feat(apss): add AgentStateService protobuf schema#5
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…y, seq+version, text body now, extensible)
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The latest Buf updates on your PR. Results from workflow buf-pr / buf (pull_request).
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…1 and rename package/go_package
…rvice to AgentState; update java_outer_classname
…language-agnostic schema
…ntextSnapshot and integrity hash
…rialized snapshot messages
…; remove call_id from request and snapshot; keep exact-order ids
…implify ContextSnapshot; add listing RPCs for snapshot messages and IDs, and conversation message IDs
…and conversation message ids
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Feb 27, 2026
| message Message { | ||
| string id = 1; // server-assigned UUID | ||
| string conversation_id = 2; // routing key | ||
| int64 seq = 3; // monotonic per conversation |
| Role role = 4; // user | assistant | tool | ||
| string kind = 5; // free-form tag (e.g., system, summary, memory, restriction, tool_output) | ||
| MessageBody body = 6; // payload | ||
| MemoryAttrs memory = 7; // optional placement attributes (for memory kinds) |
| MessageBody body = 6; // payload | ||
| MemoryAttrs memory = 7; // optional placement attributes (for memory kinds) | ||
| google.protobuf.Timestamp created_at = 8; | ||
| bool archived = 9; // soft delete / superseded flag |
| MemoryAttrs memory = 7; // optional placement attributes (for memory kinds) | ||
| google.protobuf.Timestamp created_at = 8; | ||
| bool archived = 9; // soft delete / superseded flag | ||
| google.protobuf.Timestamp archived_at = 10; |
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| int64 version = 2; // CAS token (monotonic) | ||
| int64 last_seq = 3; // highest seq among active messages |
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| int64 expect_version = 2; | ||
| string idempotency_key = 3; |
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| int64 expect_version = 2; | ||
| string idempotency_key = 3; | ||
| int64 anchor_seq = 4; |
| // Each snapshot item is a materialized message copy with integrity hash. | ||
| message SnapshotItem { | ||
| string message_id = 1; // original message id | ||
| int64 seq = 2; // original message seq |
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| int64 seq_gte = 2; | ||
| int64 seq_lte = 3; | ||
| bool include_archived = 4; |
| bool include_archived = 4; | ||
| int32 page_size = 5; | ||
| string page_token = 6; | ||
| bool descending = 7; |
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vitramir
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Feb 27, 2026
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| int64 expect_version = 2; | ||
| int64 anchor_seq = 3; |
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| int64 seq_gte = 2; | ||
| int64 seq_lte = 3; |
| // Delete | ||
| message DeleteConversationMessagesRequest { | ||
| string conversation_id = 1; | ||
| int64 expect_version = 2; |
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| int64 seq_gte = 4; // inclusive lower bound (optional) | ||
| int64 seq_lte = 5; // inclusive upper bound (optional) |
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| message AppendConversationMessagesRequest { | ||
| string conversation_id = 1; | ||
| int64 expect_version = 2; // optimistic concurrency; 0 to bypass on create |
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| message ConversationMetadata { | ||
| string conversation_id = 1; | ||
| int64 version = 2; // CAS token (monotonic) |
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vitramir
previously approved these changes
Feb 28, 2026
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vitramir
approved these changes
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This PR adds the Agent Persistent State Service (APSS) protobuf schema:
After merge, platform runtime can consume this API as the persistence layer for stateless CLI LLM loop.