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 agentsope/SkillAlchemy --skill leapgit clone --depth 1 https://github.com/agentsope/SkillAlchemyWrote 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/agentsope/skillalchemy/leap)<a href="https://agentmods.dev/skills/agentsope/skillalchemy/leap"><img src="https://agentmods.dev/badge/skills/agentsope/skillalchemy/leap/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/agentsope/skillalchemy/leap"><img src="https://agentmods.dev/badge/skills/agentsope/skillalchemy/leap.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 373 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Agent Snooping · line 468 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
- medium Rogue Agent · line 666 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00052 | $0.07087 |
| Opus 5.5 | $0.00021 | $0.02835 |
| Sonnet 5.5 | $0.00010 | $0.01417 |
| Haiku 4.5 | $0.00005 | $0.00709 |
Grade A, and why
LEAP 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 — 783 lines — stays where its author put it; the contents beside it link to each section on GitHub.
LEAP · Skill Builder
LEAP does not choose the request type or interact with the user. SkillAlchemy selects the branch and handles each user checkpoint. LEAP runs the selected pipeline and returns the result.
Branch Routing
| Command | Branch | Pipeline |
|---|---|---|
distill / distillation |
Branch A | Distillation pipeline — extract the target OS from raw data and compile it into a persona/tool skill |
fuse / fusion |
Branch B | Fusion pipeline — method.skill (skeleton) × subject.skill(s) (flesh) → output.skill |
Invocation Modes
| Mode | Trigger | Behavior |
|---|---|---|
| Full run | No special keyword | Run the full pipeline and output a skill package |
| Plan only | stop after Stage 3 or stop_after_stage: 3 |
Run Branch A Stages 1-3 only; stop after writing research_plan.json |
| Resume | continue from Stage 4 or resume_from_stage: 4 |
Skip Branch A Stages 1-3; use the existing research_plan.json and run Stages 4-7 plus Gate 1 |
Branch A: Distillation Pipeline
Source Intake → Intake Assessment → Research Plan Design
→ Research Swarm → Gate 1: Merge
→ Exemplar Discovery → Synthesis (3 agents)
→ Skill Compilation
Core principle: extract the operating system behind the source, not just the content or answer.
A-Stage 1: Source Intake
Input: person, author, method, organization, domain, URL, repo, or local files.
Create package workspace at output/<target-slug>-skill/:
output/<target-slug>-skill/
├── README.md
├── SKILL.md.draft
├── references/ # agent reports + exemplars
├── intermediate/ # structured data
└── examples/ # persona: required; tool: optional
Do not pre-create
templates/; output templates live in LEAP's shared layer and are not needed in the generated skill.
Write intermediate/open_world_task.json with the capability brief g, target,
source-access specification S (allowed source types, retrieval channels, and
exclusions), execution/package constraints C, and depth_level. Every later
retrieval must comply with S; existing skills are not eligible exemplars unless
S explicitly permits them.
What ships with it
19 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.
- domains/cybersecurity/domain.md 2.1 KB
- domains/energy/domain.md 2.1 KB
- domains/finance/domain.md 1.9 KB
- domains/healthcare/domain.md 2.1 KB
- domains/manufacturing/domain.md 2.1 KB
- domains/mathematics/domain.md 2.1 KB
- domains/media-content-production/domain.md 2.4 KB
- domains/natural-science/domain.md 2.0 KB
- domains/office-white-collar/domain.md 2.1 KB
- domains/persona-os/domain.md 5.3 KB
- domains/robotics/domain.md 1.9 KB
- domains/software-engineering/domain.md 2.0 KB
- references/skill-grammar.md 17 KB
- scripts/build_component_index.py 24 KB runs code
- scripts/build_corpus.py 11 KB runs code
- scripts/download_subtitles.sh 2.1 KB runs code
- scripts/score_skill.py 6.8 KB runs code
- scripts/srt_to_transcript.py 3.3 KB runs code
- skill.json 132 B
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 First seen · 783 lines · 52 tokens per session scan A 5edb267e29d5
LEAP is a skill published in the GitHub repository agentsope/SkillAlchemy (445 stars, last pushed 14d ago), licensed MIT. It adds 52 tokens to every session and 7,087 once invoked, about $0.0002 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 2026-08-30.
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