diff --git a/.roborev.toml b/.roborev.toml
index 7b16901..a6cad57 100644
--- a/.roborev.toml
+++ b/.roborev.toml
@@ -2,7 +2,9 @@
 # Reviews are queued to a background daemon -- they never block a commit.
 
 post_commit_review = 'commit'
-excluded_commit_patterns = ['WIP', 'chore:', 'docs:', 'Merge ']
+# Scoped conventional commits (`chore(packaging):`) do not contain `chore:`,
+# and this repo's cadence rule mandates the scope -- so both forms are listed.
+excluded_commit_patterns = ['WIP', 'chore:', 'chore(', 'docs:', 'docs(', 'Merge ']
 
 review_guidelines = '''
 # --- compass:begin (generated -- edit the sources, not this) ---
diff --git a/AGENTS.md b/AGENTS.md
index c8f2951..64cc3d3 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -35,6 +35,12 @@ type(ws): subject (#N)
 
 ## Conventions
 
+`pm/compass.toml` is authoritative for these rules. Its `[roborev]
+project_guidelines` are composed into `.roborev.toml`, so change them there and
+re-run compass rather than editing `.roborev.toml` by hand. The prose below is the
+same rules stated for a human reader; if the two ever disagree, `pm/compass.toml`
+wins.
+
 **Dependencies.** Base R plus ggplot2 (>= 4.0), grid/gridExtra, png/jpeg, stringr,
 stringdist, showtext/sysfonts, jsonlite. No tidyverse: no dplyr, purrr, magrittr,
 tibble, or data.table. Prefer an existing dependency or base R over adding one —