build-omnigent

build-omnigent is a skill for Claude Code, Codex from omnigent-ai/omnigent. It costs 24 tokens per session (2,279 once invoked), scanned A, original, Apache-2.0.

Templates and rules for creating valid Omnigent agent directories, including their configuration and instruction files.

In plain words
What is it for?
Choosing an agent directory name, writing config.yaml, defining instructions and built-in tools, and preparing agents for validation.
Why use it?
They provide the minimum structure an Omnigent agent needs so its specification can be loaded and, when available, checked by a validator.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents; mentions Claude Code; mentions AGENTS.md.

Good fit Choosing an agent directory name, writing config.yaml, defining instructions and built-in tools, and preparing agents for validation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/omnigent-ai/omnigent/build-omnigent
About the project

Omnigent is an open-source orchestration layer for running and coordinating different AI coding agents through one system. It is for developers who want to combine agents, apply policies and sandboxing, and continue sessions across devices. The catalogue add-ons extend its agent workflows.

omnigent-ai/omnigent · 9,752 stars · on GitHub · omnigent.ai

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add omnigent-ai/omnigent --skill build-omnigent
Clone the repo
git clone --depth 1 https://github.com/omnigent-ai/omnigent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for build-omnigent

README.md
[![agentmods](https://agentmods.dev/badge/skills/omnigent-ai/omnigent/build-omnigent.svg)](https://agentmods.dev/skills/omnigent-ai/omnigent/build-omnigent)
Your own site
<a href="https://agentmods.dev/skills/omnigent-ai/omnigent/build-omnigent"><img src="https://agentmods.dev/badge/skills/omnigent-ai/omnigent/build-omnigent.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,279 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.02279
Opus 5 $0.00012 $0.01140
Sonnet 5 $0.00005 $0.00456
Haiku 4.5 $0.00002 $0.00228

Measured 8d ago against content hash 531ef88a0043, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

build-omnigent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

omnigent/onboarding/agent/skills/build-omnigent/SKILL.md · 288 lines

How it starts

The opening of the file, as written. The whole thing — 288 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Generation

Use these patterns to generate a valid agent directory. Always generate the minimal set of files needed — don't over-engineer.

Every template below has been validated with the same parser/validator that omnigent server uses. If your environment exposes the validate_agent tool (the dedicated agent-authoring environment does), run it after generating files to confirm the spec loads. Load the omnigent-knowledge skill if you need the deeper field reference (executor types, os_env, guardrails, sandboxing).

Step 1: Choose a directory name

Use the agent name in kebab-case: my-research-agent/

Step 2: Generate config.yaml

Always include:

  • spec_version: 1
  • name (lowercase, hyphens OK)
  • description (one sentence)
  • instructions — path to a file (default AGENTS.md) or inline text. (prompt: is an accepted alias; instructions: wins if both are set.)
  • executor — how the agent runs. See Step 2a.

Include if needed:

  • tools.builtins — built-in tools. The current set is download_file, export_agent, list_files, search_conversations, upload_file, web_fetch, web_search. If the list_builtin_tools tool is available, call it for the authoritative live set rather than trusting this list.
  • tools.agents — sub-agents, by the name each declares under agents/ (a sub-agent's directory name may differ from its name).
  • os_env — filesystem/shell access for harness agents (see the shell-capable template).
  • interaction.modalities — if the agent handles images or files.
  • guardrails — runtime policy gates (see omnigent-knowledge).

Step 2a: Choose an executor

executor.type must be one of claude_sdk, agents_sdk, or omnigent. There is no llm executor — do not use it.

Need executor
A fresh, simple LLM agent (default) claude_sdk (Anthropic) or agents_sdk (OpenAI), in-process
Existing Claude SDK / OpenAI Agents SDK code claude_sdk / agents_sdk
A CLI/coding harness, shell + file tools, sub-agents omnigent + a config.harness

Read the full file on GitHub · 288 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 288 lines · 24 tokens per session scan A 531ef88a0043

Subscribe to this mod's changes

build-omnigent is a skill published in the GitHub repository omnigent-ai/omnigent (9,752 stars, last pushed today), licensed Apache-2.0. It adds 24 tokens to every session and 2,279 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

Codomyrmex

Full-spectrum coding workspace skill providing 627 production MCP @mcptool lines across 130 top-level modules. USE WHEN user says 'verify codomyrmex', 'codomyrmexVerify', 'audit codomyrmex', 'trust codomyrmex', 'codomyrmexTrust', 'trust tools', 'enable destructive tools', 'check pai status', 'codomyrmex tools'…

docxology/codomyrmex · 185 tokens

hugging-face-tool-builder

Use this skill when the user wants to build tool/scripts or achieve a task where using data from the Hugging Face API would help. This is especially useful when chaining or combining API calls or the task will be repeated/automated. This Skill creates a reusable script to fetch, enrich or process data.

synthetic-sciences/openscience · 67 tokens

ai-engineer

Builds production AI/ML systems — model training, fine-tuning, MLOps pipelines, model serving, evaluation frameworks, RAG optimization, and agent orchestration at scale. Use when the user asks to build, train, or deploy ML models, set up MLOps pipelines, optimize RAG systems, create inference endpoints, or design…

buiphucminhtam/forgewright · 78 tokens

data-scientist

!cat skills/shared/protocols/ux-protocol.md 2>/dev/null || true !cat skills/shared/protocols/input-validation.md 2>/dev/null || true !cat skills/shared/protocols/tool-efficiency.md 2>/dev/null || true !cat .production-grade.yaml 2>/dev/null || echo "No config — using defaults".

buiphucminhtam/forgewright · 52 tokens

agent-hub-init

Scaffold the agent-hub project profile (.claude/agent-hub/profile.yml + CLAUDE.md) for the current project so the super-team can specialize to it. Use when a project has no profile yet, or when the user says "onboard", "set up the team here", or "create the profile".

berkcangumusisik/agent-hub · 72 tokens

decision-log

Record and read architectural decisions (ADRs) for a project so the team's choices persist across sessions. Use when the user says "decide", "record this decision", "why did we choose X", or when a significant technical choice is made.

berkcangumusisik/agent-hub · 53 tokens