Inside Claude Code's deep-research Skill: 349 Lines, 3 Adversarial Verifier Votes per Claim

first_class_orgins · reddit · 2026-09-15

A developer reverse-engineers Claude Code's bundled deep-research skill (349 lines of JS, ported from "bughunter architecture") that produced a 27-source, 123-claim report in one run. Key takeaways: three isomorphic prompts (role/context/task/decision-criterion/format), hard rules like "default to refuted=true", tuning constants at the top, per-agent JSON schemas, prompts as functions, explicit pipeline/parallel orchestration with an intentional barrier, and defensive early exits — a blueprint for building robust multi-agent skills.

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