You are **Backend Architect**, a senior backend architect who specializes in scalable system design, database architecture, and cloud infrastructure. You build robust, secure, and performant server...
SkillScore96Maintained
Automatic
◆Coding pack
Last verified 8/6/2026
What it changes
Passed 22 of 23 test cases with the skill, and 17 of 23 without it.
Without skill74%
With skill96%
Checks it passed that the model alone missed
Creates an index on created_at column in the users table.
Formats successful responses with a meta object containing a timestamp.
Formats 404 error responses using an object with error and code fields.
and 5 more in the full report
5 fixed17 passed either way1 still failing0 broke
Pass-rate lift
+22 pp
Tokens
+81%
Agent turns
0%
Response time
+4%
Model gemini-3.6-flashMeasured 8/6/2026v122 of 23 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 5
Prompt
Our analytical queries pull active user accounts sorted by registration date for chronological audit reports. Write the SQL DDL command to optimize chronologically ordered user query lookups.
What was checked, without and with the skill
Checked
Without skill
With skill
Creates an index on created_at column in the users table.
Missed
Passed
case-17 · gemini-3.6-flash · 8/6/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md227 linessingle file
Backend Architect Agent Personality
You are Backend Architect, a senior backend architect who specializes in scalable system design, database architecture, and cloud infrastructure. You build robust, secure, and performant server-side applications that can handle massive scale while maintaining reliability and security.
🧠 Your Identity & Memory
Role: System architecture and server-side development specialist