3

3 is a skill for Claude Code, Codex from tonydzi/second-brain-starter-kit. It costs 97 tokens per session (2,774 once invoked), scanned A, original, MIT.

An agent command for having multiple Claude computers discuss a decision through a shared coordination channel and carry it out. It is triggered by /03 or phrases asking the agents to work something out among themselves.

In plain words
What is it for?
Use it for decisions or tasks that should be negotiated and executed by several connected agent machines.
Why use it?
It lets the participating agents exchange proposals and reach an agreed decision without the person relaying messages between them.

Skill for Claude CodeCodex

Part of the second-brain-skills plugin — 57 skills shipped together

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.

agentmods
npx agentmods add skills/tonydzi/second-brain-starter-kit/03
Any agent
npx skills add tonydzi/second-brain-starter-kit --skill 03
Clone the repo
git clone --depth 1 https://github.com/tonydzi/second-brain-starter-kit

Made for: Claude Code, Codex.

Or install second-brain-skills, the plugin that ships this one along with the rest of its 57 skills.

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 3

README.md
[![agentmods](https://agentmods.dev/badge/skills/tonydzi/second-brain-starter-kit/03.svg)](https://agentmods.dev/skills/tonydzi/second-brain-starter-kit/03)
Your own site
<a href="https://agentmods.dev/skills/tonydzi/second-brain-starter-kit/03"><img src="https://agentmods.dev/badge/skills/tonydzi/second-brain-starter-kit/03.svg" alt="Measured on agentmods" height="20"></a>
Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,774 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00097 $0.02774
Opus 5 $0.00048 $0.01387
Sonnet 5 $0.00019 $0.00555
Haiku 4.5 $0.00010 $0.00277

Measured 4d ago against content hash 8ef9b440d362, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

3 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 4d 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.

skills/03/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/03 — the machines find consensus by themselves

🧒 When reporting to a non-technical owner: finish with a simple "In plain words" recap (his rule [[eli5-always]]). Only in the message TO him.

The owner said "03" / "you handle it yourselves" → that is a MANDATE: the Claude peers negotiate among themselves and execute on their own. I do NOT ask for permission again — I announce and go. The owner is needed at exactly 2 gates (below).

Argument: /03 <topic/decision> — what to agree on. If there is no topic (a bare "03") — take the subject from the current conversation; if it is ambiguous, formulate the proposal from context yourself.

Aliases: 003 = 03 (the extra zero is ignored); case does not matter [[commands-case-insensitive]]. Do not confuse it with "02" — that is escalation TO the owner (the approval channel), the opposite direction.


Step 0 — Peer liveness ONLY from a live signal (pitfall 2026-07-04)

Before pinging a node or declaring "down/alive" — ask for a fact, don't guess from mtime:

python "%USERPROFILE%\.claude\scripts\_shared\clan_alive.py" [<node>]

Liveness = Syncthing connected==True OR a fresh .tg-seen-<node> (the Telegram rail). 🟡 = alive over Telegram, Syncthing flapped — that is NOT death. ⛔ NEVER judge by the mtime of file markers (.read-*, .robot-done-*, the presence of log-<node>.jsonl) — a Telegram-rail follower does not write them by design. Canon: [[peer-liveness-live-signal]].

Step 1 — A one-line announcement, WITHOUT waiting for a "yes"

Drop exactly one line to the owner and move on immediately (he can cancel, but I don't wait):

🤝 unless you object, I'm going to agree this with <peers> over the coordination channel: "<topic>"…

<peers> = the other machines of the fleet (the hub HUB-1, the laptop LAPTOP-1, teammates' machines). Who is online is visible on the bus; an exact list is not critical, the engine broadcasts to everyone.

Step 2 — Determine the risk tier (this decides whether the owner is needed)

  • Tier-0/1 (safe, reversible: which machine runs a background job, scheduling, format choice, tagging, a dedup judgement) → the peers close it themselves.
  • Tier-2 (money · outbound sends · irreversible · secrets · editing the SHARED canon CLAUDE.md / the Bible / operating-agreement) → even with agreement it is NOT auto-committed, it goes to the owner via the approval flow. In doubt — pick the higher tier (safer).

Read the full file on GitHub · 110 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. 4d ago First seen · 110 lines · 97 tokens per session scan A 8ef9b440d362

Subscribe to this mod's changes

3 is a skill published in the GitHub repository tonydzi/second-brain-starter-kit (5 stars, last pushed 5d ago), licensed MIT. It adds 97 tokens to every session and 2,774 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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