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/crucible)<a href="https://agentmods.dev/skills/damionrashford/adversaria/crucible"><img src="https://agentmods.dev/badge/skills/damionrashford/adversaria/crucible/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/crucible"><img src="https://agentmods.dev/badge/skills/damionrashford/adversaria/crucible.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 | $0.01515 |
| Opus 5 | $0.00036 | $0.00758 |
| Sonnet 5 | $0.00014 | $0.00303 |
| Haiku 4.5 | $0.00007 | $0.00152 |
Grade A, and why
crucible 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.
How it starts
The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Crucible
Context: $ARGUMENTS
Find everything wrong with this idea. Socratic questioning, hostile review, and adversarial simulation.
Workflow
1. Initialize (or pick up existing graph)
Check if a graph already exists from a prior steelman:
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" show
If empty or no prior state, build the graph from scratch. Identify the idea's core claims and assumptions and register them:
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" reset
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" add "<claim-id>" claim --obs "<fact>" --agent adversary
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" add "<assumption-id>" assumption --obs "<fact>" --agent adversary
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" relate "<claim-id>" assumes "<assumption-id>" --agent adversary
If a graph already exists, use it directly.
2. Socratic Elenchus (probe assumptions)
Read ${CLAUDE_PLUGIN_ROOT}/references/socratic-method.md.
Apply Vlastos' steps:
- Identify the thesis (what the idea claims)
- Identify premises the proponent would agree with
- Show how those premises lead to conclusions that CONTRADICT the thesis
Ask 3-5 penetrating questions. Each question targets a specific assumption. Present the questions to the user.
3. Structural analysis
Run the graph analysis to find gaps the questions should have exposed:
bun "${CLAUDE_PLUGIN_ROOT}/scripts/argument-graph.ts" analyze
This reveals ungrounded_assumptions (nothing supports them), unstable_claims (with failed_dependencies naming what they rest on that isn't established), exposed_weaknesses (still standing — nothing countered them), most_contested_claims, circular_reasoning (dependency cycles), orphaned_entities (attached to nothing), and labels — the current IN/OUT/UNDECIDED standing of every node.
Read labels before attacking. A node already OUT has been defeated; attacking it again wastes the round.
What ships with it
3 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.
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.
- 9d ago Changed · +9 lines 703db68efb51
- 12d ago First seen · 118 lines · 72 tokens per session scan A 245e26d9b11d
crucible is a skill published in the GitHub repository damionrashford/Adversaria (7 stars, last pushed 10d ago), licensed MIT. It adds 72 tokens to every session and 1,515 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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