# I believe that i am hitting rate limits
**URL:** https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158
**Category:** Challenges
**Tags:** challenge:claude-code
**Created:** [June 4, 2026, 4:55pm UTC](https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158 "2026-06-04T16:55:05Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@arjav0703](https://forum.codecrafters.io/u/arjav0703)
#### Post date: [June 4, 2026, 4:55pm UTC](https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158/1 "2026-06-04T16:55:05Z")
I’m stuck on Stage #FF2
I’ve tried getting my own openrouter api keys and testing with it (it works fine that way)
Here are my logs:
```auto
[your_program] entering loop with messages: [
[your_program] {
[your_program] "content": "Determine in how many months the chemical expires by reading README.md. Respond with only a number.",
[your_program] "role": "user"
[your_program] },
[your_program] {
[your_program] "content": "This is a simple python project.\n- The starting point of this project is app/init.py.\n- The file app/chemical.py contains chemical properties.",
[your_program] "name": "ReadFile",
[your_program] "role": "tool"
[your_program] }
[your_program] ]
[tester::#FF2] timed out, test exceeded 45 seconds
[tester::#FF2] Test failed
```
And here’s a snippet of my code:
```rust
loop {
eprintln!(
"entering loop with messages: {}",
serde_json::to_string_pretty(&messages)?
);
let response: Value = client
.chat()
.create_byot(json!({
"messages": messages,
"model": get_model(),
"tools": [
{
"type": "function",
"function": {
"name": "ReadFile",
"description": "Read the contents of a file",
"parameters": {
"type": "object",
"properties": {
"file_path": {
"type": "string",
"description": "Path to the file to read"
}
},
"required": ["file_path"]
}
}
}
]
}))
.await?;
eprintln!(
"received response: {}",
serde_json::to_string_pretty(&response)?
);
if let Some(tool_calls) = response["choices"][0]["message"]["tool_calls"].as_array() {
for tool_call in tool_calls {
eprintln!(
"processing tool call: {}",
serde_json::to_string_pretty(tool_call)?
);
let name = tool_call["function"]["name"].as_str().unwrap();
let arguments: Value =
serde_json::from_str(tool_call["function"]["arguments"].as_str().unwrap())?;
if name == "ReadFile" {
let file_path = arguments["file_path"].as_str().unwrap();
let contents = std::fs::read_to_string(file_path)?;
messages.push(json!({
"role": "tool",
"name": name,
"content": contents
}));
}
}
} else if let Some(content) = response["choices"][0]["message"]["content"].as_str() {
eprintln!("no toolcall");
eprintln!("assistant response content: {}", content);
messages.push(json!({
"role": "assistant",
"content": content
}));
println!("{}", content);
break;
} else {
eprintln!("Unexpected response format: {}", response);
break;
}
}
```
---
### Author:  [@arjav0703](https://forum.codecrafters.io/u/arjav0703)
#### Post date: [June 4, 2026, 4:56pm UTC](https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158/3 "2026-06-04T16:56:27Z")
Adding more context: In the logs, i received the response first time (agent calling the file tool) but i didn’t receive any response after Read tool sent the data.
It worked fine when i tested with my own openrouter key on my computer
Full logs:
```bash
Initiating test run...
⚡ This is a turbo test run. https://codecrafters.io/turbo
Running tests on your code. Logs should appear shortly...
[compile] Compiling codecrafters-claude-code v0.1.0 (/app)
[compile] Finished `release` profile [optimized] target(s) in 4.11s
[compile] Compilation successful.
[tester::#FF2] Running tests for Stage #FF2 (Implement the agent loop)
[tester::#FF2] Created README.md:
[tester::#FF2] [README.md] This is a simple python project.
[tester::#FF2] [README.md] - The starting point of this project is app/init.py.
[tester::#FF2] [README.md] - The file app/chemical.py contains chemical properties.
[tester::#FF2] Created app/chemical.py:
[tester::#FF2] [app/chemical.py] chemical_expiry_period = 22 # months
[tester::#FF2] Created app/init.py:
[tester::#FF2] [app/init.py] from chemical import chemical_expiry_period
[tester::#FF2] [app/init.py]
[tester::#FF2] [app/init.py] def main():
[tester::#FF2] [app/init.py] print(f"Chemical expiry period: {chemical_expiry_period} months")
[tester::#FF2] [app/init.py]
[tester::#FF2] [app/init.py] if __name__ == " __main__":
[tester::#FF2] [app/init.py] main()
[tester::#FF2] [app/init.py]
[tester::#FF2] $ ./your_program.sh -p 'Determine in how many months the chemical expires by reading README.md. Respond with only a number.'
[your_program] Finished `release` profile [optimized] target(s) in 0.07s
[your_program] entering loop with messages: [
[your_program] {
[your_program] "content": "Determine in how many months the chemical expires by reading README.md. Respond with only a number.",
[your_program] "role": "user"
[your_program] }
[your_program] ]
[your_program] received response: {
[your_program] "choices": [
[your_program] {
[your_program] "finish_reason": "tool_calls",
[your_program] "index": 0,
[your_program] "logprobs": null,
[your_program] "message": {
[your_program] "content": null,
[your_program] "reasoning": null,
[your_program] "refusal": null,
[your_program] "role": "assistant",
[your_program] "tool_calls": [
[your_program] {
[your_program] "function": {
[your_program] "arguments": "{\"file_path\": \"README.md\"}",
[your_program] "name": "ReadFile"
[your_program] },
[your_program] "id": "toolu_bdrk_01FtcusDZz8aqJQNgRrL9Mig",
[your_program] "index": 0,
[your_program] "type": "function"
[your_program] }
[your_program] ]
[your_program] },
[your_program] "native_finish_reason": "tool_use"
[your_program] }
[your_program] ],
[your_program] "created": 1780591799,
[your_program] "id": "gen-1780591799-bA4I5RjJY5lutwp48L11",
[your_program] "model": "anthropic/claude-4.5-haiku-20251001",
[your_program] "object": "chat.completion",
[your_program] "provider": "Amazon Bedrock",
[your_program] "service_tier": null,
[your_program] "system_fingerprint": null,
[your_program] "usage": {
[your_program] "completion_tokens": 57,
[your_program] "completion_tokens_details": {
[your_program] "audio_tokens": 0,
[your_program] "image_tokens": 0,
[your_program] "reasoning_tokens": 0
[your_program] },
[your_program] "cost": 0.00086922,
[your_program] "cost_details": {
[your_program] "upstream_inference_completions_cost": 0.000285,
[your_program] "upstream_inference_cost": 0.000878,
[your_program] "upstream_inference_prompt_cost": 0.000593
[your_program] },
[your_program] "is_byok": false,
[your_program] "prompt_tokens": 593,
[your_program] "prompt_tokens_details": {
[your_program] "audio_tokens": 0,
[your_program] "cache_write_tokens": 0,
[your_program] "cached_tokens": 0,
[your_program] "video_tokens": 0
[your_program] },
[your_program] "total_tokens": 650
[your_program] }
[your_program] }
[your_program] processing tool call: {
[your_program] "function": {
[your_program] "arguments": "{\"file_path\": \"README.md\"}",
[your_program] "name": "ReadFile"
[your_program] },
[your_program] "id": "toolu_bdrk_01FtcusDZz8aqJQNgRrL9Mig",
[your_program] "index": 0,
[your_program] "type": "function"
[your_program] }
[your_program] entering loop with messages: [
[your_program] {
[your_program] "content": "Determine in how many months the chemical expires by reading README.md. Respond with only a number.",
[your_program] "role": "user"
[your_program] },
[your_program] {
[your_program] "content": "This is a simple python project.\n- The starting point of this project is app/init.py.\n- The file app/chemical.py contains chemical properties.",
[your_program] "name": "ReadFile",
[your_program] "role": "tool"
[your_program] }
[your_program] ]
[tester::#FF2] timed out, test exceeded 45 seconds
[tester::#FF2] Test failed
```
---
### Author:  [@andy1li](https://forum.codecrafters.io/u/andy1li)
#### Post date: [June 4, 2026, 5:50pm UTC](https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158/5 "2026-06-04T17:50:36Z")
Hey @arjav0703, looks like you’ve got past this stage. Do you happen to remember what was wrong? Would love to see if we can improve the tester / instructions.
---
### Author:  [@arjav0703](https://forum.codecrafters.io/u/arjav0703)
#### Post date: [June 4, 2026, 5:52pm UTC](https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158/7 "2026-06-04T17:52:49Z")
Yeah, so i forgot to add `tool_call_id` field to the tool response
---
### Author:  [@system](https://forum.codecrafters.io/u/system)
#### Post date: [June 9, 2026, 5:53pm UTC](https://forum.codecrafters.io/t/i-believe-that-i-am-hitting-rate-limits/16158/8 "2026-06-09T17:53:45Z")
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