Motion Opposition Drafter

Motion Opposition Drafter is a skill for Claude Code, Codex from zgbrenner/agentcounsel. It costs 63 tokens per session (1,944 once invoked), scanned A, original, MIT.

A draft response brief opposing a motion in a lawsuit. It breaks the other side's arguments into individual points and connects each response to the supplied evidence and legal authorities.

In plain words
What is it for?
It is for outlining point-by-point responses, mapping cited authorities to verification tasks, and assembling a source-based draft for attorney review.
Why use it?
It gives counsel an organized first draft while making unsupported citations and missing sources visible. It reduces the risk of overlooking an argument in the opposing papers.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for outlining point-by-point responses, mapping cited authorities to verification tasks, and assembling a source-based draft for attorney review.

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Install with agentmods
npx agentmods add skills/zgbrenner/agentcounsel/motion-opposition-drafter
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 zgbrenner/agentcounsel --skill motion-opposition-drafter
Clone the repo
git clone --depth 1 https://github.com/zgbrenner/agentcounsel

Made for: Claude Code, Codex.

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 Motion Opposition Drafter

README.md
[![agentmods](https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/motion-opposition-drafter/github.svg)](https://agentmods.dev/skills/zgbrenner/agentcounsel/motion-opposition-drafter)
Your own site
<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/motion-opposition-drafter"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/motion-opposition-drafter/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 Motion Opposition Drafter

Your own site · 80×15
<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/motion-opposition-drafter"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/motion-opposition-drafter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,944 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00063 $0.01944
Opus 5 $0.00032 $0.00972
Sonnet 5 $0.00013 $0.00389
Haiku 4.5 $0.00006 $0.00194

Measured 9d ago against content hash 006794e093e2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Motion Opposition Drafter 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 9d 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.

skills/litigation/motion-opposition-drafter/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Motion Opposition Drafter

Purpose

Produce a disciplined first draft of an opposition or response brief for attorney review. The workflow deconstructs the movant's actual papers, maps each argument to a point-by-point response, cites only provided record materials, and treats every movant authority as unverified. It never invents counter-authority. A missing authority becomes a visible research referral rather than a fabricated citation.

This skill does not decide litigation strategy, predict an outcome, or produce a final filing. The draft is legal work product for a licensed attorney to revise and approve. Do not file unreviewed.

Use When

  • An opposing party has filed a dispositive or non-dispositive motion and counsel needs a first-draft opposition, response outline, or structured oral-argument outline.
  • The complete motion papers and enough record material to answer them are available.
  • The user needs drafting around authority already supplied or directed by counsel, not independent legal research.
  • The matter is active litigation and the output will remain within attorney review.

Required Inputs

  • Matter identification. Matter name, number, and enough context to identify the proceeding.
  • Complete movant papers. The motion, supporting memorandum, declarations, affidavits, and exhibits. A summary is not a substitute. Stop if the papers are missing.
  • Case theory and opposition position. A concise statement of why the requested relief should be denied or limited. Stop if this is missing.
  • Record materials. Documents, testimony, pleadings, declarations, or other provided items supporting each response point. Every factual statement must cite a provided record item or carry [VERIFY: record cite needed].
  • Response deadline. Record only the date exactly as supplied from the docket, scheduling order, or attorney. The skill never calculates a response date and always marks it [deadline verification required].
  • Forum requirements. Pasted local rules, standing orders, page or word limits, and citation requirements. Anything not supplied remains [CONFIRM: forum rule not provided].
  • Directed authorities. Authorities counsel has already identified and authorized for use. Missing response authority remains [citation needed] and may require skills/legal-research/legal-research-memo/SKILL.md.
  • Standard of review. Use counsel's supplied formulation or [CONFIRM: standard of review - verify jurisdiction].
  • Optional: a populated practice-profiles/litigation.md, treated as guidance rather than authority.

Read the full file on GitHub · 119 lines

Files

What ships with it

5 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. 9d ago First seen · 119 lines · 63 tokens per session scan A 006794e093e2

Subscribe to this mod's changes

Motion Opposition Drafter is a skill published in the GitHub repository zgbrenner/agentcounsel (19 stars, last pushed 1mo ago), licensed MIT. It adds 63 tokens to every session and 1,944 once invoked, about $0.0003 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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