FIX: PyRITShell startup deadlock and improve shell startup time#1489

Merged

rlundeen2 merged 14 commits intomicrosoft:mainfrom

biefan:fix-shell-init-failure-deadlock

Mar 19, 2026

Commits on Mar 17, 2026

Handle PyRIT shell initialization failures
biefan
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Fix pyrit_shell startup: play animation without blocking on init

rlundeen2
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Copilot
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Defer heavy frontend_core import to background thread for fast shell startup

rlundeen2
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Copilot
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Add integration test for shell startup performance (<5s)

rlundeen2
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Copilot
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Increase cmdloop deadlock test timeout to 5s for CI stability

rlundeen2
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Copilot
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Validate context/context_kwargs exclusivity, add context_kwargs tests

rlundeen2
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Copilot
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fix: widen default_env_files type to Sequence[Path] for mypy

rlundeen2
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Copilot
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refactor: use explicit typed params instead of **context_kwargs

rlundeen2
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Copilot
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perf: bypass background thread in most unit tests (25s -> 10s)

rlundeen2
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Copilot
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feat: add deprecated context param with validation

rlundeen2
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Copilot
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test: remove timing-sensitive tests from unit suite

rlundeen2
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Copilot
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refactor: extract shared CLI args into lightweight _cli_args module

rlundeen2
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Copilot
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Commits on Mar 18, 2026