {
+    tool: string
+    parameters?: any
+}
+
+export interface StrategyResult {
+    /** Tool call IDs that should be pruned */
+    prunedIds: string[]
+    /** Optional details about what was pruned and why */
+    details?: Map<string, StrategyDetail>
+}
+
+export interface StrategyDetail {
+    toolName: string
+    parameterKey: string
+    reason: string
+    /** Additional info specific to the strategy */
+    [key: string]: any
+}
+
+export interface PruningStrategy {
+    /** Unique identifier for this strategy */
+    name: string
+
+    /**
+     * Analyze tool metadata and determine which tool calls should be pruned.
+     * 
+     * @param toolMetadata - Map of tool call ID to metadata (tool name + parameters)
+     * @param unprunedIds - Tool call IDs that haven't been pruned yet (chronological order)
+     * @param protectedTools - Tool names that should never be pruned
+     * @returns IDs to prune and optional details
+     */
+    detect(
+        toolMetadata: Map<string, ToolMetadata>,
+        unprunedIds: string[],
+        protectedTools: string[]
+    ): StrategyResult
+}
 
 /** All available strategies */
 const ALL_STRATEGIES: PruningStrategy[] = [

lib/pruning-tool.ts

@@ -5,7 +5,7 @@ import type { ToolTracker } from "./fetch-wrapper/tool-tracker"
 import { resetToolTrackerCount } from "./fetch-wrapper/tool-tracker"
 import { isSubagentSession } from "./hooks"
 import { getActualId } from "./state/id-mapping"
-import { formatPruningResultForTool, sendUnifiedNotification, type NotificationContext } from "./ui/notification"
+import { sendUnifiedNotification, type NotificationContext } from "./ui/notification"
 import { ensureSessionRestored } from "./state"
 import { saveSessionState } from "./state/persistence"
 import type { Logger } from "./logger"
@@ -41,7 +41,7 @@ export function createPruningTool(
             ),
         },
         async execute(args, toolCtx) {
-            const { client, state, logger, config, notificationCtx, workingDirectory } = ctx
+            const { client, state, logger, config, notificationCtx } = ctx
             const sessionId = toolCtx.sessionID
 
             if (await isSubagentSession(client, sessionId)) {