fix: use ctx.directory instead of process.cwd() in tools for Desktop app support

Convert grep, glob, ast-grep, and session-manager tools from static exports to factory functions that receive PluginInput context. This allows them to use ctx.directory instead of process.cwd(), fixing issue #658 where tools search from wrong directory in OpenCode Desktop app.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/glob/index.ts

@@ -1,3 +1 @@
-import { glob } from "./tools"
-
-export { glob }
+export { createGlobTools } from "./tools"

src/tools/glob/tools.ts

@@ -1,43 +1,47 @@
+import type { PluginInput } from "@opencode-ai/plugin"
 import { tool, type ToolDefinition } from "@opencode-ai/plugin/tool"
 import { runRgFiles } from "./cli"
 import { resolveGrepCliWithAutoInstall } from "./constants"
 import { formatGlobResult } from "./utils"
 
-export const glob: ToolDefinition = tool({
-  description:
-    "Fast file pattern matching tool with safety limits (60s timeout, 100 file limit). " +
-    "Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\". " +
-    "Returns matching file paths sorted by modification time. " +
-    "Use this tool when you need to find files by name patterns.",
-  args: {
-    pattern: tool.schema.string().describe("The glob pattern to match files against"),
-    path: tool.schema
-      .string()
-      .optional()
-      .describe(
-        "The directory to search in. If not specified, the current working directory will be used. " +
-          "IMPORTANT: Omit this field to use the default directory. DO NOT enter \"undefined\" or \"null\" - " +
-          "simply omit it for the default behavior. Must be a valid directory path if provided."
-      ),
-  },
-  execute: async (args) => {
-    try {
-      const cli = await resolveGrepCliWithAutoInstall()
-      // Use process.cwd() as the default search path when no path is provided
-      const searchPath = args.path ?? process.cwd()
-      const paths = [searchPath]
+export function createGlobTools(ctx: PluginInput): Record<string, ToolDefinition> {
+  const glob: ToolDefinition = tool({
+    description:
+      "Fast file pattern matching tool with safety limits (60s timeout, 100 file limit). " +
+      "Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\". " +
+      "Returns matching file paths sorted by modification time. " +
+      "Use this tool when you need to find files by name patterns.",
+    args: {
+      pattern: tool.schema.string().describe("The glob pattern to match files against"),
+      path: tool.schema
+        .string()
+        .optional()
+        .describe(
+          "The directory to search in. If not specified, the current working directory will be used. " +
+            "IMPORTANT: Omit this field to use the default directory. DO NOT enter \"undefined\" or \"null\" - " +
+            "simply omit it for the default behavior. Must be a valid directory path if provided."
+        ),
+    },
+    execute: async (args) => {
+      try {
+        const cli = await resolveGrepCliWithAutoInstall()
+        const searchPath = args.path ?? ctx.directory
+        const paths = [searchPath]
 
-      const result = await runRgFiles(
-        {
-          pattern: args.pattern,
-          paths,
-        },
-        cli
-      )
+        const result = await runRgFiles(
+          {
+            pattern: args.pattern,
+            paths,
+          },
+          cli
+        )
 
-      return formatGlobResult(result)
-    } catch (e) {
-      return `Error: ${e instanceof Error ? e.message : String(e)}`
-    }
-  },
-})
+        return formatGlobResult(result)
+      } catch (e) {
+        return `Error: ${e instanceof Error ? e.message : String(e)}`
+      }
+    },
+  })
+
+  return { glob }
+}