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/rexleimo/aios/aios-project-systemnpx skills add rexleimo/aios --skill aios-project-systemgit clone --depth 1 https://github.com/rexleimo/aiosWrote 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/rexleimo/aios/aios-project-system)<a href="https://agentmods.dev/skills/rexleimo/aios/aios-project-system"><img src="https://agentmods.dev/badge/skills/rexleimo/aios/aios-project-system.svg" alt="Measured on agentmods" 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 | $0.00034 | $0.00800 |
| Opus 5 | $0.00017 | $0.00400 |
| Sonnet 5 | $0.00007 | $0.00160 |
| Haiku 4.5 | $0.00003 | $0.00080 |
Grade A, and why
aios-project-system 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 5d 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 — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AIOS Project System
Overview
Use this skill as the repository map for aios. It explains where state lives, how automation actually runs, and which files are authoritative before you edit tasks, workflows, or browser operations.
This skill is a map, not a router. For task routing, use aios-workflow-router; execute only the Provider selected by the current Rex Capability Command.
Core Topology
CLAUDE.md/AGENTS.md/GEMINI.md: per-client project-level behavior contract and architecture overview (each client loads its own instruction file).skill-sources/*/SKILL.md: canonical skill sources (edit here, never edit generated copies).- Generated repo-local skills per client:
.codex/skills,.claude/skills,.gemini/skills,.opencode/skills,.agents/skills— emitted fromskill-sources/viaconfig/skills-sync-manifest.json. - Agent promotion and workflow enablement are evidence-gated: use
agents smokefor core-risk rollout evidence, thenskill verify-trainingto block changed skills until SkillOpt training is accepted. scripts/lib/specs/*.json: runtime specifications and limits.tasks/{pending,done,failed}: task queue and outcomes.scripts/run-browser-use-mcp.sh: default browser MCP launcher (bridges toai-browser-book/mcp-browser-use).mcp-server/: legacy Playwright MCP implementation retained for compatibility workflows.docs/plans/: design, implementation, and postmortem documents.
Runtime Truths (Do Not Skip)
- The primary browser MCP server label is
mcp-browser-use; do not add compatibility aliases for old browser MCP names. mcp-server/src/index.tsstill exposes Playwrightbrowser_*tools, but treat that path as legacy/compatibility.- If both
mcp-browser-useandchrome-devtoolsare available, usemcp-browser-usefor normal browser automation and reservechrome-devtoolsfor debugging only. - For interactive runs, explicitly prefer
chrome.launch_cdp { port: 9222, user_data_dir: '~/.chrome-cdp-profile' }, thenbrowser.connect_cdp. - Repo-local skill
SKILL.mdfiles can drift from site UI; treat them as runbooks that require live verification. - Prefer
page.extract_text/page.get_htmlevidence before usingpage.screenshot. - Repo-local discoverable skills are generated under each client's skill root (
.codex/skills,.claude/skills,.gemini/skills,.opencode/skills,.agents/skills) fromskill-sources/— do not create ad-hoc skill roots such as.baoyu-skills/*/SKILL.md..baoyu-skills/is extension-config territory, not a skill root. Edit canonical sources underskill-sources/, then run skill sync. - Keep safety constraints aligned with
scripts/lib/specsand theskill-constraintsskill.
What ships with it
2 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.
- 5d ago First seen · 46 lines · 34 tokens per session scan A 6b8eb532664c
aios-project-system is a skill published in the GitHub repository rexleimo/aios (52 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 800 once invoked, about $0.0002 per session on Opus 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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