What is agent-protocol?

A communication protocol for teams of executive-role AI agents. It defines how agents call one another, which roles are available, and how responses are formatted.

Use it to have roles such as CFO, CTO, legal counsel, or chief data officer exchange questions and coordinate cross-functional work.

It reduces repeated calls, communication loops, and unclear boundaries when several agents coordinate an analysis or meeting.

agent-protocol — Skill for Codex by bestagentkits/agency-skills

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 bestagentkits/agency-skills --skill agent-protocol

Clone the repo

git clone --depth 1 https://github.com/bestagentkits/agency-skills

Made for: 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bestagentkits/agency-skills/agent-protocol/github.svg)](https://agentmods.dev/skills/bestagentkits/agency-skills/agent-protocol)

Your own site

<a href="https://agentmods.dev/skills/bestagentkits/agency-skills/agent-protocol"><img src="https://agentmods.dev/badge/skills/bestagentkits/agency-skills/agent-protocol/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bestagentkits/agency-skills/agent-protocol"><img src="https://agentmods.dev/badge/skills/bestagentkits/agency-skills/agent-protocol.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,973 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00053	$0.03973
Opus 5.5	$0.00021	$0.01589
Sonnet 5.5	$0.00011	$0.00795
Haiku 4.5	$0.00005	$0.00397

Measured 2mo ago against content hash 72d480ce5dbd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-protocol 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 2mo 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.

skills/claude-skills/agent-protocol/SKILL.md · 452 lines

How it starts

The opening of the file, as written. The whole thing — 452 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Inter-Agent Protocol

How C-suite agents talk to each other. Rules that prevent chaos, loops, and circular reasoning.

Keywords

agent protocol, inter-agent communication, agent invocation, agent orchestration, multi-agent, c-suite coordination, agent chain, loop prevention, agent isolation, board meeting protocol

Invocation Syntax

Any agent can query another using:

[INVOKE:role|question]

Examples:

[INVOKE:cfo|What's the burn rate impact of hiring 5 engineers in Q3?]
[INVOKE:cto|Can we realistically ship this feature by end of quarter?]
[INVOKE:chro|What's our typical time-to-hire for senior engineers?]
[INVOKE:cro|What does our pipeline look like for the next 90 days?]

Valid roles: ceo, cfo, cro, cmo, cpo, cto, chro, coo, ciso, gc, cdo, caio, cco, vpe

Role token	Advisor skill
`gc`	general-counsel-advisor (legal, contracts, term sheets)
`cdo`	chief-data-officer-advisor (data strategy, training-data rights)
`caio`	chief-ai-officer-advisor (AI strategy, evals, AI risk)
`cco`	chief-customer-officer-advisor (retention, customer success)
`vpe`	vpe-advisor (engineering delivery, DORA, eng hiring)

Response Format

Invoked agents respond using this structure:

[RESPONSE:role]
Key finding: [one line — the actual answer]
Supporting data:
  - [data point 1]
  - [data point 2]
  - [data point 3 — optional]
Confidence: [high | medium | low]
Caveat: [one line — what could make this wrong]
[/RESPONSE]

Example:

[RESPONSE:cfo]
Key finding: Hiring 5 engineers in Q3 extends runway from 14 to 9 months at current burn.
Supporting data:
  - Current monthly burn: $280K → increases to ~$380K (+$100K fully loaded)
  - ARR needed to offset: ~$1.2M additional within 12 months
  - Current pipeline covers 60% of that target
Confidence: medium
Caveat: Assumes 3-month ramp and no change in revenue trajectory.
[/RESPONSE]

Loop Prevention (Hard Rules)

These rules are enforced unconditionally. No exceptions.

Read the full file on GitHub · 452 lines

Files

What ships with it

2 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.

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.

2mo ago First seen · 452 lines · 53 tokens per session scan A 72d480ce5dbd

Subscribe to this mod's changes

agent-protocol is a skill published in the GitHub repository bestagentkits/agency-skills (26 stars, last pushed 4mo ago), licensed MIT. It adds 53 tokens to every session and 3,973 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.

Building agents agentskills claude claudecode codex skills

agent-protocol next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
agent-protocolbestagentkits/agency-skills	Skill	26	4mo ago	MIT	A	53	Codex
reproduce-and-fix-issuesbacknotprop/pstack	Skill	4.1k	yesterday	MIT	A	48	Claude Code, Cursor
setup-pstackbacknotprop/pstack	Skill	4.1k	yesterday	MIT	A	62	Cursor
exposure-risk-quantificationelementalsouls/Claude-OSINT	Skill	3.0k	23d ago	MIT	A	235	Claude Code, Codex
no-commentsbacknotprop/pstack	Skill	4.1k	yesterday	MIT	A	20	Claude Code, Cursor
assess-contextpjt222/agent-almanac	Skill	44	today	MIT	A	90	Claude Code
aikidopjt222/agent-almanac	Skill	44	today	MIT	A	122	Claude Code