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.
npx skills add skillmds/skillmd --skill b0git clone --depth 1 https://github.com/skillmds/skillmdWrote 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.
[](https://agentmods.dev/skills/skillmds/skillmd/b0)<a href="https://agentmods.dev/skills/skillmds/skillmd/b0"><img src="https://agentmods.dev/badge/skills/skillmds/skillmd/b0/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.
<a href="https://agentmods.dev/skills/skillmds/skillmd/b0"><img src="https://agentmods.dev/badge/skills/skillmds/skillmd/b0.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00086 | $0.01379 |
| Opus 5.5 | $0.00034 | $0.00552 |
| Sonnet 5 | $0.00017 | $0.00276 |
| Haiku 4.5 | $0.00009 | $0.00138 |
Grade A, and why
b0 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to b0 — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Box0 (b0) Multi-Agent Platform
Run AI agents in parallel. Create agents with roles, trigger them on demand or on a schedule, and collect results.
Setup
Step 1: Check if Box0 is installed
b0 --version
If this succeeds, skip to Step 3.
Step 2: Install
npm install -g @box0/cli@latest
If npm is not available, build from source:
git clone https://github.com/risingwavelabs/box0.git
cd box0 && cargo build --release
export PATH="$PWD/target/release:$PATH"
Step 3: Check if server is running
b0 server status
If this shows "Server is running", skip to Step 5.
Step 4: Start the server
b0 server
On first start, Box0 creates an admin account and auto-configures ~/.b0/config.toml.
Step 5: Install the skill
npx skills add risingwavelabs/skills --skill b0
Step 6: Verify
b0 ls
This should run without errors. Setup is complete.
Tell the user: "Box0 is installed and ready. You can now delegate tasks to agents."
When to use
When the user's request could benefit from specialized agents or parallel execution, delegate.
Choosing an agent
Always use b0 run with an existing agent or create one with b0 add. Use b0 ls to see what is available.
Use b0 add when:
- No existing agent matches the task
- The user wants a named agent for future reuse
Use b0 run <name> when:
b0 lsshows an existing agent that matches the task- The user mentions an agent by name ("ask the reviewer")
Commands
b0 ls # list available agents
b0 add <name> --instructions "..." # create a named agent
b0 add <name> --instructions "..." --every 1h --task "..." # create scheduled agent
b0 add <name> --instructions "..." --webhook # create agent with trigger URL
b0 add <name> --instructions "..." --webhook-secret s # create agent with HMAC secret
b0 rm <name> # delete an agent
b0 run <agent> "<detailed task prompt>" # trigger agent and wait for result
b0 run <agent> "<task>" --timeout 600 # trigger with custom timeout
b0 info <name> # show agent info including trigger URL
b0 logs <name> # show recent agent logs
b0 update <name> --instructions "..." # update agent instructions
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago First seen · 199 lines · 86 tokens per session scan A 64a348f911a1
b0 is a skill published in the GitHub repository skillmds/skillmd (1 stars, last pushed yesterday), licensed MIT. It adds 86 tokens to every session and 1,379 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to b0, differing in 1 line, and is treated as a copy.
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