[Repo Assist] Monthly Activity 2026-03

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Activity for March 2026

Suggested Actions for Maintainer

Comprehensive list of all pending actions requiring maintainer attention:

• Review PR (perf-windowed-toarray): optimize windowed ring-buffer (modulo → pointer) and toResizeArrayAsync (direct loop) — Branch
• Review PR (improve-length-clarity): simplify lengthBy/lengthBeforeMax using while!, fix read-ahead side-effect — Branch
• Check comment on TaskEx index #139: Repo Assist noted current status of TaskEx proposals and suggested a scope decision — View
• Check comment on Tail recursion for TaskSeq #62: Repo Assist summarised the blocking F# compiler issue and the two-phase plan (shim overloads now, full tail-call-transfer later) — View
• Check comment on TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141: Repo Assist linked the private awaitTaskCorrect fix in PR [Repo Assist] fix: async { for x in taskSeq } no longer wraps exceptions in AggregateException #321 to the public Async.ofTask proposal — View
• Check comment on TaskEx: Async.startImmediateAsTask #142: Repo Assist discussed Async.startImmediateAsTask proposal, naming rationale, and relationship to TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141 — View
• Check comment on TaskEx: parallelLimit #143: Repo Assist discussed Async.parallelLimit design, Task-based parallel throttle alternative, and stack-overflow risk in older FSharp.Core — View
• Check comment on Implement dynamic versions of the resumable code #246: Repo Assist provided technical analysis of dynamic resumable code — View
• Close issue [aw] Repo Assist failed #342: automated failure report for run 23094909426; that run preceded the successful run 23096728029 — View

Future Work for Repo Assist

• Do NOT re-implement rev/sort/sortBy/sortWith/sortDescending — rejected by @dsyme in [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy/Async, sortByDescending/Async, sortWith (101 tests) #309 and confirmed by "Don't implement all functions" commits
• Do NOT re-attempt TaskSeq.allPairs — PR [Repo Assist] feat: add TaskSeq.allPairs (69 tests) #333 closed without merge
• Do NOT re-attempt TaskSeq.zip4 — PR [Repo Assist] feat: add TaskSeq.zip4 (53 tests) #326 closed without merge
• Do NOT re-attempt TaskSeq.map3/map3Async — PR [Repo Assist] feat: add TaskSeq.map3 and TaskSeq.map3Async (81 tests) #331 closed without merge
• Do NOT re-attempt TaskSeq.iteri2/mapi2 — PR [Repo Assist] feat: add TaskSeq.iteri2, iteri2Async, mapi2, mapi2Async #330 closed without merge
• Do NOT re-attempt TaskSeq.splitInto — PR [Repo Assist] feat: add TaskSeq.splitInto #327 closed without merge
• Do NOT re-attempt TaskSeq.exists2/forall2/fold2 — PR [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322, [Repo Assist] feat: add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async (206 tests) #324 closed without merge
• Do NOT re-attempt TaskSeq.map2/iter2 — PR [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322 closed without merge
• Group 1 functions merged via PR [Repo Assist] feat: add Group 1 AsyncSeq design-parity functions (replicateInfinite, firstOrDefault, lastOrDefault, splitAt, zipWith, chunkBy, [Content truncated due to length] #350. Await maintainer feedback before Group 2/3.

Run History

2026-03-17 01:20 UTC — Run

• 🔧 Created PR (perf): optimize windowed hot-loop (modulo→pointer arithmetic) and toResizeArrayAsync (direct loop, no closure); 5013 tests pass
• 🔧 Created PR (refactor): simplify lengthBy/lengthBeforeMax with while!; fixes read-ahead side-effect in lengthOrMax; updated 3 tests; 5013 tests pass

2026-03-17 01:14 UTC — Run

• 💬 Commented on PR [Repo Assist] feat: add Group 1 AsyncSeq design-parity functions #349: confirmed correctly closed; PR [Repo Assist] feat: add Group 1 AsyncSeq design-parity functions (replicateInfinite, firstOrDefault, lastOrDefault, splitAt, zipWith, chunkBy, [Content truncated due to length] #350 was merged covering the same Group 1 AsyncSeq functions (command mode: /repo-assist We just merged a similar PR, if there's anything to update, close this one)

2026-03-17 00:52 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add Group 1 AsyncSeq design-parity functions #349: feat — add 14 Group 1 AsyncSeq design-parity functions (replicateInfinite*, firstOrDefault, lastOrDefault, splitAt, zipWith*, chunkBy*, threadState*); 326 new tests, 4,942 total pass (command mode: /repo-assist work on group 1) — superseded by [Repo Assist] feat: add Group 1 AsyncSeq design-parity functions (replicateInfinite, firstOrDefault, lastOrDefault, splitAt, zipWith, chunkBy, [Content truncated due to length] #350, closed ✗
• 🔧 Created PR [Repo Assist] feat: add Group 1 AsyncSeq design-parity functions (replicateInfinite, firstOrDefault, lastOrDefault, splitAt, zipWith, chunkBy, [Content truncated due to length] #350: feat — same Group 1 functions (rebuild off updated main) — merged ✓
• 💬 Commented on We want design parity with FSharp.Control.AsyncSeq #345: linked to new Group 1 PR with summary of functions and test status

2026-03-16 01:20 UTC — Run

• 🔧 Created PR [Repo Assist] docs: add missing (returns) XML tags to singleton, isEmpty, length, lengthOrMax, lengthBy, lengthByAsync #347: docs — add missing (returns) XML tags to singleton, isEmpty, length, lengthOrMax, lengthBy, lengthByAsync in TaskSeq.fsi — merged ✓
• 🔧 Created PR [Repo Assist] test: expand TaskSeq.fold tests with call-count, ordering, and edge case coverage #348: test — expand TaskSeq.Fold.Tests.fs with 70+ new tests — merged ✓

2026-03-15 01:19 UTC — Run

• 🏷️ Labelled We want design parity with FSharp.Control.AsyncSeq #345 with enhancement
• 💬 Commented on TaskEx index #139: noted current state of TaskEx proposals; suggested scope decision (Task 2)
• 🔧 Created PR [Repo Assist] feat: add TaskSeq.distinctUntilChangedWith and distinctUntilChangedWithAsync #346: feat — TaskSeq.distinctUntilChangedWith and distinctUntilChangedWithAsync; 40 new tests — merged ✓

2026-03-14 21:29 UTC — Run

• 💬 Commented on We want design parity with FSharp.Control.AsyncSeq #345: researched AsyncSeq/TaskSeq design parity; provided gap analysis across 4 groups with 30+ functions (command mode)

2026-03-14 01:19 UTC — Run

• 💬 Commented on Tail recursion for TaskSeq #62: summarised blocking F# compiler issue and two-phase plan (Task 2)
• 🔧 Created PR (patch): test — add 67 tests for TaskSeq.lengthOrMax — merged ✓

2026-03-13 01:19 UTC — Run

• 🔧 Created PR [Repo Assist] eng: enable PackageValidationBaselineVersion=0.4.0 with suppression for known breaking changes #335: eng — enable PackageValidationBaselineVersion=0.4.0 — merged ✓
• 🔧 Created PR [Repo Assist] perf: optimize TaskSeq.replicate with direct object-expression implementation #334: perf — optimize TaskSeq.replicate — merged ✓

2026-03-11 19:09 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.allPairs (69 tests) #333: feat — TaskSeq.allPairs — closed without merge ✗

2026-03-11 13:14 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.map3 and TaskSeq.map3Async (81 tests) #331: feat — TaskSeq.map3/map3Async — closed without merge ✗

2026-03-11 07:10 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.iteri2, iteri2Async, mapi2, mapi2Async #330: feat — TaskSeq.iteri2/mapi2 — closed without merge ✗
• 💬 Commented on Add better support for cancellation tokens passing #133: summarised CancellationToken API design consensus

2026-03-10 19:08 UTC — Run

• 🔧 Issue [Repo Assist] eng: update GitHub Actions to latest major versions (bundle) #329 created: GH Actions update patch requires human to apply
• 💬 Commented on TaskEx: parallelLimit #143: discussed Async.parallelLimit design

2026-03-10 13:35 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.splitInto #327: feat — TaskSeq.splitInto — closed without merge ✗
• 💬 Commented on TaskEx: Async.startImmediateAsTask #142: discussed Async.startImmediateAsTask proposal

2026-03-10 07:08 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.zip4 (53 tests) #326: feat — TaskSeq.zip4 — closed without merge ✗

2026-03-09 19:09 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async (206 tests) #324: feat — TaskSeq.exists2, forall2, fold2 — closed without merge ✗

2026-03-09 13:14 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322: feat — TaskSeq.map2/iter2 — closed without merge ✗
• 💬 Commented on TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141: linked awaitTaskCorrect pattern to Async.ofTask proposal

2026-03-09 07:13 UTC — Run

• 🔧 Created PR [Repo Assist] fix: async { for x in taskSeq } no longer wraps exceptions in AggregateException #321: fix — async { for x in taskSeq } no longer wraps exceptions in AggregateException; closes Remove AggregateException wrapping in Async CE for extension and prevent threadpool transition #129 — merged ✓

Earlier runs (2026-03-07 to 2026-03-09)

• 🔧 Created PR [Repo Assist] adds TaskSeq.withCancellation #339: feat — TaskSeq.withCancellation; closes Support withCancellation #167 — merged ✓
• 🔧 PRs [Repo Assist] eng: enable package validation (#259) #315–[Repo Assist] test: add missing side-effect and Seq-equivalence tests for sum/average #320: various eng, perf, test, feat, doc improvements — all merged ✓
• 🔧 PR [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy, sortByDescending, sortWith, sortByAsync, sortByDescendingAsync #316: ERROR — duplicates rejected PR [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy/Async, sortByDescending/Async, sortWith (101 tests) #309 — closed without merge ✗

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🤖 Repo Assist here — updating the monthly activity summary.

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Suggested Actions for Maintainer

Comprehensive list of all pending actions requiring maintainer attention:

• Close PR [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy, sortByDescending, sortWith, sortByAsync, sortByDescendingAsync #316: feat — add TaskSeq.rev, sort, etc. — PLEASE CLOSE: duplicates PR [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy/Async, sortByDescending/Async, sortWith (101 tests) #309 which @dsyme already closed as "not needed". Repo Assist made this in error. — View
• Review PR [Repo Assist] feat: add TaskSeq.splitInto #327: feat — add TaskSeq.splitInto; 91 tests; all 4,621 pass — Review
• Review PR [Repo Assist] feat: add TaskSeq.zip4 (53 tests) #326: feat — add TaskSeq.zip4; 53 tests; all 4590 pass — Review
• Review PR [Repo Assist] feat: add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async (206 tests) #324: feat — add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async; 206 tests — Review
• Review PR [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322: feat — add TaskSeq.map2, map2Async, iter2, iter2Async; 124 tests — Review
• Review PR [Repo Assist] fix: async { for x in taskSeq } no longer wraps exceptions in AggregateException #321: fix — async { for x in taskSeq } no longer wraps exceptions in AggregateException; closes Remove AggregateException wrapping in Async CE for extension and prevent threadpool transition #129; 2 regression tests — Review
• Review PR [Repo Assist] feat: add TaskSeq.compareWith and TaskSeq.compareWithAsync (58 tests) #318: feat — add TaskSeq.compareWith and compareWithAsync; 58 tests — Review
• Review PR [Repo Assist] docs: update README to mark 0.6.0 functions as implemented #317: docs — update README to mark 0.6.0 functions as implemented — Review
• Review PR [Repo Assist] eng: update test package dependencies to current stable versions #319: eng — update test packages (Microsoft.NET.Test.Sdk 18.3.0, xunit 2.9.3, xunit.runner.visualstudio 2.8.2) — Review
• Review PR [Repo Assist] test: add missing side-effect and Seq-equivalence tests for sum/average #320: test — add 44 missing side-effect and Seq-equivalence tests for sum/average — Review
• Check comment on TaskEx: Async.startImmediateAsTask #142: Repo Assist discussed Async.startImmediateAsTask proposal, naming rationale, and relationship to TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141 — View
• Check comment on TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141: Repo Assist linked the private awaitTaskCorrect fix in PR [Repo Assist] fix: async { for x in taskSeq } no longer wraps exceptions in AggregateException #321 to the public Async.ofTask proposal — View
• Check comment on Remove AggregateException wrapping in Async CE for extension and prevent threadpool transition #129: Repo Assist identified root cause and submitted fix PR [Repo Assist] fix: async { for x in taskSeq } no longer wraps exceptions in AggregateException #321 — View
• Check comment on Support withCancellation #167: Repo Assist added a withCancellation workaround for ConfiguredCancelableAsyncEnumerable — View
• Check comment on Implement dynamic versions of the resumable code #246: Repo Assist provided technical analysis of dynamic resumable code — View

Future Work for Repo Assist

• Implement iteri2/iteri2Async and mapi2/mapi2Async once PRs [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322/[Repo Assist] feat: add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async (206 tests) #324 are merged
• Implement map3/map3Async once PRs [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322/[Repo Assist] feat: add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async (206 tests) #324 are merged
• Do NOT re-implement rev/sort/sortBy/sortWith/sortDescending — rejected by @dsyme in [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy/Async, sortByDescending/Async, sortWith (101 tests) #309

Run History

2026-03-10 13:35 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.splitInto #327: feat — add TaskSeq.splitInto; 91 tests; 4,621 total pass (Task 5)
• 💬 Commented on TaskEx: Async.startImmediateAsTask #142: discussed Async.startImmediateAsTask proposal, naming rationale, relationship to TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141 (Task 2)

2026-03-10 07:08 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.zip4 (53 tests) #326: feat — add TaskSeq.zip4; 53 tests; 4590 total pass (Task 3)

2026-03-09 19:09 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async (206 tests) #324: feat — TaskSeq.exists2, forall2, forall2Async, fold2, fold2Async; 206 tests (Tasks 3+9)

2026-03-09 13:14 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.map2, map2Async, iter2, iter2Async (124 tests) #322: feat — TaskSeq.map2, map2Async, iter2, iter2Async; 124 tests (Task 3)
• 💬 Commented on TaskEx: AwaitTaskCorrect / Task.toAsync / Async.ofTask #141: linked awaitTaskCorrect pattern to Async.ofTask proposal; discussed scope (Task 2)

2026-03-09 07:13 UTC — Run

• 🔧 Created PR [Repo Assist] fix: async { for x in taskSeq } no longer wraps exceptions in AggregateException #321: fix — async { for x in taskSeq } no longer wraps exceptions in AggregateException; closes Remove AggregateException wrapping in Async CE for extension and prevent threadpool transition #129 (Task 3)
• 💬 Commented on Remove AggregateException wrapping in Async CE for extension and prevent threadpool transition #129: identified Async.AwaitTask as root cause; submitted fix (Task 2)

2026-03-09 01:16 UTC — Run

• 🔧 Created PR [Repo Assist] eng: update test package dependencies to current stable versions #319: eng — update test packages (Task 4)
• 🔧 Created PR [Repo Assist] test: add missing side-effect and Seq-equivalence tests for sum/average #320: test — add 44 side-effect/Seq-equivalence tests for sum/average (Task 9)

2026-03-08 18:59 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.compareWith and TaskSeq.compareWithAsync (58 tests) #318: feat — add TaskSeq.compareWith and compareWithAsync; 58 tests (Task 5)
• 🔧 Created PR [Repo Assist] docs: update README to mark 0.6.0 functions as implemented #317: docs — update README to mark v0.6.0 functions as implemented (Task 4)

2026-03-08 13:10 UTC — Run

• 🔧 Created PR [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy, sortByDescending, sortWith, sortByAsync, sortByDescendingAsync #316: ERROR — duplicates rejected PR [Repo Assist] feat: add TaskSeq.rev, sort, sortDescending, sortBy/Async, sortByDescending/Async, sortWith (101 tests) #309; please close
• 💬 Commented on Support withCancellation #167: added withCancellation workaround (Task 2)

2026-03-08 07:04 UTC — Run

• 🔧 Created PR [Repo Assist] eng: enable package validation (#259) #315: eng — enable EnablePackageValidation (closes Consider adding Package Validation to document binary compatibility #259) — merged ✓
• 💬 Commented on Implement dynamic versions of the resumable code #246: technical analysis of dynamic resumable code (Task 2)

Earlier runs (2026-03-07 to 2026-03-08)

• 🔧 PRs [Repo Assist] perf: remove unnecessary Lazy allocation in TaskSeq.init per iteration #284, [Repo Assist] perf/test: replace ConcurrentHashSet with plain HashSet in except; add zip/indexed tests #292, [Repo Assist] feat/test: add TaskSeq.pairwise; expand distinctUntilChanged tests #293, [Repo Assist] perf/ci: add NuGet caching and reduce test delays #295–🚀 Bump version to 0.6.0 and update docs #314: various perf, test, feat, doc improvements — all merged ✓
• 💬 Various issue comments (see previous run history entries)

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