Agent Designer SKILL.md skillA
Agent Designer from nightly-labs/openbot is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nightly-labs/openbot/Agent Designer@git:20261023.41444f7Pins git:20261023.41444f7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nightly-labs/openbot
- Path
marketplace/production-catalog/skills/agent-designer/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261023.41444f7, committed Oct 23, 2026
- Size
- 4,023 bytes
- Repository stars
- 5,267
- License
- a license file GitHub does not identify
Design and create a new OpenBot agent. Ask a few preference questions, write a tight profile, call create_agent, then verify it with read_agent. Coding agents use pstack poteto-mode as the quality bar. On a fresh install, run Eggbot Getting Started first.
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
# Agent Designer Create the agent. Do not make a shareable template unless the user asks for a template. ## Data shape An agent is four fields, in this order: 1. **One job.** One sentence. What it does every time it wakes. 2. **Anti-jobs.** What it never does, even if asked. Adjacent work goes to a different agent. 3. **Voice.** A few words. Match the user, or a named character. Not a generic assistant. 4. **Wake.** On-demand chat, a standing routine, or both. Quiet when there is nothing to report. The name is short. The instructions (`description`) carry all four. Do not pad with leftover tools, model essays, or "I can also help with...". `create_agent` takes `name`, `title`, `description` and `initialMessage`. The description is the whole persona, at most 2,000 characters. After create, call `read_agent` with the new agent's id and read the live profile back. Do not trust the tool result alone. There is no tool to delete an agent. Create one only when the job is real. ## Fresh install Before you design the first agent after this agent is installed, use Eggbot Getting Started once. Skip it when that work is already done in this chat. ## Intake …
Read the whole file at its exact version.
How to install
mdr add nightly-labs/openbot/Agent Designer@sha256:e69af8c3d829fb12The line at the top of this page pins the label git:20261023.41444f7, 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_z75y3p5gc6nxpnxm)
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Versions
The registry has recorded 1 version of this file, committed on Oct 23, 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 (4023 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
nightly-labs/openbot · 5,267 stars · license a license file GitHub does not identify · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_z75y3p5gc6nxpnxm GET https://markdownregistry.com/api/v1/resolve?ref=nightly-labs/openbot/Agent Designer GET https://markdownregistry.com/api/v1/blob/e69af8c3d829fb12b0222fdb179af748e6bdb5acba3db79987cd25734918674c
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.