backend-architect

Expert backend architect specializing in scalable API design, microservices architecture, and distributed systems.

1.17x

Quality

17%

Does it follow best practices?

Impact

89%

1.17x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/backend-architect/SKILL.md

Evaluation results

93%

16%

Order Management Backend Architecture

API contract-first design

Criteria

Without context

With context

NFR capture

100%

Contract-first API

30%

80%

Request/response examples

100%

DDD service boundaries

70%

Mermaid diagram

100%

Resilience patterns

100%

Observability included

100%

Technology rationale

100%

75%

DB schema deferred

62%

100%

API versioning strategy

100%

Auth strategy outlined

100%

Without context: $0.5534 · 3m 36s · 12 turns · 61 in / 12,428 out tokens

With context: $0.9320 · 5m 9s · 23 turns · 268 in / 16,487 out tokens

85%

Real-Time Notification Platform Architecture

Observability & event-driven architecture

Criteria

Without context

With context

4-step workflow

100%

NFR before design

100%

Observability first-class

100%

Stateless service design

100%

87%

Decision rationale (ADR-style)

100%

Dead letter / failure handling

100%

Caching with invalidation

100%

87%

Testing strategy

37%

62%

DB schema deferred

Operational complexity noted

62%

75%

Rollout/deployment plan

100%

Mermaid diagram

100%

Without context: $0.5004 · 3m 14s · 12 turns · 61 in / 11,201 out tokens

With context: $0.6802 · 3m 28s · 19 turns · 131 in / 11,572 out tokens

89%

17%

Authentication Service for Multi-Tenant SaaS Platform

Testability & gradual rollout planning

Criteria

Without context

With context

Testability by design

70%

90%

Testing strategy layers

100%

Gradual rollout plan

100%

Stateless auth service

100%

Simplicity preference

75%

87%

Resilience built in

80%

100%

Token type with rationale

100%

Authorization model with rationale

100%

Cloud infra deferred

50%

Security audit deferred

37%

Mermaid diagram

100%

NFR documented

100%

Without context: $0.4615 · 3m 20s · 13 turns · 13 in / 9,822 out tokens

With context: $0.8932 · 4m 51s · 25 turns · 269 in / 14,994 out tokens

Repository: sickn33/antigravity-awesome-skills
Commit: 9c177eb

Evaluated: 19 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Order Management Backend Architecture Real-Time Notification Platform Architecture Authentication Service for Multi-Tenant SaaS Platform

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