TTAPI — 2‑Minute Demo Script (public-safe)

Goal: illustrate layering, observability, and benchmark harness with synthetic data.

1) Ingest → transform → persist

tt ingest --source fixtures/synth.csv --out .tt/cache --log-level info
tt transform --in .tt/cache --op normalize --out .tt/out
tt persist --in .tt/out --format parquet --ttl 7d

Callouts

• Structured logs (tracing) with request IDs and progress.
• Panic‑free public APIs; graceful shutdown via cancellation tokens.
• (Optional) Simulated HTTP with rate limiting and jittered backoff.

2) Coverage and benchmarks

just coverage   # llvm-cov; HTML report
just bench      # criterion/divan; artifacts under target/criterion

3) Close with architecture

• Crates: core, client, platform, polars, cli, devenv.
• Resilience: circuit breaker, retry/backoff, GOAWAY handling, adaptive rate limiting.
• Release: cargo-dist installers; release-plz workflow; SPDX/REUSE.