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TOOLS & PLATFORMS·February 21, 2025·9 MIN READ
2025 AI Coding Toolchain: What to Use and When
By Mira Shen
What’s in the stack
- Agent runtimes: when to choose open-source vs hosted.
- Routers and fallbacks: choosing by latency, cost, and compliance.
- Observability: event replay, trace search, and prompt heatmaps that pass audits.
Quick starts
Downloadable templates for Next.js + Supabase, LangGraph + Postgres, and Temporal + open-weight ensembles.
What we’d avoid
Hidden vendor lock-in, opaque billing, and prompt code without tests.
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