Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add damionrashford/Adversaria/plugin install adversariaWrote 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.
[](https://agentmods.dev/skills/damionrashford/adversaria/devils-advocate)<a href="https://agentmods.dev/skills/damionrashford/adversaria/devils-advocate"><img src="https://agentmods.dev/badge/skills/damionrashford/adversaria/devils-advocate/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.
<a href="https://agentmods.dev/skills/damionrashford/adversaria/devils-advocate"><img src="https://agentmods.dev/badge/skills/damionrashford/adversaria/devils-advocate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00072 | $0.01955 |
| Opus 5 | $0.00036 | $0.00978 |
| Sonnet 5 | $0.00014 | $0.00391 |
| Haiku 4.5 | $0.00007 | $0.00196 |
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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Devil's Advocate (Full Analysis)
Context: $ARGUMENTS
Run a complete adversarial analysis by orchestrating all three sub-skills in sequence. Each builds on the shared argument graph.
Workflow
Phase 1 — Steelman + Contrary Case
Read ${CLAUDE_PLUGIN_ROOT}/references/steelmanning.md and ${CLAUDE_PLUGIN_ROOT}/references/dissoi-logoi.md.
Reset and initialize:
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" reset
bun "${CLAUDE_PLUGIN_ROOT}/scripts/thought-chain.ts" reset
bun "${CLAUDE_PLUGIN_ROOT}/scripts/thought-chain.ts" init "<subject>" --total 7
If the user asked to watch the analysis, start the live transcript in the background first — never otherwise, since it opens a browser:
bun "${CLAUDE_PLUGIN_ROOT}/scripts/transcript.ts" serve &
Build the strongest version of the argument, then argue the complete opposite with equal conviction. Register both in the graph as you go — a claim that never reaches the graph cannot be defended in Phase 3.
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" add "<claim-id>" claim --obs "<fact>" --agent advocate
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" add "<assumption-id>" assumption --obs "<fact>" --agent advocate
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" relate "<claim-id>" assumes "<assumption-id>" --agent advocate
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" add "<evidence-id>" evidence --obs "<source>" --agent advocate
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" relate "<evidence-id>" supports "<claim-id>" --agent advocate
Ground every assumption you can. An assumption with no supports edge demotes the claim resting on it.
bun "${CLAUDE_PLUGIN_ROOT}/scripts/thought-chain.ts" think 1 "<steelman>"
bun "${CLAUDE_PLUGIN_ROOT}/scripts/thought-chain.ts" think 2 "<contrary case>"
Present both to the user before continuing.
Phase 2 — Crucible
Read ${CLAUDE_PLUGIN_ROOT}/references/socratic-method.md, ${CLAUDE_PLUGIN_ROOT}/references/crucible.md, and ${CLAUDE_PLUGIN_ROOT}/references/red-team.md.
What ships with it
12 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.
- references/crucible.md 2.3 KB
- references/devils-advocate.md 1.7 KB
- references/dissoi-logoi.md 1.9 KB
- references/lawsuits-against-the-devil.md 2.2 KB
- references/polemic.md 1.8 KB
- references/red-team.md 2.8 KB
- references/roman-rota.md 2.0 KB
- references/social-gadfly.md 1.8 KB
- references/socratic-method.md 2.9 KB
- references/steelmanning.md 2.7 KB
- scripts/argument-graph.py 13 KB runs code
- scripts/thought-chain.py 11 KB runs code
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.
- 6d ago Changed · +39 lines a63f85b171b8
- 10d ago First seen · 118 lines · 72 tokens per session scan A 9fc79ea549fa
devils-advocate is a skill published in the GitHub repository damionrashford/Adversaria (7 stars, last pushed 8d ago), licensed MIT. It adds 72 tokens to every session and 1,955 once invoked, about $0.0004 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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