build-agent-team

build-agent-team is a skill for Claude Code from sshh12/claude-plugins. It costs 130 tokens per session (6,701 once invoked), scanned A, original, MIT.

A guide for designing a group of Claude Code agents that work together on one project over a long period. The agents share tasks and send messages to coordinate their work.

In plain words
What is it for?
Use it to plan an autonomous agent team, assign each agent a recurring area of responsibility, and create a command that starts the team.
Why use it?
It helps divide ongoing work between agents without requiring one person to manage every step or pass every message between them.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Part of the cc-essentials plugin — 2 skills shipped together

Good fit Use it to plan an autonomous agent team, assign each agent a recurring area of responsibility, and create a command that starts the team.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sshh12/claude-plugins/build-agent-team
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 sshh12/claude-plugins --skill build-agent-team
Clone the repo
git clone --depth 1 https://github.com/sshh12/claude-plugins

Made for: Claude Code.

Or install cc-essentials, the plugin that ships this one along with the rest of its 2 skills.

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 build-agent-team

README.md
[![agentmods](https://agentmods.dev/badge/skills/sshh12/claude-plugins/build-agent-team.svg)](https://agentmods.dev/skills/sshh12/claude-plugins/build-agent-team)
Your own site
<a href="https://agentmods.dev/skills/sshh12/claude-plugins/build-agent-team"><img src="https://agentmods.dev/badge/skills/sshh12/claude-plugins/build-agent-team.svg" alt="Measured on agentmods" height="20"></a>
Per session 130 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,701 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00130 $0.06701
Opus 5 $0.00065 $0.03351
Sonnet 5 $0.00026 $0.01340
Haiku 4.5 $0.00013 $0.00670

Measured 7d ago against content hash e84fc84ad48a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

build-agent-team 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 7d 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.

plugins/cc-essentials/skills/build-agent-team/SKILL.md · 282 lines

How it starts

The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.

build-agent-team

Designs a long-running agent team for the current project and writes a /start-<team>-team skill that boots it. The team runs autonomously for days or weeks, coordinating through a shared task list and direct messages.

A team is not a workflow — it is an organization that runs while you sleep. Every design decision in this skill is about making sure that organization stays pointed at the right thing without supervision.

Throughout this skill, "the operator" means the human admin running and supervising the team — the person who built and started it, the person it escalates to. This is distinct from any other humans the team may interact with as part of its work (customers, end users, external contacts), which we call out as such when relevant.

What an agent team is (and isn't)

A team is several Claude Code instances coordinating around a shared goal. Each teammate owns a closing loop — a recurring cycle from problem to closed solution. Teammates message each other directly; the lead coordinates without relaying every message.

Different from subagents (one-shot, report back to caller) and skills (encode a workflow inside one session). A team encodes parallel loops with their own cadences, memory, and judgment, sharing context but not waiting on each other.

Design teams around closing loops, not specialties

The biggest design mistake is anthropomorphizing a human org chart. Human orgs split by skill specialization; a single Claude instance is already broadly multi-domain, so splitting along functional lines mostly adds coordination overhead and handoff loss.

Instead, split by closing loops — verticals of work where one role takes a problem from input to closed solution. Loop shapes:

  • Metric loop: a number the role drives.
  • Problem loop: a system or domain the role monitors and fixes.
  • Leadership loop: direction, budget, institutional memory, cross-loop arbitration.
  • Platform (derivative) loop: improves the skills, prompts, context, tooling, or memory that other loops depend on. The output isn't a primary work product — it's the substrate that makes the primary loops better over time. Without one, executor quality is bounded by initial setup.

Read the full file on GitHub · 282 lines

Files

What ships with it

5 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.

  1. 7d ago First seen · 282 lines · 130 tokens per session scan A e84fc84ad48a

Subscribe to this mod's changes

build-agent-team is a skill published in the GitHub repository sshh12/claude-plugins (22 stars, last pushed 2mo ago), licensed MIT. It adds 130 tokens to every session and 6,701 once invoked, about $0.0006 per session on Opus 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 2026-08-30.

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