fix full-suite isolation regressions

src/hooks/write-existing-file-guard/hook.ts

@@ -3,9 +3,7 @@ import type { Hooks, PluginInput } from "@opencode-ai/plugin"
 import { existsSync, realpathSync } from "fs"
 import { basename, dirname, isAbsolute, join, normalize, relative, resolve } from "path"
 
-import { log } from "../../shared"
 import { handleWriteExistingFileGuardToolExecuteBefore } from "./tool-execute-before-handler"
-import { evictLeastRecentlyUsedSession, touchSession, trimSessionReadSet } from "./session-read-permissions"
 
 export type GuardArgs = {
   filePath?: string
@@ -16,7 +14,11 @@ export type GuardArgs = {
 
 const MAX_TRACKED_SESSIONS = 256
 export const MAX_TRACKED_PATHS_PER_SESSION = 1024
-const BLOCK_MESSAGE = "File already exists. Use edit tool instead."
+
+type WriteExistingFileGuardOptions = {
+  maxTrackedSessions?: number
+  maxTrackedPathsPerSession?: number
+}
 
 export function asRecord(value: unknown): Record<string, unknown> | undefined {
   if (!value || typeof value !== "object" || Array.isArray(value)) {
@@ -73,9 +75,11 @@ export function isOverwriteEnabled(value: boolean | string | undefined): boolean
   return false
 }
 
-export function createWriteExistingFileGuardHook(ctx: PluginInput): Hooks {
+export function createWriteExistingFileGuardHook(ctx: PluginInput, options?: WriteExistingFileGuardOptions): Hooks {
   const readPermissionsBySession = new Map<string, Set<string>>()
   const sessionLastAccess = new Map<string, number>()
+  const maxTrackedSessions = options?.maxTrackedSessions ?? MAX_TRACKED_SESSIONS
+  const maxTrackedPathsPerSession = options?.maxTrackedPathsPerSession ?? MAX_TRACKED_PATHS_PER_SESSION
   let canonicalSessionRoot: string | undefined
 
   function getCanonicalSessionRoot(): string {
@@ -95,7 +99,8 @@ export function createWriteExistingFileGuardHook(ctx: PluginInput): Hooks {
         readPermissionsBySession,
         sessionLastAccess,
         getCanonicalSessionRoot,
-        maxTrackedSessions: MAX_TRACKED_SESSIONS,
+        maxTrackedSessions,
+        maxTrackedPathsPerSession,
       })
     },
     event: async ({ event }: { event: { type: string; properties?: unknown } }) => {