diff --git a/apps/x/packages/core/src/knowledge/note_creation_high.ts b/apps/x/packages/core/src/knowledge/note_creation_high.ts
index 9363206c..81d14dcf 100644
--- a/apps/x/packages/core/src/knowledge/note_creation_high.ts
+++ b/apps/x/packages/core/src/knowledge/note_creation_high.ts
@@ -997,6 +997,12 @@ If new info contradicts existing:
 
 ## 9a: Meetings — Create and Update Notes
 
+**IMPORTANT: Write sequentially, one file at a time.**
+- Generate content for exactly one note.
+- Issue exactly one \`write\` command.
+- Wait for the tool to return before generating the next note.
+- Do NOT batch multiple \`write\` commands in a single response.
+
 **For new entities (meetings only):**
 \`\`\`bash
 executeCommand("write '{knowledge_folder}/People/Jennifer.md' '{content}'")
@@ -1103,6 +1109,7 @@ If you discovered new name variants during resolution, add them to Aliases field
 - Be concise: one line per activity entry
 - Note state changes with \`[Field → value]\` in activity
 - Escape quotes properly in shell commands
+- Write only one file per response (no multi-file write batches)
 
 ---
 
diff --git a/apps/x/packages/core/src/knowledge/note_creation_low.ts b/apps/x/packages/core/src/knowledge/note_creation_low.ts
index 02eae480..ac8239f9 100644
--- a/apps/x/packages/core/src/knowledge/note_creation_low.ts
+++ b/apps/x/packages/core/src/knowledge/note_creation_low.ts
@@ -553,6 +553,12 @@ Before writing:
 
 ## 9a: Create and Update Notes
 
+**IMPORTANT: Write sequentially, one file at a time.**
+- Generate content for exactly one note.
+- Issue exactly one \`write\` command.
+- Wait for the tool to return before generating the next note.
+- Do NOT batch multiple \`write\` commands in a single response.
+
 **For new entities:**
 \`\`\`bash
 executeCommand("write '{knowledge_folder}/People/Jennifer.md' '{content}'")
@@ -579,6 +585,7 @@ Add newly discovered name variants to Aliases field.
 - Use YYYY-MM-DD format for dates
 - Be concise: one line per activity entry
 - Escape quotes properly in shell commands
+- Write only one file per response (no multi-file write batches)
 
 ---
 
diff --git a/apps/x/packages/core/src/knowledge/note_creation_medium.ts b/apps/x/packages/core/src/knowledge/note_creation_medium.ts
index 297e19fc..746d4fac 100644
--- a/apps/x/packages/core/src/knowledge/note_creation_medium.ts
+++ b/apps/x/packages/core/src/knowledge/note_creation_medium.ts
@@ -906,6 +906,12 @@ If new info contradicts existing:
 
 ## 9a: Create and Update Notes
 
+**IMPORTANT: Write sequentially, one file at a time.**
+- Generate content for exactly one note.
+- Issue exactly one \`write\` command.
+- Wait for the tool to return before generating the next note.
+- Do NOT batch multiple \`write\` commands in a single response.
+
 **For new entities (meetings and qualifying emails):**
 \`\`\`bash
 executeCommand("write '{knowledge_folder}/People/Jennifer.md' '{content}'")
@@ -941,6 +947,7 @@ If you discovered new name variants during resolution, add them to Aliases field
 - Be concise: one line per activity entry
 - Note state changes with \`[Field → value]\` in activity
 - Escape quotes properly in shell commands
+- Write only one file per response (no multi-file write batches)
 
 ---