Matter Workspace logo

Matter Workspace

OrganizationPopular
anthropics
matter-workspace

Manage matter workspaces — new, list, switch, close, or detach (practice- level). Creates, lists, switches, closes, and detaches the active matter so context from one client engagement never leaks into another. Use when a multi-client practitioner says "new matter", "switch matter", "list my matters", "close this matter", or needs to manage which matter is active.

Overview

Publisheranthropics
Repositoryclaude-for-legal
Skill namematter-workspace
Stars
9.5K
Forks
1.8K
Bundled files
Instructions only
LicenseApache-2.0
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • Self-contained

    Everything the model needs lives in the instructions — no extra files to sync.

  • Open source

    Published by anthropics on GitHub. Read the source before you install it.

Installation

Install the Matter Workspace AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/anthropics/claude-for-legal.git /tmp/claude-for-legal
mkdir -p .claude/skills
cp -r /tmp/claude-for-legal/employment-legal/skills/matter-workspace .claude/skills/matter-workspace
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Matter Workspace in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Matter Workspace on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Matter Workspace is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

/matter-workspace

Practitioners work across multiple clients and matters. A matter workspace keeps one client or engagement's context separate from every other. This skill manages those workspaces.

Subcommands

  • /employment-legal:matter-workspace new <slug> — create a new matter workspace, run a short intake, write matter.md
  • /employment-legal:matter-workspace list — list matters with status and active flag
  • /employment-legal:matter-workspace switch <slug> — set the active matter
  • /employment-legal:matter-workspace close <slug> — archive a matter (move to ~/.claude/plugins/config/claude-for-legal/employment-legal/matters/_archived/, never delete)
  • /employment-legal:matter-workspace none — detach from any active matter, work at practice-level only

Instructions

  1. Read ~/.claude/plugins/config/claude-for-legal/employment-legal/CLAUDE.md — confirm the ## Matter workspaces section is populated. If Enabled is , tell the user: "Matter workspaces are off — you're configured as an in-house practice with one client, so the plugin works from practice-level context automatically. If you actually work across multiple clients, re-run /employment-legal:cold-start-interview --redo and select a private-practice setting. Otherwise, you don't need /matter-workspace at all." Don't error — the disabled state is the expected one for in-house users.
  2. Use the subcommand logic below.
  3. Dispatch on the first token of $ARGUMENTS:
    • new → run the intake interview, write ~/.claude/plugins/config/claude-for-legal/employment-legal/matters/<slug>/matter.md, seed history.md and notes.md.
    • list → enumerate ~/.claude/plugins/config/claude-for-legal/employment-legal/matters/*/matter.md, print a table, mark the active matter.
    • switch → update the Active matter: line in the practice-level CLAUDE.md.
    • close → move ~/.claude/plugins/config/claude-for-legal/employment-legal/matters/<slug>/ to ~/.claude/plugins/config/claude-for-legal/employment-legal/matters/_archived/<slug>/, log the close date in history.md.
    • none → set Active matter: to none — practice-level context only.
  4. Show the user what changed and confirm before writing.

Notes

  • The skill never reads across matters unless Cross-matter context is on in the practice-level CLAUDE.md.
  • Archiving is not deletion — closed matters remain readable for retention/conflicts purposes.
  • Slugs are lowercase with hyphens. If a slug is reused across archived and active, the archived one is preserved under _archived/<slug>/.

Reference

Multi-client practitioners (private practice — solo, small firm, large firm) work across many matters. Context from one must not leak into another. This skill is the thin file-management layer that makes that true.

Default state is off. In-house users never see this — they run at practice-level only. Matter workspaces turn on at cold-start for private-practice users, or by editing ## Matter workspaces in the practice-level CLAUDE.md. If Enabled is , this skill does not run; instead it explains the disabled state and suggests /employment-legal:cold-start-interview --redo for users who actually need matter isolation.

Storage layout

All matter data lives under:

~/.claude/plugins/config/claude-for-legal/employment-legal/
├── CLAUDE.md                       # practice-level practice profile
└── matters/
    ├── <slug>/
    │   ├── matter.md               # client, counterparty, matter type, key facts, overrides
    │   ├── history.md              # dated log of events, decisions, drafts, reviews
    │   ├── notes.md                # free-form working notes
    │   └── outputs/                # skill outputs for this matter (optional subfolder)
    └── _archived/
        └── <slug>/                 # closed matters — readable but not active

Slugs are lowercase with hyphens. Examples: acme-msa-2026, zenith-renewal, vendor-xyz-nda.

Active matter is in the practice CLAUDE.md

The Active matter: line under ## Matter workspaces in the practice-level CLAUDE.md is the single source of truth. Switching a matter edits that line. No separate state file.

Subcommand logic

new <slug>

  1. Confirm slug is not already present in matters/<slug>/ or matters/_archived/<slug>/. If reused, ask the user to pick a different slug.
  2. Run the intake interview:
    • Client (the party we represent, or the internal business unit if in-house)
    • Counterparty (the other side — may be multiple)
    • Matter type (read the plugin's practice profile for typical categories; for employment-legal: hire | termination | investigation | leave | accommodation | classification | country expansion | policy project | other)
    • Confidentiality level (standard | heightened | clean-team — heightened prompts extra care in cross-matter settings)
    • Key facts (2–5 sentences: what this matter is about, who the stakeholders are, what's at stake)
    • Matter-specific overrides to the practice playbook (e.g., "client requires 24-month LoL cap not 12", "counterparty is a strategic partner — relationship-preserving tone")
    • Related matters (slugs of any connected matters)
  3. Write matters/<slug>/matter.md using the template below.
  4. Seed matters/<slug>/history.md with a single "Opened" entry.
  5. Create an empty matters/<slug>/notes.md.
  6. Do not auto-switch to the new matter. Ask: "Want to switch to <slug> now? (/employment-legal:matter-workspace switch <slug>)"

list

Enumerate matters/*/matter.md. Read each file's front-matter or first few lines to extract status. Print a table:

SlugClientMatter typeStatusOpenedActive

Mark the currently-active matter with *. Include _archived/* under a separate "Archived" heading if any exist.

switch <slug>

  1. Confirm matters/<slug>/matter.md exists. If not, offer /employment-legal:matter-workspace new <slug>.
  2. Edit the Active matter: line in the practice-level CLAUDE.md to Active matter: <slug>.
  3. Show the user the matter.md summary so they can confirm they're on the right matter.

close <slug>

  1. Confirm matters/<slug>/ exists.
  2. Append a "Closed" entry to matters/<slug>/history.md with today's date.
  3. Move matters/<slug>/matters/_archived/<slug>/.
  4. If the closed matter was the active matter, set Active matter: to none — practice-level context only.

none

Set Active matter: in the practice-level CLAUDE.md to none — practice-level context only. Confirm with the user.

matter.md template

markdown
[WORK-PRODUCT HEADER — per plugin config ## Outputs — differs by role; see `## Who's using this` in the practice-level CLAUDE.md]

# Matter: [Client] — [short description]

**Slug:** [slug]
**Opened:** [YYYY-MM-DD]
**Status:** active
**Confidentiality:** [standard / heightened / clean-team]

---

## Parties

**Client:** [name]
**Counterparty:** [name(s)]

## Matter type

[vendor MSA | customer agreement | NDA | SaaS subscription | amendment | renewal | other — with one-line rationale]

## Key facts

[2–5 sentences. What this matter is about. Who the stakeholders are. What's at stake. What makes it different from the default playbook.]

## Matter-specific overrides

*Any deviation from the practice-level playbook that applies to this matter and only this matter.*

- [e.g., "LoL cap: client requires 24 months, not house standard 12."]
- [e.g., "Tone: relationship-preserving — counterparty is a strategic partner."]
- [e.g., "Governing law: must be English law, not Delaware."]

## Related matters

- [slug — one line why related]

## Notes on confidentiality

[If heightened or clean-team, describe why. Who may see matter files. Whether cross-matter context is permissible even if globally on.]

history.md seed

markdown
# History: [Client] — [short description]

Append-only event log. Most recent at top.

---

## [YYYY-MM-DD] — Matter opened

Intake completed. Slug: `[slug]`. Status: active.
[Any initial context worth preserving beyond matter.md — e.g., "Opened in response to inbound MSA draft from [counterparty]."]

Cross-matter context

The practice-level CLAUDE.md has a Cross-matter context: flag. When it's off (the default), a skill working in matter A never reads files in matters/B/ for any other B. Period. This is the confidentiality guarantee the setting exists to provide.

When it's on, a skill may read files across matter folders only when the user explicitly asks it to (e.g., "compare our position on liability caps across the last five vendor matters"). Even when on, the default is to load only the active matter unless the user asks for a cross-matter view.

What this skill does not do

  • Run a conflicts check. Conflicts are the practitioner's/firm's job; the intake captures what the user declares.
  • Enforce retention. Closing archives a matter; it does not delete. Retention policy is out of scope.
  • Auto-route outputs. The substantive skill decides where to write; this skill tells it which folder is active, not what to put in it.
  • Decide whether cross-matter is appropriate. It reads the flag and obeys.

Frequently asked questions

What does the Matter Workspace AI skill do?

Manage matter workspaces — new, list, switch, close, or detach (practice- level). Creates, lists, switches, closes, and detaches the active matter so context from one client engagement never leaks into another. Use when a multi-client practitioner says "new matter", "switch matter", "list my matters", "close this matter", or needs to manage which matter is active.

Why use Matter Workspace on TypingMind?

Because you install it once and use it with any model. Matter Workspace is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Matter Workspace in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/anthropics/claude-for-legal/tree/main/employment-legal/skills/matter-workspace. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Matter Workspace?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Matter Workspace?

As many as you like. As long as a model supports skills, you can use Matter Workspace with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Matter Workspace AI skill free?

Yes. It is published on GitHub by anthropics under the Apache-2.0 license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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