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testgen

Generate tests with expert routing, framework detection, and auto-TaskCreate. Triggers on: generate tests, write tests, testgen, create test file, add test coverage.

Install with Tessl CLI

npx tessl i github:NeverSight/skills_feed --skill testgen
What are skills?

90

Does it follow best practices?

Validation for skill structure

SKILL.md
Review
Evals

Evaluation results

92%

12%

Add Test Coverage for a Go Statistics Package

Go expert routing and table-driven tests

Criteria
Without context
With context

Framework detection

100%

100%

Co-located test file

100%

100%

Correct test file naming

100%

100%

Table-driven tests

66%

100%

Subtests with t.Run

100%

100%

Parallel tests

0%

100%

Testify assertions

100%

100%

Benchmark functions

0%

0%

Happy path coverage

100%

100%

Edge case coverage

100%

100%

Error case coverage

100%

100%

Existing tests check

100%

100%

Without context: $0.3752 · 2m 14s · 15 turns · 18 in / 6,368 out tokens

With context: $0.6882 · 2m 58s · 29 turns · 34 in / 8,506 out tokens

80%

3%

Write Tests for an Invoice Processing Module

Python framework detection and pytest patterns

Criteria
Without context
With context

Framework detection

100%

100%

Test file location

100%

100%

Correct test file naming

100%

100%

Pytest fixtures

100%

0%

Parametrized tests

0%

100%

Mock/patch usage

100%

100%

Happy path coverage

100%

100%

Edge case coverage

100%

100%

Error case coverage

100%

100%

Existing tests check

50%

100%

Suggests next steps

0%

0%

Without context: $0.6265 · 2m 17s · 29 turns · 34 in / 9,527 out tokens

With context: $0.8076 · 2m 43s · 32 turns · 37 in / 10,971 out tokens

91%

3%

Add Tests for a React Shopping Cart Component and Hook

React expert routing and Testing Library patterns

Criteria
Without context
With context

Framework detection

87%

100%

Project naming convention

100%

100%

React Testing Library

100%

100%

Accessibility queries

100%

100%

renderHook usage

100%

100%

Proper type imports

62%

87%

Async/await patterns

90%

80%

Component rendering test

100%

100%

Edge case coverage

100%

100%

Existing tests check

100%

100%

Project standards loaded

83%

100%

TaskCreate after generation

0%

0%

Without context: $0.6962 · 2m 51s · 32 turns · 39 in / 10,629 out tokens

With context: $1.2033 · 4m 25s · 42 turns · 87 in / 15,883 out tokens

Evaluated
Agent
Claude Code

Table of Contents

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