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 plurigrid/asi --skill skill-makergit clone --depth 1 https://github.com/plurigrid/asiWrote 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/plurigrid/asi/skill-maker)<a href="https://agentmods.dev/skills/plurigrid/asi/skill-maker"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/skill-maker/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/plurigrid/asi/skill-maker"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/skill-maker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
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 →
- high Rogue Agent · line 577 Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
- medium Rogue Agent · line 573 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 | $0.00021 | $0.04422 |
| Opus 5 | $0.00010 | $0.02211 |
| Sonnet 5 | $0.00004 | $0.00884 |
| Haiku 4.5 | $0.00002 | $0.00442 |
Grade A, and why
Skill Maker: AI Skill Factory for Tools scanned grade A 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 7d 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
result = subprocess.run( How it starts
The opening of the file, as written. The whole thing — 660 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Maker: AI Skill Factory
Version: 1.0.0 Status: Production Ready Trit Assignment: 0 (neutral, structural - scaffolds other skills) Principle: Template-driven skill generation with SplitMix seeding
Purpose
The Skill Maker is a meta-skill that automatically generates domain-specific AI skills by:
- Analyzing Tool Documentation - Firecrawl documentation, README, API specs
- Applying SKILL.md Pattern - Deterministic output, ternary polarity, SPI guarantee, parallelism
- Generating Custom SKILL.md - Fully functional, production-ready skill
- Registering with Claude Code - Immediate availability as new skill
Architecture
Skill Maker Pipeline
├─ Phase 1: Tool Discovery (Firecrawl + documentation analysis)
├─ Phase 2: Pattern Recognition (extract key operations, outputs, semantics)
├─ Phase 3: SplitMix Adaptation (add deterministic seeding to tool)
├─ Phase 4: Ternary Mapping (classify outputs to GF(3) = {-1, 0, +1})
├─ Phase 5: Parallelism Design (split-stream, work-stealing architecture)
├─ Phase 6: SKILL.md Generation (template expansion with tool specifics)
└─ Phase 7: MCP Integration (register and deploy skill)
Phase 1: Tool Discovery
Firecrawl-Based Documentation Analysis
from firecrawl import FirecrawlApp
import re
class ToolDiscovery:
def __init__(self, tool_name: str):
self.tool_name = tool_name
self.app = FirecrawlApp(api_key=os.getenv("FIRECRAWL_API_KEY"))
def discover_tool(self) -> dict:
"""Automatically discover tool via web search and documentation."""
# Search for tool
search_results = self.app.search(
f"{self.tool_name} documentation API reference"
)
# Extract key URLs
urls = [result['url'] for result in search_results[:5]]
# Scrape and analyze
tool_spec = {
"name": self.tool_name,
"description": "",
"operations": [],
"inputs": [],
"outputs": [],
"examples": [],
"urls": urls
}
for url in urls:
doc = self.app.scrape_with_markdown(url)
content = doc['markdown']
# Extract operations
operations = self._extract_operations(content)
tool_spec["operations"].extend(operations)
# Extract examples
examples = self._extract_examples(content)
tool_spec["examples"].extend(examples)
# Extract description
if not tool_spec["description"]:
tool_spec["description"] = content.split('\n')[0:5]
return tool_spec
def _extract_operations(self, content: str) -> list:
"""Extract operation names from documentation."""
# Look for function/method signatures
patterns = [
r'def\s+(\w+)\(', # Python
r'fn\s+(\w+)\(', # Rust
r'function\s+(\w+)\(', # JavaScript
r'public\s+\w+\s+(\w+)\(', # Java
]
operations = []
for pattern in patterns:
matches = re.findall(pattern, content)
operations.extend(matches)
return list(set(operations))
def _extract_examples(self, content: str) -> list:
"""Extract code examples from documentation."""
# Look for code blocks
examples = re.findall(r'```[\w]*\n(.*?)```', content, re.DOTALL)
return examples[:5] # Top 5 examples
What ships with it
1 file 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.
- 7d ago First seen · 660 lines · 21 tokens per session scan A 27b82cbded45
Skill Maker: AI Skill Factory for Tools is a skill published in the GitHub repository plurigrid/asi (62 stars, last pushed 2mo ago), licensed MIT. It adds 21 tokens to every session and 4,422 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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