co-mono/packages/coding-agent/src/tools/read.ts
Mario Zechner 159075cad7 Improve tool execution rendering and error handling
- Show tool execution components immediately when tool calls appear in streaming
- Update components with streaming arguments as they come in
- Handle incomplete/partial arguments gracefully with optional chaining
- Fix error handling: tools now throw exceptions instead of returning error messages
- Fix bash abort handling to properly reject on abort/timeout
- Clean up error display
2025-11-11 23:05:58 +01:00

39 lines
1.1 KiB
TypeScript

import * as os from "node:os";
import type { AgentTool } from "@mariozechner/pi-ai";
import { Type } from "@sinclair/typebox";
import { existsSync, readFileSync } from "fs";
import { resolve } from "path";
/**
* Expand ~ to home directory
*/
function expandPath(filePath: string): string {
if (filePath === "~") {
return os.homedir();
}
if (filePath.startsWith("~/")) {
return os.homedir() + filePath.slice(1);
}
return filePath;
}
const readSchema = Type.Object({
path: Type.String({ description: "Path to the file to read (relative or absolute)" }),
});
export const readTool: AgentTool<typeof readSchema> = {
name: "read",
label: "read",
description: "Read the contents of a file. Returns the full file content as text.",
parameters: readSchema,
execute: async (_toolCallId: string, { path }: { path: string }) => {
const absolutePath = resolve(expandPath(path));
if (!existsSync(absolutePath)) {
throw new Error(`File not found: ${path}`);
}
const content = readFileSync(absolutePath, "utf-8");
return { output: content, details: undefined };
},
};