CtrlK
BlogDocsLog inGet started
Tessl Logo

create-agent

Create and update Harness AI agent instances - standalone templates for agentic workflows in pipelines. Use when asked to create agent, update agent, modify agent spec, build autonomous systems, or work with AI agents.

88

6.84x
Quality

85%

Does it follow best practices?

Impact

89%

6.84x

Average score across 3 eval scenarios

SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Evaluation results

84%

71%

Code Coverage Enforcer Agent

Agent spec with custom inputs — defaults and expression syntax

Criteria
Without this skill
With this skill

UID prefix and slugification

0%

0%

Default for repo_name input

0%

100%

Default for branch input

0%

100%

Default for threshold input

0%

100%

Expression syntax in env vars

0%

100%

allowedDomains input present

0%

0%

PLUGIN_ALLOWED_DOMAINS env var

0%

100%

allowedDomains in layout

0%

100%

Custom inputs absent from layout

100%

100%

PLUGIN_MAX_TURNS range

0%

100%

Required env vars present

0%

100%

Correct container image

0%

100%

No clone/platform sections

100%

100%

RULES section in PLUGIN_TASK

0%

100%

85%

75%

Database Migration Checker Agent

Harness AI agent spec structure and UID

Criteria
Without this skill
With this skill

Correct UID value

0%

0%

UID explicit in spec

0%

0%

step.group.steps structure

0%

100%

Step name field

0%

100%

Step if field

0%

100%

Step id field

0%

100%

Exact container image

0%

100%

PLUGIN_TASK present

0%

100%

RULES section in PLUGIN_TASK

0%

100%

PLUGIN_MAX_TURNS present

0%

100%

PLUGIN_HARNESS_CONNECTOR

0%

100%

PLUGIN_ALLOWED_DOMAINS

0%

100%

llmConnector input

0%

100%

allowedDomains input

0%

100%

Layout block contents

0%

100%

No forbidden sections

100%

100%

No modelName/ANTHROPIC_MODEL

100%

100%

100%

82%

PR Review Agent

Agent spec with MCP connector for external service integration

Criteria
Without this skill
With this skill

PLUGIN_MCP_FORMAT env var

0%

100%

PLUGIN_MCP_SERVERS exact syntax

0%

100%

mcpConnectors type: array

0%

100%

mcpConnectors ui.component: array

0%

100%

mcpConnectors connector inputType

0%

100%

mcpConnectors connectorTypes: [Mcp]

0%

100%

mcpConnectors in layout

0%

100%

No modelName or ANTHROPIC_MODEL

100%

100%

allowedDomains input present

0%

100%

PLUGIN_ALLOWED_DOMAINS env var

0%

100%

allowedDomains in layout

0%

100%

Connector placeholder IDs

100%

100%

Repository
harness/harness-ai
Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.