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.NET & Python: [Durable Agents] Automatic thread/session cleanup TTL #2615

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.NET & Python: [Durable Agents] Automatic thread/session cleanup TTL#2615
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ahmedmuhsin
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.NETUsage: [Issues, PRs], Target: .NetdurabletaskUsage: [Issues, PRs], Target: durable taskhostingUsage: [Issues, PRs], Target: all hosting related solutionspythonUsage: [Issues, PRs], Target: Python

Description

@cgillum
Chris Gillum (cgillum)
opened on Dec 3, 2025

The Durable Task extension for Agent Framework ("Durable Agents") provides built-in thread storage. However, there's no clear way to cleanup the thread storage data, which will accumulate in either the Azure Storage account or in the Durable Task Scheduler resource owned by the user.

This issue tracks a proposal to create configurable TTLs on durable agents that allow them to be "garbage collected" if there aren't any interactions after a period of time. For example, if a particular agent session is idle for 30 days, the underlying entity state (e.g., the conversation history) gets deleted. Each new interaction with the agent would reset the TTL. Any messages to an "expired" agent session will result in a new conversation history.

Design doc

This is needed for each language we support:

  • .NET
  • Python

Activity

  1. Chris Gillum (cgillum)
    added
    pythonUsage: [Issues, PRs], Target: Python
    .NETUsage: [Issues, PRs], Target: .Net
    azure-functions
    on Dec 3, 2025
  2. github-actions
    changed the title [-][Durable Agents] Automatic thread/session cleanup TTL[/-] [+].NET: [Durable Agents] Automatic thread/session cleanup TTL[/+] on Dec 3, 2025
  3. github-actions
    changed the title [-].NET: [Durable Agents] Automatic thread/session cleanup TTL[/-] [+]Python: [Durable Agents] Automatic thread/session cleanup TTL[/+] on Dec 3, 2025
  4. Chris Gillum (cgillum)
    added this to Agent Frameworkon Dec 3, 2025
  5. Chris Gillum (cgillum)
    changed the title [-]Python: [Durable Agents] Automatic thread/session cleanup TTL[/-] [+].NET & Python: [Durable Agents] Automatic thread/session cleanup TTL[/+] on Dec 3, 2025
  6. Laveesh Rohra (larohra)
    linked a pull request that will close this issue.NET: Add TTLs to durable agent sessions #2679on Dec 9, 2025
  7. Laveesh Rohra (larohra)
    removed a link to a pull request.NET: Add TTLs to durable agent sessions #2679on Dec 9, 2025
  8. Laveesh Rohra (larohra)
    assigned
    Gavin Aguiar (gavin-aguiar)
    on Dec 18, 2025
  9. Anthony Chu (anthonychu)
    moved this to In Progress in Agent Frameworkon Jan 9, 2026

  10. eavanvalkenburg commented on Jun 2, 2026

    @eavanvalkenburg
    Eduard van Valkenburg (eavanvalkenburg)
    on Jun 2, 2026
    Member

    is this still relevant Gavin Aguiar (@gavin-aguiar) Laveesh Rohra (@larohra) Anthony Chu (@anthonychu) Chris Gillum (@cgillum)

  11. cgillum commented on Jun 2, 2026

    @cgillum
    Chris Gillum (cgillum)
    on Jun 2, 2026
    MemberAuthor

    Yes I believe this is still relevant. Gavin Aguiar (@gavin-aguiar) are you still the right owner or should it be Ahmed Muhsin (@ahmedmuhsin)?

  12. gavin-aguiar commented on Jun 2, 2026

    @gavin-aguiar
    Gavin Aguiar (gavin-aguiar)
    on Jun 2, 2026
    Contributor

    Ahmed Muhsin (@ahmedmuhsin) will work on this. Assigning it to him

  13. Gavin Aguiar (gavin-aguiar)
    assigned
    Ahmed Muhsin (ahmedmuhsin)
    and unassigned
    Gavin Aguiar (gavin-aguiar)
    on Jun 2, 2026
  14. Evan Mattson (moonbox3)
    added
    hostingUsage: [Issues, PRs], Target: all hosting related solutions
    and removed
    azure-functions
    on Jun 17, 2026
  15. Chris Gillum (cgillum)
    added
    durabletaskUsage: [Issues, PRs], Target: durable task
    on Jun 22, 2026

  16. larohra commented on Jul 13, 2026

    @larohra
    Laveesh Rohra (larohra)
    on Jul 13, 2026
    Contributor

    Feature not available in AFD package, dependency on the new durabletask package. More info here - Entity to Entity Signaling in AFD vs new package

    Teams conversation - https://teams.microsoft.com/l/message/19:meeting_ODFiNGE3NWYtMDYwZC00NTExLTlmYzEtNTdkNWVmODM5ODVj@thread.v2/1783986889670?context=%7B%22contextType%22%3A%22chat%22%7D

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.NETUsage: [Issues, PRs], Target: .NetdurabletaskUsage: [Issues, PRs], Target: durable taskhostingUsage: [Issues, PRs], Target: all hosting related solutionspythonUsage: [Issues, PRs], Target: Python

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