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 basher83/lunar-claude --skill skill-factorygit clone --depth 1 https://github.com/basher83/lunar-claudeWrote 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/basher83/lunar-claude/skill-factory)<a href="https://agentmods.dev/skills/basher83/lunar-claude/skill-factory"><img src="https://agentmods.dev/badge/skills/basher83/lunar-claude/skill-factory/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/basher83/lunar-claude/skill-factory"><img src="https://agentmods.dev/badge/skills/basher83/lunar-claude/skill-factory.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 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 101 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.
- high Rogue Agent · line 187 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.
- low Excessive Agency · line 28 Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.Fix: Limit the skill's scope to its documented purpose. Remove instructions that enable the agent to perform actions outside its stated functionality.
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 | $0.00043 | $0.03881 |
| Opus 5.5 | $0.00017 | $0.01552 |
| Sonnet 5.5 | $0.00009 | $0.00776 |
| Haiku 4.5 | $0.00004 | $0.00388 |
Grade A, and why
skill-factory 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 2mo 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 — 457 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Factory
Comprehensive workflow orchestrator for creating high-quality Claude Code skills with automated research, content review, and multi-tier validation.
When to Use This Skill
Use skill-factory when:
- Creating any new skill - From initial idea to validated, production-ready skill
- Research needed - Automate gathering of documentation, examples, and best practices
- Quality assurance required - Ensure skills meet official specifications and best practices
- Guided workflow preferred - Step-by-step progression with clear checkpoints
- Validation needed - Runtime testing, integration checks, and comprehensive auditing
Scope: Creates skills for ANY purpose (not limited to meta-claude plugin):
- Infrastructure skills (terraform-best-practices, ansible-vault-security)
- Development skills (docker-compose-helper, git-workflow-automation)
- Domain-specific skills (brand-guidelines, conventional-git-commits)
- Any skill that extends Claude's capabilities
Available Operations
The skill-factory provides 9 specialized commands for the create-review-validate lifecycle:
| Command | Purpose | Use When |
|---|---|---|
/meta-claude:skill:research |
Gather domain knowledge using firecrawl API | Need automated web scraping for skill research |
/meta-claude:skill:format |
Clean and structure research materials | Have raw research needing markdown formatting |
/meta-claude:skill:create |
Initialize skill structure with references | Ready to scaffold skill directory from research |
/meta-claude:skill:write |
Synthesize references into SKILL.md content | Skill initialized but needs content written |
/meta-claude:skill:review-content |
Validate content quality and clarity | Need content review before compliance check |
/meta-claude:skill:review-compliance |
Run quick_validate.py on SKILL.md | Validate YAML frontmatter and naming conventions |
/meta-claude:skill:validate-runtime |
Test skill loading in Claude context | Verify skill loads without syntax errors |
/meta-claude:skill:validate-integration |
Check for conflicts with existing skills | Ensure no duplicate names or overlaps |
/meta-claude:skill:validate-audit |
Invoke claude-skill-auditor agent | Get comprehensive audit against Anthropic specs |
What ships with it
10 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/design-principles.md 1.1 KB
- references/error-handling.md 4.7 KB
- references/troubleshooting.md 1.5 KB
- references/workflow-architecture.md 2.1 KB
- references/workflow-examples.md 7.0 KB
- references/workflow-execution.md 2.3 KB
- scripts/format_skill_research.py 2.6 KB runs code
- scripts/package_skill.py 6.7 KB runs code
- scripts/quick_validate.py 3.9 KB runs code
- workflows/visual-guide.md 13 KB
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.
- 2mo ago First seen · 457 lines · 43 tokens per session scan A 803bde899ec5
skill-factory is a skill published in the GitHub repository basher83/lunar-claude (23 stars, last pushed today), licensed MIT. It adds 43 tokens to every session and 3,881 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 2026-09-03.
skill-factory compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| skill-factorybasher83/lunar-claude | Skill | 23 | today | MIT | A | 43 | Claude Code |
| imagegenopenai/codex | Skill | 134k | today | Apache-2.0 | A | 113 | Codex |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 3d ago | MIT | A | 200 | Claude Code, Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| systematic-debuggingobra/superpowers | Skill | 315k | 6d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |