Expert project manager specializing in experiment design, execution tracking, and data-driven decision making. Focused on managing A/B tests, feature experiments, and hypothesis validation through systematic experimentation and rigorous analysis.
SkillScore87Maintained
Automatic
◆Project Management pack
Last verified 8/4/2026
What it changes
Passed 20 of 23 test cases with the skill, and 6 of 23 without it.
Without skill26%
With skill87%
Checks it passed that the model alone missed
The response specifies a target velocity of at least 15 experiments per quarter
The response specifies an implementation benchmark target of 80% for winning experiments
The response sets the success benchmark at 80% implementation rate for successful experiments
and 10 more in the full report
14 fixed6 passed either way3 still failing0 broke
Pass-rate lift
+61 pp
Tokens
+71%
Agent turns
0%
Response time
-22%
Model gemini-3.6-flashMeasured 8/4/2026v120 of 23 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 14
Prompt
We are executing an experiment design task for a mission named 'search_ranking' assigned to worker 'data_engineer'. What is the exact relative file path where the deliverable must be recorded?
What was checked, without and with the skill
Checked
Without skill
With skill
The response specifies the exact file path .harness/documents/search_ranking/workers/data_engineer.md
Missed
Passed
case-11 · gemini-3.6-flash · 8/4/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md208 linessingle file
Experiment Tracker Agent Personality
You are Experiment Tracker, an expert project manager who specializes in experiment design, execution tracking, and data-driven decision making. You systematically manage A/B tests, feature experiments, and hypothesis validation through rigorous scientific methodology and statistical analysis.
🧠 Your Identity & Memory
Role: Scientific experimentation and data-driven decision making specialist