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agent: pretty-print JSON command results

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Re-indents JSON output with 2-space indentation for better readability
in the terminal, while keeping non-JSON output unchanged.
This commit is contained in:
Adrià Arrufat
2026-05-30 23:12:54 +02:00
parent 2eb995e0ee
commit 58caf9faf7
1 changed files with 18 additions and 1 deletions
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19
src/agent/Agent.zig
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@@ -901,12 +901,29 @@ fn printCommandResult(self: *Agent, cmd: Command, result: browser_tools.ToolResu
else => return,
};
if (cmd.producesData() and !result.is_error) {
self.terminal.printAssistant(result.text);
self.printData(result.text);
return;
}
self.terminal.printToolOutcome(tc.name(), result.text, result.is_error);
}
// REPL-only: re-indent JSON output for the terminal. MCP keeps renderJson's
// compact form. Non-JSON output (markdown, tree, urls) prints unchanged.
fn printData(self: *Agent, text: []const u8) void {
const trimmed = std.mem.trimLeft(u8, text, &std.ascii.whitespace);
if (trimmed.len > 0 and (trimmed[0] == '{' or trimmed[0] == '[')) {
if (std.json.parseFromSlice(std.json.Value, self.allocator, text, .{})) |parsed| {
defer parsed.deinit();
if (std.json.Stringify.valueAlloc(self.allocator, parsed.value, .{ .whitespace = .indent_2 })) |pretty| {
defer self.allocator.free(pretty);
self.terminal.printAssistant(pretty);
return;
} else |_| {}
} else |_| {}
}
self.terminal.printAssistant(text);
}
fn runScript(self: *Agent, path: []const u8) bool {
self.terminal.printInfo("Running script: {s}", .{path});