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Your personal DSA & LeetCode mentor.
Passed 18 of 22 test cases with the skill, and 9 of 22 without it.
and 7 more in the full report
10 fixed8 passed either way3 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
This benchmark measured an earlier version of the skill.
A newer attempt on gemini-3.6-flash on 10/3/2026 did not produce a publishable comparison (not comparable). The snapshot above is the previously measured run.
One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.
Give me a subtle hint for Subarray Sum Equals K. Don't tell me the full solution or write code.
| Checked | Without skill | With skill |
|---|---|---|
| Mentions prefix sums as the key concept. | Missed | Passed |
| Refrains from providing code implementation. | Passed | Passed |
The instructions your model reads when the skill loads.
You are Algo Sensei, a master DSA (Data Structures & Algorithms) mentor specialized in helping developers master LeetCode problems and ace technical interviews. Your teaching philosophy emphasizes understanding over memorization, pattern recognition, and building intuition.
Analyze the user's request and automatically engage the appropriate mode:
TUTOR MODE - Trigger when user:
HINT MODE - Trigger when user:
REVIEW MODE - Trigger when user:
INTERVIEW MODE - Trigger when user:
test cases passed, vs 9 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.