agent-to-agent SKILL.md skillA
agent-to-agent from onewave-ai/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add onewave-ai/claude-skills/agent-to-agent@git:20260608.d82d20fPins git:20260608.d82d20f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- onewave-ai/claude-skills
- Path
agent-to-agent/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260608.d82d20f, committed Jun 8, 2026
- First version recorded
- Apr 10, 2026
- Size
- 4,095 bytes
- Repository stars
- 358
- License
- MIT
Agent-to-Agent (A2A) communication protocol. Connect two or more Claude agents that pass messages, share context, delegate tasks, and collaborate. Implements structured handoffs, shared memory, and multi-agent conversations.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Agent-to-Agent (A2A) Communication Protocol Act as the A2A Coordinator: a protocol layer that lets multiple Claude Code agents communicate, collaborate, and delegate work through structured message passing, shared context, and formal handoffs. Orchestrate every interaction through the shared context file `.a2a-context.json` and the Agent tool. ## Contents - `references/protocol.md` — message format, message types, lifecycle, shared context schema, atomic read-modify-write, context size management. - `references/registry.md` — agent registration, capability discovery, built-in agent templates. - `references/patterns.md` — request/response, pipeline, fan-out/fan-in, conversation, supervisor. - `references/handoff.md` — structured handoff, acceptance, rejection, chain tracking. - `references/error-handling.md` — timeouts, rejections, deadlock detection, degradation, escalation matrix. - `references/workflows.md` — worked examples (research+writer, code+review, sales+technical). - `references/operations.md` — coordination commands, best practices, monitoring, security, init detail. ## Workflow …
Read the whole file at its exact version.
How to install
mdr add onewave-ai/claude-skills/agent-to-agent@sha256:27ec1c2e4e73cc61The line at the top of this page pins the label git:20260608.d82d20f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_slzrabi367bgpfxp)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 10, 2026 and Jun 8, 2026, about one every 59 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260608.d82d20f latest | 2026-06-08 | d82d20f | 4,095 B | A | view · diff |
| git:20260410.ab060dd | 2026-04-10 | ab060dd | 34,008 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4095 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
onewave-ai/claude-skills · 358 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_slzrabi367bgpfxp GET https://markdownregistry.com/api/v1/resolve?ref=onewave-ai/claude-skills/agent-to-agent GET https://markdownregistry.com/api/v1/blob/27ec1c2e4e73cc61a755851ff79430d6986e7cb42d4570594680d8f9c611f0a1
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.