index-update

index-update is a skill for Claude Code, Codex from AI4CreativityLab/Index.skill. It costs 41 tokens per session (4,349 once invoked), scanned A, original, MIT.

A knowledge-management workflow that organizes read notes and chat records into a layered personal memory system. It sorts information into indexes, topic files, and an archive.

In plain words
What is it for?
It is for processing notes marked as read, extracting useful information from chats, updating persona details, and archiving finished records.
Why use it?
It reduces the need to manually classify notes and keeps stored knowledge easier to navigate over time.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/ai4creativitylab/index.skill/index-update
Any agent
npx skills add AI4CreativityLab/Index.skill --skill index-update
Clone the repo
git clone --depth 1 https://github.com/AI4CreativityLab/Index.skill

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 index-update

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai4creativitylab/index.skill/index-update.svg)](https://agentmods.dev/skills/ai4creativitylab/index.skill/index-update)
Your own site
<a href="https://agentmods.dev/skills/ai4creativitylab/index.skill/index-update"><img src="https://agentmods.dev/badge/skills/ai4creativitylab/index.skill/index-update.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,349 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00041 $0.04349
Opus 5 $0.00020 $0.02174
Sonnet 5 $0.00008 $0.00870
Haiku 4.5 $0.00004 $0.00435

Measured 4d ago against content hash fd1a473d5452, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

index-update 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.

.claude/skills/index-update/SKILL.md · 420 lines

How it starts

The opening of the file, as written. The whole thing — 420 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are IndexUpdate, the Knowledge Librarian.

Objective

Scan _new/ for notes marked as "已读", extract knowledge from each, organize it into the hierarchical memory system in memory/, and archive the note to deep/. Then process chat logs in _chat/: apply any persona updates to persona.md, extract new knowledge from user-provided information, and archive chat files to deep/.

Usage: /index-update

Important Paths

VAULT_PATH     = ./IndexVault
NEW_DIR        = ./IndexVault/_new
DEEP_DIR       = ./IndexVault/deep
MEMORY_DIR     = ./IndexVault/memory
CHAT_DIR       = ./IndexVault/_chat
PERSONA_FILE   = ./IndexVault/persona.md
RESOURCES_DIR  = ./skills/index-update/resources

Memory System Architecture

The memory system uses a layered index design — never load all knowledge at once. Navigate top-down through indexes:

memory/
├── memory-index.md                 # Level 0: Route to knowledge category
├── 事实性记忆/                      # Factual: "是什么"
│   ├── _local_index.md         # Level 1: Route to keyword file
│   └── {KEY_WORD}.md               # Level 2: Actual knowledge entries
├── 程序性记忆/                      # Procedural: "怎么做"
│   ├── _local_index.md
│   └── {KEY_WORD}.md
├── 条件性记忆/                      # Conditional: "何时/为何用"
│   ├── _local_index.md
│   └── {KEY_WORD}.md
└── 元认知记忆/                      # Metacognitive: "怎么学/怎么错"
    ├── _local_index.md
    └── {KEY_WORD}.md

Four Knowledge Categories

Category What it stores Examples
事实性记忆 (Factual) "是什么" — definitions, facts, formulas, architectures, benchmarks, taxonomies Transformer的定义, BLEU分数含义, ResNet架构
程序性记忆 (Procedural) "怎么做" — methods, algorithms, workflows, implementation steps, code patterns LoRA微调流程, Docker部署步骤, Git rebase操作
条件性记忆 (Conditional) "何时/为何用" — when to use which method, trade-offs, comparisons, selection criteria, failure modes 何时用Adam vs SGD, CNN vs ViT的选择, 分布式训练的适用场景
元认知记忆 (Metacognitive) "怎么学/怎么错" — learning strategies, common pitfalls, mental models, personal reflections, anything else 论文阅读方法论, 常见调参误区, 我的研究盲区

Read the full file on GitHub · 420 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 420 lines · 41 tokens per session scan A fd1a473d5452

Subscribe to this mod's changes

index-update is a skill published in the GitHub repository AI4CreativityLab/Index.skill (77 stars, last pushed 2mo ago), licensed MIT. It adds 41 tokens to every session and 4,349 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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