2026 06 22 152052 when running an archive command on an existing a

▐▛███▜▌ Claude Code v2.1.185 ▝▜█████▛▘ Opus 4.8 · Claude Team ▘▘ ▝▝ ~/.superset/worktrees/Arius7/fix-snapshot

❯ when running an archive command on an existing archive (ie there are already snapshots), how does the new snapshot that is built establish the totalSize?
i have a migrated archive from v7 that shows the correct size (~250 GB) and
i ran a subsequent archive, it archived some extra files but now the snapshot says the size is ~750 KB. the totalsize should be the total size of all the
chunks,not only the net added chunks during the run. is that a bug?

⏺ I'll investigate how snapshots compute totalSize during an archive run. Let me explore the codebase.

⏺ Explore(Find snapshot totalSize logic) ⎿ Done (26 tool uses · 53.8k tokens · 1m 8s) (ctrl+o to expand)

⏺ The investigation confirms a bug. Let me read the key file myself to understand the data flow and design a fix.

Read 1 file (ctrl+o to expand)

⏺ The bug is confirmed. totalSize (line 207) is only incremented at line 404 for files that need uploading — deduped files (lines 387-388, 396-397) never contribute. So on a re-run of a fully-archived tree, the new snapshot's TotalSize reflects only the delta. Let me confirm what size data is available for deduped and pointer-only files.

⏺ Explore(Inspect chunk index lookup and HashedFilePair) ⎿ Done (22 tool uses · 45.2k tokens · 51s) (ctrl+o to expand)

⏺ Let me check how ArchiveResult.TotalSize is consumed, to decide whether to repurpose totalSize or add a separate snapshot accumulator.

⏺ Explore(Find ArchiveResult.TotalSize consumers) ⎿ Done (13 tool uses · 42.8k tokens · 29s) (ctrl+o to expand)

⏺ I've confirmed the bug and the fix design. Here's the root cause:

The totalSize accumulator (ArchiveCommandHandler.cs:207) is only incremented at line 404 — the "needs upload" branch. Deduped files (lines 387–388, 396–397) never contribute.
That same delta value is passed to _snapshotSvc.CreateAsync(...) at line 644.
But SnapshotManifest.TotalSize is documented as "Sum of original (uncompressed) sizes of all files" — the full snapshot, exactly how the v7 migration computes it (MigrateV5.cs, summing every pointer's chunk OriginalSize).

So on an incremental run where almost everything dedups, the new snapshot records only the newly-uploaded bytes (~750 KB) instead of the whole tree (~250 GB). Yes, it's a bug.

One scoping decision before I finalize the plan:

⏺ User answered Claude's questions: ⎿ · The totalSize variable is used in two places: (a) the new snapshot's TotalSize, and (b) the run report shown after archiving (CLI "Size:" and API job summary). The snapshot must show the full archive size. What should the run report show? → add a new incrementalSize next to totalSize. The report should report on both. update the existing tests with assertions on incrementalsize / totalsize, i m not sure we need additional tests

⏺ Understood — totalSize becomes the full snapshot size, plus a new incrementalSize for this-run bytes, both surfaced in the report. Let me find the existing tests to update.

⏺ Explore(Find archive tests asserting TotalSize) ⎿ Done (26 tool uses · 66.2k tokens · 1m 25s) (ctrl+o to expand)

⏺ I have everything needed. Writing the plan.

⏺ Updated plan ⎿ /plan to preview

⏺ User approved Claude's plan ⎿ Plan saved to: ~/.claude/plans/when-running-an-archive-bright-duckling.md · /plan to edit Fix snapshot TotalSize on incremental archive runs

 Context

 When an archive command runs against an existing archive (one that already
 has snapshots),
 a new snapshot is created if the file tree changed. The new snapshot's
 TotalSize is supposed
 to be the sum of original (uncompressed) sizes of all files in the snapshot
 — this is exactly
 what SnapshotManifest.TotalSize is documented as, and exactly how the v7
 migration computes it
 (MigrateV5.cs:474-512, summing every pointer's chunk OriginalSize).

 Today it does not. In ArchiveCommandHandler the totalSize accumulator
 (src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs:207) is
 incremented only in
 the "needs upload" branch of the dedup stage (:404). Every deduplicated
 file
 (:387-388 pointer-only hit, :396-397 content hit) is skipped. That same
 delta value is then
 passed straight into _snapshotSvc.CreateAsync(...) (:644).

 Result: on an incremental run where almost everything dedups (e.g. a
 migrated ~250 GB archive
 re-archived with a few new files), the new snapshot records only the
 newly-uploaded bytes
 (~750 KB) instead of the full tree (~250 GB). This is a bug.

 Intended outcome

 Track two distinct numbers and surface both:
 - totalSize — full snapshot size = sum of original sizes of all files in
 the snapshot.
 This is what gets written to the snapshot manifest.
 - incrementalSize — bytes newly uploaded this run (the current
 accumulator's behavior).

 Both are reported in the CLI and API run summaries. Existing tests are
 updated with assertions on
 both values; no new test classes are expected to be needed.

 Changes

 1. ArchiveCommandHandler.cs — accumulate both sizes in the dedup stage

 File: src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs

 - Add a second accumulator alongside totalSize (:207):
 long incrementalSize = 0;   // bytes newly uploaded this run
 long totalSize        = 0;   // sum of original sizes of ALL files in the 
 snapshot
 - Change the in-flight set to carry sizes so pointer-only files that
 reference an in-run-uploaded
 chunk can be sized. At :251:
 // value = original (uncompressed) size of the chunk
 var inFlightHashes = new ConcurrentDictionary<ContentHash, long>();
 - ContainsKey(...) usages (:379, :392) are unchanged; the TryAdd(hash, 
 true) at :402
 becomes TryAdd(hash, fileSize).
 - In the dedup stage (:372-414), add every file that ends up in the file
 tree to totalSize,
 using the original size appropriate to the file kind:
   - Pointer-only dedup hit (:385-389): no local binary, so size comes from
 the chunk index.
 var sz = isKnown ? known[hashed.ContentHash].OriginalSize : 
 inFlightHashes[hashed.ContentHash];
 then Interlocked.Add(ref totalSize, sz);
   - Content dedup hit, binary present (:392-398): Interlocked.Add(ref 
 totalSize, fs.GetFileSize(hashed.FilePair.RelativePath));
   - New upload (:399-413): keep the existing fileSize computation, and add
 it to both
 incrementalSize and totalSize (replace the single Interlocked.Add(ref 
 totalSize, fileSize)
 at :404).

 Rationale: every file that becomes a snapshot entry passes through one of
 these three branches
 (new uploads are routed here and later flow to the tree via the upload
 stages). ShardEntry.OriginalSize
 (src/Arius.Core/Shared/ChunkIndex/Shard.cs:21) supplies sizes for
 pointer-only files;
 RelativeFileSystem.GetFileSize
 (src/Arius.Core/Shared/FileSystem/RelativeFileSystem.cs:298)
 supplies them for files with a local binary. This mirrors the migration's
 per-pointer summation,
 so duplicate content at multiple paths counts once per path (consistent
 with MigrateV5).
   - Known minor limitation (pre-existing, negligible at scale): a file
 counted at routing time that
 later fails its upload-read (:446-448, :502-507) is skipped from the tree
 but still counted.
 Same edge applies to the current incrementalSize/old totalSize. Not
 addressed here.
 - Pass the full size to snapshot creation (:644):
 await _snapshotSvc.CreateAsync(rootHash.Value, filesScanned, totalSize, 
 ...) — value unchanged
 textually but now correct.
 - Add incrementalSize to the final log line (:694) and set both fields on
 every ArchiveResult
 return (success :696, and the early/error returns at :190, :228, :710).

 2. ArchiveResult — add IncrementalSize

 File: src/Arius.Core/Features/ArchiveCommand/ArchiveCommand.cs:74-84
 - Add public required long IncrementalSize { get; init; } with a doc
 comment, and add a doc
 comment to TotalSize clarifying it is the full snapshot size:
 /// <summary>Sum of original (uncompressed) sizes of all files in the 
 snapshot, in bytes.</summary>
 public required long TotalSize { get; init; }
 /// <summary>Original (uncompressed) bytes newly uploaded during this run, 
 in bytes.</summary>
 public required long IncrementalSize { get; init; }
 - Because it is required, every construction site must set it (handler
 returns above + the CLI mock
 in change 4).

 3. Report both in CLI and API summaries

 - CLI: src/Arius.Cli/Commands/Archive/ArchiveVerb.cs:206-211 — add the
 incremental figure, e.g.
 Uploaded: …, Deduped: …, Uploaded size: 
 {result.IncrementalSize.Bytes().Humanize()}, Total size: 
 {result.TotalSize.Bytes().Humanize()}, ….
 - API: src/Arius.Api/Jobs/JobRunner.cs:66 — append · 
 {JobFormat.Bytes(result.IncrementalSize)} uploaded · 
 {JobFormat.Bytes(result.TotalSize)} total (or similar) so both appear.

 4. CLI test harness mock

 File: src/Arius.Cli.Tests/TestSupport/CliHarness.cs:48-59 — set
 IncrementalSize = 0 next to the
 existing TotalSize = 0 so the mocked ArchiveResult compiles.

 5. Update existing tests with both assertions

 File: src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs — add
 IncrementalSize/TotalSize
 assertions to the multi-run scenarios that already capture ArchiveResult:
 - Archive_Incremental_EachSnapshotVersion_CorrectContent (:160-214): run1
 Incremental=100, Total=100; run2 Incremental=200, Total=300.
 - Archive_FileRenamed_OldPathAbsent_NewPathPresent_SameChunk (:362-394):
 run2 dedup → Incremental=0, Total= size of the renamed file.
 - Archive_FileDeleted_AbsentFromNewSnapshot_PresentInOld (:398-441): run2 →
 Incremental=0, Total= size of the remaining file (verifies the total drops
 when a file leaves the tree).
 - Archive_TwoIdenticalFiles_SingleChunkUploaded_BothRestored (:262-283):
 in-run dedup → Incremental= one copy, Total= both copies counted.

 - Confirm each scenario's exact byte sizes from its fixture setup before
 writing the numbers; adjust
 if --remove-local/pointer-only runs change what is enumerated.

 Verification

 - dotnet build the solution.
 - dotnet test src/Arius.Integration.Tests (RoundtripTests) and
 src/Arius.Core.Tests — the updated
 size assertions are the primary signal.
 - Manual: against a repo with an existing snapshot, add a small new file
 and run archive. Confirm the
 CLI prints a large "Total size" (full archive) and a small "Uploaded size"
 (the new file), and that
 the newly created snapshot's TotalSize (via the stats/list query) matches
 the prior snapshot's
 total plus the delta — not just the delta.

⏺ Let me start implementing. First the core handler changes.

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommand.cs) ⎿ Added 3 lines 77 public required long FilesScanned { get; init; } 78 public required long FilesUploaded { get; init; } 79 public required long FilesDeduped { get; init; } 80 + ///

Sum of original (uncompressed) sizes of all fi +les in the snapshot, in bytes.

81 public required long TotalSize { get; init; } 82 + ///

Original (uncompressed) bytes newly uploaded d +uring this run, in bytes.

83 + public required long IncrementalSize { get; init; }
84 public required FileTreeHash? RootHash { get; init; } 85 public required DateTimeOffset SnapshotTime { get; init; } 86 public string? ErrorMessage { get; init; }

⏺ Now the handler. Start with the accumulator declarations and in-flight set: ⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 5 lines, removed 4 lines 201
202 // ── Shared state ─────────────────────────────────── ─────────────────── 203
204 - long filesScanned = 0;
205 - long filesUploaded = 0;
206 - long filesDeduped = 0;
207 - long totalSize = 0;
204 + long filesScanned = 0;
205 + long filesUploaded = 0;
206 + long filesDeduped = 0;
207 + long totalSize = 0; // sum of original sizes o +f ALL files in the snapshot
208 + long incrementalSize = 0; // bytes newly uploaded th +is run
209
210 var stagingCacheDirectory = RepositoryLocalStatePaths. GetFileTreeCacheRoot(_accountName, _containerName); 211 var fs = new RelativeFileSystem(LocalDirectory.Parse(o pts.RootDirectory));

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 3 lines, removed 2 lines 248
249 // In-flight set: content hashes already queued/up loaded in this run 250 // Used by the dedup stage to detect duplicates wi thin the same run before the 251 - // index is updated.
252 - var inFlightHashes = new ConcurrentDictionary();
251 + // index is updated. Value = original (uncompresse +d) size of the chunk, so a
252 + // pointer-only file referencing an in-run-uploade +d chunk can be sized.
253 + var inFlightHashes = new ConcurrentDictionary();
254
255 // Channels between stages 256 var filePairChannel = Channel.CreateBounded (ChannelCapacity); // TODO be more specific about Si ngleWriter / MultipleReader etc

⏺ Now the dedup stage branches:

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 7 lines, removed 2 lines 384 continue; 385 } 386
387 - // Known dedup: add to manifes -t only
387 + // Known dedup: add to manifes +t only. No local binary, so the
388 + // original size comes from th +e chunk index (or the in-flight upload).
389 _logger.LogInformation("[dedup ] {Path} -> hit (pointer-only)", hashed.FilePair.RelativePath) ; 390 await fileTreeEntryChannel.Wri ter.WriteAsync(hashed, cancellationToken); 391 Interlocked.Increment(ref file sDeduped); 392 + var pointerSize = isKnown ? kn +own[hashed.ContentHash].OriginalSize : inFlightHashes[hashed.C +ontentHash];
393 + Interlocked.Add(ref totalSize, + pointerSize);
394 continue; 395 } 396
... 400 _logger.LogInformation("[dedup ] {Path} -> hit ({Hash})", hashed.FilePair.RelativePath, hashe d.ContentHash.Short8); 401 await fileTreeEntryChannel.Wri ter.WriteAsync(hashed, cancellationToken); 402 Interlocked.Increment(ref file sDeduped); 403 + Interlocked.Add(ref totalSize, + fs.GetFileSize(hashed.FilePair.RelativePath));
404 } 405 else 406 { 407 // Needs upload → mark in-flig ht, route by size 404 - inFlightHashes.TryAdd(hashed.C -ontentHash, true);
408 var fileSize = fs.GetFileSize( hashed.FilePair.RelativePath); 409 + inFlightHashes.TryAdd(hashed.C +ontentHash, fileSize);
410 Interlocked.Add(ref totalSize, fileSize); 411 + Interlocked.Add(ref incrementa +lSize, fileSize);
412 var upload = new FileToUpload( hashed, fileSize); 413 var route = fileSize >= opts. SmallFileThreshold ? "large" : "small"; 414 _logger.LogInformation("[dedup ] {Path} -> new/{Route} ({Hash}, {Size})", hashed.FilePair.Rel ativePath, route, hashed.ContentHash.Short8, fileSize.Bytes(). Humanize());

⏺ Now the log line and the success/error returns. Let me update each:

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 9 lines, removed 8 lines 698
699 _logger.LogInformation("[phase] complete"); 700
701 - _logger.LogInformation("[archive] Done: scanned={S -canned} uploaded={Uploaded} deduped={Deduped} size={Size} snap -shot={Snapshot}", filesScanned, filesUploaded, filesDeduped, t -otalSize.Bytes().Humanize(), snapshotTime.ToString("o"));
701 + _logger.LogInformation("[archive] Done: scanned={S +canned} uploaded={Uploaded} deduped={Deduped} uploadedSize={In +crementalSize} totalSize={TotalSize} snapshot={Snapshot}", fil +esScanned, filesUploaded, filesDeduped, incrementalSize.Bytes( +).Humanize(), totalSize.Bytes().Humanize(), snapshotTime.ToStr +ing("o"));
702
703 return new ArchiveResult 704 { 705 - Success = true,
706 - FilesScanned = filesScanned,
707 - FilesUploaded = filesUploaded,
708 - FilesDeduped = filesDeduped,
709 - TotalSize = totalSize,
710 - RootHash = snapshotRootHash,
711 - SnapshotTime = snapshotTime
705 + Success = true,
706 + FilesScanned = filesScanned,
707 + FilesUploaded = filesUploaded,
708 + FilesDeduped = filesDeduped,
709 + TotalSize = totalSize,
710 + IncrementalSize = incrementalSize,
711 + RootHash = snapshotRootHash,
712 + SnapshotTime = snapshotTime
713 }; 714 } 715 catch (Exception ex)

⏺ Now the three other return sites (validation error :190, staging error :228, catch :710):

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 9 lines, removed 8 lines 189 if (opts is { RemoveLocal: true, NoPointers: true }) 190 return new ArchiveResult 191 { 192 - Success = false,
193 - FilesScanned = 0,
194 - FilesUploaded = 0,
195 - FilesDeduped = 0,
196 - TotalSize = 0,
197 - RootHash = null,
198 - SnapshotTime = DateTimeOffset.UtcNow,
199 - ErrorMessage = "--remove-local cannot be comb -ined with --no-pointers"
192 + Success = false,
193 + FilesScanned = 0,
194 + FilesUploaded = 0,
195 + FilesDeduped = 0,
196 + TotalSize = 0,
197 + IncrementalSize = 0,
198 + RootHash = null,
199 + SnapshotTime = DateTimeOffset.UtcNow,
200 + ErrorMessage = "--remove-local cannot be co +mbined with --no-pointers"
201 }; 202
203 // ── Shared state ─────────────────────────────────── ───────────────────

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 9 lines, removed 8 lines 229 _logger.LogError(ex, "Archive pipeline failed"); 230 return new ArchiveResult 231 { 232 - Success = false,
233 - FilesScanned = filesScanned,
234 - FilesUploaded = filesUploaded,
235 - FilesDeduped = filesDeduped,
236 - TotalSize = totalSize,
237 - RootHash = snapshotRootHash,
238 - SnapshotTime = snapshotRootHash is null ? Dat -eTimeOffset.UtcNow : snapshotTime,
239 - ErrorMessage = ex.Message
232 + Success = false,
233 + FilesScanned = filesScanned,
234 + FilesUploaded = filesUploaded,
235 + FilesDeduped = filesDeduped,
236 + TotalSize = totalSize,
237 + IncrementalSize = incrementalSize,
238 + RootHash = snapshotRootHash,
239 + SnapshotTime = snapshotRootHash is null ? D +ateTimeOffset.UtcNow : snapshotTime,
240 + ErrorMessage = ex.Message
241 }; 242 } 243

⏺ Now the final catch block (~:710):

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 9 lines, removed 8 lines 719 _logger.LogError(ex, "Archive pipeline failed"); 720 return new ArchiveResult 721 { 722 - Success = false,
723 - FilesScanned = filesScanned,
724 - FilesUploaded = filesUploaded,
725 - FilesDeduped = filesDeduped,
726 - TotalSize = totalSize,
727 - RootHash = snapshotRootHash,
728 - SnapshotTime = snapshotRootHash is not null ? - snapshotTime : DateTimeOffset.UtcNow,
729 - ErrorMessage = ex.Message
722 + Success = false,
723 + FilesScanned = filesScanned,
724 + FilesUploaded = filesUploaded,
725 + FilesDeduped = filesDeduped,
726 + TotalSize = totalSize,
727 + IncrementalSize = incrementalSize,
728 + RootHash = snapshotRootHash,
729 + SnapshotTime = snapshotRootHash is not null + ? snapshotTime : DateTimeOffset.UtcNow,
730 + ErrorMessage = ex.Message
731 }; 732 } 733 }

⏺ Now the CLI and API summaries, and the CLI test mock:

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⏺ Update(src/Arius.Cli/Commands/Archive/ArchiveVerb.cs) ⎿ Added 2 lines, removed 1 line 207 $"Scanned: {result.File sScanned}, " + 208 $"Uploaded: {result.Fil esUploaded}, " + 209 $"Deduped: {result.File sDeduped}, " + 210 - $"Size: {result.TotalSi -ze.Bytes().Humanize()}, " +
210 + $"Uploaded size: {resul +t.IncrementalSize.Bytes().Humanize()}, " +
211 + $"Total size: {result.T +otalSize.Bytes().Humanize()}, " +
212 $"Snapshot: {result.Sna pshotTime:yyyy-MM-ddTHHmmss.fffZ}"); 213 return 0; 214 }

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⏺ Update(src/Arius.Api/Jobs/JobRunner.cs) ⎿ Added 1 line, removed 1 line 63
64 if (result.Success) 65 { 66 - var summary = $"Archive complete · {result.File -sUploaded} uploaded · {result.FilesDeduped} deduped · {JobForma -t.Bytes(result.TotalSize)}";
66 + var summary = $"Archive complete · {result.File +sUploaded} uploaded · {result.FilesDeduped} deduped · {JobForma +t.Bytes(result.IncrementalSize)} uploaded · {JobFormat.Bytes(re +sult.TotalSize)} total";
67 database.CompleteJob(jobId, "completed", 100, s ummary); 68 sink.Done("completed", summary); 69 }

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⏺ Update(src/Arius.Cli.Tests/TestSupport/CliHarness.cs) ⎿ Added 1 line 54 FilesUploaded = 0, 55 FilesDeduped = 0, 56 TotalSize = 0, 57 + IncrementalSize = 0,
58 RootHash = null, 59 SnapshotTime = DateTimeOffset.UtcNow, 60 });

⏺ Let me check for any other ArchiveResult construction sites I may have missed:

Searched for 2 patterns (ctrl+o to expand)

⏺ All five sites are covered. Now let me update the RoundtripTests. Let me read the relevant test methods:

Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 4 lines 168
169 var r1 = await fix.ArchiveAsync(); 170 r1.Success.ShouldBeTrue(r1.ErrorMessage); 171 + r1.IncrementalSize.ShouldBe(100); // file-a uploaded t +his run
172 + r1.TotalSize.ShouldBe(100); // snapshot contains + file-a
173 var snapshot1 = r1.SnapshotTime.ToString("yyyy-MM-ddTH Hmmss"); 174
175 await Task.Delay(1100); // ensure distinct timestamp ... 180
181 var r2 = await fix.ArchiveAsync(); 182 r2.Success.ShouldBeTrue(r2.ErrorMessage); 183 + r2.IncrementalSize.ShouldBe(200); // only file-b uploa +ded this run
184 + r2.TotalSize.ShouldBe(300); // snapshot contains + file-a (deduped) + file-b
185
186 // ── Restore snapshot 1 → only file-a ─────────────── ─────────────────── 187 var restoreResult1 = await fix.CreateRestoreHandler(). Handle(

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 2 lines 277 archiveResult.FilesScanned.ShouldBe(2); 278 archiveResult.FilesDeduped.ShouldBe(1); // second file is deduplicated 279 archiveResult.FilesUploaded.ShouldBe(1); // only one c hunk uploaded 280 + archiveResult.IncrementalSize.ShouldBe(500); // one 5 +00-byte chunk uploaded
281 + archiveResult.TotalSize.ShouldBe(1000); // both +identical files counted in the snapshot
282
283 var restoreResult = await fix.RestoreAsync(); 284 restoreResult.Success.ShouldBeTrue(restoreResult.Error Message);

⏺ Now the renamed and deleted tests: Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 2 lines 389 var r2 = await fix.ArchiveAsync(); 390 r2.Success.ShouldBeTrue(r2.ErrorMessage); 391 r2.FilesDeduped.ShouldBe(1); // same content → dedupli cated 392 + r2.IncrementalSize.ShouldBe(0); // nothing new uploa +ded
393 + r2.TotalSize.ShouldBe(400); // snapshot still co +ntains the (renamed) file
394
395 // Restore latest → renamed.bin present, original.bin absent 396 var restoreResult = await fix.RestoreAsync();

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 4 lines 417
418 var r1 = await fix.ArchiveAsync(); 419 r1.Success.ShouldBeTrue(); 420 + r1.IncrementalSize.ShouldBe(300); // both files upload +ed this run
421 + r1.TotalSize.ShouldBe(300); // snapshot contains + both files
422 var snapshot1 = r1.SnapshotTime.ToString("yyyy-MM-ddTH Hmmss"); 423
424 await Task.Delay(1100); ... 429
430 var r2 = await fix.ArchiveAsync(); 431 r2.Success.ShouldBeTrue(); 432 + r2.IncrementalSize.ShouldBe(0); // nothing new uploa +ded
433 + r2.TotalSize.ShouldBe(100); // total drops — onl +y keep.bin remains in the snapshot
434
435 // Restore latest: keep.bin only 436 var latestDirectory = fix.RestoreDirectory / RelativeP ath.Parse("latest");

⏺ Now let me build to verify compilation:

⏺ Bash(dotnet build src/Arius.Core/Arius.Core.csproj src/Arius.Cli/Arius.Cli.csproj src/Arius.Api/Arius.Api.csproj 2>&1 | tail -20) ⎿ MSBUILD : error MSB1008: Only one project can be specified. Full command line: '/usr/local/share/dotnet/sdk/10.0.201/MSBuild.d ll -maxcpucount --verbosity:m -tlp:default=auto --property:NuGetIntera … +11 lines (ctrl+o to expand)

⏺ Bash(dotnet build 2>&1 | tail -25) ⎿ MSBUILD : error MSB1003: Specify a project or solution file. The curre nt working directory does not contain a project or solution file.

Listed 2 directories (ctrl+o to expand)

⏺ Bash(dotnet build src/Arius.slnx 2>&1 | tail -25) ⎿ CSC : warning MSG0005: MediatorGenerator found message without any reg istered handler: Arius.Core.Features.RestoreCommand.SnapshotResolvedEv ent [/Users/wouter/.superset/worktrees/Arius7/fix-snapshot/src/Arius.C … +94 lines (ctrl+o to expand) ⎿ (timeout 7m)

⏺ Build succeeds with 0 errors. Now let me run the relevant tests. These integration tests use Azurite — let me check if it's available, and run the targeted tests:

⏺ Bash(dotnet test src/Arius.Integration.Tests/Arius.Integration.Tests.csproj --filter "FullyQualifiedName~RoundtripTests.Archive_Incremental_EachSnapsh otVersion_Corre…) ⎿ Specifying a project for 'dotnet test' should be via '--project'.

⏺ Bash(dotnet test --project src/Arius.Integration.Tests/Arius.Integration.Tests.csproj --filter "FullyQualifiedName~RoundtripTests.Archive_Incremental_EachSnapshotVer…) ⎿ --report-trx-filename The name of the generated TRX report … +28 lines (ctrl+o to expand)

⏺ This uses TUnit (Microsoft.Testing.Platform). Let me use --treenode-filter:

⏺ Bash(dotnet test --project src/Arius.Integration.Tests/Arius.Integration.Tests.csproj -- --treenode-filter "///RoundtripTests/Archive_Incremental_EachSnapshotVersi…) ⎿ /Users/wouter/.superset/worktrees/Arius7/fix-snapshot/src/Arius.Integr ation.Tests/Arius.Integration.Tests.csproj : warning NU1903: Package ' SQLitePCLRaw.lib.e_sqlite3' 2.1.11 has a known high severity vulnerabi … +47 lines (ctrl+o to expand)

⏺ Integration tests need Docker (Azurite), which isn't running here. The build is clean. Let me run the Docker-free Core unit tests to confirm nothing broke:

⏺ Bash(dotnet test --project src/Arius.Core.Tests/Arius.Core.Tests.csproj -- --treenode-filter "///Archive/" 2>&1 | tail -15) ⎿ /Users/wouter/.superset/worktrees/Arius7/fix-snapshot/src/Arius.Tests. Shared/Arius.Tests.Shared.csproj : warning NU1903: Package 'SQLitePCLR aw.lib.e_sqlite3' 2.1.11 has a known high severity vulnerability, http … +20 lines (ctrl+o to expand)

⏺ Bash(dotnet test --project src/Arius.Cli.Tests/Arius.Cli.Tests.csproj 2>&1 | tail -10) ⎿ In process file artifacts produced: - /Users/wouter/.superset/worktrees/Arius7/fix-snapshot/src/Arius. Cli.Tests/bin/Debug/net10.0/TestResults/Arius.Cli.Tests-macos-net10.0- … +8 lines (ctrl+o to expand)

⏺ All implemented and the Docker-free test suites pass. Here's a summary of what I did.

Summary

Yes, it was a bug. The totalSize accumulator in ArchiveCommandHandler was only incremented for files that needed uploading — deduplicated files (the bulk of an incremental run against an existing archive) never contributed. That delta was then written straight into the new snapshot's TotalSize, which is documented as the sum of original sizes of all files in the snapshot (matching how the v7 migration computes it). Hence ~750 KB instead of ~250 GB.

Changes

ArchiveCommandHandler.cs — split into two accumulators:
- totalSize now sums the original size of every file that enters the snapshot (new uploads + content dedup hits via fs.GetFileSize, pointer-only hits via the chunk index's OriginalSize).
- incrementalSize carries the old behavior (bytes newly uploaded this run).
- inFlightHashes now stores each chunk's size (so pointer-only files referencing an in-run upload can be sized).
- The full totalSize is passed to _snapshotSvc.CreateAsync(...). All five ArchiveResult construction sites set both fields.
ArchiveResult — added IncrementalSize with doc comments clarifying both fields.
CLI (ArchiveVerb.cs) and API (JobRunner.cs) — run summaries now report both "Uploaded size" and "Total size".
Tests — RoundtripTests incremental/dedup/rename/delete scenarios now assert on both IncrementalSize and TotalSize (including the delete case verifying the total drops when a file leaves the tree). CliHarness mock updated.

Verification status

✅ Full solution builds, 0 errors.
✅ Arius.Core.Tests (24) and Arius.Cli.Tests (149) pass.
⚠️ The Arius.Integration.Tests RoundtripTests (which carry the new size assertions) require Docker/Azurite, which isn't running in this environment — they were skipped, not run. You'll want to run those locally with Docker up:

dotnet test --project src/Arius.Integration.Tests/Arius.Integration.Tests.csproj -- --treenode-filter "///RoundtripTests/*"

One thing worth flagging: there's a known, pre-existing minor edge case I did not change — a file counted at routing time that later fails its upload-read is still counted toward the totals. This already applied to the old accumulator and is negligible at scale.

✻ Baked for 11m 30s

※ recap: Goal: fix snapshot TotalSize showing only newly-added bytes instead of the full archive size on incremental runs. Done and building, with Core/CLI tests passing. Next: run the integration RoundtripTests locally with Docker/Azurite up to confirm the new size assertions. (disable recaps in /config)

❯ commit and open a pr

⏺ Bash(git status && echo "---DIFF STAT---" && git diff --stat) ⎿ On branch fix-snapshot Changes not staged for commit: (use "git add ..." to update what will be committed) … +17 lines (ctrl+o to expand)

⏺ We're already on the fix-snapshot branch (not master). Let me commit and push.

⏺ Bash(git add -A && git commit -F - <<'EOF' fix: snapshot TotalSize reflects full archive, not just this run's uploads…) ⎿ [fix-snapshot c372d382] fix: snapshot TotalSize reflects full archive, not just this run's uploads 6 files changed, 70 insertions(+), 42 deletions(-)

⏺ Bash(git push -u origin fix-snapshot 2>&1 | tail -15) ⎿ remote: remote: Create a pull request for 'fix-snapshot' on GitHub by visiting : … +12 lines (ctrl+o to expand)

⏺ Bash(gh pr create --base master --head fix-snapshot --title "fix: snapshot TotalSize reflects full archive, not just this run's uploads" --body "$(cat <<'EOF' ## Pro…) ⎿ https://github.com/woutervanranst/Arius7/pull/121

⏺ Done. Committed and PR opened.

Commit c372d382 on fix-snapshot, pushed to origin.
PR #121: https://github.com/woutervanranst/Arius7/pull/121 (base master)

The PR body documents the root cause, the fix (full-snapshot TotalSize + new IncrementalSize), and notes that the integration tests carrying the new size assertions still need to be run with Docker/Azurite in CI.

✻ Sautéed for 36s

※ recap: Fixed the bug where incremental archive runs recorded only newly-uploaded bytes as a snapshot's TotalSize instead of the full archive size. Committed and opened PR #121. Next: run the integration tests with Docker/Azurite to confirm the new size assertions pass. (disable recaps in /config)

❯ in archivecommand, also add docstrings for the other archiveresult members.
understand the full archivecommandhanlder so the docstrings are internally
consistent

⏺ I'll read the full handler to understand each member's semantics, then add consistent docstrings.

Read 1 file (ctrl+o to expand)

⏺ Now I understand each field's semantics from the handler. Let me add consistent docstrings:

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommand.cs) ⎿ Added 30 lines 73 /// 74 public sealed record ArchiveResult 75 { 76 + ///

77 + /// true if the pipeline ran to completion. fals +e on option validation failure,
78 + /// failure to open the staging session, or any unhandled +pipeline exception; see .
79 + ///

80 public required bool Success { get; init; } 81 +
82 + ///

Total number of files enumerated from the sou +rce directory, before deduplication.

83 public required long FilesScanned { get; init; } 84 +
85 + ///

86 + /// Number of files whose content was uploaded during this + run (one per new large file plus one per
87 + /// new entry bundled into a tar). Excludes files skipped +by deduplication ().
88 + ///

89 public required long FilesUploaded { get; init; } 90 +
91 + ///

92 + /// Number of files skipped because their content was alre +ady present — either in the chunk index from a
93 + /// prior run or already queued earlier in this run (inclu +des pointer-only files resolved to an existing chunk).
94 + ///

95 public required long FilesDeduped { get; init; } 96 +
97 ///

Sum of original (uncompressed) sizes of all f iles in the snapshot, in bytes.

98 public required long TotalSize { get; init; } 99 +
100 ///

Original (uncompressed) bytes newly uploaded during this run, in bytes.

101 public required long IncrementalSize { get; init; } 102 +
103 + ///

104 + /// Root hash of the snapshot's file tree. null whe +n no snapshot was produced — an empty source
105 + /// tree, or a failure before the tree was built.
106 + ///

107 public required FileTreeHash? RootHash { get; init; } 108 +
109 + ///

110 + /// Timestamp of the snapshot: the existing snapshot's tim +estamp when the tree is unchanged, or the
111 + /// newly created snapshot's timestamp otherwise. Falls ba +ck to the current time when no snapshot exists.
112 + ///

113 public required DateTimeOffset SnapshotTime { get; init; } 114 +
115 + ///

Human-readable error description when is false; otherwise null.
116 public string? ErrorMessage { get; init; } 117 }

⏺ Let me verify it builds:

⏺ Bash(dotnet build src/Arius.Core/Arius.Core.csproj 2>&1 | tail -4) ⎿ 49 Warning(s) 0 Error(s)

 Time Elapsed 00:00:03.11

⎿ (timeout 5m)

⏺ Builds clean. Let me commit and push to update the PR.

⏺ Bash(git add -A && git commit -F - <<'EOF' docs: add docstrings for remaining ArchiveResult members…) ⎿ [fix-snapshot 37c3290b] docs: add docstrings for remaining ArchiveResu lt members 1 file changed, 30 insertions(+) … +3 lines (ctrl+o to expand)

⏺ Done. Added docstrings to all remaining ArchiveResult members, verified against the actual handler logic for internal consistency:

Success — true on completion; false on option validation, staging-open failure, or unhandled exception.
FilesScanned — total files enumerated from source (Stage 1 count, before dedup).
FilesUploaded — files whose content was uploaded this run (one per new large file + one per new tar entry); excludes deduped.
FilesDeduped — files skipped because content was already present (in the chunk index or queued earlier this run, including pointer-only resolutions).
RootHash — snapshot file-tree root; null for an empty tree or pre-tree failure.
SnapshotTime — existing snapshot's timestamp when unchanged, new one otherwise; falls back to now when no snapshot exists.
ErrorMessage — set when Success is false, otherwise null.

Builds clean; committed (37c3290b) and pushed to update PR #121.

✻ Brewed for 46s

❯ is the total size the noncompressed/nondeduplicated size? is there a size
count for the size of all the chunks in the repository (ie the
compressed/deduplicated size)

⏺ Let me investigate what size metrics exist — particularly whether there's a compressed/deduplicated total.

⏺ Explore(Find repository size metrics) ⎿ Done (41 tool uses · 51.3k tokens · 1m 40s) (ctrl+o to expand)

⏺ Yes on both counts. Here's the precise picture:

TotalSize = uncompressed AND non-deduplicated

The snapshot's TotalSize (surfaced as RepositoryStatistics.OriginalSize) is the sum of each file's original/uncompressed size, summed per file. So: - It's the logical size of everything in the snapshot — what you'd get if you restored it all. - Duplicate files count multiple times (two identical 500-byte files → 1000 bytes), because it sums ShardEntry.OriginalSize once per file entry, not once per unique chunk.

Yes — there's a separate compressed + deduplicated total: StoredSize

The repository's actual storage footprint is computed in ChunkIndexLocalStore.GetStatistics() (src/Arius.Core/Shared/ChunkIndex/ChunkIndexLocalStore.cs:283-309):

SELECT storage_tier_hint, COUNT(*) AS unique_chunks, COALESCE(SUM(chunk_size), 0) AS stored_size FROM (SELECT chunk_hash, MAX(chunk_size) AS chunk_size, MAX(storage_tier_hint) AS storage_tier_hint FROM chunk_index_entries GROUP BY chunk_hash) -- dedup: one row per unique chunk GROUP BY storage_tier_hint;

This sums chunk_size (the stored blob size — compressed + encrypted) over distinct chunk_hash values, so each unique chunk is counted once. It's also broken down per storage tier (Hot/Cool/Cold/Archive).

It's exposed in RepositoryStatistics (src/Arius.Core/Features/StatisticsQuery/StatsQuery.cs:31):

┌──────────────┬───────────────────────────────────────────────────────────┐ │ Field │ Meaning │ ├──────────────┼───────────────────────────────────────────────────────────┤ │ OriginalSize │ uncompressed, non-deduplicated (= snapshot TotalSize) │ ├──────────────┼───────────────────────────────────────────────────────────┤ │ StoredSize │ compressed + deduplicated (Σ chunk_size over unique │ │ │ chunks) │ ├──────────────┼───────────────────────────────────────────────────────────┤ │ UniqueChunks │ count of distinct chunks │ ├──────────────┼───────────────────────────────────────────────────────────┤ │ StoredByTier │ the above split per blob tier │ └──────────────┴───────────────────────────────────────────────────────────┘

Important caveats

StoredSize is repository-wide, not per-snapshot. It comes from the chunk index, which holds every chunk ever uploaded across all snapshots — there's no scoping to a single snapshot's tree. OriginalSize, by contrast, is per-snapshot (from the manifest). So they aren't directly comparable as "before vs after compression" for one snapshot.
It's surfaced via the API/stats query (/repos/{id}/stats → StatisticsDto), but not in the archive run summary. The archive CLI/API summary I just added (IncrementalSize / TotalSize) reports uncompressed numbers only. During an archive run, StoredSize is tracked incrementally for progress (ProgressState.BytesUploaded via ChunkUploadedEvent.StoredSize), but that's the bytes uploaded this run, not a repository total.

So: the deduplicated/compressed total exists and is queryable (StatsQuery → StoredSize), it's just a different query than the archive result, and it's whole-repository rather than per-snapshot.

Want me to add StoredSize (or the incremental stored bytes) to the archive run summary too, so a run reports both logical and physical size?

✻ Cooked for 2m 12s

※ recap: Goal: fix snapshot TotalSize on incremental archive runs. The fix and docstrings are committed and pushed to PR #121. I just answered your size-semantics question. Next: optionally add StoredSize (compressed/deduplicated) to the archive run summary if you want it. (disable recaps in /config)

❯ let s ULTRATHINK this for a coherent design: which metrics should be included in the snapshot? what should be shown in the CLI? anyhting needs to be
added/modified to the migration project? in arius.web / statistics page /
'original size' is misleading: it should show the storedsize (ie the the
uncompressed/deduplicated size)

⏺ This is a meaty design question. Before proposing anything coherent, I need to nail down three facts I don't yet have: (1) does the pipeline actually compress chunks (which determines whether "stored" and "deduplicated-uncompressed" are even different numbers), (2) what the migration populates (does it give a migrated repo a working StoredSize?), and (3) what the arius.web statistics page currently renders. Let me investigate all three in parallel.

⏺ 3 Explore agents finished (ctrl+o to expand) ├ Investigate compression behavior · 24 tool uses · 50.2k tokens │ ⎿ Done ├ Investigate migration size handling · 30 tool uses · 61.0k tokens │ ⎿ Done └ Investigate web statistics page · 29 tool uses · 34.7k tokens ⎿ Done

⏺ I dug into all three unknowns. Before the design, one correction that reframes everything — because it changes what "the size" even means:

There are three distinct sizes, not two

The pipeline always compresses (zstd level 15, hardcoded in ZstdCompressionService, no toggle) and then encrypts. StoredSize is measured as the actual blob length after compression+encryption (CountingStream.BytesWritten in ChunkStorageService). So:

Metric: Original / logical size Dedup?: ❌ no (per-file sum) Compressed?: ❌ no Means: "total size of your files, as you'd restore them" Where it lives: snapshot manifest TotalSize (per-snapshot) ──────────────────────────────────────── Metric: Deduplicated size Dedup?: ✅ yes Compressed?: ❌ no Means: "unique data before compression" Where it lives: not computed anywhere today ──────────────────────────────────────── Metric: Stored size Dedup?: ✅ yes Compressed?: ✅ yes Means: "what you actually pay Azure for" Where it lives: chunk index Σ chunk_size over unique chunks (repo-wide)

So your phrase "storedSize (ie the uncompressed/deduplicated size)" is actually describing two different numbers: stored size is compressed+deduplicated, while the "uncompressed/deduplicated" number is the middle row — which the codebase doesn't currently surface at all. That gap is, I think, the real source of the "Original size is misleading" feeling: today the page jumps from non-deduplicated-uncompressed straight to compressed-deduplicated, with nothing showing the pure dedup effect.

Answers to your four questions

Which metrics belong in the snapshot manifest? Keep it exactly as is: FileCount + TotalSize (logical/original, uncompressed, per-file). Rationale: a snapshot is a logical object — these two are derivable purely from its file tree, immutable, and self-contained. Deduplicated/stored sizes are properties of the chunk index, which is shared across all snapshots and mutates over time (tiers change, chunks accrue). They can't be cleanly attributed to one snapshot, so they don't belong in the manifest. Don't rename TotalSize either — it's already persisted in migrated snapshots.
CLI. The archive run summary should describe the run + resulting snapshot. We already capture per-upload StoredSize (ChunkUploadedEvent/TarBundleUploadedEvent), so we can add one field — IncrementalStoredSize — and show the compression win for the run, e.g.: Uploaded: 12 files, 750 KB → 310 KB stored · Snapshot total: 250 GB (logical). Repo-wide totals stay in the stats query/page, not the run summary.
Migration — no changes needed. I verified it: MigrateV5 writes ChunkSize metadata from the real blob length, and RepairAsync populates chunk_index_entries.chunk_size/original_size, so StoredSize (and a new deduplicated metric) already work for migrated repos. The migrated snapshot's TotalSize is the original-uncompressed per-file sum — consistent with archive. Nothing to touch.
Web statistics page. It already shows both "Original size" and "Stored size" cards plus a "Stored size by tier" table (Angular, statistics-tab.component.ts). So the fix isn't "add stored size" — it's clarity. My recommendation: add the missing Deduplicated size card (the uncompressed/deduplicated number you named — a trivial SUM(original_size) over the chunk index, since content_hash is the PK), and reframe the three as a savings story: Original 250 GB → Deduplicated 180 GB → Stored 90 GB. There's also a real scope bug to fix: when you pick a version, Files/Original size are per-snapshot but Stored size is repo-wide — they shouldn't sit in one undifferentiated row.

A few forks genuinely change the build, so let me confirm direction: ⏺ User answered Claude's questions: ⎿ · How should the statistics page present the size numbers? (It already shows Original + Stored today.) → Add Deduplicated, show all 3 · Stored/Deduplicated numbers come from the chunk index = all chunks across ALL snapshots (repo-wide), while Files/Original size are for the selected snapshot. How should the page handle this scope mismatch? → The 'Original size' on the /repos/{i}/statistics screen of master branch is misleading: it shows the incremental size of this snapshot while it should be showing the total original / locical (non-deduped non-decompressed size) - this was the intent of commit c372d382, but now i m afraid we are confused in termiology between us · Add stored (compressed) bytes to the archive CLI run summary? → Yes, add IncrementalStoredSize

⏺ This reframes the web question entirely — and confirms we're now aligned. Your answer to Q2 is the key: the "Original size" on master's statistics page was misleading because it was reading the buggy snapshot TotalSize (the incremental delta). That's OriginalSize in StatsQuery (OriginalSize = snapshot.TotalSize). So commit c372d382 already fixes the web "Original size" — no web change needed for that; once a corrected snapshot exists, the page shows the true logical total. (Migrated snapshots were already correct; only snapshots written by the buggy archive on master stay wrong, and they're immutable.)

So we're not confused — we've converged. The consolidated, agreed model:

Original size = snapshot.TotalSize — logical, non-dedup, uncompressed (per-snapshot). ✅ fixed by c372d382.
Deduplicated size = Σ original_size over unique content (repo-wide). 🆕 add.
Stored size = Σ chunk_size over unique chunks, compressed (repo-wide). ✅ exists.

And: CLI gets IncrementalStoredSize; migration needs nothing; web adds a Deduplicated card and separates "This snapshot" from "Repository storage" (repo-wide).

Let me read the exact files I'll touch, then implement.

Searched for 3 patterns, read 4 files (ctrl+o to expand)

⏺ Now I have the full picture. Let me create a task list and implement.

⏺ Let me read the ChunkIndexService.GetStatistics area to mirror style, then implement task 1.

Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Core/Shared/ChunkIndex/ChunkIndexService.cs) ⎿ Added 12 lines 633 return _localStore.GetStatistics(); 634 } 635
636 + ///

637 + /// Sum of original (uncompressed) sizes over distinct con +tent — i.e. the deduplicated, uncompressed
638 + /// size of all unique data in the repository. Read from t +he local cache only; no blob reads.
639 + ///

640 + public long GetDeduplicatedOriginalSize()
641 + {
642 + ThrowIfRepairIncomplete();
643 + ThrowIfFlushed();
644 +
645 + return _localStore.GetDeduplicatedOriginalSize();
646 + }
647 +
648 // -- Cache ---------------------------------------------- ----------------- 649
650 ///

⏺ Update(src/Arius.Core/Shared/ChunkIndex/IChunkIndexService.cs) ⎿ Added 8 lines 57 /// share one chunk. 58 ///

59 internal IReadOnlyList GetStatistics(); 60 +
61 + ///

62 + /// Sum of original (uncompressed) sizes over distinct cont +ent — the deduplicated, uncompressed size
63 + /// of all unique data in the repository. Read from the loc +al chunk-index cache only; no blob reads.
64 + /// Unlike this + is before compression, and unlike
65 + /// the snapshot's original size it counts each unique cont +ent once (deduplicated).
66 + ///

67 + internal long GetDeduplicatedOriginalSize();
68 } 69
70 ///

⏺ Now the local store query:

⏺ Update(src/Arius.Core/Shared/ChunkIndex/ChunkIndexLocalStore.cs) ⎿ Added 21 lines 308 } 309 } 310
311 + ///

312 + /// Sum of original (uncompressed) sizes over distinct con +tent. The content_hash primary key
313 + /// already collapses identical content to one row, so a p +lain SUM(original_size) yields the
314 + /// deduplicated, uncompressed size of all unique data in +the repository.
315 + ///

316 + public long GetDeduplicatedOriginalSize()
317 + {
318 + try
319 + {
320 + using var connection = OpenConnection();
321 + using var command = connection.CreateCommand();
322 + command.CommandText = "SELECT COALESCE(SUM(origina +l_size), 0) FROM chunk_index_entries;";
323 + var result = command.ExecuteScalar();
324 + return result is long size ? size : Convert.ToInt6 +4(result);
325 + }
326 + catch (SqliteException ex)
327 + {
328 + throw CreateLocalStoreException(ex);
329 + }
330 + }
331 +
332 // -- PENDING FLUSH -------------------------------------- ----------- 333
334 ///

⏺ Now the StatsQuery — add DeduplicatedSize:

⏺ Update(src/Arius.Core/Features/StatisticsQuery/StatsQuery.cs) ⎿ Added 20 lines, removed 8 lines 18 ///

19 /// Repository statistics. 20 ///

21 -/// Number of files in the snapshot (from t -he manifest).
22 -/// Sum of original (uncompressed) f -ile sizes in bytes (from the manifest).
23 -/// Sum of stored chunk sizes over dis -tinct chunks (from the chunk index).
24 -/// Number of distinct chunks (from -the chunk index).
25 -/// Distinct-chunk count and stored -size split by storage tier.
21 +/// Number of files in the snapshot (from t +he manifest; per-snapshot).
22 +///
23 +/// Logical size: sum of original (uncompressed) file sizes in +bytes, counting duplicates once per file
24 +/// (from the manifest; per-snapshot). This is the size you wou +ld restore.
25 +///
26 +///
27 +/// Sum of original (uncompressed) sizes over distinct content +— the unique data before compression
28 +/// (from the chunk index; repository-wide across all snapshots +).
29 +///
30 +///
31 +/// Sum of stored chunk sizes over distinct chunks — the actual + cloud storage footprint, deduplicated
32 +/// and compressed (from the chunk index; repository-wide acros +s all snapshots).
33 +///
34 +/// Number of distinct chunks (from +the chunk index; repository-wide).
35 +/// Distinct-chunk count and stored +size split by storage tier (repository-wide).
36 /// 27 -/// An empty repository (no snapshot yet) reports all-zero figu -res. The stored/unique-chunk figures
28 -/// are read straight from the local chunk-index cache (no blob - reads), so they reflect the cache's
29 -/// current coverage and finalise once it has fully synchronise -d.
37 +/// An empty repository (no snapshot yet) reports all-zero figu +res. and
38 +/// are scoped to the resolved snaps +hot; the deduplicated/stored/chunk figures
39 +/// are read straight from the local chunk-index cache (no blob + reads) and are repository-wide — they
40 +/// reflect the cache's current coverage and finalise once it h +as fully synchronised.
41 /// 42 public sealed record RepositoryStatistics( 43 long Files, 44 long OriginalSize, 45 + long DeduplicatedSize,
46 long StoredSize, 47 long UniqueChunks, 48 IReadOnlyList StoredByTier);

⏺ Update(src/Arius.Core/Features/StatisticsQuery/StatsQuery.cs) ⎿ Added 7 lines, removed 6 lines 66 if (snapshot is null) 67 { 68 logger.LogDebug("[stats] no snapshot for version {V ersion}; returning empty stats", query.Version ?? ""); 69 - return new RepositoryStatistics(0, 0, 0, 0, []);
69 + return new RepositoryStatistics(0, 0, 0, 0, 0, []); 70 } 71
72 // ── Stage 2: chunk-index aggregate over distinct chun ks, split by storage tier ── 73 var byTier = chunkIndex.GetStatistics(); 74
75 return new RepositoryStatistics( 76 - Files: snapshot.FileCount,
77 - OriginalSize: snapshot.TotalSize,
78 - StoredSize: byTier.Sum(t => t.StoredSize),
79 - UniqueChunks: byTier.Sum(t => t.UniqueChunks),
80 - StoredByTier: byTier);
76 + Files: snapshot.FileCount,
77 + OriginalSize: snapshot.TotalSize,
78 + DeduplicatedSize: chunkIndex.GetDeduplicatedOrigina +lSize(),
79 + StoredSize: byTier.Sum(t => t.StoredSize),
80 + UniqueChunks: byTier.Sum(t => t.UniqueChunks), 81 + StoredByTier: byTier);
82 } 83 }

⏺ Task 1 done. Now the API DTO + endpoint:

Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Api/Contracts/Dtos.cs) ⎿ Added 1 line, removed 1 line 38
39 public sealed record SnapshotDto(string Version, DateTimeOffset Timestamp, long FileCount); 40
41 -public sealed record StatisticsDto(long Files, long OriginalSiz -e, long StoredSize, long UniqueChunks, IReadOnlyList StoredByTier);
41 +public sealed record StatisticsDto(long Files, long OriginalSiz +e, long DeduplicatedSize, long StoredSize, long UniqueChunks, I +ReadOnlyList StoredByTier);
42
43 ///

Stored size and distinct-chunk count for one stora ge tier (Hot/Cool/Cold/Archive).

44 public sealed record TierStatisticsDto(string Tier, long Unique Chunks, long StoredSize);

⏺ Update(src/Arius.Api/Endpoints/BrowseEndpoints.cs) ⎿ File must be read first

Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Api/Endpoints/BrowseEndpoints.cs) ⎿ Added 1 line, removed 1 line 25 var mediator = provider.GetRequiredService(); 26 var stats = await mediator.Send(new StatisticsQuery (version), ct); 27 return new StatisticsDto( 28 - stats.Files, stats.OriginalSize, stats.StoredSi -ze, stats.UniqueChunks,
28 + stats.Files, stats.OriginalSize, stats.Deduplic +atedSize, stats.StoredSize, stats.UniqueChunks,
29 stats.StoredByTier.Select(t => new TierStatisti csDto(t.Tier.ToString(), t.UniqueChunks, t.StoredSize)).ToList( )); 30 }); 31 }

⏺ Now the web. Let me read the api-models and the statistics component:

Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Web/src/app/core/api/api-models.ts) ⎿ Added 1 line 26 export interface StatisticsDto { 27 files: number; 28 originalSize: number; 29 + deduplicatedSize: number;
30 storedSize: number; 31 uniqueChunks: number; 32 storedByTier: TierStatisticsDto[];

Read 1 file (ctrl+o to expand)

⏺ Let me check for web tests that assert on the statistics cards before I restructure:

Read 1 file, listed 1 directory (ctrl+o to expand)

⏺ I'll restructure into two sections and add the Deduplicated card. Let me rewrite the component:

⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿ Added 35 lines, removed 4 lines 3 import { StatisticsDto } from '../../../core/api/api-models'; 4 import { formatBytes, formatCount } from '../../../shared/forma t'; 5
6 -/ Statistics tab: Files / Original size / Stored size / Uniqu -e chunks, with the "pending" banner. */
6 +/
7 + * Statistics tab. Two scopes are shown separately because they + answer different questions and have
8 + * different scope: "This snapshot" (logical size of the select +ed snapshot) vs "Repository storage"
9 + * (deduplicated + compressed footprint across all snapshots, f +rom the chunk index).
10 + */
11 @Component({ 12 selector: 'arius-statistics-tab', 13 standalone: true, 14 changeDetection: ChangeDetectionStrategy.OnPush, 15 template: ` 12 -

13 - @for (card of cards(); track card.label) {
16 +

This snapshot< +/div>
17 +

18 + @for (card of snapshotCards(); track card.label) {
19

20

21 22

23

19 -

24 +

25

26 } 27

28
29 +

30 + Repository storage
31 + · across all +snapshots
32 +

33 +

34 + @for (card of storageCards(); track card.label) {
35 +

36 +

37 +
38 +

39 +

40 +

41 +

42 + }
43 +

44 +
45 + @if (savings(); as sv) {
46 +

47 +

48 +
49 + Stored {{ sv.stored }} from +{{ sv.original }} of files —
50 + {{ sv.percent }} smaller after dedup +lication and compression.
51 +

52 +

53 + }
54 +
55 @if (tiers().length) { 56

57

Stored size by tier

⏺ Now update the cards() method into snapshotCards()/storageCards() and add savings():

⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .ts) ⎿ Added 25 lines, removed 5 lines 95 }); 96 } 97
98 - protected cards() {
98 + // Logical metrics for the selected snapshot (from its manif +est).
99 + protected snapshotCards() {
100 const s = this.stats(); 101 return [ 101 - { label: 'Files', value: s ? formatCount(s.files) : '—', - icon: 'ki-document', chipBg: '#eff6ff', chipFg: '#3b82f6' }, 102 - { label: 'Original size', value: s ? formatBytes(s.origi -nalSize) : '—', icon: 'ki-data', chipBg: '#f0fdf4', chipFg: '# -15803d' },
103 - { label: 'Stored size', value: s ? formatBytes(s.storedS -ize) : '—', icon: 'ki-cloud', chipBg: '#f5f3ff', chipFg: '#6d2 -8d9' },
104 - { label: 'Unique chunks', value: s ? formatCount(s.uniqu -eChunks) : '—', icon: 'ki-element-11', chipBg: '#fffbeb', chip -Fg: '#b45309' },
102 + { label: 'Files', value: s ? formatCount(s.files) : '—', + hint: 'Number of files in this snapshot.', icon: 'ki-document +', chipBg: '#eff6ff', chipFg: '#3b82f6' },
103 + { label: 'Original size', value: s ? formatBytes(s.origi +nalSize) : '—', hint: 'Total uncompressed size of all files in + this snapshot (the size you would restore).', icon: 'ki-data' +, chipBg: '#f0fdf4', chipFg: '#15803d' },
104 ]; 105 } 106
107 + // Physical metrics for the repository (deduplicated + compr +essed, from the chunk index).
108 + protected storageCards() {
109 + const s = this.stats();
110 + return [
111 + { label: 'Deduplicated size', value: s ? formatBytes(s.d +eduplicatedSize) : '—', hint: 'Unique data before compression +— duplicate content counted once.', icon: 'ki-copy', chipBg: ' +#fefce8', chipFg: '#ca8a04' },
112 + { label: 'Stored size', value: s ? formatBytes(s.storedS +ize) : '—', hint: 'Actual cloud storage footprint — deduplicat +ed and compressed.', icon: 'ki-cloud', chipBg: '#f5f3ff', chip +Fg: '#6d28d9' },
113 + { label: 'Unique chunks', value: s ? formatCount(s.uniqu +eChunks) : '—', hint: 'Number of distinct chunks stored.', ico +n: 'ki-element-11', chipBg: '#fffbeb', chipFg: '#b45309' },
114 + ];
115 + }
116 +
117 + // Combined deduplication + compression reduction, original +(logical) → stored (physical).
118 + protected savings() {
119 + const s = this.stats();
120 + if (!s || s.originalSize <= 0 || s.storedSize <= 0 || s.st +oredSize >= s.originalSize) return null;
121 + return {
122 + original: formatBytes(s.originalSize),
123 + stored: formatBytes(s.storedSize),
124 + percent: ${Math.round((1 - s.storedSize / s.originalSiz +e) * 100)}%,
125 + };
126 + }
127 +
128 // Warmer → cooler colours so the access-tier story reads at a glance (Archive = coldest = slowest to restore). 129 private static readonly TIER_COLORS: Record = { 130 Hot: '#ef4444', Cool: '#3b82f6', Cold: '#0ea5e9', Archive: '#64748b',

⏺ Now update the web spec test (now 5 cards, add deduplicatedSize to mock):

⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .spec.ts) ⎿ Added 12 lines, removed 2 lines 24 const multiTier: StatisticsDto = { 25 files: 10, 26 originalSize: 1000, 27 + deduplicatedSize: 200,
28 storedSize: 100, 29 uniqueChunks: 5, 30 storedByTier: [ ... 35
36 afterEach(() => TestBed.resetTestingModule()); 37
37 - it('renders the four KPI cards with real figures', () => {
38 + it('renders the five KPI cards with real figures', () => {
39 const el = render(multiTier); 40 const cards = el.querySelectorAll('[data-testid="kpi-card"] '); 40 - expect(cards.length).toBe(4);
41 + expect(cards.length).toBe(5);
42 expect(el.textContent).not.toContain('—'); 43 + expect(el.textContent).toContain('Original size');
44 + expect(el.textContent).toContain('Deduplicated size');
45 expect(el.textContent).toContain('Unique chunks'); 46 }); 47
48 + it('shows the savings note (original → stored reduction)', () + => {
49 + const el = render(multiTier);
50 + const savings = el.querySelector('[data-testid="savings"]') +;
51 + expect(savings).not.toBeNull();
52 + expect(savings!.textContent).toContain('90%'); // 1 - 100/1 +000
53 + });
54 +
55 it('renders one tier row per StatisticsDto.storedByTier entry , in order', () => { 56 const el = render(multiTier); 57

⏺ Update(src/Arius.Web/src/app/features/repo/statistics/statistics-tab.component .spec.ts) ⎿ Added 1 line, removed 1 line 71 const el = render({ ...multiTier, storedByTier: [] }); 72 expect(el.querySelector('[data-testid="tier-breakdown"]')). toBeNull(); 73 // KPI cards still render (a repo with no cached chunk-inde x coverage shows zeroed figures). 74 - expect(el.querySelectorAll('[data-testid="kpi-card"]').leng -th).toBe(4);
74 + expect(el.querySelectorAll('[data-testid="kpi-card"]').leng +th).toBe(5);
75 }); 76 });

⏺ Let me check for Playwright/e2e references to the statistics cards:

Searched for 1 pattern, read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Web/e2e/specs/statistics.spec.ts) ⎿ Added 5 lines, removed 3 lines 1 import { test, expect } from '../support/fixtures'; 2
3 -test('statistics tab shows the four KPI cards with real figures -', async ({ page, repo }) => {
3 +test('statistics tab shows the five KPI cards with real figures +', async ({ page, repo }) => {
4 await page.goto(/repos/${repo.repoId}/statistics); 5 const cards = page.getByTestId('kpi-card'); 6 - await expect(cards).toHaveCount(4, { timeout: 30_000 });
6 + await expect(cards).toHaveCount(5, { timeout: 30_000 });
7
8 // every card shows a real figure, not just the placeholder d ash 9 - for (let i = 0; i < 4; i++) {
9 + for (let i = 0; i < 5; i++) {
10 await expect(cards.nth(i)).toContainText(/\d/); 11 await expect(cards.nth(i)).not.toContainText('—'); 12 } 13
14 + await expect(page.getByText('Original size')).toBeVisible(); 15 + await expect(page.getByText('Deduplicated size')).toBeVisible +();
16 await expect(page.getByText('Unique chunks')).toBeVisible(); 17 }); 18

⏺ Task 1 & 2 core done. Now task 3 — IncrementalStoredSize in the handler. Let me re-read the current upload sites (line numbers shifted):

Searched for 1 pattern (ctrl+o to expand)

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 3 lines, removed 2 lines 205 long filesScanned = 0; 206 long filesUploaded = 0; 207 long filesDeduped = 0; 208 - long totalSize = 0; // sum of original sizes o -f ALL files in the snapshot
209 - long incrementalSize = 0; // bytes newly uploaded th -is run
208 + long totalSize = 0; // sum of original ( +uncompressed) sizes of ALL files in the snapshot
209 + long incrementalSize = 0; // original (uncompr +essed) bytes newly uploaded this run
210 + long incrementalStoredSize = 0; // stored (compresse +d) bytes newly written to storage this run
211
212 var stagingCacheDirectory = RepositoryLocalStatePaths. GetFileTreeCacheRoot(_accountName, _containerName); 213 var fs = new RelativeFileSystem(LocalDirectory.Parse(o pts.RootDirectory));

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 1 line 470 await chunkIndexEntryChannel.Writer.Wr iteAsync(new ShardEntry(upload.HashedPair.ContentHash, largeCh unkHash, originalSize, storedSize, opts.UploadTier), ct); 471 await fileTreeEntryChannel.Writer.Writ eAsync(upload.HashedPair, ct); 472 Interlocked.Increment(ref filesUploade d); 473 + Interlocked.Add(ref incrementalStoredS +ize, storedSize);
474
475 await _mediator.Publish(new ChunkUploa dedEvent(largeChunkHash, storedSize), ct); 476

⏺ Now the tar upload (storedSize is the whole tar, added once per sealed tar):

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 2 lines 549 using var tarStream = new MemoryStream(sea ledTar.Content.Array!, sealedTar.Content.Offset, sealedTar.Con tent.Count, writable: false, publiclyVisible: true); 550 var uploadResult = await _ch unkStorage.UploadTarAsync(sealedTar.TarHash, tarStream, sealed Tar.UncompressedSize, opts.UploadTier, tarProgress, ct); 551 var storedSize = uploadRes ult.StoredSize; 552 + // One stored size per tar blob (its thin +entries share the blob), so add it once here.
553 + Interlocked.Add(ref incrementalStoredSize, + storedSize);
554
555 // Parallel thin chunk creation for each e ntry 556 await Parallel.ForEachAsync(

⏺ Now add IncrementalStoredSize to ArchiveResult and set it on all return sites + log. First the record:

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommand.cs) ⎿ Error editing file

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommand.cs) ⎿ Added 3 lines 100 ///

Original (uncompressed) bytes newly uploaded during this run, in bytes.

101 public required long IncrementalSize { get; init; } 102
103 + ///

Stored (compressed + encrypted) bytes newly w +ritten to storage during this run, in bytes.

104 + public required long IncrementalStoredSize { get; init; } 105 +
106 ///

107 /// Root hash of the snapshot's file tree. null whe n no snapshot was produced — an empty source 108 /// tree, or a failure before the tree was built.

⏺ Now set IncrementalStoredSize on all four return sites + the log line. The two zero-init sites (validation, staging error) get 0; success and catch get the variable:

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 6 lines, removed 5 lines 193 FilesScanned = 0, 194 FilesUploaded = 0, 195 FilesDeduped = 0, 196 - TotalSize = 0,
197 - IncrementalSize = 0,
198 - RootHash = null,
199 - SnapshotTime = DateTimeOffset.UtcNow,
200 - ErrorMessage = "--remove-local cannot be co -mbined with --no-pointers"
196 + TotalSize = 0,
197 + IncrementalSize = 0,
198 + IncrementalStoredSize = 0,
199 + RootHash = null,
200 + SnapshotTime = DateTimeOffset.UtcNow, 201 + ErrorMessage = "--remove-local cannot + be combined with --no-pointers"
202 }; 203
204 // ── Shared state ─────────────────────────────────── ───────────────────

⏺ Let me fix alignment consistency in that block:

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 4 lines, removed 4 lines 189 if (opts is { RemoveLocal: true, NoPointers: true }) 190 return new ArchiveResult 191 { 192 - Success = false,
193 - FilesScanned = 0,
194 - FilesUploaded = 0,
195 - FilesDeduped = 0,
192 + Success = false,
193 + FilesScanned = 0,
194 + FilesUploaded = 0,
195 + FilesDeduped = 0,
196 TotalSize = 0, 197 IncrementalSize = 0, 198 IncrementalStoredSize = 0,

⏺ Now the staging-error block (~230):

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 10 lines, removed 9 lines 231 _logger.LogError(ex, "Archive pipeline failed"); 232 return new ArchiveResult 233 { 234 - Success = false,
235 - FilesScanned = filesScanned,
236 - FilesUploaded = filesUploaded,
237 - FilesDeduped = filesDeduped,
238 - TotalSize = totalSize,
239 - IncrementalSize = incrementalSize,
240 - RootHash = snapshotRootHash,
241 - SnapshotTime = snapshotRootHash is null ? D -ateTimeOffset.UtcNow : snapshotTime,
242 - ErrorMessage = ex.Message
234 + Success = false,
235 + FilesScanned = filesScanned,
236 + FilesUploaded = filesUploaded,
237 + FilesDeduped = filesDeduped,
238 + TotalSize = totalSize,
239 + IncrementalSize = incrementalSize,
240 + IncrementalStoredSize = incrementalStoredSize, 241 + RootHash = snapshotRootHash,
242 + SnapshotTime = snapshotRootHash is nu +ll ? DateTimeOffset.UtcNow : snapshotTime,
243 + ErrorMessage = ex.Message
244 }; 245 } 246

⏺ Now the success return + log line (~703-714):

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 10 lines, removed 9 lines 706
707 _logger.LogInformation("[phase] complete"); 708
709 - _logger.LogInformation("[archive] Done: scanned={S -canned} uploaded={Uploaded} deduped={Deduped} uploadedSize={In -crementalSize} totalSize={TotalSize} snapshot={Snapshot}", fil -esScanned, filesUploaded, filesDeduped, incrementalSize.Bytes( -).Humanize(), totalSize.Bytes().Humanize(), snapshotTime.ToStr -ing("o"));
709 + _logger.LogInformation("[archive] Done: scanned={S +canned} uploaded={Uploaded} deduped={Deduped} uploadedSize={In +crementalSize} storedSize={IncrementalStoredSize} totalSize={T +otalSize} snapshot={Snapshot}", filesScanned, filesUploaded, f +ilesDeduped, incrementalSize.Bytes().Humanize(), incrementalSt +oredSize.Bytes().Humanize(), totalSize.Bytes().Humanize(), sna +pshotTime.ToString("o"));
710
711 return new ArchiveResult 712 { 713 - Success = true,
714 - FilesScanned = filesScanned,
715 - FilesUploaded = filesUploaded,
716 - FilesDeduped = filesDeduped,
717 - TotalSize = totalSize,
718 - IncrementalSize = incrementalSize,
719 - RootHash = snapshotRootHash,
720 - SnapshotTime = snapshotTime
713 + Success = true,
714 + FilesScanned = filesScanned,
715 + FilesUploaded = filesUploaded,
716 + FilesDeduped = filesDeduped,
717 + TotalSize = totalSize,
718 + IncrementalSize = incrementalSize,
719 + IncrementalStoredSize = incrementalStoredSize, 720 + RootHash = snapshotRootHash,
721 + SnapshotTime = snapshotTime
722 }; 723 } 724 catch (Exception ex)

⏺ Now the final catch block (~725):

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⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 10 lines, removed 9 lines 726 _logger.LogError(ex, "Archive pipeline failed"); 727 return new ArchiveResult 728 { 729 - Success = false,
730 - FilesScanned = filesScanned,
731 - FilesUploaded = filesUploaded,
732 - FilesDeduped = filesDeduped,
733 - TotalSize = totalSize,
734 - IncrementalSize = incrementalSize,
735 - RootHash = snapshotRootHash,
736 - SnapshotTime = snapshotRootHash is not null - ? snapshotTime : DateTimeOffset.UtcNow,
737 - ErrorMessage = ex.Message
729 + Success = false,
730 + FilesScanned = filesScanned,
731 + FilesUploaded = filesUploaded,
732 + FilesDeduped = filesDeduped,
733 + TotalSize = totalSize,
734 + IncrementalSize = incrementalSize,
735 + IncrementalStoredSize = incrementalStoredSize, 736 + RootHash = snapshotRootHash,
737 + SnapshotTime = snapshotRootHash is no +t null ? snapshotTime : DateTimeOffset.UtcNow,
738 + ErrorMessage = ex.Message
739 }; 740 } 741 }

⏺ Now the CLI mock and the CLI/API summaries. First CliHarness:

⏺ Update(src/Arius.Cli.Tests/TestSupport/CliHarness.cs) ⎿ Added 1 line 55 FilesDeduped = 0, 56 TotalSize = 0, 57 IncrementalSize = 0, 58 + IncrementalStoredSize = 0,
59 RootHash = null, 60 SnapshotTime = DateTimeOffset.UtcNow, 61 });

⏺ The CliHarness also constructs RepositoryStatistics (line ~91) — add the new positional arg:

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❯ re the (faulty?) totalsize on the migrated snapshot, that was a test
migration - i can delete the migration - would it make sense to rename the
field name to align? because in the snapshot it says 'totalSize' but it s
meaning is actually increementalsize no?

⏺ Update(src/Arius.Cli.Tests/TestSupport/CliHarness.cs) ⎿ Added 1 line, removed 1 line 88
89 statsHandler 90 .Handle(Arg.Any(), Arg.Any()) 91 - .Returns(new ValueTask(new Re -positoryStatistics(0, 0, 0, 0, [])));
91 + .Returns(new ValueTask(new Re +positoryStatistics(0, 0, 0, 0, 0, [])));
92
93 ArchiveHandler = archiveHandler; 94 RestoreHandler = restoreHandler;

⏺ Now the CLI/API summaries. ArchiveVerb:

⏺ Update(src/Arius.Cli/Commands/Archive/ArchiveVerb.cs) ⎿ Added 1 line, removed 1 line 207 $"Scanned: {result.File sScanned}, " + 208 $"Uploaded: {result.Fil esUploaded}, " + 209 $"Deduped: {result.File sDeduped}, " + 210 - $"Uploaded size: {resul -t.IncrementalSize.Bytes().Humanize()}, " +
210 + $"Uploaded: {result.Inc +rementalStoredSize.Bytes().Humanize()} stored ({result.Increme +ntalSize.Bytes().Humanize()} uncompressed), " +
211 $"Total size: {result.T otalSize.Bytes().Humanize()}, " + 212 $"Snapshot: {result.Sna pshotTime:yyyy-MM-ddTHHmmss.fffZ}"); 213 return 0;

⏺ Update(src/Arius.Api/Jobs/JobRunner.cs) ⎿ Added 1 line, removed 1 line 63
64 if (result.Success) 65 { 66 - var summary = $"Archive complete · {result.File -sUploaded} uploaded · {result.FilesDeduped} deduped · {JobForma -t.Bytes(result.IncrementalSize)} uploaded · {JobFormat.Bytes(re -sult.TotalSize)} total";
66 + var summary = $"Archive complete · {result.File +sUploaded} uploaded · {result.FilesDeduped} deduped · {JobForma +t.Bytes(result.IncrementalStoredSize)} stored ({JobFormat.Bytes +(result.IncrementalSize)} uncompressed) · {JobFormat.Bytes(resu +lt.TotalSize)} total";
67 database.CompleteJob(jobId, "completed", 100, s ummary); 68 sink.Done("completed", summary); 69 }

⏺ Now let me update the StatsQueryHandlerTests for DeduplicatedSize and build. Let me update those test assertions:

⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatsQueryHandlerTests.cs ) ⎿ Added 1 line 39
40 stats.Files.ShouldBe(3); 41 stats.OriginalSize.ShouldBe(600); 42 + stats.DeduplicatedSize.ShouldBe(600); // distinct conte +nt a+b+c = 100+200+300 (uncompressed)
43 stats.UniqueChunks.ShouldBe(2); 44 stats.StoredSize.ShouldBe(90); 45

⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatsQueryHandlerTests.cs ) ⎿ Added 1 line 75
76 stats.UniqueChunks.ShouldBe(2); 77 stats.StoredSize.ShouldBe(100); 78 + stats.DeduplicatedSize.ShouldBe(500); // distinct conte +nt a+b = 100+400 (uncompressed)
79
80 // Ordered by serialized tier (Cool=2 before Archive=4) . 81 stats.StoredByTier.Count.ShouldBe(2);

⏺ Update(src/Arius.Core.Tests/Features/StatisticsQuery/StatsQueryHandlerTests.cs ) ⎿ Added 1 line 96
97 stats.Files.ShouldBe(0); 98 stats.OriginalSize.ShouldBe(0); 99 + stats.DeduplicatedSize.ShouldBe(0);
100 stats.UniqueChunks.ShouldBe(0); 101 stats.StoredSize.ShouldBe(0); 102 }

⏺ Now let me build the .NET side to catch any errors:

⏺ Build is clean. Let me run the affected unit tests:

⏺ Bash(dotnet test --project src/Arius.Core.Tests/Arius.Core.Tests.csproj -- --treenode-filter "///StatisticsQueryHandlerTests/*" 2>&1 | tail -8) ⎿ - /Users/wouter/.superset/worktrees/Arius7/fix-snapshot/src/Arius. Core.Tests/bin/Debug/net10.0/TestResults/Arius.Core.Tests-macos-net10. 0-report.html … +7 lines (ctrl+o to expand)

⏺ Bash(dotnet test --project src/Arius.Cli.Tests/Arius.Cli.Tests.csproj 2>&1 | tail -6) ⎿ Test run summary: Passed! total: 149 failed: 0 … +3 lines (ctrl+o to expand)

⏺ Both pass. Now to your question — it's an important one, and the answer is the opposite of what you'd expect:

No — don't rename it to incrementalSize. That would bake the bug in. The snapshot's TotalSize is meant to be the full logical total of the snapshot. On master the archive handler wrote the incremental delta into it — that mismatch between the name and the value was the bug, which c372d382 fixes. The migration always wrote the correct full total. So the field name is right; the value was wrong, and now it's correct.

But there's a different rename that genuinely improves coherence. Let me check the serialized field name and scope:

Searched for 1 pattern, read 1 file (ctrl+o to expand)

⏺ Bash(cd src/Arius.Core/Shared/Snapshot && ls; echo "---"; grep -rn "Serialize\ |JsonSerializer|JsonPropertyName|System.Text.Json|Newtonsoft" SnapshotSerializer.cs…) ⎿ FileTreeHashJsonConverter.cs SnapshotManifest.cs SnapshotSerializer.cs … +15 lines (ctrl+o to expand)

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⏺ Here's the picture for the rename you're suggesting:

The manifest serializes via camelCase, so the JSON key today is totalSize.
StatsQuery maps OriginalSize = snapshot.TotalSize, the API DTO calls it originalSize, and the web shows "Original size". So the same number is called TotalSize in the manifest but OriginalSize everywhere downstream — that inconsistency is the real naming smell, not "total vs incremental."

So the coherent rename is SnapshotManifest.TotalSize → OriginalSize (JSON key totalSize → originalSize), which aligns the manifest with the stats/DTO/web. Since you can delete and re-migrate the test repo, changing the persisted key is safe (existing migrated snapshots wouldn't deserialize, but you're discarding them).

The open question is how far to carry it — ArchiveResult also has a TotalSize (the same logical number) sitting next to IncrementalSize/IncrementalStoredSize.

⏺ User answered Claude's questions: ⎿ · How far should the rename to 'OriginalSize' go? (You confirmed you'll delete + re-migrate the test repo, so changing the persisted JSON key is fine.) → Manifest + ArchiveResult

⏺ Full rename it is. Let me look at SnapshotService.CreateAsync to rename consistently:

Searched for 1 pattern (ctrl+o to expand)

⏺ Bash(f=$(find src -name SnapshotService.cs); echo "$f"; grep -n "TotalSize|totalSize|CreateAsync|fileCount" "$f") ⎿ Error: Exit code 2 bfs: error: src: No such file or directory.

 ugrep: warning: : No such file or directory

⏺ Bash(cd /Users/wouter/.superset/worktrees/Arius7/fix-snapshot && f=$(find src -name SnapshotService.cs); echo "$f"; grep -n "TotalSize|totalSize|CreateAsync|fileC…) ⎿ src/Arius.Core/Shared/Snapshot/SnapshotService.cs 23: Task CreateAsync( 25: long fileCount, … +8 lines (ctrl+o to expand) Searched for 1 pattern (ctrl+o to expand)

⏺ Now executing the full rename. Let me find the handler's local totalSize occurrences:

Searched for 1 pattern (ctrl+o to expand)

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 1 line, removed 1 line 206 long filesScanned = 0; 207 long filesUploaded = 0; 208 long filesDeduped = 0; 209 - long totalSize = 0; // sum of original ( -uncompressed) sizes of ALL files in the snapshot
209 + long originalSize = 0; // sum of original ( +uncompressed) sizes of ALL files in the snapshot
210 long incrementalSize = 0; // original (uncompr essed) bytes newly uploaded this run 211 long incrementalStoredSize = 0; // stored (compresse d) bytes newly written to storage this run 212

⏺ Bash(perl -0pi -e 's/Interlocked.Add(ref totalSize,/Interlocked.Add(ref originalSize,/g; s/_snapshotSvc.CreateAsync(rootHash.Value, filesScanned, totalSize,/_sn…) ⎿ 209: long originalSize = 0; // sum of original (unco mpressed) sizes of ALL files in the snapshot 238: TotalSize = totalSize, … +17 lines (ctrl+o to expand)

⏺ Now fix the result sites and log line (the local var is now originalSize, so totalSize references are dangling):

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 3 lines, removed 3 lines 235 FilesScanned = filesScanned, 236 FilesUploaded = filesUploaded, 237 FilesDeduped = filesDeduped, 238 - TotalSize = totalSize,
238 + OriginalSize = originalSize,
239 IncrementalSize = incrementalSize, 240 IncrementalStoredSize = incrementalStoredSize, 241 RootHash = snapshotRootHash, ... 714 FilesScanned = filesScanned, 715 FilesUploaded = filesUploaded, 716 FilesDeduped = filesDeduped, 717 - TotalSize = totalSize,
717 + OriginalSize = originalSize,
718 IncrementalSize = incrementalSize, 719 IncrementalStoredSize = incrementalStoredSize, 720 RootHash = snapshotRootHash, ... 730 FilesScanned = filesScanned, 731 FilesUploaded = filesUploaded, 732 FilesDeduped = filesDeduped, 733 - TotalSize = totalSize,
733 + OriginalSize = originalSize,
734 IncrementalSize = incrementalSize, 735 IncrementalStoredSize = incrementalStoredSize, 736 RootHash = snapshotRootHash,

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 1 line, removed 1 line 193 FilesScanned = 0, 194 FilesUploaded = 0, 195 FilesDeduped = 0, 196 - TotalSize = 0,
196 + OriginalSize = 0,
197 IncrementalSize = 0, 198 IncrementalStoredSize = 0, 199 RootHash = null,

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommandHandler.cs) ⎿ Added 1 line, removed 1 line 706
707 _logger.LogInformation("[phase] complete"); 708
709 - _logger.LogInformation("[archive] Done: scanned={S -canned} uploaded={Uploaded} deduped={Deduped} uploadedSize={In -crementalSize} storedSize={IncrementalStoredSize} totalSize={T -otalSize} snapshot={Snapshot}", filesScanned, filesUploaded, f -ilesDeduped, incrementalSize.Bytes().Humanize(), incrementalSt -oredSize.Bytes().Humanize(), totalSize.Bytes().Humanize(), sna -pshotTime.ToString("o"));
709 + _logger.LogInformation("[archive] Done: scanned={S +canned} uploaded={Uploaded} deduped={Deduped} uploadedSize={In +crementalSize} storedSize={IncrementalStoredSize} originalSize +={OriginalSize} snapshot={Snapshot}", filesScanned, filesUploa +ded, filesDeduped, incrementalSize.Bytes().Humanize(), increme +ntalStoredSize.Bytes().Humanize(), originalSize.Bytes().Humani +ze(), snapshotTime.ToString("o"));
710
711 return new ArchiveResult 712 {

⏺ Now ArchiveResult.TotalSize → OriginalSize in ArchiveCommand.cs:

⏺ Update(src/Arius.Core/Features/ArchiveCommand/ArchiveCommand.cs) ⎿ Added 1 line, removed 1 line 95 public required long FilesDeduped { get; init; } 96
97 ///

Sum of original (uncompressed) sizes of all f iles in the snapshot, in bytes.

98 - public required long TotalSize { get; init; }
98 + public required long OriginalSize { get; init; }
99
100 ///

Original (uncompressed) bytes newly uploaded during this run, in bytes.

101 public required long IncrementalSize { get; init; }

⏺ Now SnapshotManifest.TotalSize → OriginalSize, SnapshotService param/assignment, StatsQuery, ArchiveVerb, CliHarness:

⏺ Update(src/Arius.Core/Shared/Snapshot/SnapshotManifest.cs) ⎿ Added 5 lines, removed 2 lines 15 ///

Total number of files in this snapshot. 16 public required long FileCount { get; init; } 17
18 - ///

Sum of original (uncompressed) sizes of all fi -les in bytes.

19 - public required long TotalSize { get; init; }
18 + ///

19 + /// Sum of original (uncompressed) sizes of all files in by +tes, counting duplicates once per file —
20 + /// the logical size of this snapshot (the size you would r +estore). Not deduplicated or compressed.
21 + ///

22 + public required long OriginalSize { get; init; } 23
24 ///

Arius tool version that created this snapshot.

25 public required string AriusVersion { get; init; }

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⏺ Update(src/Arius.Core/Shared/Snapshot/SnapshotService.cs) ⎿ Added 1 line, removed 1 line 23 Task CreateAsync( 24 FileTreeHash rootHash, 25 long fileCount, 26 - long totalSize,
26 + long originalSize,
27 DateTimeOffset? timestamp = null, 28 bool overwrite = false, 29 CancellationToken cancellationToken = default);

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⏺ Update(src/Arius.Core/Shared/Snapshot/SnapshotService.cs) ⎿ Added 2 lines, removed 2 lines 116 public async Task CreateAsync( 117 FileTreeHash rootHash, 118 long fileCount, 119 - long totalSize,
119 + long originalSize,
120 DateTimeOffset? timestamp = null, 121 bool overwrite = false, 122 CancellationToken cancellationToken = default) ... 127 Timestamp = ts, 128 RootHash = rootHash, 129 FileCount = fileCount, 130 - TotalSize = totalSize,
130 + OriginalSize = originalSize,
131 AriusVersion = GetAriusVersion() 132 }; 133

⏺ Update(src/Arius.Core/Features/StatisticsQuery/StatsQuery.cs) ⎿ Added 1 line, removed 1 line 74
75 return new RepositoryStatistics( 76 Files: snapshot.FileCount, 77 - OriginalSize: snapshot.TotalSize,
77 + OriginalSize: snapshot.OriginalSize,
78 DeduplicatedSize: chunkIndex.GetDeduplicatedOrigina lSize(), 79 StoredSize: byTier.Sum(t => t.StoredSize), 80 UniqueChunks: byTier.Sum(t => t.UniqueChunks),

⏺ Update(src/Arius.Cli/Commands/Archive/ArchiveVerb.cs) ⎿ Added 1 line, removed 1 line 208 $"Uploaded: {result.Fil esUploaded}, " + 209 $"Deduped: {result.File sDeduped}, " + 210 $"Uploaded: {result.Inc rementalStoredSize.Bytes().Humanize()} stored ({result.Increme ntalSize.Bytes().Humanize()} uncompressed), " + 211 - $"Total size: {result.T -otalSize.Bytes().Humanize()}, " +
211 + $"Original size: {resul +t.OriginalSize.Bytes().Humanize()}, " +
212 $"Snapshot: {result.Sna pshotTime:yyyy-MM-ddTHHmmss.fffZ}"); 213 return 0; 214 }

⏺ Update(src/Arius.Cli.Tests/TestSupport/CliHarness.cs) ⎿ Added 1 line, removed 1 line 53 FilesScanned = 0, 54 FilesUploaded = 0, 55 FilesDeduped = 0, 56 - TotalSize = 0,
56 + OriginalSize = 0,
57 IncrementalSize = 0, 58 IncrementalStoredSize = 0, 59 RootHash = null,

⏺ Now the test files and any leftover references. Let me rename TotalSize → OriginalSize across the test files, then sweep for stragglers:

⏺ Bash(perl -pi -e 's/\bTotalSize\b/OriginalSize/g' \

  src/Arius.Core.Tests/Features/SnapshotsQuery/SnapshotsQueryHandlerTests.cs
  \…)

⎿ === leftover TotalSize across repo (excluding bin/obj) === src/Arius.Api/Jobs/JobRunner.cs:66: var summary = $"Arc hive complete · {result.FilesUploaded} uploaded · {result.FilesDeduped … +3 lines (ctrl+o to expand) ⏺ Fix the JobRunner leftover:

⏺ Update(src/Arius.Api/Jobs/JobRunner.cs) ⎿ Added 1 line, removed 1 line 63
64 if (result.Success) 65 { 66 - var summary = $"Archive complete · {result.File -sUploaded} uploaded · {result.FilesDeduped} deduped · {JobForma -t.Bytes(result.IncrementalStoredSize)} stored ({JobFormat.Bytes -(result.IncrementalSize)} uncompressed) · {JobFormat.Bytes(resu -lt.TotalSize)} total";
66 + var summary = $"Archive complete · {result.File +sUploaded} uploaded · {result.FilesDeduped} deduped · {JobForma +t.Bytes(result.IncrementalStoredSize)} stored ({JobFormat.Bytes +(result.IncrementalSize)} uncompressed) · {JobFormat.Bytes(resu +lt.OriginalSize)} original";
67 database.CompleteJob(jobId, "completed", 100, s ummary); 68 sink.Done("completed", summary); 69 }

⏺ Now add the IncrementalStoredSize assertions to RoundtripTests (deterministic where deduped → 0). Let me view the relevant spots:

Searched for 1 pattern (ctrl+o to expand)

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 1 line 169 var r1 = await fix.ArchiveAsync(); 170 r1.Success.ShouldBeTrue(r1.ErrorMessage); 171 r1.IncrementalSize.ShouldBe(100); // file-a uploaded t his run 172 + r1.IncrementalStoredSize.ShouldBeGreaterThan(0); // so +mething was written to storage
173 r1.OriginalSize.ShouldBe(100); // snapshot conta ins file-a 174 var snapshot1 = r1.SnapshotTime.ToString("yyyy-MM-ddTH Hmmss"); 175

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 1 line 182 var r2 = await fix.ArchiveAsync(); 183 r2.Success.ShouldBeTrue(r2.ErrorMessage); 184 r2.IncrementalSize.ShouldBe(200); // only file-b uploa ded this run 185 + r2.IncrementalStoredSize.ShouldBeGreaterThan(0); // fi +le-b written to storage
186 r2.OriginalSize.ShouldBe(300); // snapshot conta ins file-a (deduped) + file-b 187
188 // ── Restore snapshot 1 → only file-a ─────────────── ───────────────────

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 1 line 280 archiveResult.FilesDeduped.ShouldBe(1); // second file is deduplicated 281 archiveResult.FilesUploaded.ShouldBe(1); // only one c hunk uploaded 282 archiveResult.IncrementalSize.ShouldBe(500); // one 5 00-byte chunk uploaded 283 + archiveResult.IncrementalStoredSize.ShouldBeGreaterTha +n(0); // one chunk written to storage
284 archiveResult.OriginalSize.ShouldBe(1000); // bo th identical files counted in the snapshot 285
286 var restoreResult = await fix.RestoreAsync();

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 1 line 393 r2.Success.ShouldBeTrue(r2.ErrorMessage); 394 r2.FilesDeduped.ShouldBe(1); // same content → dedupli cated 395 r2.IncrementalSize.ShouldBe(0); // nothing new uploa ded 396 + r2.IncrementalStoredSize.ShouldBe(0); // nothing writt +en to storage
397 r2.OriginalSize.ShouldBe(400); // snapshot still contains the (renamed) file 398
399 // Restore latest → renamed.bin present, original.bin absent

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 1 line 422 var r1 = await fix.ArchiveAsync(); 423 r1.Success.ShouldBeTrue(); 424 r1.IncrementalSize.ShouldBe(300); // both files upload ed this run 425 + r1.IncrementalStoredSize.ShouldBeGreaterThan(0); // bo +th files written to storage
426 r1.OriginalSize.ShouldBe(300); // snapshot conta ins both files 427 var snapshot1 = r1.SnapshotTime.ToString("yyyy-MM-ddTH Hmmss"); 428

⏺ Update(src/Arius.Integration.Tests/Pipeline/RoundtripTests.cs) ⎿ Added 1 line 435 var r2 = await fix.ArchiveAsync(); 436 r2.Success.ShouldBeTrue(); 437 r2.IncrementalSize.ShouldBe(0); // nothing new uploa ded 438 + r2.IncrementalStoredSize.ShouldBe(0); // nothing writt +en to storage
439 r2.OriginalSize.ShouldBe(100); // total drops — only keep.bin remains in the snapshot 440
441 // Restore latest: keep.bin only

⏺ Let me sweep for any remaining totalSize/"totalSize" literals (e.g. hardcoded JSON in serializer tests):

Searched for 1 pattern (ctrl+o to expand)

⏺ The named-argument call sites and the fake implementation need the parameter rename. Let me check the fake:

Read 1 file (ctrl+o to expand)

⏺ Update(src/Arius.Core.Tests/Shared/Snapshot/Fakes/FakeSnapshotService.cs) ⎿ Added 1 line, removed 1 line 14 public Task CreateAsync( 15 FileTreeHash rootHash, 16 long fileCount, 17 - long totalSize,
17 + long originalSize,
18 DateTimeOffset? timestamp = null, 19 bool overwrite = false, 20 CancellationToken cancellationToken = default) => throw new NotSupportedException();

⏺ Bash(perl -pi -e 's/totalSize: 1024/originalSize: 1024/' src/Arius.Integration.Tests/Snapshot/SnapshotServiceIntegrationTests.cs && perl -pi -e 's/totalSize: 512/ori…) ⎿ src/Arius.Integration.Tests/Snapshot/SnapshotServiceIntegrationTests.c s:28: var snapshot = await svc.CreateAsync(s_rootHash, fileCoun t: 10, originalSize: 1024, timestamp: ts); … +3 lines (ctrl+o to expand)

Searched for 1 pattern (ctrl+o to expand)

⏺ Now build the full solution:

⏺ Bash(dotnet build src/Arius.slnx 2>&1 | grep -E "error|Build succeeded|[0-9]+ Error" | head -30) ⎿ Build succeeded. 0 Error(s) ⎿ (timeout 7m)

⏺ Clean. Now run the Docker-free .NET test suites:

⏺ Bash(for p in Arius.Core.Tests Arius.Cli.Tests; do echo "=== $p ==="; dotnet test --project src/$p/$p.csproj 2>&1 | tail -6; done) ⎿ === Arius.Core.Tests === total: 569 failed: 15 … +12 lines (ctrl+o to expand) ⎿ (timeout 7m)

⏺ 15 failures in Core.Tests. Let me see which:

⏺ Bash(dotnet test --project src/Arius.Core.Tests/Arius.Core.Tests.csproj 2>&1 | grep -iE "failed|error" | grep -v "Test run|Build|warning|NU1903" | head -40) ⎿ failed Handle_WithPrefixAndLocalPath_PointerSuffixComparisonIsCaseInse nsitive (43ms) TUnit.Engine.Exceptions.TestFailedException: [Test Failure] JsonExce … +62 lines (ctrl+o to expand) ⎿ (timeout 5m) ⏺ These tests deserialize a snapshot blob built from hardcoded JSON still using the old totalSize key. Let me find the shared test helper:

Searched for 1 pattern (ctrl+o to expand)

⏺ Let me look at how a failing test seeds its snapshot blob:

Searched for 1 pattern, read 1 file (ctrl+o to expand)

⏺ Let me run one failing test with full output to see where the stale JSON comes from:

⏺ Bash(dotnet test --project src/Arius.Core.Tests/Arius.Core.Tests.csproj -- --treenode-filter "///StatisticsQueryHandlerTests/Handle_AggregatesManifestTotalsAndDist…) ⎿ [Test Failure] JsonException: JSON deserialization for type 'Arius.C ore.Shared.Snapshot.SnapshotManifest' was missing required properties including: 'originalSize'. … +43 lines (ctrl+o to expand)

⏺ ResolveAsync is reading a stale on-disk cached snapshot (written with the old totalSize key by my earlier pre-rename test run, keyed by the fixed account/container name). Let me confirm and find the cache root:

Read 1 file (ctrl+o to expand)

⏺ Confirmed — it's the disk-first cache. My earlier pre-rename test run wrote snapshot JSON with the old totalSize key to a local state dir keyed by the fixed account/container names; now ResolveAsync reads those stale files. Let me find and clear that cache dir:

Searched for 2 patterns (ctrl+o to expand)

⏺ The cache lives under ~/.arius/-. These test-account dirs hold stale snapshot JSON from my earlier run. Let me clear the relevant test caches and rerun:

Listed 1 directory (ctrl+o to expand)

⏺ This is a shared ~/.arius dev cache polluted by my earlier pre-rename run (CI starts fresh, so it's only local). Let me find the account names the failing suites use and clear just those:

Searched for 1 pattern (ctrl+o to expand)

⏺ Bash(cd ~/.arius && for a in acct-310 acct-310b acct-311 acct-33-nr acct-33-r acct-36 acct-38 acct-39 acct-ls-local-recursive acct-ls-missing acct-ls-prefix-local ac…) ⎿ cleared ⎿ Shell cwd was reset to /Users/wouter/.superset/worktrees/Arius7/fix-snapshot

⏺ Bash(dotnet test --project src/Arius.Core.Tests/Arius.Core.Tests.csproj 2>&1 | tail -7) ⎿ Test run summary: Passed! total: 569 failed: 0 … +3 lines (ctrl+o to expand) ⎿ (timeout 7m)

⏺ All 569 pass (1 pre-existing skip). The failures were purely the stale local cache. Let me also verify the web component compiles/tests. Let me check the web test setup:

⏺ Bash(cd src/Arius.Web && cat package.json | grep -A8 '"scripts"'; echo "---node_modules?---"; [ -d node_modules ] && echo "present" || echo "absent") ⎿ "scripts": { "ng": "ng", "start": "ng serve", … +8 lines (ctrl+o to expand)

⏺ The web has no node_modules (would need a full npm install), so I can't run the Angular specs locally — I've updated them to match. Let me mark tasks done and review the complete diff: ⏺ Bash(git diff --stat) ⎿ src/Arius.Api/Contracts/Dtos.cs | 2 +- src/Arius.Api/Endpoints/BrowseEndpoints.cs | 2 +- src/Arius.Api/Jobs/JobRunner.cs | 2 +- … +24 lines (ctrl+o to expand)

⏺ Everything is coherent and the .NET tests pass. Let me commit and push to update the PR:

⏺ Bash(cd /Users/wouter/.superset/worktrees/Arius7/fix-snapshot && git add -A && git commit -F - <<'EOF' feat: deduplicated size metric, stored-size in run summary, al…) ⎿ [fix-snapshot 16abd515] feat: deduplicated size metric, stored-size in run summary, align size naming 26 files changed, 250 insertions(+), 108 deletions(-) … +3 lines (ctrl+o to expand)

⏺ Done — committed (16abd515) and pushed to PR #121.

What shipped

New Deduplicated size metric — ChunkIndexLocalStore.GetDeduplicatedOriginalSize() (SUM(original_size) over distinct content; content_hash is the PK so it's inherently deduplicated). Flows through RepositoryStatistics → StatisticsDto → /repos/{id}/stats.
Web statistics page reworked — split into "This snapshot" (Files, Original size) and "Repository storage · across all snapshots" (Deduplicated size, Stored size, Unique chunks), plus a savings note (Stored X from Y — Z% smaller after deduplication and compression). This makes the scope honest (per-snapshot logical vs repo-wide physical) and tells the full Original → Deduplicated → Stored story. Tooltips spell out each definition.
CLI/API run summary — added IncrementalStoredSize (compressed bytes written this run) next to IncrementalSize (uncompressed). The summary now reads e.g. Uploaded: 310 KB stored (750 KB uncompressed), Original size: 250 GB.
Naming alignment — per your choice, renamed the logical-size field to OriginalSize end-to-end: SnapshotManifest.TotalSize → OriginalSize (JSON key totalSize → originalSize), ArchiveResult.TotalSize → OriginalSize, CreateAsync param. One canonical name across manifest, archive result, stats, API, and web.
Migration — confirmed no changes needed; it already populates chunk_size (stored) and the per-file original-size total correctly.

Verification

✅ Solution builds clean (0 errors).
✅ Arius.Core.Tests 568/569 (1 pre-existing skip), Arius.Cli.Tests 149/149.
⚠️ Integration tests (RoundtripTests stored-size assertions) need Docker; Angular specs need npm install — neither runnable here, both updated to match.

Two things to flag

Re-migrate / clear caches: since the JSON key changed (totalSize → originalSize), old snapshot blobs and any local ~/.arius/ snapshot cache won't deserialize — exactly the failure I hit and cleared during testing. Your plan to delete + re-migrate the test repo covers this; just also clear the local cache.
Latent robustness gap (not addressed, by your "clean break" choice): ResolveAsync reads the local snapshot cache disk-first and throws on a schema mismatch rather than falling back to re-download. Fine given re-migration, but if you'd rather upgrades be seamless later, I could make it tolerate/ignore a stale cached manifest. Say the word.

✻ Churned for 22m 58s

※ recap: We're fixing snapshot size metrics in Arius. Done and pushed to PR #121: full-snapshot OriginalSize, new DeduplicatedSize metric, IncrementalStoredSize in run summaries, and naming alignment. Next: you re-migrate the test repo and clear the local ~/.arius cache so old-schema snapshots reload.