Add Pi extensions and same-run add_tool to CUA CLI#41

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rgarcia wants to merge 18 commits into

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hypeship/harness-extension-host

Commits on Jul 10, 2026

Add Tier-A pi extension host for CuaAgentHarness

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Harden extension-host tool reapply, reload, and prompt paths

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Add e2e self-improve loop tests for the extension host

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Drop removed extension tools on reload

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Wire the pi extension host into the cua CLI runtime

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Load project-local extensions by default; drop trust gating

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Recommend claude-opus-4-8 in cli --help and README

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Add opt-in runtime tool authoring (--self-extend)

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Harden extension-host lifecycle (load/reload/dispose)

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Coalesce reentrant reloads; don't drop extension prompt rejections

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Settle reloads on dispose and fix first-turn screenshot ownership

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Harden extension reapply/load/reload error paths

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Remove merged tools from the harness on dispose

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Adapt extension-host tests to the instance-based scripted-provider fixture

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