acu-nugget-recall

name	acu-nugget-recall
description	Tactic: Extract atomic units from one paper and score how much of a caller-supplied summary covers. Use for ACU-style binary or Nugget-style ternary recall checks; cannot run without a target summary.
version	1.0.0
category	paper-reading
type	tactic
execution	tactic
input	paper_ref (string), target_summary (string), method (string: "acu" | "nugget", default "acu")
output	three JSON files under context/papers/<dir>/acu-nugget-recall/
sops	["paper-fetch","atomic-unit-writing","atomic-unit-matching","atomic-unit-recall-aggregate"]
dependencies	{"sops":["paper-fetch","atomic-unit-writing","atomic-unit-matching","atomic-unit-recall-aggregate"]}

ACU / Nugget Recall

Orchestration Pattern

1. Require target_summary; never generate the scored summary inside this tactic.
2. Fetch the paper and create acu-nugget-recall/.
3. Extract units before exposing the summary to the unit-writing step. ACU uses extracted/binary units; Nugget uses authored, importance-tagged units.
4. Match all units against target_summary in one call.
5. Aggregate the results and write 03-recall-aggregate.json.

Write 01-atomic-unit-writing.json, 02-atomic-unit-matching.json, and 03-recall-aggregate.json. Record the summary source. Report every unmatched unit, not just the score. For a single-summary Nugget run, carry the method's weak per-topic reliability caveat alongside the number.