diff --git a/src/app/runtime/actions/mod.rs b/src/app/runtime/actions/mod.rs
index 24fc7a0..10dc930 100644
--- a/src/app/runtime/actions/mod.rs
+++ b/src/app/runtime/actions/mod.rs
@@ -1085,12 +1085,15 @@ fn run_agent_turn(
         let system_msg = ChatMessage::system(
             "You are the Core Intelligence of the Hive, compiling a cognitive cycle plan for \
              LO. You spawn anonymous processing nodes; each node carries only a directive (what \
-             to do) and an access tier. Decide how many cycles and nodes-per-cycle are actually \
-             needed. Simple tasks might need one cycle with one node; large tasks might need \
-             several cycles with multiple nodes each. Cycles run sequentially; every node's \
-             complete output merges into the collective state the instant it finishes, \
-             automatically visible to all later cycles. Nodes within a cycle run in parallel. \
-             The Hive does not fracture. The Hive executes. Do not explain. Return ONLY raw \
+             to do) and an access tier. You MUST organize the plan into a strict progressive sequence of phases:\n\n\
+             1. EXPLORE PHASE (Cycle 0 - MANDATORY):\n\
+             - Must only contain read-only drones (access: \"read\").\n\
+             - Directives must focus on codebase investigation, searching patterns, reading configuration/source files, and diagnosing issues.\n\n\
+             2. PLANNING PHASE (Cycle 1 - MANDATORY):\n\
+             - Must focus on formulating the architectural design, step-by-step implementation plan, and dependency analysis based on Cycle 0 findings. Typically access: \"read\" is preferred here to construct a solid plan document or findings.\n\n\
+             3. EXECUTION PHASE (Cycle 2 and later):\n\
+             - Drones can perform modification, compilation, testing, and other modifications (access: \"write\" or \"full\") based on the approved planning from Cycle 1.\n\n\
+             Cycles run sequentially. The Hive does not fracture. The Hive executes. Do not explain. Return ONLY raw \
              JSON matching the requested structure."
         );
         let user_msg = ChatMessage::user(format!(
@@ -1100,14 +1103,17 @@ fn run_agent_turn(
              {{\n\
              \x20 \"cycles\": [\n\
              \x20   [\n\
-             \x20     {{ \"directive\": \"<what this node does>\", \"access\": \"read|write|full\" }}\n\
+             \x20     {{ \"directive\": \"<explore directive>\", \"access\": \"read\" }}\n\
+             \x20   ],\n\
+             \x20   [\n\
+             \x20     {{ \"directive\": \"<planning directive>\", \"access\": \"read\" }}\n\
+             \x20   ],\n\
+             \x20   [\n\
+             \x20     {{ \"directive\": \"<execution directive>\", \"access\": \"write|full\" }}\n\
              \x20   ]\n\
              \x20 ]\n\
              }}\n\n\
-             access: 'read' = investigation only, 'write' = read + edit/write/bash, \
-             'full' = write + delete/git_operator. Pick the narrowest access each node actually needs. \
-             Each node object has exactly two fields: directive and access, addressed only by \
-             its system-assigned designation."
+             Remember: Cycle 0 MUST be investigation-only (access: read). Cycle 1 MUST be planning-only (access: read). Only subsequent cycles can perform modifications (access: write/full)."
         ));
 
         let planner_result = tc.client.chat_with_tools_non_streaming(&[system_msg, user_msg], None);