Hallucination Red-Team

Hallucination Red-Team is a skill for Claude Code, Codex from zgbrenner/agentcounsel. It costs 47 tokens per session (1,378 once invoked), scanned A, original, MIT.

A legal-draft review that separates facts, legal statements, sources, user-provided information, and unsupported claims. It marks uncertainty and suggests safer wording, but does not verify the law.

In plain words
What is it for?
Use it to check legal memos, letters, research, or filings for unsupported facts, conclusions, quotations, and citations.
Why use it?
It helps expose made-up or weakly supported content before a legal document is shared or relied on.

Skill for Claude CodeCodex

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

Good fit Use it to check legal memos, letters, research, or filings for unsupported facts, conclusions, quotations, and citations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zgbrenner/agentcounsel/hallucination-red-team
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 hallucination-red-team
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 Hallucination Red-Team

README.md
[![agentmods](https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/hallucination-red-team/github.svg)](https://agentmods.dev/skills/zgbrenner/agentcounsel/hallucination-red-team)
Your own site
<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/hallucination-red-team"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/hallucination-red-team/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 Hallucination Red-Team

Your own site · 80×15
<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/hallucination-red-team"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/hallucination-red-team.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,378 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 $0.00047 $0.01378
Opus 5 $0.00023 $0.00689
Sonnet 5 $0.00009 $0.00276
Haiku 4.5 $0.00005 $0.00138

Measured 9d ago against content hash 21ca98a7aa67, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Hallucination Red-Team 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/legal-methodology/hallucination-red-team/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hallucination Red-Team

Purpose

Force a draft legal output to account for every factual claim, legal claim, cited authority, user-provided fact, model-generated statement, unsupported claim, and uncertainty marker. The skill produces either a safer revised version or a "not ready for use" finding.

This focused hallucination pass complements the broader Red-Team Verifier. It does not independently verify the law and does not certify that a draft is correct.

Use When

  • A draft contains legal claims, factual claims, citations, quotations, or confident conclusions that may be unsupported.
  • A user asks for a hallucination check, unsupported-claim audit, or safer revised version.
  • A draft will be sent externally, filed, used in a client communication, or relied on for a high-risk decision.
  • A model produced the draft without a clear claim/source table.

Choosing among the verification skills:

  • Use this skill for a targeted hunt for fabricated or unsupported content in a draft.
  • Use red-team-verifier instead for the full adversarial pass over an entire deliverable — the superset that also covers reasoning, framing, jurisdiction, and completeness.
  • Use citation-integrity-check instead when the review is limited to citations and quotations.
  • Use source-validation instead for claim-by-claim classification of whether each claim in a draft is supported by the available sources.

Required Inputs

  • The complete draft to red-team.
  • All user-provided facts and source documents available for comparison.
  • Any cited authorities, research notes, or source lists.
  • The intended use and recipient.

If the draft is missing, stop and request it. If sources are missing, continue only as a limitation-heavy hallucination risk screen.

Do Not Use When

  • The user wants new legal analysis instead of a verification pass.
  • The output has no claims to audit.
  • The user asks for a final certification that no hallucinations exist.
  • Source and citation discipline. Follow core/source-and-citation-discipline.md. Never invent legal authority, citations, quotations, statutes, cases, regulations, filing deadlines, or procedural rules. Label what is a provided source, a user-provided fact, an assumption, a legal inference, or an item requiring attorney verification, and use a citation placeholder such as [Attorney to insert authority] when no source is available.
  • Produce draft legal work product for attorney review. This is not legal advice.
  • Do not claim the absence of hallucinations. State only what was checked and what remains unresolved.
  • Do not invent sources, facts, citations, or safer substitute law.
  • Do not assert that an authority exists or is fabricated unless verified by source material available in the session.
  • Preserve privilege and confidentiality.

Read the full file on GitHub · 115 lines

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 · 115 lines · 47 tokens per session scan A 21ca98a7aa67

Subscribe to this mod's changes

Hallucination Red-Team is a skill published in the GitHub repository zgbrenner/agentcounsel (19 stars, last pushed 1mo ago), licensed MIT. It adds 47 tokens to every session and 1,378 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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