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.
npx skills add zgbrenner/agentcounsel --skill create-matter-workspacegit clone --depth 1 https://github.com/zgbrenner/agentcounselWrote 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/zgbrenner/agentcounsel/create-matter-workspace)<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/create-matter-workspace"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/create-matter-workspace/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/zgbrenner/agentcounsel/create-matter-workspace"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/create-matter-workspace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00046 | $0.02210 |
| Opus 5 | $0.00023 | $0.01105 |
| Sonnet 5 | $0.00009 | $0.00442 |
| Haiku 4.5 | $0.00005 | $0.00221 |
Grade A, and why
Create Matter Workspace 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 5d 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 — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Matter Workspace
Purpose
Produce a populated matter-workspace draft — the single organizing file that carries one legal matter's parties, facts, jurisdiction, deadlines, documents, open items, and the draft work product produced by every skill run for that matter. This skill selects the correct template from matter-workspaces/, interviews the user for the core matter information, fills in what is known, marks what is missing with [CONFIRM: ...] and [ACTION: ...] placeholders, and explains how to keep the workspace current as further skills are run.
A matter workspace is what preserves context across a multi-step engagement: each skill run is recorded in one place, so facts, deadlines, and drafts are not lost between conversations. This skill produces draft legal work product for attorney review — not legal advice.
Use When
- A new legal matter is being opened that will involve more than one skill, document, deadline, or team member.
- The user asks to "set up a matter," "create a workspace," "start a new matter file," or "organize this matter."
- Complex or multi-step legal work is about to begin and needs a single organizing file before the first substantive skill is run.
- An existing matter has accumulated drafts, dates, and open items across several conversations and now needs a consolidated workspace.
- The user is unsure which matter-workspace template fits the matter and wants a recommendation.
Required Inputs
- The matter type, or enough description of the legal work to infer it: litigation or dispute, contract review, privacy, regulatory, corporate transaction, employment, or other.
- The client's identity and the responsible attorney or team, if known.
- A short description of the matter — what it concerns and what outcome is sought.
- Any already-known parties, jurisdiction or governing law, key dates, and source documents.
The skill can proceed with partial information; anything not provided is recorded as a [CONFIRM: ...] placeholder. But the matter type (or enough description to infer it) and the client identity are needed to select a template and begin. If the matter type cannot be determined, ask before proceeding — do not guess.
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.
- 5d ago First seen · 133 lines · 46 tokens per session scan A 7f99cc4863d2
Create Matter Workspace is a skill published in the GitHub repository zgbrenner/agentcounsel (18 stars, last pushed 1mo ago), licensed MIT. It adds 46 tokens to every session and 2,210 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 2026-09-03.
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