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.
npx agentmods add instructions/testdouble/han/claude-mdgit clone --depth 1 https://github.com/testdouble/hanWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.07130 | $0.07130 |
| Opus 5 | $0.03565 | $0.03565 |
| Sonnet 5 | $0.01426 | $0.01426 |
| Haiku 4.5 | $0.00713 | $0.00713 |
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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 331 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 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), 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).
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.
- yesterday First seen · 331 lines · 7,130 tokens per session scan A 3281b4deffac
han CLAUDE.md is an instructions file published in the GitHub repository testdouble/han (247 stars, last pushed 3d ago), licensed MIT. It adds 7,130 tokens to every session, about $0.0357 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.
Other instructions, from other repositories
Skill_Seekers CLAUDE.md
Instructions for yusufkaraaslan/Skill_Seekers, covering claude.md, project overview, essential commands, required before running tests or cli (src/ layout) and run all tests (never skip - all must pass before commits).
docs-to-pdf CLAUDE.md
Instructions for jean-humann/docs-to-pdf, covering claude development guide for docs-to-pdf, project overview, development environment setup, using mise (recommended) and install mise (if not already installed).
core copilot-instructions.md
Instructions for asdecided/core: These decisions are already accepted. Do not re-open or contradict them; ask the AsDecided MCP tools (getartifact, searchartifacts) for the full text before proposing a change that touches one.
backend.ai AGENTS.md
AGENTS.md instructions for lablup/backend.ai, covering ai coding agent guidelines, document structure (agents.md / knowledge.md), writing style, document index and absolute rules (global).
alcove AGENTS.md
Instructions for epicsagas/alcove, covering claude.md, repository purpose, actual location, structure and karpathy 3-layer architecture.
slideops CLAUDE.md
Instructions for glukicov/slideops, covering claude.md, what this repository is, commands, the demo deck's citations must still match this repo and the citation mechanism (the core idea).