Borrowing it
Nothing to install: this file belongs to zotoio/CRUX-Compress. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/zotoio/CRUX-Compress/main/.cursor/skills/crux-skill-memory-crud/SKILL.mdgit clone --depth 1 https://github.com/zotoio/CRUX-CompressWrote 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/skills/zotoio/crux-compress/crux-skill-memory-crud)<a href="https://agentmods.dev/skills/zotoio/crux-compress/crux-skill-memory-crud"><img src="https://agentmods.dev/badge/skills/zotoio/crux-compress/crux-skill-memory-crud/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.
<a href="https://agentmods.dev/skills/zotoio/crux-compress/crux-skill-memory-crud"><img src="https://agentmods.dev/badge/skills/zotoio/crux-compress/crux-skill-memory-crud.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 5.1 | $0.00045 | $0.02056 |
| Opus 5.5 | $0.00018 | $0.00822 |
| Sonnet 5.5 | $0.00009 | $0.00411 |
| Haiku 4.5 | $0.00005 | $0.00206 |
Grade A, and why
crux-skill-memory-crud 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 198 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CRUX Memory CRUD
Provides create, read, update, delete, and validate operations for CRUX memory files stored under memories/.
When to Use
Use this skill whenever you need to:
- Create a new memory file from an extracted insight
- Read and parse an existing memory's frontmatter and body
- Update a memory's metadata or content (e.g. type promotion, strength change)
- Delete a memory and its reference tracker
- Validate a memory file against the required schema
Config keys and defaults: see
.cursor/skills/_memory-shared.md#config-referenceand.crux/crux-memories.json(authoritative).
Memory Frontmatter Schema
Every memory file must have YAML frontmatter with these fields:
Required Fields
| Field | Type | Rules |
|---|---|---|
id |
string | 7-character hex hash, generated once at creation from sha256(title)[:7]. Immutable — never changes even if the title is edited. Used as the stable short identifier for display and selection. |
title |
string | Descriptive title conveying the key insight |
description |
string | Self-contained summary — enough to act on without reading the body |
type |
enum | One of: core, redflag, goal, learning, idea, archived |
strength |
integer | Starts at 1 for new memories; incremented on reinforcement |
created |
date | ISO date (YYYY-MM-DD); set once at creation, never modified |
modified |
date | ISO date (YYYY-MM-DD); updated on every write |
source |
string | Slug of the originating spec or session (e.g. 20260403-component-library) |
tags |
list | Array of lowercase tag strings for categorization |
Optional Fields
| Field | Type | Rules |
|---|---|---|
promoted_from |
string | Previous type before a type transition; set automatically on promotion/demotion |
consolidated_from |
list | List of original memory id values when this memory was created by merging multiple memories during REM sleep consolidation. Set once, never modified. |
consolidation_topic |
string | Shared slug identifying the topic across multi-volume consolidated memories (e.g. plugin-architecture). All volumes for the same topic share this value. Set during consolidation when splitting is needed. |
consolidation_part |
integer | Volume number within a multi-volume consolidated topic (1-indexed). Only present when consolidation_topic is set and the topic spans multiple files. |
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.
- 1mo ago Changed · -10 lines 63f7f238ba1d
- 2mo ago First seen · 208 lines · 45 tokens per session scan A 46f5ba203f9a
crux-skill-memory-crud is a skill published in the GitHub repository zotoio/CRUX-Compress (8 stars, last pushed 14d ago), licensed MIT. It adds 45 tokens to every session and 2,056 once invoked, about $0.0002 per session on Opus 5.5. 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.
crux-skill-memory-crud compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| crux-skill-memory-crudzotoio/CRUX-Compress | Skill | 8 | 14d ago | MIT | A | 45 | Cursor |
| kiro-steering-customgotalab/cc-sdd | Skill | 3.8k | 15d ago | MIT | A | 14 | Claude Code, Codex |
| [object Object]team-reflect/reflect-open | Skill | 1.6k | yesterday | MIT | A | 51 | Claude Code, Codex |
| identity-snapshotdavekilleen/Dex | Skill | 512 | 8d ago | MIT | A | 74 | Claude Code, Codex |
| daily-journalhuytieu/COG-second-brain | Skill | 1.3k | 14d ago | MIT | A | 107 | Claude Code |
| simplemem-skillaiming-lab/SimpleMem | Skill | 3.9k | 3mo ago | MIT | A | 58 | Claude Code, Codex |
| alive:session-historyalivecontext/alive | Skill | 132 | 1mo ago | MIT | A | 76 | Claude Code |