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Harness (Agent Team Designer)

Skill Productivity Usable

Meta-skill that designs domain-specific agent teams using 6 architectural patterns (Pipeline, Fan-out/Fan-in, Expert Pool, Producer-Reviewer, Supervisor, Hierarchical Delegation). Auto-generates agent definitions and skill files. — rapid growth.

1,919 starsApache-2.0 (commercial OK)FreeQuick setup
Fair rating — This tool is functional but has notable gaps. Review the evaluation notes below before deploying.

Multi-agent orchestration is a core enterprise AI architecture pattern — a meta-skill that designs the right team topology for any project reduces the expertise required to deploy agentic systems.

AI architects and senior developers building complex multi-agent systems who need a structured approach to decomposing work across specialized agents.

Claude Code Claude Cowork Claude Chat

https://github.com/revfactory/harness

By revfactory

How to Get It

Option 1: Claude Desktop App (Code Mode)Click the + button next to the prompt box → PluginsAdd plugin. Search and click Install. Skills work in Claude Code only.
Option 2: Paste into Claude CodeCopy the command below and paste it into your conversation. Claude will install it.
Command
/plugin marketplace add revfactory/harness && /plugin install harness@harness

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

Time to functional15 minutesCostFree

Trust Signals Reviewed

Stars1,919Contributors2Last updated2026-04-05LicenseApache-2.0 (OK for commercial use)Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-04-06 · scanner v1

Community Pulse Active

Discussed on Hacker News, Reddit

44 mentions across 2 sources

Reviewer notes

Reviewed review. These are observations, not a security certification.

67 stars, Apache 2.0 license, 6 architecture patterns documented with validation and dry-run phases. Lower reliability (3) because relatively new tool (67 stars) with limited production track record. Well-structured with explicit validation steps. Client readiness tier-2 because outputs require technical evaluation.

Apache 2.0 license. Pure SKILL.md + reference docs with no external dependencies or runtime code. Generates .claude/agents/ and .claude/skills/ files locally — no network calls. Individual developer maintainer.

2026-05-10: Useful for getting a multi-agent architecture off the ground faster—you describe a domain problem and Harness maps it to one of six team topologies, then spits out agent definitions and skill stubs. In practice, that scaffolding saves the whiteboard argument but not the real work: the generated files are starting points, not production-ready configs, and vague requirements produce generic output you'll spend time unwinding anyway. With only 2 contributors and 2 production mentions despite strong star growth, treat this as a design accelerator for architects who already know what they're doing, not a turnkey solution for teams new to agentic systems.

2026-04-02: LIMITATION: Generates agent topology blueprints but doesn't validate that generated agents actually work. Outputs require hands-on testing before production use.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation

Ease of Use
3/5
Versatility
3/5
Reliability
3/5
Security
5/5
Overall score3.30 / 5.00 UsableEvaluatedMar 2026
67 stars, Apache 2.0 license, 6 architecture patterns documented with validation and dry-run phases. Lower reliability (3) because relatively new tool (67 stars) with limited production track record. Well-structured with explicit validation steps. Client readiness tier-2 because outputs require technical evaluation.

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