openclaw - 💡(How to fix) Fix [memory] v2026.5.2 silently drops archived sessions from search index (reset/deleted .jsonl produce zero chunks)

Summary

In v2026.5.2, buildSessionEntry short-circuits archive files (.jsonl.reset.*, .jsonl.deleted.*, .jsonl.bak.*) to return an entry with content: "". The indexer then registers these files in the files table but produces zero chunks for them. As a result, memory_search cannot find any content from sessions that have been /reset'd or /new'd. From a user perspective, the assistant forgets the entire conversation the moment it gets archived.

This appears related to #77338 (which argues archive files shouldn't be indexed at all, to fix counter overflow) and #56609 (which establishes that archive files contain irreplaceable history). The behavior shipped in 2026.5.2 partially addresses #77338 but inadvertently breaks long-term recall.

Reproduction

1. Have a Signal/web conversation in a session. Exchange a few messages.
2. /reset the session (or anything else that archives it — e.g., a heartbeat-triggered cleanup).
3. Run openclaw memory index --force.
4. Search for distinctive keywords from the archived conversation via openclaw memory search "<keywords>" or via the memory_search tool.

Expected: Hits from the archived session, with sender/timestamp metadata.

Actual: No matches. The reset file is in sessions/ on disk with the original transcript intact, but chunks table contains nothing for it.

Diagnosis

dist/engine-qmd-DpZ08KSc.js (file hash depends on build, but in 2026.5.2):

function shouldSkipTranscriptFileForDreaming(absPath) {
    const fileName = path.basename(absPath);
    return isSessionArchiveArtifactName(fileName) || isCompactionCheckpointTranscriptFileName(fileName);
}

async function buildSessionEntry(absPath, opts = {}) {
    const stat = await fs$1.stat(absPath);
    if (shouldSkipTranscriptFileForDreaming(absPath)) return {
        path: sessionPathForFile(absPath),
        absPath,
        mtimeMs: stat.mtimeMs,
        size: stat.size,
        hash: hashText("\n\n"),
        content: "",
        lineMap: [],
        messageTimestampsMs: []
    };
    // ... actual content extraction
}

The function is named …ForDreaming but is called unconditionally from the main memory sync path (manager-CgRVbrYO.js:1359 → buildSessionEntry). So the gate applies to all session indexing, not only dreaming/REM passes.

SQLite evidence (one of my containers, v2026.5.2)

chunks total: 785
files total:  922

files by path-suffix:
  plain .jsonl       : 752
  .jsonl.reset.*     :   7
  .jsonl.deleted.*   : 159
  *.md (memory)      :   4

chunks by path-suffix:
  plain .jsonl       : 752
  .jsonl.reset.*     :   0
  .jsonl.deleted.*   :   0
  *.md (memory)      :   4

166 archived files registered in files, zero chunks for any of them. The transcripts themselves are intact on disk (verified: grep "<keyword>" *.jsonl.reset.* finds the content; openclaw memory search "<keyword>" does not).

Impact

For users relying on memory_search as durable long-term memory across sessions, this is invisible data loss. Sessions roll over (manual /reset, or whatever triggers automatic archival), and previously-searchable conversation history silently drops out of the index. The user only notices when the assistant claims "I have no memory of X" for a conversation they remember happening.

Questions

1. Is the archive-file gate intentional in buildSessionEntry's main path, or did it leak in from a dreaming-specific change? The function name (shouldSkipTranscriptFileForDreaming) suggests the latter.
2. If intentional: what's the recommended path for users who want recall across resets? A separate corpus, a config flag, a different command?
3. If unintentional: would a fix make sense that scopes the gate to dreaming code paths and lets the regular indexer chunk archived files (perhaps tagged with a different source so chunks_fts can rank live > archived)?

Happy to test a patch on my deployment.

Environment

• OpenClaw 2026.5.2 (8b2a6e5)
• Node 22.22.1, Ubuntu 24
• agents.defaults.memorySearch.{enabled:true, sources:["memory","sessions"], experimental.sessionMemory:true, store.vector.enabled:false, query.hybrid:{enabled:true, vectorWeight:0, textWeight:1}}