diff --git a/docs/guard-inventory.md b/docs/guard-inventory.md
index 3a3bd57a9..81aa04cce 100644
--- a/docs/guard-inventory.md
+++ b/docs/guard-inventory.md
@@ -173,6 +173,17 @@ dangerous direction — a token that a reviewer means as `BLOCKED` silently read
 approval, which writes a green `review-verdict/h10`. A token added to one script and not the other
 is untested by either, which is the whole of #788.
 
+**A guard was WITHDRAWN from `test_hook_fire_log.py` after four iterations**, recorded here because
+this is where a future session will look for it. A `test_no_redirection_in_the_sink_PRECEDES_its_stderr_redirect`
+generalised the `exec … 2>/dev/null` rule to any command by pattern-matching shell source. Each
+iteration fixed a false positive or false negative the previous one introduced — `>/dev/null 2>&1`
+flagged wrongly, then operators preceded by a digit (`exec 0<`) missed entirely, then multi-command
+lines flagged wrongly — and cold review then constructed more of both (`[[ "$x" < "$y" ]] 2>/dev/null`,
+a backslash continuation, a `>` inside a quoted string). Deleted rather than patched a fifth time,
+on the same reasoning as the vocabulary-parity withdrawal above.
+
+**`test_hook_fire_log.py` asserts TWO clauses
+
 **That unproven set carries no number here on purpose.** It restated the count, drifted the moment
 the BOM guard was regraded, and `test_the_summary_counts_match_the_table` cannot see it — the parser
 checks the formatted summary sentence and nothing else. A second hand-maintained copy of a number is