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`pithy add` installs a package, writes bindings across every environment, runs migrations — and refuses, loudly, in the two places where guessing would be worse than stopping.
Citty, picocolors and clack — chosen for cold start, size and how they fail — plus why every command owes `--json` to an agent driving it.
One error type, one schema, and a wire shape with nowhere to put the things a caller must never see.
Keys built from a schema, values validated both ways, and a list that quietly repairs the metadata the Cloudflare dashboard throws away.
Migrations composed per capability and ordered once — and a driver change that took 78% of a test suite's wall time back.
TypeScript 7, Bun, Turborepo, tsdown, Vitest and Biome — including what the losing options still do better. Then the part that surprised us: GritQL plugins enforcing rules a type system cannot.
Parameter budgets, transient faults, SQLite's missing types and pagination that holds still under writes. Solved once in core, so every capability inherits them.
One rule about what a capability may import, and what it buys — including why a management client gets its own request variable rather than borrowing the user's.