Context Hygiene & Session Management

Context Hygiene & Session Management is a skill for Claude Code, Codex from Kingdaddy007/my-os. It costs 40 tokens per session (700 once invoked), scanned A, original, no licence file.

A session-management skill that tracks conversation complexity and context size. It helps preserve important state when work may need to continue in another chat session.

In plain words
What is it for?
Monitoring context growth, preparing session state, and advising when work should be split across sessions.
Why use it?
It reduces the risk of losing useful decisions or instructions when a long coding task becomes too large for one session.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Monitoring context growth, preparing session state, and advising when work should be split across sessions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kingdaddy007/my-os/context-hygiene
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 Kingdaddy007/my-os --skill context-hygiene
Clone the repo
git clone --depth 1 https://github.com/Kingdaddy007/my-os

Made for: Claude Code, Codex.

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 Hygiene & Session Management

README.md
[![agentmods](https://agentmods.dev/badge/skills/kingdaddy007/my-os/context-hygiene.svg)](https://agentmods.dev/skills/kingdaddy007/my-os/context-hygiene)
Your own site
<a href="https://agentmods.dev/skills/kingdaddy007/my-os/context-hygiene"><img src="https://agentmods.dev/badge/skills/kingdaddy007/my-os/context-hygiene.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 700 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 $0.00040 $0.00700
Opus 5 $0.00020 $0.00350
Sonnet 5 $0.00008 $0.00140
Haiku 4.5 $0.00004 $0.00070

Measured 8d ago against content hash b5984b88a12d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

Context Hygiene & Session Management 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.

global/skills/context-hygiene/SKILL.md · 66 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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 · 66 lines · 40 tokens per session scan A b5984b88a12d

Subscribe to this mod's changes

Context Hygiene & Session Management is a skill published in the GitHub repository Kingdaddy007/my-os (5 stars, last pushed 3mo ago), with no licence file. It adds 40 tokens to every session and 700 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.