refactor(core): migrate LLM provider layer from Vercel AI SDK to pi-ai#1206

Merged

christso merged 20 commits intomainfrom

refactor/1205-pi-ai-spike

May 4, 2026

Commits on May 3, 2026

refactor(core): treat pi-ai as a normal dep — drop dynamic-import dance

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refactor(core): pre-resolve pi-ai Model in OpenAIProvider constructor

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fix(cli): declare @mariozechner/pi-ai as a runtime dep

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feat(core): teach Provider.invoke about tools + multi-step

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refactor(core): migrate all grader consumers off asLanguageModel

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refactor(core): drop ai-sdk entirely; all providers on pi-ai

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chore(core): rename ai-sdk.ts → llm-providers.ts; add pi-ai-shim sync check

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fix(core): root-cause pi-ai type resolution; delete shim

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chore(core): freshen comments + per-provider fallback metadata + cast docs

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chore(core): simplify resolvePiModel fallback to universal 128K/16K

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docs: add MiMo targets to targets.yaml; document max_output_tokens for custom providers
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