han: Instructions file for Claude Code

CLAUDE.md

han CLAUDE.md is an instructions file for Claude Code from testdouble/han. It costs 7,884 tokens per session, scanned A, original, MIT.

Repository instructions for the Han Claude Code plugin suite, covering its project structure, documentation, agents, and skills.

In plain words
What is it for?
Understanding the Han plugin family, finding relevant files and workflows, and creating or updating skills, agents, plugins, and documentation.
Why use it?
They give coding agents the project context and tell them which documentation and entry points to use, reducing guesswork when working in the repository.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions .claude-plugin; mentions CLAUDE.md.

This is testdouble/han's own configuration. It tells Claude Code how to work on han itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything han configures →

Reuse

Borrowing it

Nothing to install: this file belongs to testdouble/han. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/testdouble/han/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/testdouble/han

Made for: Claude Code.

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Per session 7,884 This file is loaded in full into every session.
When invoked 7,884 The same file — it is already loaded in full.
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 $0.07884 $0.07884
Opus 5.5 $0.03154 $0.03154
Sonnet 5.5 $0.01577 $0.01577
Haiku 4.5 $0.00788 $0.00788

Measured 1mo ago against content hash 5342acd22c13, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

han CLAUDE.md 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 1mo 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.

CLAUDE.md · 359 lines

How it starts

The opening of the file, as written. The whole thing — 359 lines — stays where its author put it; the contents beside it link to each section on GitHub.

han: Project Map

Han is a Claude Code plugin suite for solo (or small-team) product engineers. It packages evidence-based planning, deep code review, investigation, and documentation workflows into deterministic slash commands that dispatch specialist sub-agents to do the judgment-heavy work. The suite ships as a family of plugins: han-communication (the foundational plugin beneath every other: it owns the canonical readability standard, the writing-voice profile, and the explanation standard for talking to a reader who will not implement the work, plus the inline readability-guidance skill that surfaces the first two, the inline explanation-guidance skill that surfaces the third, the edit-for-readability skill, the readability-editor agent, and the han-readability and han-concise output styles that apply the first two to every turn of a session; it depends on nothing and every prose-producing plugin depends on it), han-core (the shared foundation: the specialist agent roster the rest of the suite dispatches — every shared agent except the readability-editor, the research-analyst, and the discussion-facilitator — plus the project-discovery skill, the pairing collaborative working mode, and the canonical rule files; depends on no other Han plugin), han-documentation (the documentation skills: project-documentation, architectural-decision-record, and runbook; depends on han-communication and han-core and is bundled by the han meta-plugin), han-research (the pre-planning knowledge-work skills — research, gap-analysis, and issue-triage — plus the research-analyst agent; depends on han-communication and han-core and is bundled by the han meta-plugin), han-planning (the planning skills you reach for before implementation: specifying with plan-a-feature, planning a restructure of existing code with plan-a-change, planning the build with plan-implementation, sequencing it with plan-a-phased-build, breaking it into work with plan-work-items, and stress-testing plans with iterative-plan-review, plus the discussion-facilitator agent that audits a planning discussion in progress; depends on han-communication and han-core and is bundled by the han meta-plugin), han-coding (the coding skills you reach for while working in code: writing it with tdd and refactor, designing an interface contract with design-an-api, plus reviewing, overviewing, analyzing, testing, investigating, and standardizing it with code-review, code-overview, code-walkthrough, architectural-analysis, automated-test-planning, manual-test-planning, investigate, and coding-standard; depends on han-communication and han-core and is bundled by the han meta-plugin), han-github (GitHub-facing skills), han-reporting (reporting and summary skills; depends only on han-communication), han (a meta-plugin that installs han-communication, han-core, han-documentation, han-research, han-planning, han-coding, han-github, and han-reporting via dependencies), han-feedback (an opt-in plugin carrying the post-session feedback skill, which depends on no other Han plugin and is deliberately not bundled by the han meta-plugin, so it is installed separately), han-atlassian (an opt-in plugin carrying the Atlassian skills — Confluence publishing and work-items-to-Jira — which depends on han-communication, han-core, han-documentation, han-planning, and han-coding because its wrapper skills run skills from each, requires a configured Atlassian MCP server, and is likewise not bundled by the han meta-plugin), han-linear (an opt-in plugin carrying the work-items-to-Linear skill, which depends on no other Han plugin, requires a configured Linear MCP server, and is likewise not bundled by the han meta-plugin), han-ddd (an opt-in plugin carrying the ddd-analysis skill plus the bounded-context-critic, bounded-context-modeler, business-capability-analyst, domain-language-analyst, domain-ownership-analyst, and domain-visualizer agents — strategic Domain-Driven Design analysis for discovering bounded context candidates, business capabilities, domain language signals, and domain ownership patterns, constructing and evaluating semantic bounded context models, producing a domain and context map, and rendering it as diagrams; depends on han-communication and han-core; NOT bundled by the han meta-plugin), and han-plugin-builder (an opt-in plugin carrying the guidance for building skills and plugins, plus the interview-driven skill-builder and agent-builder skills that author a new skill or agent from scratch and review it against that guidance; it depends on nothing and is also deliberately not bundled by the han meta-plugin).

Read the full file on GitHub · 359 lines

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. 1mo ago Changed · +28 lines · +754 tokens per session 5342acd22c13
  2. 1mo ago First seen · 331 lines · 7,130 tokens per session scan A 3281b4deffac

Subscribe to this mod's changes

han CLAUDE.md is an instructions file published in the GitHub repository testdouble/han (304 stars, last pushed today), licensed MIT. It adds 7,884 tokens to every session, about $0.0315 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 2026-08-30.

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