LifeOS is an AI-assisted personal operating system that records a person’s goals, values, context, and current situation to help move them toward a desired future state. It supports work such as building applications, starting businesses, and creative projects. Its catalogue entries extend the system through skills, hooks, agents, and commands.
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 danielmiessler/LifeOS --skill profilegit clone --depth 1 https://github.com/danielmiessler/LifeOSWrote 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/danielmiessler/lifeos/profile)<a href="https://agentmods.dev/skills/danielmiessler/lifeos/profile"><img src="https://agentmods.dev/badge/skills/danielmiessler/lifeos/profile/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/danielmiessler/lifeos/profile"><img src="https://agentmods.dev/badge/skills/danielmiessler/lifeos/profile.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 | $0.00108 | $0.01377 |
| Opus 5.5 | $0.00043 | $0.00551 |
| Sonnet 5.5 | $0.00022 | $0.00275 |
| Haiku 4.5 | $0.00011 | $0.00138 |
Grade A, and why
Profile 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 yesterday.
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 — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Profile Skill
Views, edits, or resets the LifeOS User Model — the PRINCIPAL_IDENTITY.md file that holds persistent identity context and loads at the start of every session through the CLAUDE.md @-import. Three operations: View shows the current model, Edit updates its sections, and Clear resets it to a blank template (it never deletes the file). The Algorithm reads it when writing ISCs and choosing capabilities, and other skills read it for personalization, so this skill keeps that context visible and current in one place.
Ideal State
- The identity file always exists and loads at startup; Clear replaces its contents and never deletes it.
- Every change touches only what the principal asked for, leaves the Memory-System Proposals queue to the memory curation loop, and bumps
last_updatedbut neverlast_reviewed, so the freshness grade stays honest. - Clear never overwrites the file without a verified backup and the principal's explicit yes.
- The file holds context about who the principal is, never executable directives (those belong in CLAUDE.md or the system prompt).
- Off-limits categories (health, relationship, financial details) enter the file only when the principal explicitly asks for them.
Intent Routing
| Intent | Trigger | File |
|---|---|---|
| View | "profile", "show profile", "view profile", "who am I", "my profile" | Intents/View.md |
| Edit | "edit profile", "update profile", "change profile" | Intents/Edit.md |
| Clear | "clear profile", "delete profile", "reset profile" | Intents/Clear.md |
| File | Read when |
|---|---|
Setup.md |
first-time setup, a worked example of the identity file on made-up values, and the read-only proof commands |
Data & Config
The User Model lives at ~/.claude/LIFEOS/USER/PRINCIPAL/PRINCIPAL_IDENTITY.md (in a standard install LIFEOS/USER is a symlink to ~/.config/LIFEOS/USER, which may be its own private git repo) as markdown with the lifeos-freshness-v1 frontmatter (LIFEOS/DOCUMENTATION/Freshness/FreshnessSystem.md):
What ships with it
4 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.
- yesterday First seen · 91 lines · 108 tokens per session scan A 0a41a8711876
Profile is a skill published in the GitHub repository danielmiessler/LifeOS (19,631 stars, last pushed today), licensed MIT. It adds 108 tokens to every session and 1,377 once invoked, about $0.0004 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 2026-10-28.
Other skills, from other repositories
wiki-dashboard
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session-compact
AI DevKit · Compact a historical AI coding session with Jev when context is long, work is handed off or resumed, or durable continuation facts and memory candidates need extraction.
company-brain
Your team's shared, AI-ready knowledge base — people, companies, meetings, SOPs, and decisions structured so an agent can answer on your team's behalf. Team-scope sibling to second-brain — personal notes go there, not here. Modes — capture, compile (wiki pages + INDEX.md), query (trust-weighted, saved to outputs/)…
claude-reflect
Self-learning system that captures corrections during sessions and reminds users to run /reflect to update CLAUDE.md. Use when discussing learnings, corrections, or when the user mentions remembering something for future sessions.
context-shunt
Offload large / multi-file reads to a cheap worker model so raw files never enter Claude's context (token savings).
cortex-profile
View and manage your cognitive profile — how you think, work patterns, blind spots, and cross-domain connections. Use when the user says 'show my profile', 'how do I work', 'what are my patterns', 'cognitive style', 'blind spots', 'methodology', or at the start of a session to load context. Also use 'rebuild profile'…