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 agentmods add skills/danielmiessler/lifeos/createskillnpx skills add danielmiessler/LifeOS --skill createskillgit clone --depth 1 https://github.com/danielmiessler/LifeOSWhat 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 | $0.00146 | $0.06763 |
| Opus 5 | $0.00073 | $0.03381 |
| Sonnet 5 | $0.00029 | $0.01353 |
| Haiku 4.5 | $0.00015 | $0.00676 |
Grade C, and why
CreateSkill scanned grade C with 2 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 2d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
- `/careful` — Intercept dangerous commands (rm -rf, DROP TABLE, force-push) Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -X POST http://localhost:31337/notify \ How it starts
The opening of the file, as written. The whole thing — 515 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Customization
Before executing, check for user customizations at:
~/.claude/LIFEOS/USER/CUSTOMIZATIONS/SKILLS/CreateSkill/
If this directory exists, load and apply any PREFERENCES.md, configurations, or resources found there. These override default behavior. If the directory does not exist, proceed with skill defaults.
🚨 MANDATORY: Voice Notification (REQUIRED BEFORE ANY ACTION)
You MUST send this notification BEFORE doing anything else when this skill is invoked.
-
Send voice notification:
curl -s -X POST http://localhost:31337/notify \ -H "Content-Type: application/json" \ -d '{"message": "Running the WORKFLOWNAME workflow in the CreateSkill skill to ACTION"}' \ > /dev/null 2>&1 & -
Output text notification:
Running the **WorkflowName** workflow in the **CreateSkill** skill to ACTION...
This is not optional. Execute this curl command immediately upon skill invocation.
CreateSkill
Complete skill development lifecycle: structure (create, validate, canonicalize) + effectiveness (test, improve, optimize triggers). Structural workflows ensure skills follow LifeOS conventions. Effectiveness workflows — inspired by Anthropic's skill-creator — ensure skills actually work and trigger reliably.
Authoritative Source
Before creating ANY skill, READ: ~/.claude/LIFEOS/DOCUMENTATION/Skills/SkillSystem.md
Canonical example to follow: any well-formed public skill in ~/.claude/skills/ (e.g. Research/SKILL.md, Daemon/SKILL.md, CreateSkill/SKILL.md itself).
Naming Convention — Public vs Private
Skill name encodes its public/private status. There are exactly two valid forms.
| Skill type | Directory format | Example | Allowed content |
|---|---|---|---|
| Public | TitleCase |
Blogging, Daemon, CreateSkill |
Templated, safe, generic, ready for public release |
| Private | _ALLCAPS (underscore prefix, all uppercase) |
_MYSKILL, _MYINBOX, _MYINFRA |
Personal-scoped function; body publishable-clean, all sensitive data referenced from LIFEOS/USER/ |
What ships with it
7 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.
- 2d ago First seen · 515 lines · 146 tokens per session scan C b30b07e32eb9
CreateSkill is a skill published in the GitHub repository danielmiessler/LifeOS (18,798 stars, last pushed 18d ago), licensed MIT. It adds 146 tokens to every session and 6,763 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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