diff --git a/pstack/skills/interrogate/SKILL.md b/pstack/skills/interrogate/SKILL.md
index 5cda963..9bd9104 100644
--- a/pstack/skills/interrogate/SKILL.md
+++ b/pstack/skills/interrogate/SKILL.md
@@ -46,7 +46,7 @@ For each reviewer:
 - `model`: the configured `interrogate reviewers` entry, or the table default with no configured line
 - `readonly`: `true`
 
-If a model slug is rejected as unresolvable when you try to spawn the subagent, check the valid slugs in the Task tool's error message, pick the closest equivalent (prefer the highest-reasoning tier of the same family), spawn with the valid slug, and open a separate PR to update the configured value or default table. Do not block the review on the slug issue.
+If a model slug is rejected as unresolvable when you try to spawn the subagent, check the valid slugs in the Task tool's error message, pick the closest equivalent (prefer the highest-reasoning tier of the same family), spawn with the valid slug, and open a separate PR to update the configured value or default table. Do not block the review on the slug issue. If the configured value is `inherit-parent` or `auto`, omit `model` instead; never treat those aliases as broken slugs or enter this fallback for them.
 
 Read `references/reviewer-prompt.md` and fill in the template with:
 1. The stated intent