Issues

• Memcode tool example for persistent user context in Marvin agents

  PrefectHQ/marvin#1405 · Filter by author vivekgupta-memcode opened on Sep 28, 2026

• EvalPort: portable interchange for Task/TaskState results

  PrefectHQ/marvin#1404 · Filter by author adhabnr-ux opened on Sep 27, 2026

• docs: two live links now return 404 (ControlFlow and Slack invite)

  PrefectHQ/marvin#1397 · Filter by author auroraxo opened on Sep 13, 2026

• On Windows tzdata is required

  PrefectHQ/marvin#1383 · Filter by author mardukbp opened on Aug 21, 2026
  1

• Marvin 3.2.7 is not compatible with pydantic-ai 2.33.0

  PrefectHQ/marvin#1382 · Filter by author mardukbp opened on Aug 21, 2026

• Feature: Persistent memory backend for Marvin agents via Dakera

  PrefectHQ/marvin#1360 · Filter by author ferhimedamine opened on Jul 1, 2026
  1

• fix: IndexError in is_classifier/as_classifier with bare typing.List

  PrefectHQ/marvin#1355 · Filter by author devteamaegis opened on Jun 1, 2026
  1

• BUG: IndexError in schema_to_type() when type list contains only "null"

  PrefectHQ/marvin#1353 · Filter by author devteamaegis opened on Jun 1, 2026
  1

• BUG: TypeError crash in create_array_type() when items is an empty list

  PrefectHQ/marvin#1351 · Filter by author devteamaegis opened on May 31, 2026
  1

• Feature request: OWASP ASI06 memory poisoning defense for Marvin AI functions

  PrefectHQ/marvin#1347 · Filter by author vgudur-dev opened on May 21, 2026

• BinaryImage causes token explosion when passed to marvin.cast()

  PrefectHQ/marvin#1246 · Filter by author zzstoatzz opened on Nov 18, 2025
  1

• 3.0 breaking changes

  maintenance
  PrefectHQ/marvin#1072 · Filter by author zzstoatzz opened on Feb 27, 2025

• How can we batch requests?

  enhancement
  PrefectHQ/marvin#971 · Filter by author thisismygitrepo opened on Sep 17, 2024
  2

• from __future__ import annotations causes ai functions to return strings

  bug
  PrefectHQ/marvin#950 · Filter by author jimkring opened on Jul 14, 2024
  8

• Invalid schema error with complex types

  bug
  PrefectHQ/marvin#946 · Filter by author oohmygaud opened on Jun 28, 2024
  2

• Support for windows - marvin version command throws certificate error

  bug
  PrefectHQ/marvin#943 · Filter by author kishankarun opened on Jun 27, 2024
  1

• Limiting the attempts of updating the application state

  enhancement
  PrefectHQ/marvin#938 · Filter by author ar0it opened on Jun 17, 2024

• Loading Image from file raises ValueError

  bug
  PrefectHQ/marvin#933 · Filter by author except-pass opened on May 30, 2024

• An 'IndexError' is thrown when executing the AI-powered function

  bug
  PrefectHQ/marvin#931 · Filter by author jianzs opened on May 24, 2024
  2

• Getting the error - ThreadMessage ImportError: cannot import name 'ThreadMessage' from 'openai.types.beta.threads' on python 3.10 version after installing llama-parse and llama-index libraries

  bug
  PrefectHQ/marvin#900 · Filter by author GildeshAbhay opened on Apr 4, 2024
  1

• Allow local function calling?

  question
  PrefectHQ/marvin#889 · Filter by author jeffometer opened on Mar 27, 2024
  3

• Estimate token usage, cost

  PrefectHQ/marvin#870 · Filter by author pengelbrecht opened on Mar 14, 2024
  6

• Using OpenAI tools with Assistant fails

  bug
  PrefectHQ/marvin#852 · Filter by author Fakamoto opened on Feb 16, 2024
  2

• Marvin Speak Language Selection

  enhancementfeature
  PrefectHQ/marvin#837 · Filter by author nicholastrofin opened on Feb 10, 2024
  1

• Defining ai_fn at runtime

  enhancementfeature
  PrefectHQ/marvin#831 · Filter by author pietz opened on Feb 6, 2024
  7