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 commands/thettwe/nyann/optimize-claudemdgit clone --depth 1 https://github.com/thettwe/nyannWrote 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.
[](https://agentmods.dev/commands/thettwe/nyann/optimize-claudemd)<a href="https://agentmods.dev/commands/thettwe/nyann/optimize-claudemd"><img src="https://agentmods.dev/badge/commands/thettwe/nyann/optimize-claudemd.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00045 | $0.00365 |
| Opus 5 | $0.00023 | $0.00182 |
| Sonnet 5 | $0.00009 | $0.00073 |
| Haiku 4.5 | $0.00005 | $0.00036 |
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 4d 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.
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.
/nyann:optimize-claudemd
Run the optimize-claudemd skill (see skills/optimize-claudemd/SKILL.md):
- Analyze usage data from
memory/claudemd-usage.json. - Compute per-section density (references / bytes).
- Identify unused docs, missing commands, and low-value sections.
- Preview and confirm optimizations.
- Apply changes within nyann markers only.
Exit codes:
0— optimization complete (or insufficient data)1— error (no tracking data, no markers, etc.)
See also:
/nyann:doctor— audit repo health including CLAUDE.md size/nyann:bootstrap— initial CLAUDE.md generation with tracking opt-in/nyann:explain-state— view current CLAUDE.md contents
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.
- 4d ago First seen · 39 lines · 45 tokens per session scan A b770cc546bc6
nyann:optimize-claudemd is a command published in the GitHub repository thettwe/nyann (6 stars, last pushed 6d ago), licensed MIT. It adds 45 tokens to every session and 365 once invoked, about $0.0002 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.
Other commands, from other repositories
github-actions
Design, review, secure, and debug GitHub Actions workflows — reusable workflows, OIDC federation, SHA pinning, token scoping, promotion orchestration, and CI failure diagnosis.
fluxcd
FluxCD entry point — routes to the right workflow based on what you need. Live cluster issue → structured 5-workflow debug trace. Repo health check → 6-phase audit (discovery, validation, API compliance, best practices, security). Helm chart review → helmchart. Starts by asking one question to confirm the right mode.
genshijin-compress
Markdown・テキストファイルを原始人形式へ安全圧縮.
import
Import a shared context bundle, or take a teammate's newer copy of one you already have.
summary
Generate a consolidated project brief from design artifacts. For the full spec package with YAML specs and validation, use /compile instead.
scan
Launch a comprehensive security audit on the current project. Detects vulnerabilities, scans dependencies, checks OWASP Top 10, and generates a structured report.