diff --git a/docs/P2.md b/docs/P2.md
index bdb7d1d..c2c58e9 100644
--- a/docs/P2.md
+++ b/docs/P2.md
@@ -36,7 +36,7 @@ In: `/v1/fetch` `mode=digest` + `question`; `context` (Honcho search); `recover`
 `--recover`; size/latency metrics. `/v2/scrape` is unchanged (the Firecrawl contract has no
 question field) — Hermes keeps getting `clean` there.
 
-Out: `search` (P3), cache (P4), knowledge graph.
+Out: `search` (P3), URL→content fetch cache (P4), knowledge graph. (Digest + chunk-embedding caches are in P2, §2a.)
 
 **Exit criteria** (evidence in the ~dev thread):
 1. `make test lint contract` green (new tests in §7).