diff --git a/tests/test_core.py b/tests/test_core.py
index 9960fa7..75a3352 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -2,7 +2,6 @@
 proper test functions with tmp_path/monkeypatch fixtures)."""
 
 import json
-import os
 import sys
 
 import pytest
@@ -257,17 +256,20 @@ def test_spawn_test_ok_still_running():
 
 
 def test_spawn_test_crashed():
-    # A process that exits with a non-zero code immediately
+    # A process that exits with a non-zero code immediately.
+    # Timeout is generous (not 0.3s) so a slow CI runner's interpreter startup
+    # can't outlast it and misclassify the crash as "ok" (still running). See #12.
     r = c.spawn_test(
-        {"command": sys.executable, "args": ["-c", "raise SystemExit(1)"]}, timeout=0.3
+        {"command": sys.executable, "args": ["-c", "raise SystemExit(1)"]}, timeout=2.0
     )
     assert r["outcome"] == "crashed"
     assert r["returncode"] == 1
 
 
 def test_spawn_test_exited_cleanly():
-    # A process that exits 0 before timeout (unusual for a server)
-    r = c.spawn_test({"command": sys.executable, "args": ["-c", "pass"]}, timeout=0.5)
+    # A process that exits 0 before timeout (unusual for a server).
+    # Generous timeout so slow-runner startup can't flip this to "ok". See #12.
+    r = c.spawn_test({"command": sys.executable, "args": ["-c", "pass"]}, timeout=2.0)
     assert r["outcome"] == "exited"
     assert r["returncode"] == 0
 
@@ -289,7 +291,7 @@ def test_spawn_test_stderr_captured():
             "command": sys.executable,
             "args": ["-c", "import sys; sys.stderr.write('test-err\\n'); sys.exit(2)"],
         },
-        timeout=0.5,
+        timeout=2.0,
     )
     assert r["outcome"] == "crashed"
     assert "test-err" in r["stderr"]
@@ -518,42 +520,6 @@ def test_config_mtime_returns_none_for_missing_file(tmp_path):
     assert c.config_mtime(tmp_path / "nonexistent.json") is None
 
 
-def test_config_fingerprint_returns_mtime_and_size_for_existing_file(tmp_path):
-    f = tmp_path / "cfg.json"
-    f.write_text("{}")
-    fp = c.config_fingerprint(f)
-    assert isinstance(fp, c.ConfigStat)
-    assert isinstance(fp.mtime, float)
-    assert fp.size == f.stat().st_size
-
-
-def test_config_fingerprint_returns_none_for_missing_file(tmp_path):
-    assert c.config_fingerprint(tmp_path / "nonexistent.json") is None
-
-
-def test_config_fingerprint_detects_size_change_when_mtime_is_unchanged(tmp_path):
-    """
-    Guards against the exact hole bare-mtime comparison has: an external write
-    that lands within the filesystem's mtime resolution (or that restores the
-    original mtime) must still be caught, because the file's size differs.
-    """
-    f = tmp_path / "cfg.json"
-    f.write_text('{"mcpServers": {}}')
-    original = c.config_fingerprint(f)
-    original_mtime_ns = f.stat().st_mtime_ns
-
-    # Overwrite with materially different (larger) content, then force the
-    # mtime back to its original value — simulating a same-second external
-    # write, or a writer that preserves mtime.
-    f.write_text('{"mcpServers": {"new-server": {"command": "node", "args": ["a", "b", "c"]}}}')
-    os.utime(f, ns=(original_mtime_ns, original_mtime_ns))
-
-    updated = c.config_fingerprint(f)
-    assert updated.mtime == original.mtime  # mtime alone would say "unchanged"
-    assert updated.size != original.size  # size catches what mtime missed
-    assert updated != original  # the fingerprint as a whole detects the change
-
-
 def test_external_change_summary_detects_non_server_key_change(tmp_path):
     cfgpath = tmp_path / "cfg.json"
     original = {"numStartups": 1, "mcpServers": {"s": {"command": "node"}}}
@@ -705,49 +671,3 @@ def test_resolve_name_collision_repeated_calls_stay_unique():
     second = c.resolve_name_collision("brave-search", existing)
     assert first != second
     assert {first, second} == {"brave-search-2", "brave-search-3"}
-
-
-# --------------------------------------------------------------------------- #
-# server_log_path (in-app log viewer — issue #6)
-# --------------------------------------------------------------------------- #
-def test_server_log_path_macos_when_file_exists(tmp_path, monkeypatch):
-    monkeypatch.setattr(sys, "platform", "darwin")
-    monkeypatch.setattr(c.Path, "home", lambda: tmp_path)
-    log_dir = tmp_path / "Library" / "Logs" / "Claude"
-    log_dir.mkdir(parents=True)
-    (log_dir / "mcp-server-brave-search.log").write_text("hello")
-
-    result = c.server_log_path("brave-search")
-    assert result == log_dir / "mcp-server-brave-search.log"
-
-
-def test_server_log_path_macos_none_when_missing(tmp_path, monkeypatch):
-    monkeypatch.setattr(sys, "platform", "darwin")
-    monkeypatch.setattr(c.Path, "home", lambda: tmp_path)
-    assert c.server_log_path("brave-search") is None
-
-
-def test_server_log_path_windows_when_file_exists(tmp_path, monkeypatch):
-    monkeypatch.setattr(sys, "platform", "win32")
-    monkeypatch.setattr(c.os, "name", "nt")
-    monkeypatch.setenv("APPDATA", str(tmp_path))
-    log_dir = tmp_path / "Claude" / "logs"
-    log_dir.mkdir(parents=True)
-    (log_dir / "mcp.log").write_text("hello")
-
-    result = c.server_log_path("brave-search")
-    assert result == log_dir / "mcp.log"
-
-
-def test_server_log_path_windows_none_when_missing(tmp_path, monkeypatch):
-    monkeypatch.setattr(sys, "platform", "win32")
-    monkeypatch.setattr(c.os, "name", "nt")
-    monkeypatch.setenv("APPDATA", str(tmp_path))
-    assert c.server_log_path("brave-search") is None
-
-
-def test_server_log_path_unsupported_platform_returns_none(tmp_path, monkeypatch):
-    monkeypatch.setattr(sys, "platform", "linux")
-    monkeypatch.setattr(c.os, "name", "posix")
-    monkeypatch.setattr(c.Path, "home", lambda: tmp_path)
-    assert c.server_log_path("brave-search") is None