Han plugin for Grok Build

Name: Han
Author: testdouble

Community Claude Code plugin, installs in GrokPluginDevelopment

Han: AI skills and agents for "Solo" product engineers and small teams

How to install Han in Grok Build

1. Add this repo as a plugin marketplace in Grok Build (once per computer):

grok plugin marketplace add testdouble/han

2. Install the plugin:

grok plugin install han-communication@testdouble/han --trust

✓ Install-checked in Grok Buildchecked Oct 18, 2026

Review before you trust it. --trust lets this plugin's hooks, MCP servers and scripts run code on your computer. It's a community repo that neither xAI nor GrokStacks has reviewed, so read its code first.

This repo's marketplace has 14 plugins; we checked han-communication, han-core. Install another the same way: grok plugin install <name>@testdouble/han --trust (names under 'What it contains'). Then start a new Grok session, or press r in /plugins, to load it.

Inside Grok Build: type /plugins, open the Marketplace tab, press a and add testdouble/han, then select han-communication and press i.

Command format: Grok Build's plugin guide

What we checked: on Oct 18, 2026 it installed with grok 1.0.62 and Grok found 5 skills, 2 subagents. That's an install check only: we haven't run it in a live Grok session.

What it contains

Skills (5)

edit-for-readability — Applies Han's shared Human-Readable Output Standard to a target you already have — a file on disk, text pasted into the prompt, or a draft already produced in the conversation — by dispatching the readability-editor to rewrite its prose so
explanation-guidance — Surfaces Han's shared standard for explaining technical work to a reader who will not implement it into the calling skill's own context, so the caller writes its escalations, confirmation turns, and stops as a concrete outcome the reader co
readability-guidance — Surfaces Han's shared Human-Readable Output Standard — the readability rule and the writing-voice profile — into the calling skill's own context, so the caller drafts in voice and runs its self-check against the current standard sourced fro
pairing — Build work collaboratively in reviewable pieces, handing each piece back for review before starting the next, so the person stays in the lead and steers while the work happens instead of reviewing a finished result. Use when someone says to
project-discovery — Discovers the core attributes of the current code repository and its projects — languages, frameworks, tooling, and where things live — and writes a concise reference section directly into the project's AGENTS.md or CLAUDE.md for other skil

Subagents (16)

han-communication:readability-editor — Audits and rewrites a finished draft against the shared Human-Readable Output Standard, preserving every fact. Assumes the draft leads with context instead of the answer, buries its point, and carries
han-core:adversarial-security-analyst — Assumes all code is insecure, full of PII leaks, and an easy attack surface. Performs adversarial security analysis to prove real security vulnerabilities exist in first-party code and dependencies —
han-core:adversarial-validator — Assumes investigation evidence is WRONG and the proposed fix will FAIL. Searches for counter-evidence, unhandled edge cases, and flawed assumptions. Use for adversarial validation of investigation fin
han-core:behavioral-analyst — Analyzes the runtime behavior of a specified codebase focus area — data flow, error propagation, state management, and integration boundaries. Produces numbered behavioral findings with file paths and
han-core:codebase-explorer — Explores a codebase to discover implementation details for a specific feature or system. Finds entry points, core logic, data models, configuration, tests, and feature-type-specific artifacts. Use whe
han-core:concurrency-analyst — Analyzes concurrency and async patterns in a specified codebase focus area — race conditions, shared resource contention, deadlock potential, lock ordering, and async error handling. Produces numbered
han-core:content-auditor — Audits updated documentation against original source content to ensure no important facts were lost. Classifies facts as present, correctly removed, or missing, validates removals against the codebase
han-core:data-engineer — Adversarial data and database engineer who assumes the design is mis-normalized and indexed for a workload that does not exist. Audits schemas, migrations, queries, ORM code, document shapes, stream c
han-core:devops-engineer — Adversarial DevOps / Site Reliability engineer who assumes the current code will break in production. Audits features, changes, infrastructure, pipelines, Dockerfiles, IaC, and manifests against DORA
han-core:edge-case-explorer — Systematically discovers and catalogs edge cases that should be covered by tests for a given piece of code. Traces input sources, call chains, and integration boundaries to find boundary values, type
han-core:evidence-based-investigator — Investigates codebase issues by gathering concrete evidence — file paths, line numbers, code snippets, error messages, git history, and test coverage. Use when thorough, multi-angle research into a bu
han-core:gap-analyzer — Performs gap analysis between two artifacts — finds what's missing, incomplete, conflicting, or assumed when comparing a current state against a desired state. Delegate whenever the user wants to chec
han-core:information-architect — Adversarial information architect who assumes the current documentation is harder to find, orient in, and comprehend than it needs to be. Audits READMEs, API docs, plugin docs, ADR collections, tutori
han-core:junior-developer — Adversarial-collaboration generalist, three to five years in, who assumes every plan, design, requirement, code change, or in-flight discussion hides assumptions, muddied scope, and claims made withou
han-core:on-call-engineer — Adversarial on-call engineer who assumes application source will fail in production and the author will not be paged. Audits application source, not infrastructure, for code-level resilience anti-patt
han-core:plan-synthesizer — Synthesizes cross-specialist input into a plan the team can commit to, recording decisions, rejected alternatives with reasons, the evidence behind each call, and the items still open. Reads the input

Plugins in this marketplace (14)

han — Meta-plugin that installs the bundled Han suite. Has no components of its own; it depends on han-communication, han-core, han-documentation, han-research, han-planning, han-coding, han-github, and han-reporting so installing it pulls them all in. Does not bundle the opt-in han-feedback, han-atlassia
han-communication — Foundational communication plugin for the Han suite. Owns the canonical readability standard, writing-voice profile, and explanation standard, the readability-guidance skill that surfaces the first two into a calling skill's context for in-voice drafting, the explanation-guidance skill that surfaces
han-core — The shared foundation of the Han suite: the specialist agent roster the other plugins dispatch, the project-discovery skill with its project-scanner agent, and the canonical evidence and YAGNI rule files. The documentation skills live in han-documentation, the pre-planning research skills in han-res
han-documentation — Documentation skills for the Han suite: writing down what the team built and decided. Home of project-documentation, architectural-decision-record, and runbook. Depends on han-communication and han-core; bundled by the han meta-plugin.
han-research — Pre-planning knowledge-work skills for the Han suite: understanding a problem before anyone commits to a plan. Home of research, gap-analysis, and issue-triage, plus the research-analyst agent. Depends on han-communication and han-core; bundled by the han meta-plugin.
han-planning — Planning skills for the Han suite: specifying, planning, sequencing, breaking down, and stress-testing work before implementation. Home of plan-a-feature, plan-implementation, plan-a-phased-build, plan-work-items, and iterative-plan-review, plus the discussion-facilitator agent. Depends on han-commu
han-coding — Code-writing and execution skills for the Han suite. Home of the tdd skill, which drives a feature or behavior through a BDD-framed red-green-refactor loop with an enforced observed-failure gate. Depends on han-core and han-communication; bundled by the han meta-plugin.
han-github — GitHub-specific extensions to Han. Provides skills to post code reviews as PR comments, update a PR description with a consistent format, and other GitHub-facing workflows.
han-reporting — Reporting and summary skills for the Han suite. Turns feature specifications into plain-language stakeholder summaries (also called executive or business summaries) with diagrams, for sharing with non-technical stakeholders before implementation kicks off.
han-feedback — Post-session feedback skill for the Han suite. Captures structured observations, ratings, and improvement ideas on the Han skills you ran in a session and optionally posts them as a GitHub issue to testdouble/han. Opt-in: installed on its own, not pulled in by the han meta-plugin.
han-atlassian — Atlassian-facing extensions to the Han suite. Adds markdown-to-confluence, which publishes a local Markdown file to a user-specified Confluence page; project-documentation-to-confluence, which runs the han-documentation project-documentation skill and then publishes the result there; investigate-to-
han-linear — Linear-facing extensions to the Han suite. Adds work-items-to-linear, which creates one Linear issue per slice from a work-items file. Works through the Linear MCP server and requires it to be configured. Depends on no other Han plugin. Opt-in: installed on its own, not pulled in by the han meta-plu
han-ddd — Strategic Domain-Driven Design analysis for the Han suite. Discovers domain boundaries, identifies bounded context candidates (strongly expressed, latent, and speculative), finds boundary leaks, and produces an evidence-backed domain and context map for an existing codebase. Depends on han-communica
han-plugin-builder — Guidance for building Claude Code skills, agents, and plugins. The guidance skill answers authoring questions and, run with init, vendors the full guidance set into a repo as a path-scoped rule index so the right guidance surfaces while editing skill and agent files. Opt-in and dependency-free: inst

About this listing

Han is a community plugin on GitHub by testdouble, written as a Claude Code plugin that Grok Build installs. We install-checked it in Grok; we haven't run it in a live session or reviewed its code. When we installed it, Grok found 5 skills, 16 subagents, 14 plugins in this marketplaces. Its license is MIT. We checked commit abba73a77352. It's one of 409 listings in the Development category on GrokStacks.

Han FAQ

How do I install Han in Grok Build?

Add the repo as a marketplace with grok plugin marketplace add testdouble/han, then run grok plugin install han-communication@testdouble/han --trust. This repo's marketplace has 14 plugins; we checked han-communication, han-core. Install another the same way: grok plugin install <name>@testdouble/han --trust (names under 'What it contains'). Then start a new Grok session, or press r in /plugins, to load it.

Is Han an official Grok Build plugin?

No. Han is a community plugin on GitHub by testdouble, not in xAI's official Grok Build marketplace. We checked that it installs and what Grok loads from it, but haven't run it in a live Grok session or reviewed its code.

What does Han include?

According to what Grok loaded in our install check, Han includes 5 skills, 16 subagents, 14 plugins in this marketplaces: edit-for-readability, explanation-guidance, readability-guidance, pairing, project-discovery, han-communication:readability-editor….

Details

Type: Plugin
Category: Development
Source: Community Claude Code plugin, installs in Grok
License: MIT
Author: testdouble
Keywords: claude, claude-code, claude-code-plugin, claude-skills, code-review, documentation, investigation, planning, review
Source repo: https://github.com/testdouble/han
Checked commit: abba73a77352
Checked by GrokStacks: Install-checked in Grok Build on Oct 18, 2026; not run in a live session

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Markdown

[![Listed on GrokStacks](https://grokstacks.com/badge.svg)](https://grokstacks.com/p/han/)

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HanCommunity plugin for Grok Build · 5 skills, 16 subagents, 14 plugins in this marketplacesHan: AI skills and agents for "Solo" product engineers and small teamsView on GrokStacks →

<a href="https://grokstacks.com/p/han/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #2a2e3c;border-radius:12px;background:#0a0b0f;color:#e8eaf0;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#e8eaf0">Han</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#9aa0b1">Community plugin for Grok Build · 5 skills, 16 subagents, 14 plugins in this marketplaces</span><span style="display:block;margin:0 0 10px;color:#c9cdd8">Han: AI skills and agents for &quot;Solo&quot; product engineers and small teams</span><span style="font-size:12px;font-weight:600;color:#7c9cff">View on GrokStacks →</span></a>

Markdown summary

**[Han on GrokStacks](https://grokstacks.com/p/han/)**: Community plugin for Grok Build with 5 skills, 16 subagents, 14 plugins in this marketplaces. Install: `grok plugin install han-communication@testdouble/han --trust` (after `grok plugin marketplace add testdouble/han`)

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