diff --git a/src/core/templates/skill-templates.ts b/src/core/templates/skill-templates.ts
index 7e1471710..8bfb18a93 100644
--- a/src/core/templates/skill-templates.ts
+++ b/src/core/templates/skill-templates.ts
@@ -2155,7 +2155,7 @@ export function getArchiveChangeSkillTemplate(): SkillTemplate {
    - If changes needed: "Sync now (recommended)", "Archive without syncing"
    - If already synced: "Archive now", "Sync anyway", "Cancel"
 
-   If user chooses sync, execute /opsx:sync logic (use the openspec-sync-specs skill). Proceed to archive regardless of choice.
+   If user chooses sync, use Task tool (subagent_type: "general-purpose", prompt: "Use Skill tool to invoke openspec-sync-specs for change '<name>'. Delta spec analysis: <include the analyzed delta spec summary>"). Proceed to archive regardless of choice.
 
 5. **Perform the archive**
 
@@ -2832,7 +2832,7 @@ export function getOpsxArchiveCommandTemplate(): CommandTemplate {
    - If changes needed: "Sync now (recommended)", "Archive without syncing"
    - If already synced: "Archive now", "Sync anyway", "Cancel"
 
-   If user chooses sync, execute \`/opsx:sync\` logic. Proceed to archive regardless of choice.
+   If user chooses sync, use Task tool (subagent_type: "general-purpose", prompt: "Use Skill tool to invoke openspec-sync-specs for change '<name>'. Delta spec analysis: <include the analyzed delta spec summary>"). Proceed to archive regardless of choice.
 
 5. **Perform the archive**
 
@@ -2926,7 +2926,7 @@ Target archive directory already exists.
 - Don't block archive on warnings - just inform and confirm
 - Preserve .openspec.yaml when moving to archive (it moves with the directory)
 - Show clear summary of what happened
-- If sync is requested, use /opsx:sync approach (agent-driven)
+- If sync is requested, use the Skill tool to invoke \`openspec-sync-specs\` (agent-driven)
 - If delta specs exist, always run the sync assessment and show the combined summary before prompting`
   };
 }