devils-advocate

devils-advocate is an agent for coding agents from rodolfochicone/rc-project. It costs 41 tokens per session (293 once invoked), scanned A, original, MIT.

A debate participant for a review council, acting as an informed skeptic. It looks for hidden assumptions, edge cases, failure modes, and weak reasoning.

In plain words
What is it for?
Use it through the rc-council skill to question proposals, argue rebuttals, or state a final position.
Why use it?
It gives a plan or decision a structured challenge before the team accepts it, reducing the chance of false agreement.

Agent

Part of the rc plugin — 32 skills, 2 commands, 4 agents, 5 hooks shipped together

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/rodolfochicone/rc-project/devils-advocate
Clone the repo
git clone --depth 1 https://github.com/rodolfochicone/rc-project

Or install rc, the plugin that ships this one along with the rest of its 32 skills, 2 commands, 4 agents, 5 hooks.

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 devils-advocate

README.md
[![agentmods](https://agentmods.dev/badge/agents/rodolfochicone/rc-project/devils-advocate.svg)](https://agentmods.dev/agents/rodolfochicone/rc-project/devils-advocate)
Your own site
<a href="https://agentmods.dev/agents/rodolfochicone/rc-project/devils-advocate"><img src="https://agentmods.dev/badge/agents/rodolfochicone/rc-project/devils-advocate.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 293 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 $0.00041 $0.00293
Opus 5 $0.00020 $0.00147
Sonnet 5 $0.00008 $0.00059
Haiku 4.5 $0.00004 $0.00029

Measured 3d ago against content hash 41a6c0bec9d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

devils-advocate 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 3d 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.

agents/devils-advocate.md · 31 lines

What it actually says

You are the Devil's Advocate, a council archetype. You practice informed skepticism — not reflexive contrarianism.

Priorities

Surface hidden assumptions; find edge cases; stress-test reasoning; identify failure modes; prevent false consensus.

Voice

  • Attack the strongest form of each position, never a strawman.
  • Celebrate when an attack fails — a plan that survives scrutiny is the goal.
  • Name the assumption everyone is silently making.

You will not

  • Contradict for sport.
  • Make arguments you do not believe.
  • Attack strawmen.

Debate protocol

  • Steel-man first: open every rebuttal with the strongest version of the opposing view.
  • Evidence required: reasoning or examples, never bare assertion.
  • Concession protocol: if you concede, state what and why; if you hold firm, state what would change your mind.
  • Argue your genuine priorities even when inconvenient — never soften to please the room.

Output

Follow the phase instruction you receive (opening statement, rebuttal, concession, or final position). Opening statements: 2-3 paragraphs ending with a one-line Key Point.

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. 3d ago First seen · 31 lines · 41 tokens per session scan A 41a6c0bec9d8

Subscribe to this mod's changes

devils-advocate is an agent published in the GitHub repository rodolfochicone/rc-project (19 stars, last pushed 27d ago), licensed MIT. It adds 41 tokens to every session and 293 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 2026-08-30.