fix(context): Prevent enormous git diffs and OOM during context building by adding exclusion patterns, truncation, and diagnostic logging

changelog.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## 2025-11-04 - 1.8.3 - fix(context)
+Prevent enormous git diffs and OOM during context building by adding exclusion patterns, truncation, and diagnostic logging
+
+- Add comprehensive git diff exclusion globs (locks, build artifacts, maps, bundles, IDE folders, logs, caches) when collecting uncommitted diffs to avoid noisy/huge diffs
+- Pass glob patterns directly to smartgit.getUncommittedDiff for efficient server-side matching
+- Emit diagnostic statistics for diffs (files changed, total characters, estimated tokens, number of exclusion patterns) and warn on unusually large diffs
+- Introduce pre-tokenization safety checks in iterative context builder: truncate raw diff text if it exceeds MAX_DIFF_CHARS and throw a clear error if token count still exceeds MAX_DIFF_TOKENS
+- Format and log token counts using locale-aware formatting for clarity
+- Improve robustness of commit context generation to reduce risk of OOM / model-limit overruns
+
 ## 2025-11-03 - 1.8.0 - feat(context)
 Wire OpenAI provider through task context factory and add git-diff support to iterative context builder