diff --git a/docs/tess/MISSION-MANIFEST.md b/docs/tess/MISSION-MANIFEST.md
index 4e22d5a..a42996e 100644
--- a/docs/tess/MISSION-MANIFEST.md
+++ b/docs/tess/MISSION-MANIFEST.md
@@ -24,6 +24,7 @@ Ship Tess as Jason's durable Pi-native GPT-5.6 Sol high-reasoning interaction ag
 3. Mos owns coding/general fleet orchestration; Tess owns human interaction, visibility, mediation, and migration access.
 4. Runtime, transport, channel, memory, and external-agent integrations are replaceable adapters.
 5. No source task completes before merged PR, terminal-green CI, independent review, and linked task/issue closure.
+6. **The HMI agent's name/identity is configuration, never a hardcoded literal.** The agent name (display + roster key) is supplied at provisioning — user-chosen or system-generated during config — and carried as data in the roster/profile. "Tess" is only the default/example instance name and this mission's build codename; no source, schema key, service identifier, or config default may hardcode it. (M2 exit gate must prove a distinct name provisions cleanly with zero code change.)
 
 ## Milestones