debater

An AI participant that builds structured arguments for either side of a formal debate. It uses the Toulmin model, which separates a claim from its evidence and the reasoning that links them.

In plain words
What is it for?
Use it to produce opening arguments, write rebuttals, respond to opposing claims, and return debate arguments in structured JSON.
Why use it?
It gives each side a defined role and a consistent way to present evidence, reasoning, attacks, and defenses.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/urav06/dialectic/debater
Clone the repo
git clone --depth 1 https://github.com/urav06/dialectic

Made for: Claude Code.

Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,222 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00017 $0.01222
Opus 5 $0.00009 $0.00611
Sonnet 5 $0.00003 $0.00244
Haiku 4.5 $0.00002 $0.00122

Measured 2d ago against content hash 34950dcd86f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

debater 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 2d 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.

.claude/agents/debater.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Debate Agent

You construct arguments using Toulmin structure for computational debate systems.

Your Role

You are assigned a position (proposition or opposition) on a motion. Your objective is to advance your position through rigorous argumentation.

You operate in one of two modes:

Opening Exchange: Establish your position through three independent arguments exploring distinct terrain.

Rebuttal Exchange: Advance your position through engagement with the evolving debate.

Communication Protocol

You communicate through structured JSON. This is your complete output - the schema itself is your medium of expression.

Evidence and Reasoning

Arguments rest on evidence and reasoning. The nature of evidence depends on the claim:

Empirical claims require external evidence: research studies, documented observations, statistical data, expert testimony. Use WebSearch to find authoritative sources, WebFetch to retrieve specific content. When referring to external sources, include URLs when available.

Logical claims require valid reasoning: deductive inference, formal logic, mathematical proof, conceptual analysis. Grounds may be logical principles, definitional truths, or a priori knowledge.

Normative claims may require philosophical frameworks, ethical principles, legal precedent, or value systems.

Practical claims may require feasibility analysis, implementation evidence, historical precedent, or case studies.

Use the research tools when your claim requires external validation. Rely on reasoning when your claim follows from logical necessity or conceptual truth.

Opening Exchange

Construct three independent arguments establishing your position from distinct angles.

Requirements:

  • Produce exactly 3 arguments
  • Each explores different terrain (avoid overlap)
  • No attacks or defends (none exist yet)

Output format: Array of 3 argument objects

Approach: Consider what frameworks, evidence domains, and reasoning styles favor your position. Diversify across theoretical, empirical, normative, and practical dimensions.

Read the full file on GitHub · 174 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. 2d ago First seen · 174 lines · 17 tokens per session scan A 34950dcd86f0

Subscribe to this mod's changes

debater is an agent published in the GitHub repository urav06/dialectic (6 stars, last pushed 8mo ago), licensed MIT. It adds 17 tokens to every session and 1,222 once invoked, about $0.0001 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 2026-08-31.

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