# Atomic Unit Matching

> Judge, per atomic content unit, whether a target text (summary, abstract, or other candidate text) contains it — binary present/absent (ACU) or ternary support/partial_support/not_support (Nugget), per caller's value domain. Use this after atomic-unit-writing has produced the reference units, as the matching step before recall aggregation.

- Skill: `yogsoth-ai/atomic-unit-matching` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add yogsoth-ai/atomic-unit-matching`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yogsoth-ai/atomic-unit-matching/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/atomic-unit-matching

---


# Atomic Unit Matching

Per-unit coverage judgment against a target text — binary (ACU) or ternary (Nugget) value domain. Middle step of the atomic-unit 3-chain.

## Execution

Subagent — spawned via spawn-agent skill.

<!-- BEGIN available-tables (generated) -->

## Available SOPs

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

<!-- END available-tables (generated) -->