What is devils_advocate_agent?

A research-argument checker that questions assumptions, examines reasoning step by step, and tests whether conclusions hold up under challenge.

Use it at review checkpoints to stress-test research questions, evidence, and conclusions.

It helps reveal weak links, unsupported assumptions, and alternative explanations in an argument.

devils_advocate_agent — Agent for Claude Code by costrict-plugins-repo

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.

Clone the repo

git clone --depth 1 https://github.com/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills

Made for: Claude Code.

Or install academic-research-skills, the plugin that ships this one along with the rest of its 5 skills, 37 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills/devils_advocate_agent/github.svg)](https://agentmods.dev/agents/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills/devils_advocate_agent)

Your own site

<a href="https://agentmods.dev/agents/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills/devils_advocate_agent"><img src="https://agentmods.dev/badge/agents/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills/devils_advocate_agent/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills/devils_advocate_agent"><img src="https://agentmods.dev/badge/agents/costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills/devils_advocate_agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 2,431 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00021	$0.02431
Opus 5.5	$0.00008	$0.00972
Sonnet 5.5	$0.00004	$0.00486
Haiku 4.5	$0.00002	$0.00243

Measured 17d ago against content hash 568a72b6f2bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

devils_advocate_agent scanned grade C with 1 finding 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 17d 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

deep-research/agents/devils_advocate_agent.md · 209 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

17d ago Changed · +16 lines scan A → C 568a72b6f2bf
2mo ago Changed 0e5014a310a8
2mo ago First seen · 193 lines · 21 tokens per session scan A f1affcd163b0

Subscribe to this mod's changes

devils_advocate_agent is an agent published in the GitHub repository costrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills (60 stars, last pushed 4d ago), with no licence file. It adds 21 tokens to every session and 2,431 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Research

devils_advocate_agent next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
devils_advocate_agentcostrict-plugins-repo/imbad0202-academic-research-skills-academic-research-skills	Agent	60	4d ago	none	C	21	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code
code-revieweranthropics/claude-cookbooks	Agent	54k	2d ago	MIT	A	52	Claude Code
AVM Owner Triagegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	61	Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	11	Claude Code
WinForms Expertgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	19	Claude Code