profiler end to end

✓ Passing This code compiles and runs correctly.

Code

// Pins the runtime profiler end-to-end: [profile]import + --profile produces
// a valid Chrome Tracing file capturing the program's real transitions, while
// the profiler's own write-* events stay invisible (opaque taps).
~import std/io
~[profile]import std/profiler

~pub tor get-number {} -> i32

~proc get-number|zig {
    return 42;
}

~get-number(): n |> std/io:print.ln("Got number: {{ n:d }}")

input.kz

Supporting Files

UnsupportedConstruct

CS_REFUSES

~proc get-number|cs {
    return 42;
}

input.kcs

Actual · Zig

✓ pass

Got number: 42

Actual · C#

✗ UnsupportedConstruct

Expected output

✓ Zig✗ C#

Got number: 42

Emitted Zig source

// Access compiler flags via the per-user compiler_env module
const CompilerEnv = @import("compiler_env").CompilerEnv;

pub const panic = if (@import("builtin").mode == .Debug)
    @import("std").debug.FullPanic(@import("std").debug.defaultPanic)
else
    @import("std").debug.simple_panic;


const __koru_bare = struct {
    extern fn posix_memalign(memptr: *?*anyopaque, alignment: usize, size: usize) c_int;
    extern fn free(ptr: ?*anyopaque) void;
    fn bareAlloc(_: *anyopaque, len: usize, alignment: @import("std").mem.Alignment, _: usize) ?[*]u8 {
        var p: ?*anyopaque = null;
        const a = @max(alignment.toByteUnits(), @sizeOf(usize));
        if (posix_memalign(&p, a, len) != 0) return null;
        return @ptrCast(p);
    }
    fn bareResize(_: *anyopaque, _: []u8, _: @import("std").mem.Alignment, _: usize, _: usize) bool { return false; }
    fn bareRemap(_: *anyopaque, _: []u8, _: @import("std").mem.Alignment, _: usize, _: usize) ?[*]u8 { return null; }
    fn bareFree(_: *anyopaque, memory: []u8, _: @import("std").mem.Alignment, _: usize) void { free(@ptrCast(memory.ptr)); }
    const vtable = @import("std").mem.Allocator.VTable{ .alloc = bareAlloc, .resize = bareResize, .remap = bareRemap, .free = bareFree };
    const allocator = @import("std").mem.Allocator{ .ptr = undefined, .vtable = &vtable };
};
const __koru_backing = if (@import("builtin").link_libc) @import("std").heap.c_allocator else if (@import("builtin").os.tag == .freestanding and !@import("builtin").cpu.arch.isWasm()) __koru_bare.allocator else @import("std").heap.page_allocator;
var __koru_leak_count: @import("std").atomic.Value(usize) = .init(0);
var __koru_par_tasks: @import("std").atomic.Value(usize) = .init(0);
const __koru_par_CAP: usize = 128;
threadlocal var __koru_par_depth: usize = 0;
const __koru_par_DEPTH_CAP: usize = 7;
var __koru_par_pool: @import("std").Thread.Pool = undefined;
var __koru_par_pool_ready: bool = false;
var __koru_par_pool_mtx: @import("std").Thread.Mutex = .{};
fn __koru_par_pool_ensure() *@import("std").Thread.Pool {
    __koru_par_pool_mtx.lock();
    defer __koru_par_pool_mtx.unlock();
    if (!__koru_par_pool_ready) {
        @import("std").Thread.Pool.init(&__koru_par_pool, .{ .allocator = @import("std").heap.smp_allocator }) catch @panic("koru: thread pool init failed");
        __koru_par_pool_ready = true;
    }
    return &__koru_par_pool;
}
fn __koru_alloc(ctx: *anyopaque, len: usize, alignment: @import("std").mem.Alignment, ret_addr: usize) ?[*]u8 {
    _ = ctx;
    const r = __koru_backing.rawAlloc(len, alignment, ret_addr);
    if (comptime @import("builtin").mode == .Debug) {
        if (r != null) _ = __koru_leak_count.fetchAdd(1, .monotonic);
    }
    return r;
}
fn __koru_resize(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, new_len: usize, ret_addr: usize) bool {
    _ = ctx;
    return __koru_backing.rawResize(memory, alignment, new_len, ret_addr);
}
fn __koru_remap(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, new_len: usize, ret_addr: usize) ?[*]u8 {
    _ = ctx;
    return __koru_backing.rawRemap(memory, alignment, new_len, ret_addr);
}
fn __koru_free(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, ret_addr: usize) void {
    _ = ctx;
    __koru_backing.rawFree(memory, alignment, ret_addr);
    if (comptime @import("builtin").mode == .Debug) {
        _ = __koru_leak_count.fetchSub(1, .monotonic);
    }
}
const __koru_vtable = @import("std").mem.Allocator.VTable{ .alloc = __koru_alloc, .resize = __koru_resize, .remap = __koru_remap, .free = __koru_free };
pub fn koru_allocator() @import("std").mem.Allocator {
    return .{ .ptr = undefined, .vtable = &__koru_vtable };
}

pub inline fn __koru_intcast(comptime T: type, x: anytype) T {
    if (comptime (@import("builtin").mode == .Debug or @import("builtin").mode == .ReleaseSafe))
        return @as(T, @intCast(x));
    const dst = @typeInfo(T);
    const src = @typeInfo(@TypeOf(x));
    if (comptime (dst == .int and src == .int and dst.int.bits == src.int.bits and dst.int.signedness != src.int.signedness))
        return @as(T, @bitCast(x));
    return @as(T, @intCast(x));
}

fn __KoruPadI(comptime T: type) type {
    const V = switch (@typeInfo(T)) { .comptime_int => i64, .comptime_float => f64, else => T };
    return struct {
        v: V,
        width: usize,
        pub fn format(self: @This(), w: *@import("std").Io.Writer) @import("std").Io.Writer.Error!void {
            const rendered = @import("std").fmt.count("{d}", .{self.v});
            const pad = self.width -| rendered;
            for (0..pad) |_| try w.writeByte(' ');
            try w.print("{d}", .{self.v});
        }
    };
}
pub fn __koru_pad_i(width: usize, value: anytype) __KoruPadI(@TypeOf(value)) {
    return .{ .v = value, .width = width };
}

pub fn koru_leak_check() void {
    if (comptime @import("builtin").mode != .Debug) return;
    if (__koru_leak_count.load(.acquire) == 0) return;
    if (comptime @import("builtin").target.os.tag == .freestanding) {
        if (comptime @import("builtin").cpu.arch == .wasm32 or @import("builtin").cpu.arch == .wasm64) {
            @panic("KORU LEAK CHECK FAILED: the produced program leaked");
        } else {
            const __klc = struct { extern var stdout: ?*anyopaque; extern fn fputs(__s: [*:0]const u8, __st: ?*anyopaque) c_int; };
            var __lb: [128]u8 = undefined;
            const __lm = "KORU LEAK CHECK FAILED: allocations still outstanding at end of run: ";
            @memcpy(__lb[0..__lm.len], __lm);
            var __ln: usize = __lm.len;
            var __lv = __koru_leak_count.load(.acquire);
            var __ld: [20]u8 = undefined;
            var __lk: usize = 0;
            while (__lv > 0) : (__lk += 1) { __ld[__lk] = @intCast('0' + __lv % 10); __lv /= 10; }
            for (0..__lk) |__li| { __lb[__ln] = __ld[__lk - 1 - __li]; __ln += 1; }
            __lb[__ln] = '\n'; __ln += 1; __lb[__ln] = 0;
            _ = __klc.fputs(@as([*:0]const u8, @ptrCast(&__lb)), __klc.stdout);
            @trap();
        }
    } else {
        @import("std").debug.print("KORU LEAK CHECK FAILED: the produced program leaked (trace above)\n", .{});
        @import("std").process.exit(1);
    }
}

pub const main_module = struct {
    pub const get_number_event = struct {
        pub const Input = struct {
        };
        pub const Output = i32;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: get_number  [tests/regression/300_ADVANCED_FEATURES/360_TAPS_OBSERVERS/510_profiler_end_to_end/input.kz:10]
            _ = &__koru_event_input;

                return 42;

        }
    };
    // >>> FLOW: tests/regression/300_ADVANCED_FEATURES/360_TAPS_OBSERVERS/510_profiler_end_to_end/input.kz:14  ~input:get_number()
    pub fn flow0() void {
        const n = main_module.get_number_event.handler(.{  });
        {
            const _profile_e2c2f698566c0fc1_2 = taps.Profile{
                .source = "input:get-number",
                .destination = "std.io:print.ln",
                .branch = "result",
                .timestamp_ns = __koru_std.time.nanoTimestamp(),
            };
            _ = &_profile_e2c2f698566c0fc1_2;
            const result_1 = koru_std.koru_profiler.write_event_event.handler(.{ .source = _profile_e2c2f698566c0fc1_2.source, .timestamp_ns = _profile_e2c2f698566c0fc1_2.timestamp_ns });
            _ = &result_1;
            (struct { fn __kout(__fd: i32, __b: []const u8) void { if (@import("builtin").os.tag == .freestanding) { const __kc = struct { extern var stdout: ?*anyopaque; extern var stderr: ?*anyopaque; extern fn fputs(__s: [*:0]const u8, __st: ?*anyopaque) c_int; }; var __kt: [4096]u8 = undefined; for (0..(__b.len + __kt.len - 2) / (__kt.len - 1)) |__ki| { const __kn = @min(__kt.len - 1, __b.len - __ki * (__kt.len - 1)); @memcpy(__kt[0..__kn], __b[__ki * (__kt.len - 1)..][0..__kn]); __kt[__kn] = 0; @import("std").mem.doNotOptimizeAway(__kc.fputs(@as([*:0]const u8, @ptrCast(&__kt)), if (__fd == 2) __kc.stderr else __kc.stdout)); } } else { @import("std").mem.doNotOptimizeAway(@import("std").posix.write(__fd, __b) catch @as(usize, 0)); } } fn __kw(comptime __f: []const u8, __a: anytype) void { var __kb: [65536]u8 = undefined; const __ks = @import("std").fmt.bufPrint(&__kb, __f, __a) catch __kb[0..0]; __kout(1, __ks); } }).__kw("Got number: {d}\n", .{n});
            {
                const _profile_e2c2f698566c0fc1_3 = taps.Profile{
                    .source = "std.io:print.ln",
                    .destination = null,
                    .branch = "__void",
                    .timestamp_ns = __koru_std.time.nanoTimestamp(),
                };
                _ = &_profile_e2c2f698566c0fc1_3;
                const result_2 = koru_std.koru_profiler.write_event_event.handler(.{ .source = _profile_e2c2f698566c0fc1_3.source, .timestamp_ns = _profile_e2c2f698566c0fc1_3.timestamp_ns });
                _ = &result_2;
            }
        }
    }
    pub fn koru_start_flow() void {
        const result_0 = koru_koru.start_event.handler(.{  });
        const result_0_done = result_0.done;
        _ = &result_0_done;
        const result_1 = koru_std.koru_profiler.write_header_event.handler(.{  });
        _ = &result_1;
    }
    pub fn koru_end_flow() void {
        const result_0 = koru_koru.end_event.handler(.{  });
        const result_0_done = result_0.done;
        _ = &result_0_done;
        const result_1 = koru_std.koru_profiler.write_footer_event.handler(.{  });
        _ = &result_1;
    }
};

pub const koru_std = struct {
    pub const koru_profiler = struct {
        const std = @import("std");
        var profile_file: ?std.fs.File = null;
        var first_event: bool = true;
        var previous_timestamp_ns: i128 = 0;
        var previous_event_name: []const u8 = "";
        var profiler_finished: bool = false;  // Prevents write-event from creating new file after footer
        var program_start_ns: i128 = 0;       // Envelope open (koru:start anchor); footer synthesizes the span from it
        pub const write_header_event = struct {
            pub const Input = struct {
            };
            pub const Output = void;
            pub fn handler(__koru_event_input: @This().Input) @This().Output {
                // >>> PROC: write_header  [/Users/larsde/src/koru/koru_std/profiler.kz:40]
                _ = &__koru_event_input;

                    // Only create file if not already created by write-event
                    // (write-event runs BEFORE write-header due to universal tap ordering)
                    if (profile_file == null) {
                        profile_file = std.fs.cwd().createFile(std.posix.getenv("KORU_PROFILE_PATH") orelse "/tmp/koru_profile.json", .{}) catch {
                            std.debug.print("ERROR: Failed to create profile file\n", .{});
                            return;
                        };

                        // Write Chrome Tracing JSON header
                        const header = "{\"traceEvents\":[\n";
                        profile_file.?.writeAll(header) catch {
                            std.debug.print("ERROR: Failed to write profile header\n", .{});
                        };
                    }

                    // Initialize profiler state for new trace (only if not already started)
                    // Don't reset if previous_timestamp_ns is set - that means we already buffered an tor
                    // (the universal tap wraps koru:start -> done BEFORE write-header fires)
                    if (previous_timestamp_ns == 0) {
                        first_event = true;
                        previous_event_name = "";
                    }

                    // Open the program envelope. If a transition was already buffered (the
                    // auto-create race above), the envelope opens at that earlier timestamp so
                    // the span always contains its first tor.
                    program_start_ns = std.time.nanoTimestamp();
                    if (previous_timestamp_ns != 0 and previous_timestamp_ns < program_start_ns) {
                        program_start_ns = previous_timestamp_ns;
                    }

                    // Name the two lanes (ph:"M" metadata), then drop the koru:start anchor
                    // (ph:"i" global instant) on the envelope lane.
                    const file = profile_file orelse return;
                    var buffer: [1024]u8 = undefined;
                    var pos: usize = 0;
                    if (!first_event) {
                        buffer[pos] = ',';
                        pos += 1;
                        buffer[pos] = '\n';
                        pos += 1;
                    }
                    first_event = false;
                    const start_us = @divFloor(program_start_ns, 1000);
                    const json = std.fmt.bufPrint(buffer[pos..],
                        "{{\"name\":\"thread_name\",\"ph\":\"M\",\"pid\":0,\"tid\":0,\"args\":{{\"name\":\"transitions\"}}}},\n" ++
                        "{{\"name\":\"thread_name\",\"ph\":\"M\",\"pid\":0,\"tid\":1,\"args\":{{\"name\":\"program\"}}}},\n" ++
                        "{{\"name\":\"koru:start\",\"cat\":\"meta\",\"ph\":\"i\",\"s\":\"g\",\"ts\":{d},\"pid\":0,\"tid\":1}}",
                        .{start_us}
                    ) catch {
                        std.debug.print("ERROR: Failed to format envelope anchors\n", .{});
                        return;
                    };
                    pos += json.len;
                    file.writeAll(buffer[0..pos]) catch {
                        std.debug.print("ERROR: Failed to write envelope anchors\n", .{});
                    };
                    return;

            }
        };
        pub const write_event_event = struct {
            pub const Input = struct {
                source: []const u8,
                timestamp_ns: i128,
            };
            pub const Output = void;
            pub fn handler(__koru_event_input: @This().Input) @This().Output {
                // >>> PROC: write_event  [/Users/larsde/src/koru/koru_std/profiler.kz:107]
                const source = __koru_event_input.source;
                const timestamp_ns = __koru_event_input.timestamp_ns;
                _ = &source;
                _ = &timestamp_ns;
                _ = &__koru_event_input;

                    // Don't create new file after profiler has finished (prevents truncating data)
                    if (profiler_finished) {
                        return;
                    }

                    // Auto-create file if needed (handles case where universal tap's write-event
                    // fires BEFORE koru:start tap's write-header)
                    if (profile_file == null) {
                        profile_file = std.fs.cwd().createFile(std.posix.getenv("KORU_PROFILE_PATH") orelse "/tmp/koru_profile.json", .{}) catch {
                            std.debug.print("ERROR: Failed to create profile file in write-event\n", .{});
                            return;
                        };
                        // Write JSON header
                        const header = "{\"traceEvents\":[\n";
                        profile_file.?.writeAll(header) catch {
                            std.debug.print("ERROR: Failed to write profile header\n", .{});
                            return;
                        };
                        first_event = true;
                    }
                    const file = profile_file orelse return;

                    // First tor: just buffer it, don't write yet
                    if (previous_timestamp_ns == 0) {
                        previous_timestamp_ns = timestamp_ns;
                        previous_event_name = source;
                        return;
                    }

                    // We have a previous tor buffered - write it now with duration to current tor
                    const duration_ns = timestamp_ns - previous_timestamp_ns;
                    const start_us = @divFloor(previous_timestamp_ns, 1000);
                    const duration_us = @divFloor(duration_ns, 1000);

                    // Build JSON manually (fast, no allocations)
                    var buffer: [8192]u8 = undefined;
                    var pos: usize = 0;

                    // Add comma separator if not first tor
                    if (!first_event) {
                        buffer[pos] = ',';
                        pos += 1;
                        buffer[pos] = '\n';
                        pos += 1;
                    }
                    first_event = false;

                    // Build JSON: Complete tor (ph: "X") with duration
                    // Format: {"name":"tor","cat":"transition","ph":"X","ts":start,"dur":duration,"pid":0,"tid":0}
                    // - ph: "X" = complete tor (shows as horizontal bar with duration)
                    // - ts: when the PREVIOUS tor fired
                    // - dur: how long from previous tor until THIS tor
                    // - name: the PREVIOUS tor name
                    // This shows "time spent in previous state" and makes all bars visible!
                    const json = std.fmt.bufPrint(buffer[pos..],
                        "{{\"name\":\"{s}\",\"cat\":\"transition\",\"ph\":\"X\",\"ts\":{d},\"dur\":{d},\"pid\":0,\"tid\":0}}",
                        .{previous_event_name, start_us, duration_us}
                    ) catch return;
                    pos += json.len;

                    file.writeAll(buffer[0..pos]) catch {
                        std.debug.print("ERROR: Failed to write profile event\n", .{});
                    };

                    // Buffer current tor for next write
                    previous_timestamp_ns = timestamp_ns;
                    previous_event_name = source;

                    return;

            }
        };
        pub const write_footer_event = struct {
            pub const Input = struct {
            };
            pub const Output = void;
            pub fn handler(__koru_event_input: @This().Input) @This().Output {
                // >>> PROC: write_footer  [/Users/larsde/src/koru/koru_std/profiler.kz:182]
                _ = &__koru_event_input;

                    const file = profile_file orelse return;

                    // Write the final buffered tor (if any) with small duration
                    if (previous_timestamp_ns != 0) {
                        var buffer: [8192]u8 = undefined;
                        var pos: usize = 0;

                        // Add comma separator if not first tor
                        if (!first_event) {
                            buffer[pos] = ',';
                            pos += 1;
                            buffer[pos] = '\n';
                            pos += 1;
                        }

                        // Emit final tor with 1 microsecond duration (tiny but visible)
                        const start_us = @divFloor(previous_timestamp_ns, 1000);
                        const json = std.fmt.bufPrint(buffer[pos..],
                            "{{\"name\":\"{s}\",\"cat\":\"transition\",\"ph\":\"X\",\"ts\":{d},\"dur\":1,\"pid\":0,\"tid\":0}}",
                            .{previous_event_name, start_us}
                        ) catch {
                            std.debug.print("ERROR: Failed to format final event\n", .{});
                            return;
                        };
                        pos += json.len;

                        file.writeAll(buffer[0..pos]) catch {
                            std.debug.print("ERROR: Failed to write final event\n", .{});
                        };
                        first_event = false;
                    }

                    // Close the program envelope: koru

... [truncated - 24KB total]

Emitted C# source

static class main_module {
  public static void __koru_stdout_write(dynamic s) => global::System.Console.Out.Write(s);
  public static void __koru_stderr_write(dynamic s) => global::System.Console.Error.Write(s);
  // The mutable handle carrier — `*String`-style resources are
  // `new __KoruBox { data = … }` because C# anonymous types are
  // read-only: `s.data = …` (std/string append/clear, handle
  // mutation generally) needs a settable member.
  public class __KoruBox { public dynamic data; }
  // Textification for `{{ … }}` operands: C# bool ToStrings as
  // `True` where Koru prints `true`, and the operand's static type
  // is unknown at this boundary — a `(x) is bool` inline test would
  // be a compile error on statically-typed operands instead. Generic
  // on purpose: `dynamic` boxed every value-type operand — measured
  // ~1s/10M elements on 012_threat_scanner — while T specializes to
  // the operand's own ToString() with no box.
  public static string __koru_str<T>(T v) => v is bool b ? (b ? "true" : "false") : v?.ToString();
  public static class get_number_event {
    public struct Input {
    }
    public static int handler(Input __koru_input) {
      return 42;

      return default;

    }
  }
  public static class std_io_print_ln_event {
    public struct Input {
      public dynamic expr;
      public dynamic invocation;
      public dynamic item;
      public dynamic program;
      public dynamic reporter;
      public dynamic allocator;
    }
    public static dynamic handler(Input __koru_input) {
      var expr = __koru_input.expr;
      var invocation = __koru_input.invocation;
      var item = __koru_input.item;
      var program = __koru_input.program;
      var reporter = __koru_input.reporter;
      var allocator = __koru_input.allocator;
      throw new global::System.Exception("ln: [transform] tor is lowered at compile time and must never be called");

    }
  }
  public static class koru_start_event {
    public struct Input {
    }
    public struct Output {
      public string tag;
      public dynamic done;
    }
    public static Output handler(Input __koru_input) => new Output { tag = "done" };
  }
  public static class koru_end_event {
    public struct Input {
    }
    public struct Output {
      public string tag;
      public dynamic done;
    }
    public static Output handler(Input __koru_input) => new Output { tag = "done" };
  }
  public static void flow0() {
    var n = main_module.get_number_event.handler(new get_number_event.Input { });
__koru_stdout_write("Got number: " + __koru_str(n) + "\n");
  }
  public static void flow1() {
    main_module.koru_start_event.handler(new koru_start_event.Input { });
  }
  public static void flow2() {
    main_module.koru_end_event.handler(new koru_end_event.Input { });
  }
}

static class Program {
  static void Main() {
    main_module.flow1();
    main_module.flow0();
    main_module.flow2();
  }
}

Flows

flow ~get-number click a branch to expand · @labels scroll to their anchor

get-number

Test Configuration

MUST_RUN LANGUAGES: zig cs

Compiler Flags:

--profile

Post-validation Script:

#!/bin/bash
# Validates the Chrome Tracing trace the profiler emitted: the program's real
# transitions are present, the JSON is closed, and the profiler is invisible
# to itself (its write-* events are inserted by [opaque] taps).
if [ -f "koru_profile.snapshot.json" ]; then
    PROFILE_FILE="koru_profile.snapshot.json"
else
    PROFILE_FILE="/tmp/koru_profile.json"
fi

if [ ! -f "$PROFILE_FILE" ]; then
    echo "ERROR: no trace at $PROFILE_FILE"
    exit 1
fi

if ! grep -q '"traceEvents"' "$PROFILE_FILE"; then
    echo "ERROR: missing traceEvents"
    cat "$PROFILE_FILE"
    exit 1
fi

if ! grep -q '"input:get-number"' "$PROFILE_FILE"; then
    echo "ERROR: input:get-number transition missing"
    cat "$PROFILE_FILE"
    exit 1
fi

if ! grep -q '^]}$' "$PROFILE_FILE"; then
    echo "ERROR: JSON not closed"
    cat "$PROFILE_FILE"
    exit 1
fi

# The program envelope: koru:start/koru:end are meta-events, not transitions.
# They anchor the trace as ph:"i" instants on their own lane, with one
# synthesized "program" span between them — and must never appear as
# transition rows.
if ! grep -q '"name":"koru:start","cat":"meta","ph":"i"' "$PROFILE_FILE"; then
    echo "ERROR: koru:start meta anchor missing"
    cat "$PROFILE_FILE"
    exit 1
fi

if ! grep -q '"name":"koru:end","cat":"meta","ph":"i"' "$PROFILE_FILE"; then
    echo "ERROR: koru:end meta anchor missing"
    cat "$PROFILE_FILE"
    exit 1
fi

if ! grep -q '"name":"program","cat":"meta","ph":"X"' "$PROFILE_FILE"; then
    echo "ERROR: synthesized program span missing"
    cat "$PROFILE_FILE"
    exit 1
fi

if grep -qE '"name":"koru:[^"]*","cat":"transition"' "$PROFILE_FILE"; then
    echo "ERROR: meta-event recorded as a transition"
    cat "$PROFILE_FILE"
    exit 1
fi

if grep -qE 'write-event|write-header|write-footer' "$PROFILE_FILE"; then
    echo "ERROR: profiler observed itself"
    cat "$PROFILE_FILE"
    exit 1
fi

echo "✓ trace valid"
exit 0

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