Claude Code Plugin

Wire your agent into a full product team

A coding agent's default config is a blank slate. addit-harness installs an opinionated plan → verify → commit loop, twelve specialized subagents, and auto-loaded language conventions — curated from established sources, not hand-rolled.

MIT licensed · Go · Java · TypeScript · zero config to start

Install

claude code
/plugin marketplace add addit-digital/addit-harness
/plugin install addit-harness@addit
/addit-harness:setup
syncing agents/ · skills/ · rules/ · settings.json

Verify it worked

/help
✓ @addit-harness:code-reviewer and friends listed under Agents
3 commands, no clone required ● ready
PLAN VERIFY COMMIT THE ENGINEERING LOOP — ALWAYS ON
One config · four agents
Claude Code
native plugin · this listing
rules sync
AGENTS.md sync
steering sync
Before / After

Blank slate vs. harnessed

Same agent. The difference is what fires automatically, every session, on every machine.

LayerBlank slateWith addit-harness
Engineering processAd-hoc, re-decided every sessionPlan → verify → commit loop baked in
Legal complianceManual check, or skipped before shipping@saas-legal-advisor assesses every feature's legal impact
Language conventionsRe-pasted into context every sessionAuto-loaded per file type — Go, Java, TypeScript
Code review"Hey Claude, can you review this?"@code-reviewer enforces conventions with file:line citations
UX & designDescribe it and hope@ux-designer → @figma-designer → @frontend-architect pipeline
New machineRedo everything by handThree commands
What's wired in

Six connectors, one harness

Every layer of the build — idea to ship — has a specialized agent behind it.

01 · LOOP

Plan → verify → commit

Non-trivial work gets a written plan, small verifiable units, and real verification before it's called done — never an unverified "done."

02 · AGENTS

12 specialized subagents

Legal compliance, UX design, backend/frontend/cloud architecture, Go/Java/TS implementation, and DevOps — each scoped, each with its own model tier.

03 · CONVENTIONS

Tiered language rules

Go, Java, and TypeScript conventions auto-load per file type — thin pointers at all times, deep references pulled in only for substantial work.

04 · REVIEW

Convention-aware review

@code-reviewer checks correctness, security, and adherence to your vendored conventions — with file:line citations, not vague notes.

05 · CURATED

Vendored, not vibes

Assets are adopted from established sources and pinned at a commit — provenance tracked in AGENTS_SOURCES.md. A thin curation layer, not bespoke skills.

06 · PORTABLE

One source, four agents

AGENTS.md is the canonical memory — Claude Code, Cursor, Codex CLI, and Kiro all sync from the same source of truth.

How it works

One feature, six handoffs

A concrete build, start to ship — the subagents from "What's wired in," in the order they actually fire.

01

Investigate

@feature-investigator

02

Legal + UX

@saas-legal-advisor · @ux-designer

03

Architecture

@frontend-architect

04

Build

@backend-developer · @frontend-developer

05

Review

@code-reviewer

Get started

Three commands. Every session, wired.

Install from the Claude Code plugin marketplace — no clone, no shell script.