diff --git a/AGENTS.md b/AGENTS.md
index 3abe7d8..35e5e62 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -55,7 +55,7 @@ This document provides context and best practices for GitHub Copilot when workin
 
 - Never leave tests failing, even if they appear unrelated to your changes
 - If a test failure is pre-existing, fix it as part of your current work
-- Run the full test suite (`npm test`) before considering any task complete
+- Run the full test suite (`mix test`) before considering any task complete
 - If you cannot fix a test, explain why and propose a solution
 
 > **Zero failing tests. No exceptions.**
@@ -106,7 +106,7 @@ This document provides context and best practices for GitHub Copilot when workin
 
 **All user-facing text MUST follow proper i18n patterns.**
 
-- Do not hardcode UI strings directly in React components, menu templates, dialogs, or toasts
+- Do not hardcode UI strings directly in LiveView/HEEx components, menu templates, dialogs, or toasts
 - Store UI copy in language resources and resolve text through i18n helpers/hooks
 - UI language MUST come from the operating system locale
 - Rendering/preview/generated-content language MUST come from project preferences (`mainLanguage`), not UI locale
diff --git a/TECHDEBTS.md b/TECHDEBTS.md
index d17c289..5c8a96f 100644
--- a/TECHDEBTS.md
+++ b/TECHDEBTS.md
@@ -887,7 +887,11 @@ call, and delete rescues that guard nothing. Shutdown.ex's rescues stay as-is
 **Acceptance.** No bare `rescue _ ->` without either a narrow exception match
 or a logged justification; suite green.
 
-### TD-24: Fix stale `npm test` reference in AGENTS.md
+### TD-24: Fix stale `npm test` reference in AGENTS.md ✅ DONE (2026-06-12)
+
+**Status: implemented.** `AGENTS.md` now tells agents to run `mix test`
+instead of the stale `npm test`, and the nearby UI i18n wording was updated to
+refer to LiveView/HEEx components rather than leftover React-era terminology.
 
 **Context.** AGENTS.md "Fix All Test Failures" section says "Run the full
 test suite (`npm test`)" — stale from the pre-Elixir rewrite. It's an