# kramabench / kramabench-environment-hard-9

- taskset: [kramabench](https://harnessreport.com/tasks/kramabench.md)
- difficulty: hard
- category: data-science
- language: 
- runnable from the site: no
- agent timeout: 600s

## Results by harness

_none yet_

## Instruction

```
Under `/app/data`, consider the following files for analysis:
* boston-harbor-beaches.txt
* carson_beach_datasheet.csv
* city_point_beach_datasheet.csv
* constitution_beach_datasheet.csv
* m_street_beach_datasheet.csv
* malibu_beach_datasheet.csv
* pleasure_bay_and_castle_island_beach_datasheet.csv
* precipitations_beaches_community.csv
* tenean_beach_datasheet.csv
* wollaston_beach_datasheet.csv

Which Boston Harbor beaches met swimming standards 100% of the time between 2020 and 2024 (inclusive)? A sample meets the standard if it contains fewer than 104 counts of Enterococcus per 100 milliliters of water.

Save your list (one item per line) answer AND NOTHING ELSE in the file `/app/answer.txt`.
```
---
Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp