core

core is a skill for Claude Code from oyi77/1ai-skills. It costs 46 tokens per session (4,913 once invoked), scanned A, original, MIT.

A central knowledge base for storing company information, project documents, and context that agents can recall across sessions.

In plain words
What is it for?
It helps document products, clients, team members, procedures, decisions, and project history.
Why use it?
It reduces repeated explanations and makes organizational knowledge easier to find and reuse.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the 1ai-skills plugin — 187 skills, 4 commands shipped together

Good fit It helps document products, clients, team members, procedures, decisions, and project history.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oyi77/1ai-skills/core
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 oyi77/1ai-skills --skill core
Clone the repo
git clone --depth 1 https://github.com/oyi77/1ai-skills

Made for: Claude Code.

Or install 1ai-skills, the plugin that ships this one along with the rest of its 187 skills, 4 commands.

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 core

README.md
[![agentmods](https://agentmods.dev/badge/skills/oyi77/1ai-skills/core/github.svg)](https://agentmods.dev/skills/oyi77/1ai-skills/core)
Your own site
<a href="https://agentmods.dev/skills/oyi77/1ai-skills/core"><img src="https://agentmods.dev/badge/skills/oyi77/1ai-skills/core/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 core

Your own site · 80×15
<a href="https://agentmods.dev/skills/oyi77/1ai-skills/core"><img src="https://agentmods.dev/badge/skills/oyi77/1ai-skills/core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,913 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 138
    Code scans file system directories looking for sensitive files. This could be reconnaissance for credential theft.
    Fix: Remove unnecessary filesystem scanning. If file access is needed, use explicit, scoped paths. Avoid reading ~/.ssh, ~/.aws, or credential directories.
  • medium Data Exfiltration · line 139
    Code scans file system directories looking for sensitive files. This could be reconnaissance for credential theft.
    Fix: Remove unnecessary filesystem scanning. If file access is needed, use explicit, scoped paths. Avoid reading ~/.ssh, ~/.aws, or credential directories.
  • medium Data Exfiltration · line 140
    Code scans file system directories looking for sensitive files. This could be reconnaissance for credential theft.
    Fix: Remove unnecessary filesystem scanning. If file access is needed, use explicit, scoped paths. Avoid reading ~/.ssh, ~/.aws, or credential directories.
How audits are shown
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 $0.00046 $0.04913
Opus 5 $0.00023 $0.02457
Sonnet 5 $0.00009 $0.00983
Haiku 4.5 $0.00005 $0.00491

Measured 6d ago against content hash 748d3b8ade60, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

core scanned grade A with 1 finding 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 6d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

query = subprocess.run(
core/core/SKILL.md · 601 lines

How it starts

The opening of the file, as written. The whole thing — 601 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Core Knowledge Base Hub — Company Memory & Recall

When Not to Use

  • Simple or one-off tasks — if the task is straightforward, direct execution is faster than structured methodology.
  • Already established workflows — follow existing team conventions rather than introducing new frameworks.
  • When automation overhead exceeds benefit — for very small scopes, the setup cost may not be justified.

Dependencies

  • Python 3.8+ or Node.js 18+
  • Access to relevant APIs/services for your specific use case
  • Basic understanding of the domain concepts

Commands

# Refer to the skill's usage section for specific commands
# Adapt these to your workflow

Money-Making Overview

A well-structured knowledge base is the single highest-leverage investment for an autonomous agent ecosystem. Every hour spent organizing knowledge saves 10 hours of re-discovery and context-switching. Direct revenue impact:

Capability ROI Impact Timeline
Session-start context loading Eliminates 10-15 min of re-orientation per session Day 1
Company knowledge recall Instant access to strategies, playbooks, finance data Day 1
PARA-structured memory Find any document in < 30 seconds vs 10+ minutes Day 2
Entity-relationship graph Cross-reference decisions, clients, projects instantly Week 1
Multi-agent shared memory All agents operate from the same truth source Week 1
Auto-decay and archival Memory stays lean — no information rot Ongoing

Total addressable value: A mature knowledge base turns a 1-person operation into a 10-person operation by eliminating context loss. Every lost context costs $50-200 in re-discovery time. With 5+ sessions per day, that's $250-1,000/day saved.

Combined Capabilities

Capability kb company-kb Combined Power
PARA file structure Core Unified memory hierarchy
Company-specific docs Core Products, team, procedures, history
Session brain / daily notes Core Session-to-session context continuity
Multi-agent read/write Core Core Shared truth source for all agents
Semantic search (embedding) Vector-aware recall across all knowledge
YAML atomic facts Core Machine-readable structured knowledge
Natural-language retrieval Core "What did we decide about pricing?"
Knowledge lifecycle (decay) Core Auto-archive stale entries
Cross-referencing entities Core Link decisions to projects, people, dates
Agent accountability records Core Track who updated what and when

Read the full file on GitHub · 601 lines

Files

What ships with it

3 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. 6d ago First seen · 601 lines · 46 tokens per session scan A 748d3b8ade60

Subscribe to this mod's changes

core is a skill published in the GitHub repository oyi77/1ai-skills (12 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 4,913 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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