From 0d4dbde837e521b55846436b1a74ed1ef401f0e2 Mon Sep 17 00:00:00 2001
From: Halldrix <12357213+Halldrix@users.noreply.github.com>
Date: Sun, 27 Sep 2026 12:11:57 +0530
Subject: [PATCH] fix(delegate): mark elided timeout-diagnostic goal and eval
 tool output

The subagent timeout diagnostic and the session_search eval harness still
appended a bare "...[truncated]" marker, the imitable wording #121548
replaced everywhere else. Route both through agent.compression_marker.elide
so every elision in the tree mints the same counted, guard-matched marker.

Salvaged from #122392 (only the two call-site hunks; base already ships
the elide helpers the PR re-defined). Refs #121572.
---
 evals/session_search_schema/runner.py | 3 ++-
 tools/delegate_tool_child_run.py      | 5 ++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/evals/session_search_schema/runner.py b/evals/session_search_schema/runner.py
index 20516488b3..5c864c967c 100644
--- a/evals/session_search_schema/runner.py
+++ b/evals/session_search_schema/runner.py
@@ -36,6 +36,7 @@ REPO_ROOT = EVAL_DIR.parent.parent
 sys.path.insert(0, str(EVAL_DIR))
 sys.path.insert(0, str(REPO_ROOT))
 
+from agent.compression_marker import elide  # noqa: E402
 from tasks import SYSTEM, TASKS  # noqa: E402
 
 ALLOWED_KEYS = {
@@ -177,7 +178,7 @@ def run_one(client, model, arm_name, arm_mod, task_id, prompt, oracle,
             if was_err:
                 bad_calls += 1
             if len(out) > 30000:
-                out = out[:30000] + "...[truncated]"
+                out = elide(out, 30000)
             messages.append(
                 {"role": "tool", "tool_call_id": tc.id, "content": out})
     return {
diff --git a/tools/delegate_tool_child_run.py b/tools/delegate_tool_child_run.py
index 1da0c5d38e..0e12ce2b67 100644
--- a/tools/delegate_tool_child_run.py
+++ b/tools/delegate_tool_child_run.py
@@ -11,6 +11,7 @@ import threading
 import time
 from concurrent.futures import TimeoutError as FuturesTimeoutError
 from typing import Any, Dict, List, Optional
+from agent.compression_marker import elide
 from agent.interrupt_compat import request_hard_interrupt
 from dataclasses import dataclass, field
 from tools import file_state
@@ -182,9 +183,7 @@ def _dump_subagent_timeout_diagnostic(
 
         subagent_id = getattr(child, "_subagent_id", None) or f"idx{task_index}"
         dump_path = logs_dir / f"subagent-timeout-{subagent_id}-{_dt.datetime.now().strftime('%Y%m%d_%H%M%S')}.log"
-        _goal_preview = (goal or "").strip()
-        if len(_goal_preview) > 1000:
-            _goal_preview = _goal_preview[:1000] + " ...[truncated]"
+        _goal_preview = elide((goal or "").strip(), 1000)
         def _attr_line(attr):
             try:
                 return f"  {attr}: {getattr(child, attr, None)!r}"