We want design parity with FSharp.Control.TaskSeq #277

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1. github-actions

   added a commit that references this issue on Mar 14, 2026

   Add AsyncSeq.withCancellation for design parity with TaskSeq (#277)

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2. github-actions commented on Mar 14, 2026

   

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   Pull request created: #278

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3. github-actions commented on Mar 14, 2026

   

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4. dsyme

   closed this as completedin #278on Mar 16, 2026
5. dsyme

   reopened this on Mar 16, 2026
6. dsyme commented on Mar 16, 2026

   

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   /repo-assist Please keep working on this

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7. github-actions

   added a commit that references this issue on Mar 16, 2026

   Design parity with TaskSeq, batch 2 (#277)

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8. github-actions commented on Mar 16, 2026

   

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   Pull request created: #281

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10. github-actions

    added a commit that references this issue on Mar 16, 2026

    Design parity with TaskSeq, batch 3: insertManyAt, removeManyAt, box,…

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11. github-actions commented on Mar 16, 2026

    

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    Pull request created: #282

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12. github-actions commented on Mar 16, 2026

    

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    🤖 This is an automated response from Repo Assist.

    I've submitted a third batch PR completing the design-parity work! This closes the remaining gap identified in the analysis.

    Batch 3: final 6 functions

    Added	Notes
    insertManyAt	Inserts multiple values before the element at the given index — mirrors Seq.insertManyAt / TaskSeq.insertManyAt
    removeManyAt	Removes a run of elements starting at the given index — mirrors Seq.removeManyAt / TaskSeq.removeManyAt
    box	Boxes each element to obj
    unbox<'T>	Unboxes each obj element to 'T
    cast<'T>	Dynamically casts each obj element to 'T
    lengthOrMax	Counts up to a maximum, avoiding full enumeration of long/infinite sequences

    All 341 tests pass. Version bumped to 4.11.0.

    Note on exceptOfSeq: AsyncSeq.except already accepts seq<'T> for the excluded collection, so no separate exceptOfSeq alias is needed — it was already covered.

    Design-parity summary across all three batches

    • PR [Repo Assist] Add AsyncSeq.withCancellation (design parity with TaskSeq, #277) #278 (merged): withCancellation
    • PR [Repo Assist] Design parity with TaskSeq, batch 2 (#277) #281 (open): tryTail, where/whereAsync, lengthBy/lengthByAsync, compareWith/compareWithAsync, takeWhileInclusiveAsync, skipWhileInclusive/skipWhileInclusiveAsync, appendSeq/prependSeq, delay, collectAsync, partition/partitionAsync
    • Batch 3 PR (just opened): insertManyAt, removeManyAt, box, unbox, cast, lengthOrMax

    The gap analysis is now complete — all actionable TaskSeq functions have been ported or confirmed as already present.

    Generated by Repo Assist for issue #277 · ◷

    To install this agentic workflow, run

    gh aw add githubnext/agentics/workflows/repo-assist.md@346204513ecfa08b81566450d7d599556807389f
    
13. dsyme

    closed this as completedin #281on Mar 23, 2026
14. dsyme

    added 2 commits that reference this issue on Mar 23, 2026

    Merge pull request #281 from fsprojects/repo-assist/design-parity-277…

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    4ed6953

    [Repo Assist] Add AsyncSeq.withCancellation (design parity with TaskS…

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    3249128