create-agent SKILL.md skillA
create-agent from harness/harness-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add harness/harness-skills/create-agent@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- harness/harness-skills
- Path
skills/agents/create-agent/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Oct 14, 2026
- Size
- 21,990 bytes
- Repository stars
- 122
- License
- Apache-2.0
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.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Custom AI Agents Create and update Harness AI agent instances - standalone templates used as building blocks in pipelines for automated code, agentic workflows, and infrastructure tasks. ## Instructions Follow this workflow to create or update an agent. **This is INTERACTIVE — show YAML for review and wait for confirmation before creating/updating the agent.** ### Phase 1: Check Existing Solutions First **IMPORTANT: Before creating a new agent, check if an existing one can solve the use case.** 1. **List existing agents** — Call `harness_list` with `resource_type="agent"` (include `org_id` and `project_id` if scoped to a project) - Check if any system or custom agents already exist that can handle this task - Ask user if they want to use/modify an existing agent instead of creating new 2. **For updating existing agents** — Use `harness_get` with `resource_type="agent"` and `agent_id` to retrieve the current agent configuration - Review the current `spec`, `name`, `description`, and other fields - Identify what needs to be changed (spec, name, description, wiki, logo) …
Read the whole file at its exact version.
How to install
mdr add harness/harness-skills/create-agent@sha256:c655d4967d331379The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_lwytzm7yvemvuqn7)
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Versions
The registry has recorded 1 version of this file, committed on Oct 14, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (21990 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
harness/harness-skills · 122 stars · license Apache-2.0 · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lwytzm7yvemvuqn7 GET https://markdownregistry.com/api/v1/resolve?ref=harness/harness-skills/create-agent GET https://markdownregistry.com/api/v1/blob/c655d4967d331379e4cae49ac721747b9e50a67bda42290e1df6e7b603d3cd3a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from harness/harness-skills
Every file in harness/harness-skills