readability-guidance

readability-guidance is a skill for Claude Code from testdouble/han. It costs 183 tokens per session (1,412 once invoked), scanned A, original, MIT.

A writing aid that loads a shared standard for clear, human-readable output before another skill drafts text.

In plain words
What is it for?
Use it when a skill needs guidance for drafting and checking prose against a central project standard.
Why use it?
It keeps different writing tasks aligned with the same readability rules and writing voice.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the han-communication plugin — 3 skills, 1 agent shipped together

Good fit Use it when a skill needs guidance for drafting and checking prose against a central project standard.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add testdouble/han
Claude Code
/plugin install han-communication

Made for: Claude Code.

Or install han-communication, the plugin that ships this one along with the rest of its 3 skills, 1 agent.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for readability-guidance

README.md
[![agentmods](https://agentmods.dev/badge/skills/testdouble/han/readability-guidance/github.svg)](https://agentmods.dev/skills/testdouble/han/readability-guidance)
Your own site
<a href="https://agentmods.dev/skills/testdouble/han/readability-guidance"><img src="https://agentmods.dev/badge/skills/testdouble/han/readability-guidance/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for readability-guidance

Your own site · 80×15
<a href="https://agentmods.dev/skills/testdouble/han/readability-guidance"><img src="https://agentmods.dev/badge/skills/testdouble/han/readability-guidance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 183 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,412 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00183 $0.01412
Opus 5.5 $0.00073 $0.00565
Sonnet 5.5 $0.00037 $0.00282
Haiku 4.5 $0.00018 $0.00141

Measured 1mo ago against content hash 0925d3d72e7a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

readability-guidance 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.

han-communication/skills/readability-guidance/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Context

  • personal config directory: !bash "${CLAUDE_PLUGIN_ROOT}/scripts/han-config-dir.sh" 2>/dev/null || echo "$HOME/.claude"
  • project .han/config.md: !cat .han/config.md 2>/dev/null || echo ""

As your first action, use the Read tool on .han/config.md inside the personal config directory path above. A read that returns no file is no personal configuration: continue silently. When that file or the project .han/config.md probe supplies content, apply it per config-rule.md, which governs precedence between the two files, relative-path resolution, and what to do with a file that reads but cannot be used.

Readability Guidance

You have invoked readability-guidance to source the shared readability standard before you draft prose. This skill surfaces the standard into your own context and hands control back. It is a means to writing your deliverable, not the deliverable itself: apply what it surfaces while you draft and self-check, then RETURN to the workflow that called you and finish it.

This skill is inline — it runs in your context, not an isolated one, so the standard it surfaces stays available to you after it returns. Do not treat anything here as a stopping point or a final answer.

Which outputs this standard covers

A structured specification, plan, phased build, work-item list, coding standard, or test plan is reader-facing whenever a human reads it end to end — to approve it, follow it, or build from it — even when downstream skills also consume it. Only an artifact consumed purely as a pipeline input, with no human reading it end to end, falls outside the standard. If a human reads your deliverable end to end, apply the standard to it.

Step 1: Resolve the writing-voice source, then read the standard

First resolve which writing-voice profile this run uses:

  • When either .han/config.md probe supplied a writing-voice value, resolve it and check that the file exists. A relative value resolves against the folder holding the file that declared it: the working directory for the project file, and the personal config directory the probe reported for the personal file. A full path is used as it stands, and a leading ~ expands to the home directory. When both files supply a value, the project file's wins.
    • When the file exists, it is the writing-voice profile for this run, used in place of the built-in profile.
    • When the file does not exist, warn the user that the configured writing-voice file was not found, naming which of the two configuration files declared it, and ask whether to use the built-in Han voice or skip the writing voice entirely for this run. Honor the answer: fall back to the built-in profile, or proceed with no voice profile at all.
  • When neither probe supplied a writing-voice value, the built-in profile at ${CLAUDE_PLUGIN_ROOT}/references/writing-voice.md applies.

Read the full file on GitHub · 91 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 First seen · 91 lines · 183 tokens per session scan A 0925d3d72e7a

Subscribe to this mod's changes

readability-guidance is a skill published in the GitHub repository testdouble/han (304 stars, last pushed today), licensed MIT. It adds 183 tokens to every session and 1,412 once invoked, about $0.0007 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.

Related

Other skills, from other repositories

gemini

Cross-model second opinion from Google Gemini — a different AI reviewing the same changes, with deep Google ecosystem knowledge. Three modes: review (pass/fail gate for Google Ads campaigns, SEO metadata, or code), challenge (adversarial stress-test that tries to break your changes), and consult (open Q&A with Gemini…

nowork-studio/notfair-plugin · 184 tokens

audit

Project health audit and health check — architecture, performance, tests, dependencies, code quality. Use when assessing overall project health, before releases, or after refactors.

oliver-kriska/claude-elixir-phoenix · 35 tokens

boundaries

Analyze Phoenix context boundaries and module coupling via mix xref. Use when checking cross-context calls, validating dependencies, before splitting modules, or reviewing architecture.

oliver-kriska/claude-elixir-phoenix · 33 tokens

triage

Triage review findings interactively — approve, skip, or prioritize each issue. Use after /phx:review to filter findings before fixing.

oliver-kriska/claude-elixir-phoenix · 32 tokens

pr-threads-address

Address PR review feedback by systematically working through every unresolved PR review thread on the current branch's PR - analyze each comment, make the requested code changes (with tests where useful), commit, and optionally reply and resolve.

posit-dev/skills · 48 tokens

security-architecture-review

Reviews a design or change for security before it ships — authentication and authorization, data handling, secrets, dependencies, and the secure-development practices around it. Use this to review an architecture or pull request for security, set secure coding standards, choose or tune SAST and DAST tooling, assess a…

cbrock84/headcount · 78 tokens