doobidoo/mcp-memory-service v10.22.0

v10.22.0 — Consolidation Engine Stability Fixes

on GitHub

Summary

Three targeted fixes to the consolidation engine that resolve crashes, data corruption, and accuracy issues encountered during repeated consolidation cycles.

Fixed

memory_consolidate status KeyError on empty statistics dict (closes #542)

The memory_consolidate MCP tool's status action raised KeyError when the consolidation engine returned an empty or partial statistics dict — a common state during the first run or immediately after a reset. All dict lookups in the status handler are now replaced with safe .get() calls with sensible defaults (empty lists, zero counts, None timestamps).

10 new tests in tests/consolidation/test_status_handler_issue542.py

Exponential metadata prefix nesting in compression engine (closes #543)

The consolidation compression engine accumulated metadata prefixes (consolidated_from_, compressed_from_) exponentially across repeated consolidation cycles. Each cycle read existing prefixes and prepended new ones, so a memory consolidated three times would have triple-nested prefix strings.

Two changes prevent re-accumulation:

• New _strip_compression_prefixes() static method strips all existing compression-related prefixes from source metadata before re-aggregating into the output memory
• _INTERNAL_METADATA_KEYS blocklist excludes consolidation-internal keys from the aggregated metadata entirely

14 new tests in tests/consolidation/test_compression_prefix_nesting.py

RelationshipInferenceEngine high false positive rate (closes #541)

The RelationshipInferenceEngine produced excessive contradicts relationship labels due to overly broad contradiction detection patterns. Three targeted changes reduce false positives:

1. Weak conjunctions (but, yet, although, however, nevertheless) removed from contradiction pattern vocabulary
2. Minimum confidence threshold raised to min_typed_confidence=0.75 and minimum semantic similarity raised to min_typed_similarity=0.65
3. New _shares_domain_keywords() cross-content guard requires shared domain keywords before a contradicts label is assigned

16 new tests in tests/consolidation/test_relationship_inference_issue541.py

Test Coverage

• 1,373 tests now passing (40 new tests added in this release)
• All new tests tagged @pytest.mark.unit for fast feedback

What's Unchanged

No API changes. No breaking changes. No configuration changes required.

Full Changelog

https://github.com/doobidoo/mcp-memory-service/blob/main/CHANGELOG.md#10220---2026-03-05