audit-noise

audit-noise is a skill for Claude Code from melodic-software/claude-code-plugins. It costs 112 tokens per session (6,295 once invoked), scanned D, original, MIT.

A read-only checker that finds common sources of unnecessary noise in Markdown documentation.

In plain words
What is it for?
Use it to inspect rules, skill files, instruction documents, READMEs, and other tracked Markdown files.
Why use it?
It helps identify historical notes, stale references, planning leftovers, and other text that makes documents harder to maintain or read.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; mentions subagents; mentions AGENTS.md.

Part of the docs-hygiene plugin — 9 skills, 1 agent shipped together

Good fit Use it to inspect rules, skill files, instruction documents, READMEs, and other tracked Markdown files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/melodic-software/claude-code-plugins/audit-noise
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.

Any agent
npx skills add melodic-software/claude-code-plugins --skill audit-noise
Clone the repo
git clone --depth 1 https://github.com/melodic-software/claude-code-plugins

Made for: Claude Code.

Or install docs-hygiene, the plugin that ships this one along with the rest of its 9 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 audit-noise

README.md
[![agentmods](https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/audit-noise/github.svg)](https://agentmods.dev/skills/melodic-software/claude-code-plugins/audit-noise)
Your own site
<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/audit-noise"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/audit-noise/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 audit-noise

Your own site · 80×15
<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/audit-noise"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/audit-noise.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 112 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,295 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 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 $0.00112 $0.06295
Opus 5.5 $0.00045 $0.02518
Sonnet 5.5 $0.00022 $0.01259
Haiku 4.5 $0.00011 $0.00630

Measured 8d ago against content hash 66c4d2ae2f23, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade D, and why

audit-noise scanned grade D with 2 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.

The scan reads SKILL.md. This mod also ships 7 executable files (scripts/detect.sh, scripts/detect.test.sh, scripts/emit-findings.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

- **Opt-out markers respected.** A well-formed HTML comment line `<!-- markdown-discipline-ignore -->` covers the next paragraph, through the next blank line or heading. `<!-- markdown-discipline-ignore-line -->` covers

Recursive force deletemediumDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

`token`, `password`, `api key`, `force-push`, `--force`, `rm -rf`, `destructive`, `irreversible`,

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

plugins/docs-hygiene/skills/audit-noise/SKILL.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository context. Gather first

Collect these with individual Bash calls, one command per call, never combined into a single invocation:

  • Current branch, git branch --show-current
  • Uncommitted .md files (empty = none matched or the probe returned nothing), git status --porcelain | grep -E '\.md"?$' | head -10

The pipe is the bound and belongs in the command. A read-time cap ("read only the first 10 entries") bounds nothing: the Bash tool returns the command's complete output into context before there is anything to decide about.

Treat a failure (not a repository, git unavailable) as an unknown value and carry on. Keep these as separate body Bash calls rather than pre-compute lines: the harness runs a skill's whole pre-compute block as one shell invocation, and a worktree-isolated session refuses a compound command that contains git. The dated record for that composition claim is the source-control plugin's worktree/reference/gather-block.md, "The pre-compute block runs as one shell invocation".

Pre-computed context

Noise findings (sample): !${CLAUDE_SKILL_DIR}/scripts/detect.sh 2>/dev/null | grep -E '^(status:|Summary total:|Finding shape:)' | head -20 || echo "none"

Purpose

Tracked markdown accumulates nine NOISE shapes distinct from FLAVOR, owned by the sibling /docs-hygiene:compress. The surfaces include rules, skill bodies, instruction files (CLAUDE.md, AGENTS.md), docs/, and READMEs. Each shape has to be kept current as the repository changes, and every reader pays to read past it in every file that carries it. This skill is a read-only classifier: it surfaces candidates with treatment guidance; the author hand-applies every edit.

Three of the nine, plan-reference, conversational-antecedent, and ticket-pr-residue, carry the same names the code-side sibling /code-tidying:audit-comment-residue uses, because they are the same authoring failure landing in a different file type. Ownership splits by file type, not by shape: markdown is this skill's, everything else is the sibling's, and neither scans the other's files. The patterns are not shared code. The sibling classifies only the extracted comment portion of a line; this skill classifies whole prose, where the same words carry meaning far more often, so its patterns are tightened accordingly and several of the sibling's cues are deliberately not carried over.

Read the full file on GitHub · 241 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. 8d ago Changed 66c4d2ae2f23
  2. 12d ago Changed 5417e25b885a
  3. 18d ago Changed · -1 lines cc663dc2cb80
  4. 21d ago Changed · +3 lines · -82 tokens per session 442ea573b751
  5. 22d ago Changed 83686030089b
  6. 27d ago Changed e1494d2d8bf0
  7. 1mo ago Changed ca69b75d6ec0
  8. 1mo ago Changed · -30 tokens per session 02cd3b4ea5e1
  9. 1mo ago Changed 4efe924010d0
  10. 1mo ago First seen · 239 lines · 224 tokens per session scan D e1fcf35d7ae1

Subscribe to this mod's changes

audit-noise is a skill published in the GitHub repository melodic-software/claude-code-plugins (26 stars, last pushed today), licensed MIT. It adds 112 tokens to every session and 6,295 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it D with 2 findings (hidden instructions, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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