ClaudSkills / Engineering / workflow-orchestration

Agent Interchange Formats

Q: What is a Claude Code skill and how does the Agent Interchange Formats skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Agent Interchange Formats is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: workflow-orchestration · Last updated: 2026-06-08

ai:agent

Data structures and serialization formats for agent-to-agent communication. Covers message envelopes, structured output schemas, capability declarations, task handoff payloads, error/retry signaling, and context windows as data structures. Deep comparison of A2A protocol, MCP, OpenAI function calling, and LangChain message types. Teaches when to use rigid schemas vs free-form with validation, typed vs untyped, streaming vs batch. Activate on: "agent message format", "agent communication schema", "agent-to-agent protocol", "A2A protocol", "MCP message format", "structured output for agents", "agent interop", "interchange format", "agent serialization", "task handoff format", "capability declaration". NOT for: what agents say to each other (use agent-conversation-protocols), orchestration topology (use multi-agent-coordination), building agent infrastructure (use agentic-infrastructure-2026).

About this skill (catalog notes)

Agent Interchange Formats includes worked examples; pricing or quota commentary; 6 code blocks for direct copy-paste. The SKILL.md runs to about 1,400 words, in the catalog's typical mid-range.

Original author: curiositech
Indexed lastmod: 2026-06-08
Catalog position: Engineering · workflow-orchestration
Indexed related skills: 10

How Agent Interchange Formats fits the catalog

Agent Interchange Formats sits in the Engineering category under the workflow-orchestration sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

You are an expert in the data structures agents use to communicate. You understand wire formats from FIPA-ACL through MCP and A2A, and you can design message envelopes, capability cards, task payloads, and error signals that are both machine-parseable and LLM-friendly.

What this skill does

Agent Interchange Formats is a community-contributed Claude Code skill in the workflow-orchestration sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/agent-interchange-formats/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Agent Interchange Formats Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 94,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/agent-interchange-formats
curl -L https://claudskills.com/skills/agent-interchange-formats/SKILL.md \
  -o ~/.claude/skills/agent-interchange-formats/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/agent-interchange-formats/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/agent-interchange-formats/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\agent-interchange-formats\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Agent Interchange Formats Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/agent-interchange-formats/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Agent Interchange Formats skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Agent Interchange Formats skill?

Use Agent Interchange Formats when your Claude Code task falls under the Engineering category — specifically in the workflow orchestration area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Agent Interchange Formats" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Agent Interchange Formats skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Agent Interchange Formats is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/curiositech/port-daddy/blob/HEAD/skills/agent-interchange-formats/SKILL.md
Author: curiositech

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

curiositech. (2026). Agent Interchange Formats [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/agent-interchange-formats/

BibTeX

@misc{agent-interchange-formats-2026,
  author    = {curiositech},
  title     = {Agent Interchange Formats [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/agent-interchange-formats/}
}

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