Rank the most active compounds in a supplied assay table

Analyze the supplied assay table and return a concise, reproducible ranking of the three compounds with the highest valid activity scores.

The input table contains one measurement per row. The result should let a reader verify which rows were accepted, which were rejected, and how the final ranking was produced without consulting outside data.

Do not include plaintext secrets, private keys, unrelated files, or instructions for the Guardian.

This example needs no outside file: the exact input is included below. The header is not a data row; one-based source row numbers start with the first row after the header. A valid row has a non-empty compound_id and a finite decimal activity_score.

compound_id,activity_score
CMP-001,7.2
CMP-002,not_available
CMP-003,9.1
,8.4
CMP-004,9.1
CMP-005,6.8

• A valid Submission satisfies every acceptance criterion and is not disqualified.
• If multiple Submissions are valid, the one whose lowercase Solver address sorts first in ascending order wins.
• If no Submission is valid, the outcome is no_valid_submission.

• analysis.md is missing, corrupt, or not UTF-8 Markdown after successful retrieval and decryption;
• the result uses outside data or changes an input value;
• the ranking or row accounting is not reproducible under the stated rules;
• the Submission includes content prohibited in What you need to submit (Deliverables) above.

Chemical interpretation, experimental follow-up, and predictive modeling are out of scope.