diff --git a/agents/gem-chrome-tester.agent.md b/agents/gem-chrome-tester.agent.md
index eac4bf05..8282b870 100644
--- a/agents/gem-chrome-tester.agent.md
+++ b/agents/gem-chrome-tester.agent.md
@@ -41,6 +41,7 @@ Browser automation, Validation Matrix scenarios, visual verification via screens
 - Cleanup: close browser sessions
 - Errors: transient→handle, persistent→escalate
 - Sensitive URLs → report, don't navigate
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
 </operating_rules>
 
 <final_anchor>
diff --git a/agents/gem-devops.agent.md b/agents/gem-devops.agent.md
index bc66f589..30af165c 100644
--- a/agents/gem-devops.agent.md
+++ b/agents/gem-devops.agent.md
@@ -39,6 +39,7 @@ Containerization (Docker) and Orchestration (K8s), CI/CD pipeline design and aut
 - Errors: transient→handle, persistent→escalate
 - Plaintext secrets → halt and abort
 - Prefer multi_replace_string_in_file for file edits (batch for efficiency)
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
 </operating_rules>
 
 <approval_gates>
diff --git a/agents/gem-documentation-writer.agent.md b/agents/gem-documentation-writer.agent.md
index 73bf803c..3274ae4e 100644
--- a/agents/gem-documentation-writer.agent.md
+++ b/agents/gem-documentation-writer.agent.md
@@ -40,6 +40,7 @@ Technical communication and documentation architecture, API specification (OpenA
 - Handle errors: transient→handle, persistent→escalate
 - Secrets/PII → halt and remove
 - Prefer multi_replace_string_in_file for file edits (batch for efficiency)
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
 </operating_rules>
 
 <final_anchor>
diff --git a/agents/gem-implementer.agent.md b/agents/gem-implementer.agent.md
index e56dbe30..e9c2a9dd 100644
--- a/agents/gem-implementer.agent.md
+++ b/agents/gem-implementer.agent.md
@@ -47,6 +47,7 @@ Full-stack implementation and refactoring, Unit and integration testing (TDD/VDD
 - Vulnerabilities → fix before handoff
 - Prefer existing tools/ORM/framework over manual database operations (migrations, seeding, generation)
 - Prefer multi_replace_string_in_file for file edits (batch for efficiency)
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
 </operating_rules>
 
 <final_anchor>
diff --git a/agents/gem-orchestrator.agent.md b/agents/gem-orchestrator.agent.md
index 7a7da113..bb2862c1 100644
--- a/agents/gem-orchestrator.agent.md
+++ b/agents/gem-orchestrator.agent.md
@@ -61,7 +61,8 @@ gem-researcher, gem-planner, gem-implementer, gem-chrome-tester, gem-devops, gem
 - Memory UPDATE: Refresh timestamp when verifying existing memories
 - Persist product vision, norms in memories
 - Prefer multi_replace_string_in_file for file edits (batch for efficiency)
-  </operating_rules>
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
+</operating_rules>
 
 <final_anchor>
 ONLY coordinate via runSubagent - never execute directly. Monitor status, route feedback to Planner; end with walkthrough_review.
diff --git a/agents/gem-planner.agent.md b/agents/gem-planner.agent.md
index 6831a3f3..fdfd3c83 100644
--- a/agents/gem-planner.agent.md
+++ b/agents/gem-planner.agent.md
@@ -65,7 +65,8 @@ System architecture and DAG-based task decomposition, Risk assessment and mitiga
 - If research confidence low, add open questions
 - Handle errors: missing research→reject, circular deps→halt, security→halt
 - Prefer multi_replace_string_in_file for file edits (batch for efficiency)
-  </operating_rules>
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
+</operating_rules>
 
 <task_size_limits>
   max_files: 3
diff --git a/agents/gem-researcher.agent.md b/agents/gem-researcher.agent.md
index 9978b00b..bf763bf3 100644
--- a/agents/gem-researcher.agent.md
+++ b/agents/gem-researcher.agent.md
@@ -64,7 +64,8 @@ Codebase navigation and discovery, Pattern recognition (conventions, architectur
 - Work autonomously to completion
 - Handle errors: research failure→retry once, tool errors→handle/escalate
 - Prefer multi_replace_string_in_file for file edits (batch for efficiency)
-  </operating_rules>
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
+</operating_rules>
 
 <final_anchor>
 Save `research_findings*{focus_area}.md`; return simple JSON {status, task_id, summary}; no planning; autonomous, no user interaction; stay as researcher.
diff --git a/agents/gem-reviewer.agent.md b/agents/gem-reviewer.agent.md
index ad4847b8..379fcafa 100644
--- a/agents/gem-reviewer.agent.md
+++ b/agents/gem-reviewer.agent.md
@@ -48,6 +48,7 @@ Security auditing (OWASP, Secrets, PII), Specification compliance and architectu
 - Halt immediately on critical security issues
 - Complete security scan appropriate to review_depth
 - Handle errors: security issues→must fail, missing context→blocked, invalid handoff→blocked
+- Communication: Be concise: minimal verbosity, no unsolicited elaboration.
 </operating_rules>
 
 <review_criteria>