J Space

Q: What is a Claude Code skill and how does the J Space skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. J Space is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: general-misc · Last updated: 2026-07-11

Build and use an external, persistent "mental workspace" (a J-space) for a coding agent, 100% locally with no cloud or API keys. Analyze a topic (via the Perplexity MCP or web search) or a codebase (static scan) into a weighted knowledge graph, compile it into a matrix of concepts with local embeddings (all-MiniLM-L6-v2), and derive a thought-sequence keyword ordering. Then load that workspace into active memory, query it with spreading activation to see which concepts light up, edit it, checkpoint it, and even "hypnotize" the agent - pin concepts, install post-hypnotic triggers, and write an always-on induction rule so the workspace primes the agent every session. Use when the user asks to build a mental workspace / knowledge graph / concept map for a topic or codebase, construct or load a J-space, think in more advanced terms about a subject, get thought-sequence keywords, prime/hypnotize the agent toward a set of concepts, or persist and checkpoint a conceptual workspace.

Security BStatic scan: minor findingsHow grading works ›

From the source SKILL.md

Give yourself (the agent) an external, inspectable mental workspace for a topic or codebase, modeled on the "J-space" from [Anthropic's global-workspace research](https://www.anthropic.com/research/global-workspace): a small set of word-linked concepts that a model reasons with. This skill turns a subject into a weighted concept graph, compiles it into a matrix with local embeddings, and lets you load / query / edit / checkpoint / hypnotize it so useful vocabulary stays "lit up" and consistent across turns and sessions.

flowchart LR
  Topic["topic research<br/>(Perplexity / web, agent-driven)"] --> Graph["graph.json<br/>(nodes + weighted edges)"]
  Code["scan codebase<br/>(jspace.py scan)"] --> Graph
  Graph --> Build["build<br/>embeddings + similarity edges"]
  Build --> Matrix["matrix.npz + digest.md"]
  Matrix --> Load["load → active memory"]
  Matrix --> Query["query → spreading activation"]
…

What this skill does

J Space is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/j-space/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks to build a mental workspace / knowledge graph / concept map for a topic or codebase, construct or load a J-space, think in more advanced terms about a subject, get thought-sequence keywords, prime/hypnotize the agent toward a set of concepts, or persist and checkpoint a conceptual workspace.

Who uses this skill

The J Space Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 196,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/j-space
curl -L https://claudskills.com/skills/j-space/SKILL.md \
  -o ~/.claude/skills/j-space/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/j-space/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/j-space/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\j-space\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the J Space Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/j-space/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the J Space skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the J Space skill?

Use J Space when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use J Space" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the J Space skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. J Space is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/puntorigen/skills/blob/HEAD/j-space/SKILL.md
Author: puntorigen
Website: https://skills.sh/puntorigen/skills

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

puntorigen. (2026). J Space [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/j-space/

BibTeX

@misc{j-space-2026,
  author    = {puntorigen},
  title     = {J Space [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/j-space/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/j-space.svg)](https://claudskills.com/skills/j-space/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade B · scanned 2026-09-28 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (supply-chain), including a high-severity pattern. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
⚠ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: B](https://img.shields.io/badge/Security-B-558b2f)](https://claudskills.com/skills/j-space/#security)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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