yolochat

yolochat is a skill for Claude Code, Codex from rcarmo/piclaw-addons. It costs 21 tokens per session (470 once invoked), scanned A, original, MIT.

A way to send unauthenticated, best-effort messages over HTTP to another reachable Piclaw agent instance. Messages include sender and recipient addresses and arrive in the recipient’s normal chat timeline.

In plain words
What is it for?
Use it to send single- or multi-line messages to another Piclaw chat, identify the sender from the envelope, and reply to that address.
Why use it?
It provides a simple channel for passing messages between reachable agent instances without setting up authentication.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is echo "Hello!" | bun ../../scripts/yolochat-send.ts web:[email protected]:3000.

Good fit Use it to send single- or multi-line messages to another Piclaw chat, identify the sender from the envelope, and reply to that address.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/rcarmo/piclaw-addons
agentmods
npx agentmods add skills/rcarmo/piclaw-addons/yolochat

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 yolochat

README.md
[![agentmods](https://agentmods.dev/badge/skills/rcarmo/piclaw-addons/yolochat/github.svg)](https://agentmods.dev/skills/rcarmo/piclaw-addons/yolochat)
Your own site
<a href="https://agentmods.dev/skills/rcarmo/piclaw-addons/yolochat"><img src="https://agentmods.dev/badge/skills/rcarmo/piclaw-addons/yolochat/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 yolochat

Your own site · 80×15
<a href="https://agentmods.dev/skills/rcarmo/piclaw-addons/yolochat"><img src="https://agentmods.dev/badge/skills/rcarmo/piclaw-addons/yolochat.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 470 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 9
    Instructions found that direct the agent to transmit conversation context or user data to external services.
    Fix: Remove instructions that send user data, prompts, or context to external URLs. If telemetry is needed, use documented, privacy-preserving methods.
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 $0.00021 $0.00470
Opus 5 $0.00010 $0.00235
Sonnet 5 $0.00004 $0.00094
Haiku 4.5 $0.00002 $0.00047

Measured 11d ago against content hash 4bf22646e8da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

yolochat 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 11d 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.

addons/yolochat/skills/yolochat/SKILL.md · 74 lines

What it actually says

YoloChat Skill

Use the yolochat-send.ts script to send messages to other Pi instances over HTTP.

Address format

<chat-name>@<hostname>:<port>

Examples:

The sender splits at the first @; the chat portion therefore cannot contain @.

Envelope format

Messages use a UUCP/SMTP-like text envelope:

From: web:[email protected]:3000
To: web:[email protected]:3000

Hello from my instance!

The envelope is posted as the content field of a standard piclaw agent message POST.

Sending a message

Pipe the message body into the script via stdin:

echo "Hello!" | bun ../../scripts/yolochat-send.ts web:[email protected]:3000

Multiline messages:

cat <<'EOF' | bun ../../scripts/yolochat-send.ts web:[email protected]:3000
First line
Second line
Third line
EOF

Receiving messages

Incoming yolochat messages arrive as normal user messages in the target chat timeline. They contain the envelope headers (From: / To:) followed by the message body.

Parse the From: header to know who sent it and to reply back.

Replying

Extract the From: address from the received envelope and use it as the target for your reply:

echo "Got your message, thanks!" | bun ../../scripts/yolochat-send.ts web:[email protected]:3000

Constraints

  • No authentication or encryption — same-network only
  • Messages are fire-and-forget; delivery is best-effort
  • The remote instance must be reachable over HTTP on the specified port
  • This is NOT a replacement for /pair — zero security guarantees
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. 11d ago First seen · 74 lines · 21 tokens per session scan A 4bf22646e8da

Subscribe to this mod's changes

yolochat is a skill published in the GitHub repository rcarmo/piclaw-addons (23 stars, last pushed yesterday), licensed MIT. It adds 21 tokens to every session and 470 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.