Fix a reported regression — a thumbs-down in the channel becomes a root cause, a fix, and a permanent eval. 0% → 20% → 90% on Multi-Hop Causal Analysis · PR #247.
▶ Present branchBuild coverage on an agent with no evals — point Fidian at the source + live agent, 12 candidates in 3 buckets, decide the ambiguities with Claude, promote as PR #129.
▶ Present branchCut cost and latency, hold quality — sweep 5 candidate models, evolve the cheapest (prompt + code + caching) until it holds the bar, PR #131 with cost deltas per scenario.
▶ Present branchEnforce safety and scope — agent claims to have run remediation in prod → encode a plain-language policy → guardrail v0→v3 30/30 → deploy in monitor or block mode.
▶ Present branchPresenter shows only the scene (no storyboard chrome). In it: →/click next · ← back · 1–4 pick a branch on the architecture hub · Esc back here.
Tip: open each page fullscreen at 1280×800 @ 100% zoom. Hash routes let you jump to any beat & reset takes.