context-rot-cleanup

context-rot-cleanup is a skill for Claude Code from NickGuAI/Herd. It costs 34 tokens per session (1,285 once invoked), scanned A, original, AGPL-3.0.

A workspace-cleanup guide for finding durable context, such as memory and rule files, and removing stale or low-value information.

In plain words
What is it for?
Use it to review workspace guidance and memory files, remove obsolete entries, and keep the information available to the agent useful.
Why use it?
It reduces context rot: the gradual buildup of outdated or distracting information that can make an agent's work less reliable.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to review workspace guidance and memory files, remove obsolete entries, and keep the information available to the agent useful.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nickguai/herd/context-rot-cleanup
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 NickGuAI/Herd --skill context-rot-cleanup
Clone the repo
git clone --depth 1 https://github.com/NickGuAI/Herd

Made for: Claude Code.

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 context-rot-cleanup

README.md
[![agentmods](https://agentmods.dev/badge/skills/nickguai/herd/context-rot-cleanup.svg)](https://agentmods.dev/skills/nickguai/herd/context-rot-cleanup)
Your own site
<a href="https://agentmods.dev/skills/nickguai/herd/context-rot-cleanup"><img src="https://agentmods.dev/badge/skills/nickguai/herd/context-rot-cleanup.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,285 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 unknown 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 $0.00034 $0.01285
Opus 5 $0.00017 $0.00642
Sonnet 5 $0.00007 $0.00257
Haiku 4.5 $0.00003 $0.00128

Measured 8d ago against content hash 89e7bbaed739, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

context-rot-cleanup 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.

agent-skills/commander-ops/context-rot-cleanup/SKILL.md · 124 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 124 lines · 34 tokens per session scan A 89e7bbaed739

Subscribe to this mod's changes

context-rot-cleanup is a skill published in the GitHub repository NickGuAI/Herd (17 stars, last pushed 27d ago), licensed AGPL-3.0. It adds 34 tokens to every session and 1,285 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 2026-08-30.

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