- P2: treat unknown part types as non-content in message-builder messageHasContentFromSDK - P3: reuse shared isRecord from record-type-guard.ts in opencode-http-api
- empty-content-recovery: isSqliteBackend() branch delegating to extracted empty-content-recovery-sdk.ts with SDK message scanning - message-builder: sanitizeEmptyMessagesBeforeSummarize now async with SDK path using replaceEmptyTextPartsAsync/injectTextPartAsync - target-token-truncation: truncateUntilTargetTokens now async with SDK path using findToolResultsBySizeFromSDK/truncateToolResultAsync - aggressive-truncation-strategy: passes client to truncateUntilTargetTokens - summarize-retry-strategy: await sanitizeEmptyMessagesBeforeSummarize - client.ts: derive Client from PluginInput['client'] instead of manual defs - executor.test.ts: .mockReturnValue() → .mockResolvedValue() for async fns - storage.test.ts: add await for async truncateUntilTargetTokens
Extract recovery strategies and storage management: - recovery-strategy.ts, aggressive-truncation-strategy.ts - summarize-retry-strategy.ts, target-token-truncation.ts - empty-content-recovery.ts, message-builder.ts - tool-result-storage.ts, storage-paths.ts, state.ts - client.ts, tool-part-types.ts