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.
npx skills add IamK77/Skill --skill cruciblegit clone --depth 1 https://github.com/IamK77/SkillWrote 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/iamk77/skill/crucible)<a href="https://agentmods.dev/skills/iamk77/skill/crucible"><img src="https://agentmods.dev/badge/skills/iamk77/skill/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/iamk77/skill/crucible"><img src="https://agentmods.dev/badge/skills/iamk77/skill/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 | $0.00036 | $0.00596 |
| Opus 5.5 | $0.00014 | $0.00238 |
| Sonnet 5.5 | $0.00007 | $0.00119 |
| Haiku 4.5 | $0.00004 | $0.00060 |
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 1mo 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 — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.
crucible
Invent and reshape research mechanisms through analogy, inversion, and recombination. Use while the idea is unsettled; no mandatory tournament, novelty certificate, or convergence.
Starting point
A mechanism is a story about how one change could produce another. Keep several incompatible stories alive long enough to learn what each lets you notice.
Bring a question, fragment, reference, or tension. Follow whichever association becomes useful; these invitations are not a sequence to complete. Speculation should remain distinguishable from an observed fact.
Thought experiments
Transfer a mechanism, not its costume
Borrow feedback, competition, memory, or conservation from another domain. Name the relation being transferred and where the analogy would break.
Invert the expensive assumption
If a method assumes perfect information, abundant compute, or stationary data, imagine the opposite. Does the objective change, or can the mechanism exploit the apparent weakness?
Recombine at the seam
Take the representation of one idea and the update rule of another. Sketch the simplest interesting case before adding machinery. A deliberately awkward hybrid can reveal a third option.
A possible turn
A search procedure repeatedly restarts after failure. A memory analogy suggests retaining forbidden regions; a market analogy suggests reallocating effort by opportunity cost; a developmental analogy suggests changing the representation over time. The aim is distinct causal stories, not renamed parameter settings.
Leave the space open
Offer a few genuinely different possibilities, a sketch, an analogy, or a sharper question when useful. Do not turn every prompt into a scored diagnostic, a completion gate, or a demand for an action plan. The human may choose a direction, combine them, or leave the question open.
What ships with it
6 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.
- 1mo ago Changed · -128 lines · -140 tokens per session a80151098f7f
- 1mo ago First seen · 184 lines · 176 tokens per session scan A 4478c52a9d54
crucible is a skill published in the GitHub repository IamK77/Skill (2 stars, last pushed 15d ago), licensed Apache-2.0. It adds 36 tokens to every session and 596 once invoked, about $0.0001 per session on Opus 5.5. 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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