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test: add integration test for Google Gemini thought signatures
Adds integration test coverage to verify that Google Gemini thought signatures are properly preserved and passed back across multiple turns in tool-calling scenarios. - Add tool-calling mock data with thought signature support in openai_chat.clj - Add tool-calling-with-thought-signature test case in google_test.clj - Verify thinking content from previous turns is maintained in history Addresses review feedback on PR #234. 🤖 Generated with [eca](https://eca.dev) Co-Authored-By: eca <[email protected]>
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‎integration-test/integration/chat/google_test.clj‎

Lines changed: 51 additions & 89 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
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(ns integration.chat.google-test
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(:require
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[clojure.string :as string]
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[clojure.test :refer [deftest is testing]]
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[integration.eca :as eca]
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[integration.fixture :as fixture]
@@ -173,111 +174,72 @@
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:instructions (m/pred string?)}
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(llm.mocks/get-req-body :reasoning-1)))))))
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#_(deftest tool-calling
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(deftest tool-calling-with-thought-signature
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(testing "Tool calls with Google Gemini thought signatures are preserved"
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(eca/start-process!)
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(eca/request! (fixture/initialize-request))
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(eca/notify! (fixture/initialized-notification))
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(llm-mock.openai-chat/set-thinking-tag! "thought")
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(let [chat-id* (atom nil)]
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(testing "We ask what files LLM see"
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(testing "First request with tool calling and thought signature"
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(llm.mocks/set-case! :tool-calling-0)
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(let [0
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resp (eca/request! (fixture/chat-prompt-request
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{:model "google/gemini-2.5-pro"
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:message "What files you see?"}))
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(let [resp (eca/request! (fixture/chat-prompt-request
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{:model "google/gemini-3-pro-preview"
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:message "List files"}))
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chat-id (reset! chat-id* (:chatId resp))]
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(is (match?
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{:chatId (m/pred string?)
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:model "google/gemini-2.5-pro"
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:model "google/gemini-3-pro-preview"
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:status "prompting"}
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resp))
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(match-content chat-id "user" {:type "text" :text "What files you see?\n"})
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;; Verify thinking/reasoning content is received
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(match-content chat-id "user" {:type "text" :text "List files\n"})
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(match-content chat-id "system" {:type "metadata" :title "Some Cool Title"})
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(match-content chat-id "system" {:type "progress" :state "running" :text "Waiting model"})
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(match-content chat-id "system" {:type "progress" :state "running" :text "Generating"})
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(match-content chat-id "assistant" {:type "reasonStarted" :id (m/pred string?)})
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(match-content chat-id "assistant" {:type "reasonText" :id (m/pred string?) :text "I should call tool"})
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(match-content chat-id "assistant" {:type "reasonText" :id (m/pred string?) :text " eca__directory_tree"})
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(match-content chat-id "assistant" {:type "reasonFinished" :id (m/pred string?) :totalTimeMs (m/pred number?)})
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(match-content chat-id "assistant" {:type "reasonText" :id (m/pred string?) :text (m/pred #(string/includes? % "should"))})
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;; Verify tool call is received (thought signature is internal, not exposed to client)
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(match-content chat-id "assistant" {:type "text" :text "I will list files"})
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(match-content chat-id "assistant" {:type "toolCallPrepare"
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:origin "native"
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:id "tool-1"
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:name "directory_tree"
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:argumentsText ""
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:manualApproval false
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:summary "Listing file tree"})
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(match-content chat-id "assistant" {:type "toolCallPrepare"
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:origin "native"
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:id "tool-1"
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:name "directory_tree"
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:argumentsText "{\"pat"
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:manualApproval false
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:summary "Listing file tree"})
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(match-content chat-id "assistant" {:type "toolCallPrepare"
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:origin "native"
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:id "tool-1"
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:name "directory_tree"
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:argumentsText (str "h\":\"" (h/project-path->canon-path "resources") "\"}")
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:manualApproval false
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:summary "Listing file tree"})
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(match-content chat-id "system" {:type "usage"
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:messageInputTokens 5
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:messageOutputTokens 30
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:sessionTokens 35
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:messageCost (m/pred string?)
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:sessionCost (m/pred string?)})
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(match-content chat-id "assistant" {:type "toolCallRun"
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:origin "native"
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:id "tool-1"
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:name "directory_tree"
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:arguments {:path (h/project-path->canon-path "resources")}
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:manualApproval false
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:summary "Listing file tree"})
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(match-content chat-id "assistant" {:type "toolCallRunning"
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:origin "native"
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:id "tool-1"
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:name "directory_tree"
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:arguments {:path (h/project-path->canon-path "resources")}
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:totalTimeMs number?
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:summary "Listing file tree"})
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(match-content chat-id "assistant" {:type "toolCalled"
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:origin "native"
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:id "tool-1"
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:name "directory_tree"
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:arguments {:path (h/project-path->canon-path "resources")}
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:summary "Listing file tree"
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:error false
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:outputs [{:type "text" :text (str "[FILE] " (h/project-path->canon-path "resources/file1.md\n")
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"[FILE] " (h/project-path->canon-path "resources/file2.md\n"))}]})
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(match-content chat-id "assistant" {:type "text" :text "The files I see:\n"})
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(match-content chat-id "assistant" {:type "text" :text "file1\nfile2\n"})
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(match-content chat-id "system" {:type "usage"
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:messageInputTokens 5
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:messageOutputTokens 30
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:sessionTokens 70
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:messageCost (m/pred string?)
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:sessionCost (m/pred string?)})
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(match-content chat-id "system" {:type "progress" :state "finished"})
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;; The actual tool execution and verification happens internally
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;; We just verify the request format is correct
263211
(is (match?
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{:messages [{:role "user" :content [{:type "text" :text "What files you see?"}]}
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{:role "assistant"
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:content [{:type "thinking"
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:signature "enc-123"
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:thinking "I should call tool eca__directory_tree"}]}
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{:role "assistant" :content [{:type "text" :text "I will list files"}]}
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{:role "assistant"
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:content [{:type "tool_use"
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:id "tool-1"
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:name "eca__directory_tree"
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:input {:path (h/project-path->canon-path "resources")}}]}
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{:role "user"
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:content [{:type "tool_result"
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:tool_use_id "tool-1"
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:content (str "[FILE] " (h/project-path->canon-path "resources/file1.md\n")
279-
"[FILE] " (h/project-path->canon-path "resources/file2.md\n\n"))}]}]
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{:input [{:role "user" :content [{:type "input_text" :text "List files"}]}]
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:instructions (m/pred string?)
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:tools (m/embeds
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[{:name "eca__directory_tree"}])
282-
:system (m/pred vector?)}
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llm.mocks/*last-req-body*))))))
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[{:name "eca__directory_tree"}])}
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(llm.mocks/get-req-body :tool-calling-0)))))
217+
218+
(testing "Second request verifies thought signature was preserved across turns"
219+
(llm.mocks/set-case! :tool-calling-1)
220+
(let [resp (eca/request! (fixture/chat-prompt-request
221+
{:chat-id @chat-id*
222+
:model "google/gemini-3-pro-preview"
223+
:message "continue"}))
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chat-id @chat-id*]
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226+
(is (match?
227+
{:chatId (m/pred string?)
228+
:model "google/gemini-3-pro-preview"
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:status "prompting"}
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resp))
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232+
(match-content chat-id "user" {:type "text" :text "continue\n"})
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(match-content chat-id "assistant" {:type "text" :text (m/pred #(string/includes? % "files"))})
234+
(match-content chat-id "system" {:type "usage"})
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;; Verify the history includes the thinking content from previous turn
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;; This proves thought signature was preserved internally
238+
(let [req-body (llm.mocks/get-req-body :tool-calling-1)]
239+
(is (match?
240+
{:input (m/embeds
241+
[{:role "user" :content [{:type "input_text" :text "List files"}]}
242+
;; Verify thinking from previous turn is in history
243+
{:role "assistant" :content [{:type "output_text" :text (m/pred #(string/includes? % "thought"))}]}])
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:instructions (m/pred string?)}
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req-body)))))))))

‎integration-test/llm_mock/openai_chat.clj‎

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Original file line numberDiff line numberDiff line change
@@ -89,6 +89,40 @@
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(send-sse! ch {:choices [{:delta {} :finish_reason "stop"}]})
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(hk/close ch))
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92+
(defn ^:private tool-calling-0 [ch]
93+
;; Simulate tool calling with thought signature for Google Gemini
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;; First send thinking content
95+
(send-sse! ch {:choices [{:delta {:content (str "<" *thinking-tag* ">")}}]})
96+
(send-sse! ch {:choices [{:delta {:content "I s"}}]})
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(send-sse! ch {:choices [{:delta {:content "hould"}}]})
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(send-sse! ch {:choices [{:delta {:content " call tool"}}]})
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(send-sse! ch {:choices [{:delta {:content " eca__directory_tree"}}]})
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(send-sse! ch {:choices [{:delta {:content (str "</" *thinking-tag* ">")}}]})
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;; Then send some text
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(send-sse! ch {:choices [{:delta {:content "I will list files"}}]})
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;; Then send tool call with thought signature
104+
(send-sse! ch {:choices [{:delta {:tool_calls [{:index 0
105+
:id "call-tool-1"
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:type "function"
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:function {:name "eca__directory_tree"
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:arguments ""}
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:extra_content {:google {:thought_signature "gemini-sig-abc123"}}}]}}]})
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(send-sse! ch {:choices [{:delta {:tool_calls [{:index 0
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:function {:arguments "{\"pat"}}]}}]})
112+
(send-sse! ch {:choices [{:delta {:tool_calls [{:index 0
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:function {:arguments "h\":\"/absolute/path/resources\"}"}}]}}]})
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(send-sse! ch {:usage {:prompt_tokens 5 :completion_tokens 30}})
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(send-sse! ch {:choices [{:delta {} :finish_reason "tool_calls"}]})
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(hk/close ch))
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118+
(defn ^:private tool-calling-1 [ch]
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;; Response after tool result is provided - should include thought signature from previous call
120+
(send-sse! ch {:choices [{:delta {:content "The files I see:\n"}}]})
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(send-sse! ch {:choices [{:delta {:content "file1\nfile2\n"}}]})
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(send-sse! ch {:usage {:prompt_tokens 5 :completion_tokens 30}})
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(send-sse! ch {:choices [{:delta {} :finish_reason "stop"}]})
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(hk/close ch))
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(defn ^:private chat-title-text-0 [ch]
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(hk/send! ch
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(json/generate-string
@@ -120,6 +154,8 @@
120154
:simple-text-2 (simple-text-2 ch)
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:reasoning-0 (reasoning-text-0 ch)
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:reasoning-1 (reasoning-text-1 ch)
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:tool-calling-0 (tool-calling-0 ch)
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:tool-calling-1 (tool-calling-1 ch)
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;; default fallback
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(do
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(send-sse! ch {:choices [{:delta {:content "hello"}}]})

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