cli-a2a

cli-a2a is a skill for Claude Code, Codex from leecyno1/boutique-skills. It costs 43 tokens per session (567 once invoked), scanned A, a copy of cli-a2a, MIT.

A command-line client for communicating with an Agent-to-Agent (A2A) server, a service that lets software agents send tasks to one another. It uses JSON-RPC 2.0, a standard format for calling remote operations.

In plain words
What is it for?
Use it to check server status, view its agent card and skills, invoke skills with JSON input, list or inspect tasks, and cancel or watch running work.
Why use it?
It gives developers a direct way to inspect available agent skills, send tasks, and check execution history without building a separate client.

Skill for Claude CodeCodex

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

Good fit Use it to check server status, view its agent card and skills, invoke skills with JSON input, list or inspect tasks, and cancel or watch running work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/leecyno1/boutique-skills/cli-a2a
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 leecyno1/boutique-skills --skill cli-a2a
Clone the repo
git clone --depth 1 https://github.com/leecyno1/boutique-skills

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 cli-a2a

README.md
[![agentmods](https://agentmods.dev/badge/skills/leecyno1/boutique-skills/cli-a2a/github.svg)](https://agentmods.dev/skills/leecyno1/boutique-skills/cli-a2a)
Your own site
<a href="https://agentmods.dev/skills/leecyno1/boutique-skills/cli-a2a"><img src="https://agentmods.dev/badge/skills/leecyno1/boutique-skills/cli-a2a/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 cli-a2a

Your own site · 80×15
<a href="https://agentmods.dev/skills/leecyno1/boutique-skills/cli-a2a"><img src="https://agentmods.dev/badge/skills/leecyno1/boutique-skills/cli-a2a.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 567 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 100% copy Near-identical to another mod 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 $0.00043 $0.00567
Opus 5 $0.00022 $0.00283
Sonnet 5 $0.00009 $0.00113
Haiku 4.5 $0.00004 $0.00057

Measured 9d ago against content hash 0a19e329dae2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cli-a2a 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 9d 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.

Origin

This is a copy

100% identical to cli-a2a — 0 lines 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.

skills/default/cli-a2a/SKILL.md · 143 lines

What it actually says

Overview

Interact with the OmniRoute A2A server from the CLI. Send tasks, inspect skill execution history, and test the JSON-RPC 2.0 agent-to-agent protocol interactively.

Quick install

npm install -g omniroute   # or: npx omniroute
omniroute --version

Subcommands

a2a

Agent-to-Agent (A2A) server

Example:

omniroute a2a

a2a status

Show A2A server status

Flags:

  • --json

Example:

omniroute a2a status

a2a card

Print the Agent Card JSON

Example:

omniroute a2a card

a2a skills

Example:

omniroute a2a skills

a2a invoke <skill>

Flags:

  • --input <json>
  • --input-file <path>
  • --wait
  • --timeout <ms>

Example:

omniroute a2a invoke <skill>

a2a tasks

Example:

omniroute a2a tasks

a2a list

Flags:

  • --status <s>
  • --skill <s>
  • --limit <n>
  • --since <ts>

Example:

omniroute a2a list

a2a get <id>

Example:

omniroute a2a get <id>

a2a cancel <id>

Flags:

  • --yes

Example:

omniroute a2a cancel <id>

a2a watch <id>

Example:

omniroute a2a watch <id>

a2a stream <id>

Example:

omniroute a2a stream <id>

a2a logs <id>

Example:

omniroute a2a logs <id>
Files

What ships with it

1 file 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.

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. 9d ago First seen · 143 lines · 43 tokens per session scan A 0a19e329dae2

Subscribe to this mod's changes

cli-a2a is a skill published in the GitHub repository leecyno1/boutique-skills (5 stars, last pushed today), licensed MIT. It adds 43 tokens to every session and 567 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to cli-a2a, differing in 0 lines, and is treated as a copy.

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