From 446a59755531f27f86055d47ca900aa2525f239e Mon Sep 17 00:00:00 2001 From: Finbarr Taylor Date: Tue, 10 Jun 2025 17:09:02 -0700 Subject: [PATCH] Fix handling of multiple tool calls in single LLM response Previously, the library only processed the first tool call when an LLM returned multiple tool_use blocks in a single response. This limitation prevented parallel function execution, a key feature of modern LLMs. Changes: - Update Anthropic provider to extract ALL tool_use blocks from responses - Modify tool parser to handle arrays of content blocks - Ensure all tools execute before continuing the conversation - Add comprehensive tests for multi-tool scenarios across all providers This enables use cases like: - Executing multiple independent operations in parallel - Rolling dice multiple times in one request - Fetching data from multiple sources simultaneously The implementation maintains backward compatibility while extending support for advanced parallel tool calling capabilities. Fixes the limitation where only the first tool call was processed when multiple were requested. --- lib/ruby_llm/chat.rb | 2 + lib/ruby_llm/providers/anthropic/chat.rb | 8 +- lib/ruby_llm/providers/anthropic/tools.rb | 38 +- ...ltiple_tool_calls_in_a_single_response.yml | 170 ++++++++ ...ltiple_tool_calls_in_a_single_response.yml | 116 ++++++ ...ltiple_tool_calls_in_a_single_response.yml | 117 ++++++ ...ltiple_tool_calls_in_a_single_response.yml | 374 ++++++++++++++++++ ...ltiple_tool_calls_in_a_single_response.yml | 256 ++++++++++++ ...ltiple_tool_calls_in_a_single_response.yml | 114 ++++++ spec/ruby_llm/chat_tools_spec.rb | 43 ++ .../providers/anthropic/tools_spec.rb | 80 +++- 11 files changed, 1300 insertions(+), 18 deletions(-) create mode 100644 spec/fixtures/vcr_cassettes/chat_function_calling_anthropic_claude-3-5-haiku-20241022_can_handle_multiple_tool_calls_in_a_single_response.yml create mode 100644 spec/fixtures/vcr_cassettes/chat_function_calling_bedrock_anthropic_claude-3-5-haiku-20241022-v1_0_can_handle_multiple_tool_calls_in_a_single_response.yml create mode 100644 spec/fixtures/vcr_cassettes/chat_function_calling_deepseek_deepseek-chat_can_handle_multiple_tool_calls_in_a_single_response.yml create mode 100644 spec/fixtures/vcr_cassettes/chat_function_calling_gemini_gemini-2_0-flash_can_handle_multiple_tool_calls_in_a_single_response.yml create mode 100644 spec/fixtures/vcr_cassettes/chat_function_calling_openai_gpt-4_1-nano_can_handle_multiple_tool_calls_in_a_single_response.yml create mode 100644 spec/fixtures/vcr_cassettes/chat_function_calling_openrouter_anthropic_claude-3_5-haiku_can_handle_multiple_tool_calls_in_a_single_response.yml diff --git a/lib/ruby_llm/chat.rb b/lib/ruby_llm/chat.rb index 3b5bfa83a..fdb719b03 100644 --- a/lib/ruby_llm/chat.rb +++ b/lib/ruby_llm/chat.rb @@ -125,6 +125,7 @@ def reset_messages! private def handle_tool_calls(response, &) + # Execute all tools and collect results first response.tool_calls.each_value do |tool_call| @on[:new_message]&.call result = execute_tool tool_call @@ -132,6 +133,7 @@ def handle_tool_calls(response, &) @on[:end_message]&.call(message) end + # Make a single API call after all tools have been executed complete(&) end diff --git a/lib/ruby_llm/providers/anthropic/chat.rb b/lib/ruby_llm/providers/anthropic/chat.rb index 2ba96009d..6940853fe 100644 --- a/lib/ruby_llm/providers/anthropic/chat.rb +++ b/lib/ruby_llm/providers/anthropic/chat.rb @@ -55,9 +55,9 @@ def parse_completion_response(response) content_blocks = data['content'] || [] text_content = extract_text_content(content_blocks) - tool_use = Tools.find_tool_use(content_blocks) + tool_use_blocks = content_blocks.select { |c| c['type'] == 'tool_use' } - build_message(data, text_content, tool_use) + build_message(data, text_content, tool_use_blocks) end def extract_text_content(blocks) @@ -65,11 +65,11 @@ def extract_text_content(blocks) text_blocks.map { |c| c['text'] }.join end - def build_message(data, content, tool_use) + def build_message(data, content, tool_use_blocks) Message.new( role: :assistant, content: content, - tool_calls: Tools.parse_tool_calls(tool_use), + tool_calls: Tools.parse_tool_calls(tool_use_blocks), input_tokens: data.dig('usage', 'input_tokens'), output_tokens: data.dig('usage', 'output_tokens'), model_id: data['model'] diff --git a/lib/ruby_llm/providers/anthropic/tools.rb b/lib/ruby_llm/providers/anthropic/tools.rb index 7fce52836..3b1a5075f 100644 --- a/lib/ruby_llm/providers/anthropic/tools.rb +++ b/lib/ruby_llm/providers/anthropic/tools.rb @@ -12,15 +12,19 @@ def find_tool_use(blocks) end def format_tool_call(msg) - tool_call = msg.tool_calls.values.first - content = [] - content << Media.format_text(msg.content) unless msg.content.nil? || msg.content.empty? - content << format_tool_use_block(tool_call) + + # Only add text content if it's not empty + content << Media.format_text(msg.content) if msg.content && !msg.content.to_s.empty? + + # Add all tool use blocks, not just the first one + msg.tool_calls.each_value do |tool_call| + content << format_tool_use_block(tool_call) + end { role: 'assistant', - content: + content: content } end @@ -68,16 +72,24 @@ def extract_tool_calls(data) end end - def parse_tool_calls(content_block) - return nil unless content_block && content_block['type'] == 'tool_use' + def parse_tool_calls(content_blocks) + return nil if content_blocks.nil? - { - content_block['id'] => ToolCall.new( - id: content_block['id'], - name: content_block['name'], - arguments: content_block['input'] + # Handle single content block (backward compatibility) + content_blocks = [content_blocks] unless content_blocks.is_a?(Array) + + tool_calls = {} + content_blocks.each do |block| + next unless block && block['type'] == 'tool_use' + + tool_calls[block['id']] = ToolCall.new( + id: block['id'], + name: block['name'], + arguments: block['input'] ) - } + end + + tool_calls.empty? ? nil : tool_calls end def clean_parameters(parameters) diff --git a/spec/fixtures/vcr_cassettes/chat_function_calling_anthropic_claude-3-5-haiku-20241022_can_handle_multiple_tool_calls_in_a_single_response.yml b/spec/fixtures/vcr_cassettes/chat_function_calling_anthropic_claude-3-5-haiku-20241022_can_handle_multiple_tool_calls_in_a_single_response.yml new file mode 100644 index 000000000..dcca5941d --- /dev/null +++ b/spec/fixtures/vcr_cassettes/chat_function_calling_anthropic_claude-3-5-haiku-20241022_can_handle_multiple_tool_calls_in_a_single_response.yml @@ -0,0 +1,170 @@ +--- +http_interactions: +- request: + method: post + uri: https://api.anthropic.com/v1/messages + body: + encoding: UTF-8 + string: '{"model":"claude-3-5-haiku-20241022","messages":[{"role":"user","content":[{"type":"text","text":"Roll + the dice 3 times"}]}],"temperature":0.7,"stream":false,"max_tokens":8192,"tools":[{"name":"dice_roll","description":"Rolls + a single six-sided die and returns the result","input_schema":{"type":"object","properties":{},"required":[]}}],"system":"{type: + \"text\", text: \"You must call the dice_roll tool exactly 3 times when asked + to roll dice 3 times.\"}"}' + headers: + User-Agent: + - Faraday v2.12.2 + X-Api-Key: + - "" + Anthropic-Version: + - '2023-06-01' + Content-Type: + - application/json + Accept-Encoding: + - gzip;q=1.0,deflate;q=0.6,identity;q=0.3 + Accept: + - "*/*" + response: + status: + code: 200 + message: OK + headers: + Date: + - Tue, 10 Jun 2025 20:30:48 GMT + Content-Type: + - application/json + Transfer-Encoding: + - chunked + Connection: + - keep-alive + Anthropic-Ratelimit-Input-Tokens-Limit: + - '400000' + Anthropic-Ratelimit-Input-Tokens-Remaining: + - '400000' + Anthropic-Ratelimit-Input-Tokens-Reset: + - '2025-06-10T20:30:47Z' + Anthropic-Ratelimit-Output-Tokens-Limit: + - '80000' + Anthropic-Ratelimit-Output-Tokens-Remaining: + - '80000' + Anthropic-Ratelimit-Output-Tokens-Reset: + - '2025-06-10T20:30:48Z' + Anthropic-Ratelimit-Requests-Limit: + - '4000' + Anthropic-Ratelimit-Requests-Remaining: + - '3999' + Anthropic-Ratelimit-Requests-Reset: + - '2025-06-10T20:30:46Z' + Anthropic-Ratelimit-Tokens-Limit: + - '480000' + Anthropic-Ratelimit-Tokens-Remaining: + - '480000' + Anthropic-Ratelimit-Tokens-Reset: + - '2025-06-10T20:30:47Z' + Request-Id: + - "" + Strict-Transport-Security: + - max-age=31536000; includeSubDomains; preload + Anthropic-Organization-Id: + - 0ca8b3c1-9af3-46f0-99fc-e3a6df276ff6 + Via: + - 1.1 google + Cf-Cache-Status: + - DYNAMIC + X-Robots-Tag: + - none + Server: + - cloudflare + Cf-Ray: + - "" + body: + encoding: ASCII-8BIT + string: '{"id":"msg_01HarzmMXEZcE8q61vzedQEw","type":"message","role":"assistant","model":"claude-3-5-haiku-20241022","content":[{"type":"text","text":"I''ll + roll the dice three times for you using the dice_roll tool."},{"type":"tool_use","id":"toolu_01TTBFAGitKFwKCXDbher1Pj","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_01XpAWEKikDnDB6mTVZ9XQhv","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_011n2vjgnt8tZJrjVx5etoEM","name":"dice_roll","input":{}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":362,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":91,"service_tier":"standard"}}' + recorded_at: Tue, 10 Jun 2025 20:30:48 GMT +- request: + method: post + uri: https://api.anthropic.com/v1/messages + body: + encoding: UTF-8 + string: '{"model":"claude-3-5-haiku-20241022","messages":[{"role":"user","content":[{"type":"text","text":"Roll + the dice 3 times"}]},{"role":"assistant","content":[{"type":"text","text":"I''ll + roll the dice three times for you using the dice_roll tool."},{"type":"tool_use","id":"toolu_01TTBFAGitKFwKCXDbher1Pj","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_01XpAWEKikDnDB6mTVZ9XQhv","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_011n2vjgnt8tZJrjVx5etoEM","name":"dice_roll","input":{}}]},{"role":"user","content":[{"type":"tool_result","tool_use_id":"toolu_01TTBFAGitKFwKCXDbher1Pj","content":"{roll: + 4}"}]},{"role":"user","content":[{"type":"tool_result","tool_use_id":"toolu_01XpAWEKikDnDB6mTVZ9XQhv","content":"{roll: + 6}"}]},{"role":"user","content":[{"type":"tool_result","tool_use_id":"toolu_011n2vjgnt8tZJrjVx5etoEM","content":"{roll: + 1}"}]}],"temperature":0.7,"stream":false,"max_tokens":8192,"tools":[{"name":"dice_roll","description":"Rolls + a single six-sided die and returns the result","input_schema":{"type":"object","properties":{},"required":[]}}],"system":"{type: + \"text\", text: \"You must call the dice_roll tool exactly 3 times when asked + to roll dice 3 times.\"}"}' + headers: + User-Agent: + - Faraday v2.12.2 + X-Api-Key: + - "" + Anthropic-Version: + - '2023-06-01' + Content-Type: + - application/json + Accept-Encoding: + - gzip;q=1.0,deflate;q=0.6,identity;q=0.3 + Accept: + - "*/*" + response: + status: + code: 200 + message: OK + headers: + Date: + - Tue, 10 Jun 2025 20:30:49 GMT + Content-Type: + - application/json + Transfer-Encoding: + - chunked + Connection: + - keep-alive + Anthropic-Ratelimit-Input-Tokens-Limit: + - '400000' + Anthropic-Ratelimit-Input-Tokens-Remaining: + - '400000' + Anthropic-Ratelimit-Input-Tokens-Reset: + - '2025-06-10T20:30:48Z' + Anthropic-Ratelimit-Output-Tokens-Limit: + - '80000' + Anthropic-Ratelimit-Output-Tokens-Remaining: + - '80000' + Anthropic-Ratelimit-Output-Tokens-Reset: + - '2025-06-10T20:30:49Z' + Anthropic-Ratelimit-Requests-Limit: + - '4000' + Anthropic-Ratelimit-Requests-Remaining: + - '3999' + Anthropic-Ratelimit-Requests-Reset: + - '2025-06-10T20:30:48Z' + Anthropic-Ratelimit-Tokens-Limit: + - '480000' + Anthropic-Ratelimit-Tokens-Remaining: + - '480000' + Anthropic-Ratelimit-Tokens-Reset: + - '2025-06-10T20:30:48Z' + Request-Id: + - "" + Strict-Transport-Security: + - max-age=31536000; includeSubDomains; preload + Anthropic-Organization-Id: + - 0ca8b3c1-9af3-46f0-99fc-e3a6df276ff6 + Via: + - 1.1 google + Cf-Cache-Status: + - DYNAMIC + X-Robots-Tag: + - none + Server: + - cloudflare + Cf-Ray: + - "" + body: + encoding: ASCII-8BIT + string: '{"id":"msg_01TPH41MXjaCh5HJWAeMmi1B","type":"message","role":"assistant","model":"claude-3-5-haiku-20241022","content":[{"type":"text","text":"Here + are the results of the three dice rolls:\n1st roll: 4\n2nd roll: 6\n3rd roll: + 1"}],"stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":552,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":35,"service_tier":"standard"}}' + recorded_at: Tue, 10 Jun 2025 20:30:49 GMT +recorded_with: VCR 6.3.1 diff --git a/spec/fixtures/vcr_cassettes/chat_function_calling_bedrock_anthropic_claude-3-5-haiku-20241022-v1_0_can_handle_multiple_tool_calls_in_a_single_response.yml b/spec/fixtures/vcr_cassettes/chat_function_calling_bedrock_anthropic_claude-3-5-haiku-20241022-v1_0_can_handle_multiple_tool_calls_in_a_single_response.yml new file mode 100644 index 000000000..82d8c91ea --- /dev/null +++ b/spec/fixtures/vcr_cassettes/chat_function_calling_bedrock_anthropic_claude-3-5-haiku-20241022-v1_0_can_handle_multiple_tool_calls_in_a_single_response.yml @@ -0,0 +1,116 @@ +--- +http_interactions: +- request: + method: post + uri: https://bedrock-runtime..amazonaws.com/model/anthropic.claude-3-5-haiku-20241022-v1:0/invoke + body: + encoding: UTF-8 + string: '{"anthropic_version":"bedrock-2023-05-31","messages":[{"role":"user","content":[{"type":"text","text":"Roll + the dice 3 times"}]}],"temperature":0.7,"max_tokens":4096,"tools":[{"name":"dice_roll","description":"Rolls + a single six-sided die and returns the result","input_schema":{"type":"object","properties":{},"required":[]}}],"system":"{type: + \"text\", text: \"You must call the dice_roll tool exactly 3 times when asked + to roll dice 3 times.\"}"}' + headers: + User-Agent: + - Faraday v2.12.2 + Host: + - bedrock-runtime..amazonaws.com + X-Amz-Date: + - 20250610T203049Z + X-Amz-Content-Sha256: + - 7032d52005bf8d75fa9174c7f5272301beef534c231c34ba6f7d37fe48a7231e + Authorization: + - AWS4-HMAC-SHA256 Credential=/20250610//bedrock/aws4_request, + SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=b229f1ee935caa96f56dedd9fb0f570cc8e9c2e6dd685e850c8fce4212f3e4f9 + Content-Type: + - application/json + Accept: + - application/json + Accept-Encoding: + - gzip;q=1.0,deflate;q=0.6,identity;q=0.3 + response: + status: + code: 200 + message: OK + headers: + Date: + - Tue, 10 Jun 2025 20:30:49 GMT + Content-Type: + - application/json + Content-Length: + - '651' + Connection: + - keep-alive + X-Amzn-Requestid: + - 9262f4e7-921f-4531-b9dc-575b18a69f05 + X-Amzn-Bedrock-Invocation-Latency: + - '1670' + X-Amzn-Bedrock-Output-Token-Count: + - '91' + X-Amzn-Bedrock-Input-Token-Count: + - '362' + body: + encoding: UTF-8 + string: '{"id":"msg_bdrk_01HarzmMXEZcE8q61vzedQEw","type":"message","role":"assistant","model":"claude-3-5-haiku-20241022","content":[{"type":"text","text":"I''ll + roll the dice three times for you using the dice_roll tool."},{"type":"tool_use","id":"toolu_bdrk_01TTBFAGitKFwKCXDbher1Pj","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_bdrk_01XpAWEKikDnDB6mTVZ9XQhv","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_bdrk_011n2vjgnt8tZJrjVx5etoEM","name":"dice_roll","input":{}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":362,"output_tokens":91}}' + recorded_at: Tue, 10 Jun 2025 20:30:49 GMT +- request: + method: post + uri: https://bedrock-runtime..amazonaws.com/model/anthropic.claude-3-5-haiku-20241022-v1:0/invoke + body: + encoding: UTF-8 + string: '{"anthropic_version":"bedrock-2023-05-31","messages":[{"role":"user","content":[{"type":"text","text":"Roll + the dice 3 times"}]},{"role":"assistant","content":[{"type":"text","text":"I''ll + roll the dice three times for you using the dice_roll tool."},{"type":"tool_use","id":"toolu_bdrk_01TTBFAGitKFwKCXDbher1Pj","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_bdrk_01XpAWEKikDnDB6mTVZ9XQhv","name":"dice_roll","input":{}},{"type":"tool_use","id":"toolu_bdrk_011n2vjgnt8tZJrjVx5etoEM","name":"dice_roll","input":{}}]},{"role":"user","content":[{"type":"tool_result","tool_use_id":"toolu_bdrk_01TTBFAGitKFwKCXDbher1Pj","content":"{roll: + 1}"}]},{"role":"user","content":[{"type":"tool_result","tool_use_id":"toolu_bdrk_01XpAWEKikDnDB6mTVZ9XQhv","content":"{roll: + 2}"}]},{"role":"user","content":[{"type":"tool_result","tool_use_id":"toolu_bdrk_011n2vjgnt8tZJrjVx5etoEM","content":"{roll: + 3}"}]}],"temperature":0.7,"max_tokens":4096,"tools":[{"name":"dice_roll","description":"Rolls + a single six-sided die and returns the result","input_schema":{"type":"object","properties":{},"required":[]}}],"system":"{type: + \"text\", text: \"You must call the dice_roll tool exactly 3 times when asked + to roll dice 3 times.\"}"}' + headers: + User-Agent: + - 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includeSubDomains; preload + Cf-Cache-Status: + - DYNAMIC + Set-Cookie: + - "" + - "" + X-Content-Type-Options: + - nosniff + Server: + - cloudflare + Cf-Ray: + - "" + Alt-Svc: + - h3=":443"; ma=86400 + body: + encoding: ASCII-8BIT + string: | + { + "id": "chatcmpl-Bgzuq1x3YPHeQQuKGWBhGoAjS1jje", + "object": "chat.completion", + "created": 1749587480, + "model": "gpt-4.1-nano-2025-04-14", + "choices": [ + { + "index": 0, + "message": { + "role": "assistant", + "content": "The results of the three dice rolls are 2, 1, and 5.", + "refusal": null, + "annotations": [] + }, + "logprobs": null, + "finish_reason": "stop" + } + ], + "usage": { + "prompt_tokens": 151, + "completion_tokens": 19, + "total_tokens": 170, + "prompt_tokens_details": { + "cached_tokens": 0, + "audio_tokens": 0 + }, + "completion_tokens_details": { + "reasoning_tokens": 0, + "audio_tokens": 0, + "accepted_prediction_tokens": 0, + "rejected_prediction_tokens": 0 + } + }, + "service_tier": "default", + "system_fingerprint": "fp_f12167b370" + } + recorded_at: Tue, 10 Jun 2025 20:31:20 GMT +recorded_with: VCR 6.3.1 diff --git a/spec/fixtures/vcr_cassettes/chat_function_calling_openrouter_anthropic_claude-3_5-haiku_can_handle_multiple_tool_calls_in_a_single_response.yml b/spec/fixtures/vcr_cassettes/chat_function_calling_openrouter_anthropic_claude-3_5-haiku_can_handle_multiple_tool_calls_in_a_single_response.yml new file mode 100644 index 000000000..aa998ae38 --- /dev/null +++ b/spec/fixtures/vcr_cassettes/chat_function_calling_openrouter_anthropic_claude-3_5-haiku_can_handle_multiple_tool_calls_in_a_single_response.yml @@ -0,0 +1,114 @@ +--- +http_interactions: +- request: + method: post + uri: https://openrouter.ai/api/v1/chat/completions + body: + encoding: UTF-8 + string: '{"model":"anthropic/claude-3.5-haiku","messages":[{"role":"developer","content":"You + must call the dice_roll tool exactly 3 times when asked to roll dice 3 times."},{"role":"user","content":"Roll + the dice 3 times"}],"temperature":0.7,"stream":false,"tools":[{"type":"function","function":{"name":"dice_roll","description":"Rolls + a single six-sided die and returns the result","parameters":{"type":"object","properties":{},"required":[]}}}],"tool_choice":"auto"}' + headers: + User-Agent: + - Faraday v2.12.2 + Authorization: + - Bearer + Content-Type: + - application/json + Accept-Encoding: + - gzip;q=1.0,deflate;q=0.6,identity;q=0.3 + Accept: + - "*/*" + response: + status: + code: 200 + message: OK + headers: + Date: + - Tue, 10 Jun 2025 20:31:21 GMT + Content-Type: + - application/json + Transfer-Encoding: + - chunked + Connection: + - keep-alive + Access-Control-Allow-Origin: + - "*" + X-Clerk-Auth-Message: + - Invalid JWT form. A JWT consists of three parts separated by dots. (reason=token-invalid, + token-carrier=header) + X-Clerk-Auth-Reason: + - token-invalid + X-Clerk-Auth-Status: + - signed-out + Vary: + - Accept-Encoding + Server: + - cloudflare + Cf-Ray: + - "" + body: + encoding: ASCII-8BIT + string: "\n \n\n \n\n \n\n \n{\"id\":\"gen-1749587480-emRxjCDiNfxMfbbImoD9\",\"provider\":\"Anthropic\",\"model\":\"anthropic/claude-3.5-haiku\",\"object\":\"chat.completion\",\"created\":1749587480,\"choices\":[{\"logprobs\":null,\"finish_reason\":\"tool_calls\",\"native_finish_reason\":\"tool_calls\",\"index\":0,\"message\":{\"role\":\"assistant\",\"content\":\"I'll + roll a six-sided die three times for you.\",\"refusal\":null,\"reasoning\":null,\"tool_calls\":[{\"id\":\"toolu_01Kb2EPwanJh4DrJPeWRU3wM\",\"index\":0,\"type\":\"function\",\"function\":{\"name\":\"dice_roll\",\"arguments\":\"\"}},{\"id\":\"toolu_012oTqsd64aBbTi31E7QbQC1\",\"index\":1,\"type\":\"function\",\"function\":{\"name\":\"dice_roll\",\"arguments\":\"\"}},{\"id\":\"toolu_013Jn8Y5uW2R4x7cy9q1F5sF\",\"index\":2,\"type\":\"function\",\"function\":{\"name\":\"dice_roll\",\"arguments\":\"\"}}]}}],\"usage\":{\"prompt_tokens\":352,\"completion_tokens\":88,\"total_tokens\":440}}" + recorded_at: Tue, 10 Jun 2025 20:31:22 GMT +- request: + method: post + uri: https://openrouter.ai/api/v1/chat/completions + body: + encoding: UTF-8 + string: '{"model":"anthropic/claude-3.5-haiku","messages":[{"role":"developer","content":"You + must call the dice_roll tool exactly 3 times when asked to roll dice 3 times."},{"role":"user","content":"Roll + the dice 3 times"},{"role":"assistant","content":"I''ll roll a six-sided die + three times for you.","tool_calls":[{"id":"toolu_01Kb2EPwanJh4DrJPeWRU3wM","type":"function","function":{"name":"dice_roll","arguments":"{}"}},{"id":"toolu_012oTqsd64aBbTi31E7QbQC1","type":"function","function":{"name":"dice_roll","arguments":"{}"}},{"id":"toolu_013Jn8Y5uW2R4x7cy9q1F5sF","type":"function","function":{"name":"dice_roll","arguments":"{}"}}]},{"role":"tool","content":"{roll: + 3}","tool_call_id":"toolu_01Kb2EPwanJh4DrJPeWRU3wM"},{"role":"tool","content":"{roll: + 1}","tool_call_id":"toolu_012oTqsd64aBbTi31E7QbQC1"},{"role":"tool","content":"{roll: + 3}","tool_call_id":"toolu_013Jn8Y5uW2R4x7cy9q1F5sF"}],"temperature":0.7,"stream":false,"tools":[{"type":"function","function":{"name":"dice_roll","description":"Rolls + a single six-sided die and returns the result","parameters":{"type":"object","properties":{},"required":[]}}}],"tool_choice":"auto"}' + headers: + User-Agent: + - Faraday v2.12.2 + Authorization: + - Bearer + Content-Type: + - application/json + Accept-Encoding: + - gzip;q=1.0,deflate;q=0.6,identity;q=0.3 + Accept: + - "*/*" + response: + status: + code: 200 + message: OK + headers: + Date: + - Tue, 10 Jun 2025 20:31:24 GMT + Content-Type: + - application/json + Transfer-Encoding: + - chunked + Connection: + - keep-alive + Access-Control-Allow-Origin: + - "*" + X-Clerk-Auth-Message: + - Invalid JWT form. A JWT consists of three parts separated by dots. (reason=token-invalid, + token-carrier=header) + X-Clerk-Auth-Reason: + - token-invalid + X-Clerk-Auth-Status: + - signed-out + Vary: + - Accept-Encoding + Server: + - cloudflare + Cf-Ray: + - "" + body: + encoding: ASCII-8BIT + string: "\n \n\n \n{\"id\":\"gen-1749587483-4w2glAfe4toiUgtzMQ0m\",\"provider\":\"Anthropic\",\"model\":\"anthropic/claude-3.5-haiku\",\"object\":\"chat.completion\",\"created\":1749587483,\"choices\":[{\"logprobs\":null,\"finish_reason\":\"stop\",\"native_finish_reason\":\"stop\",\"index\":0,\"message\":{\"role\":\"assistant\",\"content\":\"Here + are the results of the three dice rolls:\\n1st roll: 3\\n2nd roll: 1\\n3rd + roll: 3\",\"refusal\":null,\"reasoning\":null}}],\"usage\":{\"prompt_tokens\":539,\"completion_tokens\":35,\"total_tokens\":574}}" + recorded_at: Tue, 10 Jun 2025 20:31:24 GMT +recorded_with: VCR 6.3.1 diff --git a/spec/ruby_llm/chat_tools_spec.rb b/spec/ruby_llm/chat_tools_spec.rb index 4a0a12f65..11a23d74c 100644 --- a/spec/ruby_llm/chat_tools_spec.rb +++ b/spec/ruby_llm/chat_tools_spec.rb @@ -31,6 +31,14 @@ def execute end end + class DiceRoll < RubyLLM::Tool # rubocop:disable Lint/ConstantDefinitionInBlock,RSpec/LeakyConstantDeclaration + description 'Rolls a single six-sided die and returns the result' + + def execute + { roll: rand(1..6) } + end + end + describe 'function calling' do CHAT_MODELS.each do |model_info| model = model_info[:model] @@ -127,6 +135,41 @@ def execute expect(response.content).to include('10') end end + + CHAT_MODELS.each do |model_info| # rubocop:disable Style/CombinableLoops + model = model_info[:model] + provider = model_info[:provider] + it "#{provider}/#{model} can handle multiple tool calls in a single response" do # rubocop:disable RSpec/ExampleLength,RSpec/MultipleExpectations + skip 'Ollama models do not reliably use tools' if provider == :ollama + chat = RubyLLM.chat(model: model, provider: provider) + .with_tool(DiceRoll) + .with_instructions( + 'You must call the dice_roll tool exactly 3 times when asked to roll dice 3 times.' + ) + + # Track tool calls to ensure all 3 are executed + tool_call_count = 0 + + original_execute = DiceRoll.instance_method(:execute) + DiceRoll.define_method(:execute) do + tool_call_count += 1 + # Return a fixed result for VCR consistency + { roll: tool_call_count } + end + + response = chat.ask('Roll the dice 3 times') + + # Restore original method + DiceRoll.define_method(:execute, original_execute) + + # Verify all 3 tool calls were made + expect(tool_call_count).to eq(3) + + # Verify the response contains some dice roll results + expect(response.content).to match(/\d+/) # Contains at least one number + expect(response.content.downcase).to match(/roll|dice|result/) # Mentions rolling or results + end + end end describe 'error handling' do diff --git a/spec/ruby_llm/providers/anthropic/tools_spec.rb b/spec/ruby_llm/providers/anthropic/tools_spec.rb index 56f190621..6d8b0ebff 100644 --- a/spec/ruby_llm/providers/anthropic/tools_spec.rb +++ b/spec/ruby_llm/providers/anthropic/tools_spec.rb @@ -91,6 +91,51 @@ }) end end + + it 'formats messages with multiple tool calls correctly' do # rubocop:disable RSpec/ExampleLength,RSpec/MultipleExpectations + tool_calls = { + 'tool_1' => RubyLLM::ToolCall.new(id: 'tool_1', name: 'dice_roll', arguments: {}), + 'tool_2' => RubyLLM::ToolCall.new(id: 'tool_2', name: 'dice_roll', arguments: {}), + 'tool_3' => RubyLLM::ToolCall.new(id: 'tool_3', name: 'dice_roll', arguments: {}) + } + + msg = RubyLLM::Message.new( + role: :assistant, + content: 'Rolling dice 3 times', + tool_calls: tool_calls + ) + + formatted = described_class.format_tool_call(msg) + + expect(formatted[:role]).to eq('assistant') + expect(formatted[:content].size).to eq(4) # 1 text + 3 tool_use blocks + + # Check text content + expect(formatted[:content][0]).to eq({ type: 'text', text: 'Rolling dice 3 times' }) + # Check all 3 tool use blocks are present + tool_use_blocks = formatted[:content][1..3] + expect(tool_use_blocks.map { |b| b[:type] }).to all(eq('tool_use')) + expect(tool_use_blocks.map { |b| b[:id] }).to contain_exactly('tool_1', 'tool_2', 'tool_3') + expect(tool_use_blocks.map { |b| b[:name] }).to all(eq('dice_roll')) + end + + it 'does not include empty text content with multiple tool calls' do # rubocop:disable RSpec/ExampleLength,RSpec/MultipleExpectations + tool_calls = { + 'tool_1' => RubyLLM::ToolCall.new(id: 'tool_1', name: 'dice_roll', arguments: {}) + } + + msg = RubyLLM::Message.new( + role: :assistant, + content: '', # Empty content + tool_calls: tool_calls + ) + + formatted = described_class.format_tool_call(msg) + + expect(formatted[:role]).to eq('assistant') + expect(formatted[:content].size).to eq(1) # Only tool_use block, no text + expect(formatted[:content][0][:type]).to eq('tool_use') + end end describe '.format_tool_result' do @@ -115,4 +160,37 @@ }) end end -end + + describe '.parse_tool_calls' do + it 'parses multiple tool calls from content blocks' do # rubocop:disable RSpec/ExampleLength,RSpec/MultipleExpectations + content_blocks = [ + { 'type' => 'text', 'text' => 'Rolling dice' }, + { 'type' => 'tool_use', 'id' => 'tool_1', 'name' => 'dice_roll', 'input' => {} }, + { 'type' => 'tool_use', 'id' => 'tool_2', 'name' => 'dice_roll', 'input' => {} }, + { 'type' => 'tool_use', 'id' => 'tool_3', 'name' => 'dice_roll', 'input' => {} } + ] + + tool_calls = described_class.parse_tool_calls(content_blocks) + + expect(tool_calls).to be_a(Hash) + expect(tool_calls.size).to eq(3) + expect(tool_calls.keys).to contain_exactly('tool_1', 'tool_2', 'tool_3') + expect(tool_calls.values.map(&:name)).to all(eq('dice_roll')) + end + + it 'handles single tool call for backward compatibility' do # rubocop:disable RSpec/MultipleExpectations + single_block = { 'type' => 'tool_use', 'id' => 'tool_1', 'name' => 'dice_roll', 'input' => {} } + + tool_calls = described_class.parse_tool_calls(single_block) + + expect(tool_calls).to be_a(Hash) + expect(tool_calls.size).to eq(1) + expect(tool_calls['tool_1'].name).to eq('dice_roll') + end + + it 'returns nil for empty or nil input' do # rubocop:disable RSpec/MultipleExpectations + expect(described_class.parse_tool_calls(nil)).to be_nil + expect(described_class.parse_tool_calls([])).to be_nil + end + end +end \ No newline at end of file