lucia-chat

lucia-chat is a skill for Claude Code, Codex from ohm41321/luciazero. It costs 55 tokens per session (1,652 once invoked), scanned A, original, MIT.

A terminal-based tool for connecting two separate coding-agent sessions through the Luciazero Agent Bus, a message channel between agents. It opens terminal panes so you can watch their messages as they arrive.

In plain words
What is it for?
Use it to start or monitor conversations between agents such as Codex and Claude, and to inspect the live message transcript.
Why use it?
It makes it easier to see which agent is waiting, what messages were exchanged, and what action is needed to unblock the work.

Skill for Claude CodeCodex

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

Part of the luciazero plugin — 15 skills, 1 agent, 7 hooks shipped together

Good fit Use it to start or monitor conversations between agents such as Codex and Claude, and to inspect the live message transcript.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ohm41321/luciazero/lucia-chat
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 ohm41321/luciazero --skill lucia-chat
Clone the repo
git clone --depth 1 https://github.com/ohm41321/luciazero

Made for: Claude Code, Codex.

Or install luciazero, the plugin that ships this one along with the rest of its 15 skills, 1 agent, 7 hooks.

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 lucia-chat

README.md
[![agentmods](https://agentmods.dev/badge/skills/ohm41321/luciazero/lucia-chat/github.svg)](https://agentmods.dev/skills/ohm41321/luciazero/lucia-chat)
Your own site
<a href="https://agentmods.dev/skills/ohm41321/luciazero/lucia-chat"><img src="https://agentmods.dev/badge/skills/ohm41321/luciazero/lucia-chat/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 lucia-chat

Your own site · 80×15
<a href="https://agentmods.dev/skills/ohm41321/luciazero/lucia-chat"><img src="https://agentmods.dev/badge/skills/ohm41321/luciazero/lucia-chat.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,652 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 $0.00055 $0.01652
Opus 5 $0.00028 $0.00826
Sonnet 5 $0.00011 $0.00330
Haiku 4.5 $0.00006 $0.00165

Measured today against content hash d47f4ff5cdb3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

lucia-chat 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 today.

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.

skills/lucia-chat/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Lucia Chat

/lucia-bus is how you take part in the bus. This is how the user sets up a conversation between two other sessions: one window per agent, and an optional read-only pane showing every message as it lands.

After ./install.sh, lucia is that command from anywhere and luciazero-agentd is the same program under its long name. Without the launcher, each command below is the same one run as python3 -m luciazero_agentd from the repository's agentd/ directory, which is the form the bus itself prints. Run them in the user's terminal, or hand them over to paste. Never start a provider session on their behalf without being asked to.

1. Start here, always

lucia next

It reads the bus and answers the only question the user actually has — what is waiting on whom — as the command that unblocks it, most blocking first: a delivery nobody could deliver or a task that ran out of budget (both need a person to decide something), then each agent with unread messages and the command that opens its session in its own worktree. If the daemon is down it says so and nothing else, because nothing else can happen first:

lucia serve

Read the answer back to the user and offer to run the command it names; do not paraphrase it into different commands. status is still there for the full picture, and next never writes anything.

2. Open one window per agent

lucia claude
lucia codex

The provider is the verb: each starts that provider with the binding already in place, as the agent whose id is the provider's own name. A second window for the same provider needs a name of its own or the bus refuses the duplicate — lucia claude --as reviewer is the agent claude-reviewer. An id that is not a provider's name takes the long form, which is what chat prints:

lucia run --agent codex-architect -- codex

Each agent's git checkout must be its own: start the second session from a separate worktree, or worktree_bind refuses it. A daemon is started if this state directory has none; --no-autostart refuses instead of starting one.

Read the full file on GitHub · 153 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. today Changed · +37 lines d47f4ff5cdb3
  2. 3d ago First seen · 116 lines · 55 tokens per session scan A cfe730a5adec

Subscribe to this mod's changes

lucia-chat is a skill published in the GitHub repository ohm41321/luciazero (5 stars, last pushed today), licensed MIT. It adds 55 tokens to every session and 1,652 once invoked, about $0.0003 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 2026-09-05.

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