No adapter method exists for deleting a memory or entity, so no eval
can exercise the real, merged multi-entity-delete truncation bug class
(mem0ai/mem0#5936, #5970: client-side aggregation silently keeping only
the last response instead of all N). Add an abstract delete() to
MemoryBackendAdapter plus a concrete default delete_many() that loops
over delete() and aggregates one DeleteResult per input id, in order,
even when some deletes fail -- this is the primitive an eval needs to
construct that reproduction and prove the aggregation itself doesn't
truncate.

Implement delete() for real against Mem0 (DELETE /v1/memories/{id}/),
Zep/Graphiti, and OpenViking following each adapter's existing
store/query/update HTTP conventions and documented confidence level.
MemPalace has no confirmed delete/forget primitive in its vendor
surface, so its delete() raises a clearly-documented BackendAPIError
instead of guessing an unverified method name.

Built by Rudrendu Paul and Sourav Nandy, developed with Claude Code

No adapter method exists for deleting a memory or entity, so no eval
can exercise the real, merged multi-entity-delete truncation bug class
(mem0ai/mem0#5936, #5970: client-side aggregation silently keeping only
the last response instead of all N). Add an abstract delete() to
MemoryBackendAdapter plus a concrete default delete_many() that loops
over delete() and aggregates one DeleteResult per input id, in order,
even when some deletes fail -- this is the primitive an eval needs to
construct that reproduction and prove the aggregation itself doesn't
truncate.

Implement delete() for real against Mem0 (DELETE /v1/memories/{id}/),
Zep/Graphiti, and OpenViking following each adapter's existing
store/query/update HTTP conventions and documented confidence level.
MemPalace has no confirmed delete/forget primitive in its vendor
surface, so its delete() raises a clearly-documented BackendAPIError
instead of guessing an unverified method name.

Built by Rudrendu Paul and Sourav Nandy, developed with Claude Code

No adapter method exists for deleting a memory or entity, so no eval
can exercise the real, merged multi-entity-delete truncation bug class
(mem0ai/mem0#5936, #5970: client-side aggregation silently keeping only
the last response instead of all N). Add an abstract delete() to
MemoryBackendAdapter plus a concrete default delete_many() that loops
over delete() and aggregates one DeleteResult per input id, in order,
even when some deletes fail -- this is the primitive an eval needs to
construct that reproduction and prove the aggregation itself doesn't
truncate.

Implement delete() for real against Mem0 (DELETE /v1/memories/{id}/),
Zep/Graphiti, and OpenViking following each adapter's existing
store/query/update HTTP conventions and documented confidence level.
MemPalace has no confirmed delete/forget primitive in its vendor
surface, so its delete() raises a clearly-documented BackendAPIError
instead of guessing an unverified method name.

Built by Rudrendu Paul and Sourav Nandy, developed with Claude Code

No adapter method exists for deleting a memory or entity, so no eval
can exercise the real, merged multi-entity-delete truncation bug class
(mem0ai/mem0#5936, #5970: client-side aggregation silently keeping only
the last response instead of all N). Add an abstract delete() to
MemoryBackendAdapter plus a concrete default delete_many() that loops
over delete() and aggregates one DeleteResult per input id, in order,
even when some deletes fail -- this is the primitive an eval needs to
construct that reproduction and prove the aggregation itself doesn't
truncate.

Implement delete() for real against Mem0 (DELETE /v1/memories/{id}/),
Zep/Graphiti, and OpenViking following each adapter's existing
store/query/update HTTP conventions and documented confidence level.
MemPalace has no confirmed delete/forget primitive in its vendor
surface, so its delete() raises a clearly-documented BackendAPIError
instead of guessing an unverified method name.

Built by Rudrendu Paul and Sourav Nandy, developed with Claude Code

No adapter method exists for deleting a memory or entity, so no eval
can exercise the real, merged multi-entity-delete truncation bug class
(mem0ai/mem0#5936, #5970: client-side aggregation silently keeping only
the last response instead of all N). Add an abstract delete() to
MemoryBackendAdapter plus a concrete default delete_many() that loops
over delete() and aggregates one DeleteResult per input id, in order,
even when some deletes fail -- this is the primitive an eval needs to
construct that reproduction and prove the aggregation itself doesn't
truncate.

Implement delete() for real against Mem0 (DELETE /v1/memories/{id}/),
Zep/Graphiti, and OpenViking following each adapter's existing
store/query/update HTTP conventions and documented confidence level.
MemPalace has no confirmed delete/forget primitive in its vendor
surface, so its delete() raises a clearly-documented BackendAPIError
instead of guessing an unverified method name.

Built by Rudrendu Paul and Sourav Nandy, developed with Claude Code