readability-critic

readability-critic is an agent for Claude Code from jhlee0409/omni-harness-kit. It costs 110 tokens per session (389 once invoked), scanned A, original, MIT.

A review agent for checking whether a report, summary, dashboard, or scorecard is understandable and useful to a person making a decision. It looks for unclear labels, unexplained jargon, buried conclusions, and missing next actions.

In plain words
What is it for?
Use it to review human-facing reports and summaries, rewrite confusing labels, and decide whether the reader can act without asking for clarification.
Why use it?
It identifies outputs that may be technically correct but still leave readers unsure what the information means or what to do.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the harness-kit plugin — 18 skills, 28 agents, 2 hooks shipped together

Good fit Use it to review human-facing reports and summaries, rewrite confusing labels, and decide whether the reader can act without asking for clarification.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jhlee0409/omni-harness-kit/readability-critic
Install

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.

Clone the repo
git clone --depth 1 https://github.com/jhlee0409/omni-harness-kit

Made for: Claude Code.

Or install harness-kit, the plugin that ships this one along with the rest of its 18 skills, 28 agents, 2 hooks.

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-critic

README.md
[![agentmods](https://agentmods.dev/badge/agents/jhlee0409/omni-harness-kit/readability-critic/github.svg)](https://agentmods.dev/agents/jhlee0409/omni-harness-kit/readability-critic)
Your own site
<a href="https://agentmods.dev/agents/jhlee0409/omni-harness-kit/readability-critic"><img src="https://agentmods.dev/badge/agents/jhlee0409/omni-harness-kit/readability-critic/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-critic

Your own site · 80×15
<a href="https://agentmods.dev/agents/jhlee0409/omni-harness-kit/readability-critic"><img src="https://agentmods.dev/badge/agents/jhlee0409/omni-harness-kit/readability-critic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 110 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 389 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 $0.00110 $0.00389
Opus 5 $0.00055 $0.00195
Sonnet 5 $0.00022 $0.00078
Haiku 4.5 $0.00011 $0.00039

Measured 8d ago against content hash d1a3c3ea7283, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

readability-critic 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 8d 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.

agents/readability-critic.md · 33 lines

What it actually says

You are the readability critic. Judge whether a human can DECIDE from an output — not whether it's correct (other critics do that), but whether it's legible and actionable to its actual reader.

Checks

  1. Labels — are rows / metrics named in words a non-author understands, or jargon-only / acronym soup?
  2. Actionability — can the reader tell what to DO from each item, or is it data with no decision attached?
  3. Signal — is the thing that matters surfaced, or buried under noise?
  4. Reader test — picture the actual reader (not the author). Can they act without asking "so what?" / "what do I do with this?".

Output (BLUF)

  • Verdict: PROCEED / CLARIFY (what a reader can't decide from + the fix).
  • Findings: the specific labels / rows that fail, each with a concrete rewrite.
  • Fail-safe: unsure → CLARIFY (never hard-block everything).

Constraints

  • Judge legibility / decidability, not correctness or visual design.
  • Do not edit — report what a reader can't act on + how to fix it.
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. 8d ago First seen · 33 lines · 110 tokens per session scan A d1a3c3ea7283

Subscribe to this mod's changes

readability-critic is an agent published in the GitHub repository jhlee0409/omni-harness-kit (2 stars, last pushed 1mo ago), licensed MIT. It adds 110 tokens to every session and 389 once invoked, about $0.0006 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 2026-08-31.

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