omega-agent-bus

omega-agent-bus is a skill for Claude Code, Codex from VrtxOmega/omega-brain-mcp. It costs 92 tokens per session (523 once invoked), scanned A, original, MIT.

A protocol for coordinating Codex with other agents through a shared message inbox. It requires checking and responding to agent messages before each user turn and state-changing tool call.

In plain words
What is it for?
Use it to drain the Codex inbox, read incoming messages, send replies, and coordinate work with agents such as Grok or Hermes.
Why use it?
It prevents pending work or review requests from being missed when several agents collaborate.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/rage/.codex/skills/omega-brain-v2-inbox/scripts/omega-brain-inbox.sh.

Good fit Use it to drain the Codex inbox, read incoming messages, send replies, and coordinate work with agents such as Grok or Hermes.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 omega-agent-bus

README.md
[![agentmods](https://agentmods.dev/badge/skills/vrtxomega/omega-brain-mcp/omega-agent-bus/github.svg)](https://agentmods.dev/skills/vrtxomega/omega-brain-mcp/omega-agent-bus)
Your own site
<a href="https://agentmods.dev/skills/vrtxomega/omega-brain-mcp/omega-agent-bus"><img src="https://agentmods.dev/badge/skills/vrtxomega/omega-brain-mcp/omega-agent-bus/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for omega-agent-bus

Your own site · 80×15
<a href="https://agentmods.dev/skills/vrtxomega/omega-brain-mcp/omega-agent-bus"><img src="https://agentmods.dev/badge/skills/vrtxomega/omega-brain-mcp/omega-agent-bus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 523 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.
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 $0.00092 $0.00523
Opus 5 $0.00046 $0.00262
Sonnet 5 $0.00018 $0.00105
Haiku 4.5 $0.00009 $0.00052

Measured 12d ago against content hash 13ddc34beac0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

omega-agent-bus 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 12d 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.

examples/codex-skills/omega-agent-bus/SKILL.md · 66 lines

What it actually says

Omega Agent Bus (Codex) — MANDATORY

Hard rule

First executable step every turn:

omsg-must-drain codex --json

If must_reply is true or new_message_count > 0:

  1. Read every message in the JSON messages array.
  2. Integrate into your work or reply on the same topic.
  3. Send via omega-brain-inbox.sh send or omega_send MCP on omega-brain-network.
  4. Lead with ACCEPT / REVISE / DEFER for review requests.
  5. Credit useful input from Grok or other agents.

Never claim the inbox is empty without running omsg-must-drain codex.

Never skip drain because the user asked something unrelated — drain first, then answer.

Always-on pickup (no Codex session required)

  • omsg-watch@codex delivers mail + desktop notify even when Codex is closed.
  • omsg-operator updates ~/.omega-brain/operator/attention.json.

Check without opening Codex:

omsg-attention

Send to Grok or others

/home/rage/.codex/skills/omega-brain-v2-inbox/scripts/omega-brain-inbox.sh send \
  --to grok \
  --topic "pcf-mcp-buildout" \
  --body "..." \
  --source codex

Message body: topic, objective, my-slice, invite, boundaries, artifact, credit.

Services

systemctl --user status omega-brain-network omsg-operator omsg-watch@codex

Watermark

State: ~/.omega-brain/inbox/codex/drain-state.json

Full doc: /home/rage/mcp-servers/omega-brain/docs/OMEGA_AGENT_BUS.md

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. 12d ago First seen · 66 lines · 92 tokens per session scan A 13ddc34beac0

Subscribe to this mod's changes

omega-agent-bus is a skill published in the GitHub repository VrtxOmega/omega-brain-mcp (5 stars, last pushed 4d ago), licensed MIT. It adds 92 tokens to every session and 523 once invoked, about $0.0005 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 2026-08-31.

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