fix(opencode): don't crash the whole session when plugins/lib is missing (#2538)

* fix(opencode): don't crash the whole session when plugins/lib is missing (#2530)

* fix: address review feedback (trailing newlines, symptom wording)

* fix(opencode): also lazy-load the store in ecc-hooks.ts plugin entrypoint

* test(opencode): add regression coverage for missing/present plugins/lib in ecc-hooks

* fix(opencode): guard diagnostic log() against unhandled rejection; tighten test assertion

* fix(opencode): only publish store after init succeeds; scrub loader errors from warning; catch sync log throws

* fix(opencode): scrub raw loader error from changed-files tool; add tool-level regression tests

* fix(ci): make OpenCode checks cross-platform

---------

Co-authored-by: haelyra <49814733+haelyra@users.noreply.github.com>

.opencode/plugins/ecc-hooks.ts

@@ -16,11 +16,6 @@
 import type { PluginInput } from "@opencode-ai/plugin"
 import * as fs from "fs"
 import * as path from "path"
-import {
-  initStore,
-  recordChange,
-  clearChanges,
-} from "./lib/changed-files-store.js"
 import changedFilesTool from "../tools/changed-files.js"
 import dependencyAnalyzerTool from "../tools/dependency-analyzer.js"
 
@@ -80,7 +75,6 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
   type HookProfile = "minimal" | "standard" | "strict"
 
   const worktreePath = worktree || directory
-  initStore(worktreePath)
 
   const editedFiles = new Set<string>()
 
@@ -110,6 +104,37 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
   const log = (level: "debug" | "info" | "warn" | "error", message: string) =>
     client.app.log({ body: { service: "ecc", level, message } })
 
+  // Loaded lazily (instead of via a top-level import) so that a missing or
+  // partially-installed `~/.opencode/plugins/lib` directory (e.g. an
+  // interrupted or partial ECC install on Termux/Android) only disables
+  // changed-files tracking, rather than throwing during module evaluation.
+  // This plugin is OpenCode's startup entry point, so a static import
+  // failure here previously crashed the whole plugin -- and with it, the
+  // entire OpenCode session -- before any hooks could load (see #2530).
+  let changedFilesStore: typeof import("./lib/changed-files-store.js") | undefined
+  try {
+    const store = await import("./lib/changed-files-store.js")
+    store.initStore(worktreePath)
+    changedFilesStore = store
+  } catch {
+    // Best-effort diagnostic only: deferred via .then() (rather than
+    // Promise.resolve(log(...))) so that even a *synchronous* throw inside
+    // log() -- not just an async rejection -- is caught here instead of
+    // escaping this catch block. The raw loader error is intentionally not
+    // included in the message since it can contain absolute filesystem
+    // paths; this whole block exists to guarantee startup resilience even
+    // when things go wrong.
+    Promise.resolve()
+      .then(() =>
+        log(
+          "warn",
+          "[ECC] changed-files tracking disabled: could not load the changed-files store. " +
+            "Run `ecc repair --target opencode` to restore the missing files. Other ECC hooks are unaffected."
+        )
+      )
+      .catch(() => {})
+  }
+
   const normalizeProfile = (value: string | undefined): HookProfile => {
     if (value === "minimal" || value === "strict") return value
     return "standard"
@@ -154,7 +179,7 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
      */
     "file.edited": async (event: { path: string }) => {
       editedFiles.add(event.path)
-      recordChange(event.path, "modified")
+      changedFilesStore?.recordChange(event.path, "modified")
 
       // Auto-format JS/TS files
       if (hookEnabled("post:edit:format", ["strict"]) && event.path.match(/\.(ts|tsx|js|jsx)$/)) {
@@ -198,16 +223,16 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
     ) => {
       const filePath = getFilePath(input.args)
       if (input.tool === "edit" && filePath) {
-        recordChange(filePath, "modified")
+        changedFilesStore?.recordChange(filePath, "modified")
       }
       if (input.tool === "write" && filePath) {
         const key = input.callID ?? `write-${++writeCounter}-${filePath}`
         const pending = pendingToolChanges.get(key)
         if (pending) {
-          recordChange(pending.path, pending.type)
+          changedFilesStore?.recordChange(pending.path, pending.type)
           pendingToolChanges.delete(key)
         } else {
-          recordChange(filePath, "modified")
+          changedFilesStore?.recordChange(filePath, "modified")
         }
       }
 
@@ -413,7 +438,7 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
       if (!hookEnabled("session:end-marker", ["minimal", "standard", "strict"])) return
       log("info", "[ECC] Session ended - cleaning up")
       editedFiles.clear()
-      clearChanges()
+      changedFilesStore?.clearChanges()
       pendingToolChanges.clear()
     },
 
@@ -428,7 +453,7 @@ export const ECCHooksPlugin: ECCHooksPluginFn = async ({
       let changeType: "added" | "modified" | "deleted" = "modified"
       if (event.type === "create" || event.type === "add") changeType = "added"
       else if (event.type === "delete" || event.type === "remove") changeType = "deleted"
-      recordChange(event.path, changeType)
+      changedFilesStore?.recordChange(event.path, changeType)
       if (event.type === "change" && event.path.match(/\.(ts|tsx|js|jsx)$/)) {
         editedFiles.add(event.path)
       }

.opencode/tools/changed-files.ts

@@ -1,11 +1,5 @@
 import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
-import {
-  buildTree,
-  getChangedPaths,
-  hasChanges,
-  type ChangeType,
-  type TreeNode,
-} from "../plugins/lib/changed-files-store.js"
+import type { ChangeType, TreeNode } from "../plugins/lib/changed-files-store.js"
 
 const INDICATORS: Record<ChangeType, string> = {
   added: "+",
@@ -26,6 +20,32 @@ function renderTree(nodes: TreeNode[], indent: string): string {
   return lines.join("\n")
 }
 
+// Loaded lazily (instead of via a top-level import) so that a missing or
+// partially-installed `~/.opencode/plugins` directory only breaks this one
+// tool when it's actually invoked, rather than throwing during module
+// evaluation. `tools/index.ts` re-exports every tool from a single barrel
+// file, so a static import failure here previously took down the entire
+// tools module -- and with it, the whole OpenCode session -- on the very
+// first tool-loading pass (see #2530).
+type ChangedFilesStore = typeof import("../plugins/lib/changed-files-store.js")
+let changedFilesStorePromise: Promise<ChangedFilesStore> | undefined
+
+async function loadChangedFilesStore(): Promise<ChangedFilesStore> {
+  if (!changedFilesStorePromise) {
+    changedFilesStorePromise = import("../plugins/lib/changed-files-store.js").catch(() => {
+      changedFilesStorePromise = undefined
+      throw new Error(
+        "changed-files tool: could not load the changed-files store. " +
+          "This usually means the ~/.opencode/plugins directory is missing or incomplete " +
+          "(an interrupted or partial ECC install can leave tools/ populated without plugins/). " +
+          "Run `node scripts/repair.js --target opencode` (or `ecc repair --target opencode`) " +
+          "from the ECC repo to restore the missing files."
+      )
+    })
+  }
+  return changedFilesStorePromise
+}
+
 const changedFilesTool: ToolDefinition = tool({
   description:
     "List files changed by agents in this session as a navigable tree. Shows added (+), modified (~), and deleted (-) indicators. Use filter to show only specific change types. Returns paths for git diff.",
@@ -40,6 +60,7 @@ const changedFilesTool: ToolDefinition = tool({
       .describe("Output format: tree for terminal display, json for structured data (default: tree)"),
   },
   async execute(args, context) {
+    const { buildTree, getChangedPaths, hasChanges } = await loadChangedFilesStore()
     const filter = args.filter === "all" || !args.filter ? undefined : (args.filter as ChangeType)
     const format = args.format ?? "tree"