What is nyann:optimize-claudemd?

A command and skill for reviewing how a CLAUDE.md instruction file is used and adjusting its contents based on recorded usage; CLAUDE.md stores guidance for Claude Code.

Use it to inspect usage data, preview proposed changes, and optimize sections within the file's designated markers.

It identifies documentation that is unused, too long, or missing frequently needed commands.

nyann:optimize-claudemd — Command for Claude Code by thettwe/nyann

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/thettwe/nyann

Made for: Claude Code.

Or install nyann, the plugin that ships this one along with the rest of its 41 skills, 41 commands, 3 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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/thettwe/nyann/optimize-claudemd/github.svg)](https://agentmods.dev/commands/thettwe/nyann/optimize-claudemd)

Your own site

<a href="https://agentmods.dev/commands/thettwe/nyann/optimize-claudemd"><img src="https://agentmods.dev/badge/commands/thettwe/nyann/optimize-claudemd/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/thettwe/nyann/optimize-claudemd"><img src="https://agentmods.dev/badge/commands/thettwe/nyann/optimize-claudemd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 365 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.

Model	Per session	Once invoked
Fable 5.1	$0.00045	$0.00365
Opus 5.5	$0.00018	$0.00146
Sonnet 5.5	$0.00009	$0.00073
Haiku 4.5	$0.00005	$0.00036

Measured 1mo ago against content hash b770cc546bc6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nyann:optimize-claudemd 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.

commands/optimize-claudemd.md · 39 lines

What it actually says

Plugin root: This is a Claude Code plugin, NOT a CLI tool. Do NOT search via which, npm list, pip list, or brew list. This file is at <plugin_root>/commands/. All scripts: <plugin_root>/bin/. Read the matching skills/*/SKILL.md for the full flow.