# Third Pass Deep Read

> Keshav's third pass — the heaviest of the three, a full sentence-by-sentence re-read including proofs/derivations, attempting a virtual re-implementation of the paper to surface implicit assumptions and concrete improvement points. Use this after second-pass-grasp, as the terminal step of the Keshav three-pass method, whenever genuine mastery of a paper (not just a summary) is needed. This is not a skippable recap — treat "nothing new to add" as suspicious, not a default outcome.

- Skill: `yogsoth-ai/third-pass-deep-read` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add yogsoth-ai/third-pass-deep-read`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yogsoth-ai/third-pass-deep-read/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: yogsoth-ai (https://skillmd.com/u/yogsoth-ai)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yogsoth-ai/third-pass-deep-read

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# Third Pass Deep Read

Keshav's third pass: sentence-by-sentence re-read with proofs/derivations included, attempting virtual re-implementation. The heaviest pass of the three — terminal step of the Keshav cascade.

## Execution

Subagent — spawned via spawn-agent skill.

## Why renamed from `third-pass-verify` (v1's name)

v1's version of this SOP (`staged/wechat-article-v1/skills/third-pass-verify/`) treated this as a "targeted re-check of uncertain_fields, no-op if none flagged" step — which, per the coverage audit's S2 finding, effectively deleted Keshav's real third pass (a 4-5+ hour re-implementation attempt) and replaced it with a cheap verification step serving v1's own pipeline. This v2 SOP restores the actual third pass; the rename to `third-pass-deep-read` marks that this is not the same behavior as the old `third-pass-verify`, even though both sit in the same cascade position.

## Why Subagent

A genuine re-implementation attempt needs a context that can hold the full paper and reason through design alternatives without being anchored to how pass 2 already framed the contribution.

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## Available SOPs

Optional, no fixed order; the final leaf is always a sop.

| SOP | When to use |
| --- | --- |
| spawn-agent | Spawn a customized CC subagent with full MCP tool access. |

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