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fix: flush partial directory cache on context budget early exit

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When the 70% context budget is hit mid-directory, the early exit now
writes a partial directory cache entry from whatever file summaries
the agent cached in prior turns, instead of discarding the work.

If file entries exist: concatenates their summaries into a directory
entry marked partial=true. If no files were cached: writes a minimal
entry noting the budget was reached before processing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Jeff Smith 2026-03-30 12:17:28 -06:00
parent faccf28dd8
commit 2e2c64386f
1 changed files with 50 additions and 0 deletions
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50
luminos_lib/ai.py
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@ -1016,6 +1016,56 @@ def _run_dir_loop(client, target, cache, tracker, dir_path, max_turns=10,
if tracker.budget_exceeded():
print(f" [AI] Context budget reached — exiting early "
f"({tracker.loop_total:,} tokens used)", file=sys.stderr)
# Flush a partial directory summary from cached file entries
if not cache.has_entry("dir", dir_path):
dir_real = os.path.realpath(dir_path)
file_entries = [
e for e in cache.read_all_entries("file")
if os.path.realpath(e.get("path", "")).startswith(
dir_real + os.sep)
or os.path.dirname(
os.path.join(target, e.get("relative_path", ""))
) == dir_real
]
if file_entries:
file_summaries = [
e["summary"] for e in file_entries if e.get("summary")
]
notable = [
e.get("relative_path", e.get("path", ""))
for e in file_entries if e.get("notable")
]
partial_summary = " ".join(file_summaries)
cache.write_entry("dir", dir_path, {
"path": dir_path,
"relative_path": os.path.relpath(dir_path, target),
"child_count": len([
n for n in os.listdir(dir_path)
if not n.startswith(".")
]) if os.path.isdir(dir_path) else 0,
"summary": partial_summary,
"dominant_category": "unknown",
"notable_files": notable,
"partial": True,
"partial_reason": "context budget reached",
"cached_at": _now_iso(),
})
if not summary:
summary = partial_summary
else:
cache.write_entry("dir", dir_path, {
"path": dir_path,
"relative_path": os.path.relpath(dir_path, target),
"child_count": 0,
"summary": ("Investigation incomplete — context budget "
"reached before any files were processed."),
"dominant_category": "unknown",
"notable_files": [],
"partial": True,
"partial_reason": (
"context budget reached before files processed"),
"cached_at": _now_iso(),
})
break
try: