diff --git a/cmd/olliesrv/internal/backend/backend.go b/cmd/olliesrv/internal/backend/backend.go
index 9938ef5..ea2aa76 100644
--- a/cmd/olliesrv/internal/backend/backend.go
+++ b/cmd/olliesrv/internal/backend/backend.go
@@ -154,7 +154,7 @@ type GenerationParams struct {
 	FrequencyPenalty    *float64 `json:"frequencyPenalty,omitempty"`
 	PresencePenalty     *float64 `json:"presencePenalty,omitempty"`
 	RepetitionPenalty   *float64 `json:"repetitionPenalty,omitempty"`
-	ThinkingBudget      int      `json:"reasoning,omitempty"`
+	ThinkingBudget      int      `json:"thinkingBudget,omitempty"`
 	ReasoningEffort     string   `json:"reasoningEffort,omitempty"`
 	IncludeReasoning    *bool    `json:"includeReasoning,omitempty"`
 	ResponseFormat      string   `json:"responseFormat,omitempty"`
diff --git a/data/agents/author.json b/data/agents/author.json
index 5b46ffe..7bab09f 100644
--- a/data/agents/author.json
+++ b/data/agents/author.json
@@ -30,5 +30,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "medium"
 }
diff --git a/data/agents/conductor.json b/data/agents/conductor.json
index ad462b1..f6e7cc2 100644
--- a/data/agents/conductor.json
+++ b/data/agents/conductor.json
@@ -28,5 +28,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "high"
 }
diff --git a/data/agents/copilot.json b/data/agents/copilot.json
index 144e5d1..dafec39 100644
--- a/data/agents/copilot.json
+++ b/data/agents/copilot.json
@@ -26,5 +26,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 8192
+  "maxTokens": 8192,
+  "reasoningEffort": "low"
 }
diff --git a/data/agents/default.json b/data/agents/default.json
index dc13020..b442ff6 100644
--- a/data/agents/default.json
+++ b/data/agents/default.json
@@ -33,5 +33,6 @@
     "lsp_symbols"
   ],
   "temperature": 0.5,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "medium"
 }
diff --git a/data/agents/driver.json b/data/agents/driver.json
index 036dd45..3f2bd5c 100644
--- a/data/agents/driver.json
+++ b/data/agents/driver.json
@@ -44,5 +44,6 @@
   "backend": "openrouter",
   "model": "deepseek/deepseek-v4-flash",
   "temperature": 0.4,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "high"
 }
diff --git a/data/agents/explorer.json b/data/agents/explorer.json
index d7f8fb7..0f81742 100644
--- a/data/agents/explorer.json
+++ b/data/agents/explorer.json
@@ -26,5 +26,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "medium"
 }
diff --git a/data/agents/foreman.json b/data/agents/foreman.json
index a01e189..0ba31f4 100644
--- a/data/agents/foreman.json
+++ b/data/agents/foreman.json
@@ -17,5 +17,6 @@
     "file_grep"
   ],
   "temperature": 0.3,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "high"
 }
diff --git a/data/agents/librarian.json b/data/agents/librarian.json
index c136058..3b182f8 100644
--- a/data/agents/librarian.json
+++ b/data/agents/librarian.json
@@ -17,5 +17,6 @@
     "codebase_overview"
   ],
   "temperature": 0.3,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "medium"
 }
diff --git a/data/agents/navigator.json b/data/agents/navigator.json
index b159ebf..67f6c87 100644
--- a/data/agents/navigator.json
+++ b/data/agents/navigator.json
@@ -26,5 +26,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 8192
+  "maxTokens": 8192,
+  "reasoningEffort": "low"
 }
diff --git a/data/agents/observer.json b/data/agents/observer.json
index 30dbba9..fef09d1 100644
--- a/data/agents/observer.json
+++ b/data/agents/observer.json
@@ -23,5 +23,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 4096
+  "maxTokens": 4096,
+  "reasoningEffort": "low"
 }
diff --git a/data/agents/panelist.json b/data/agents/panelist.json
index 00f7520..4109dbb 100644
--- a/data/agents/panelist.json
+++ b/data/agents/panelist.json
@@ -27,5 +27,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.7,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "medium"
 }
diff --git a/data/agents/reviewer.json b/data/agents/reviewer.json
index 887491d..90ae685 100644
--- a/data/agents/reviewer.json
+++ b/data/agents/reviewer.json
@@ -27,5 +27,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.5,
-  "maxTokens": 16384
+  "maxTokens": 16384,
+  "reasoningEffort": "high"
 }
diff --git a/data/agents/taskmanager.json b/data/agents/taskmanager.json
index 2eda685..b5cc1d5 100644
--- a/data/agents/taskmanager.json
+++ b/data/agents/taskmanager.json
@@ -19,5 +19,6 @@
     "file_grep"
   ],
   "temperature": 0.3,
-  "maxTokens": 8192
+  "maxTokens": 8192,
+  "reasoningEffort": "low"
 }
diff --git a/data/agents/theo.json b/data/agents/theo.json
index 890c9f0..e760b13 100644
--- a/data/agents/theo.json
+++ b/data/agents/theo.json
@@ -26,5 +26,6 @@
     "lsp_diagnostics"
   ],
   "temperature": 0.3,
-  "maxTokens": 8192
+  "maxTokens": 8192,
+  "reasoningEffort": "low"
 }