Pi is irrational ; Yeah is
· Zi Wang · 1 min read
Today's is Pi day (3.14), jot down Yeah's ADR (note to self: may need to account for capability & cost):
Orchestration: deterministic workflow scripts over model-directed control flow; fan-out to synthesis to adversarial verification; 3-staged pipeline vs. barrier semantics; resume-from-cache on edited scripts
Yeah production build = four-session agentic program in Claude Code:
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parallel subagent lanes, each isolated in its own git worktree so concurrent writers couldn't collide, coordinating through a non-deploying branch that acted as an append-only message bus with typed blocking dependencies.
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model-routing for each lane = registered before spawn with an objective, declared read/write paths, an acceptance test, a spend ceiling, and a model chosen by failure cost — Sonnet for mechanical generation, Opus for the money path and adversarial audits.
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Verification = adversarial by construction: three skeptics with different lenses had to fail to refute a finding before it survived, and OpenAI's Codex ran seven independent review passes over the specs.
When it is done, Yeah should be a system that turns YouTube creator reviews into source-cited buying verdicts.