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/geminilight/mindos/mindos-originalnpx skills add GeminiLight/MindOS --skill mindos-originalgit clone --depth 1 https://github.com/GeminiLight/MindOSWrote 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/geminilight/mindos/mindos-original)<a href="https://agentmods.dev/skills/geminilight/mindos/mindos-original"><img src="https://agentmods.dev/badge/skills/geminilight/mindos/mindos-original.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 5.1 | $0.00157 | $0.01743 |
| Opus 5 | $0.00078 | $0.00872 |
| Sonnet 5 | $0.00031 | $0.00349 |
| Haiku 4.5 | $0.00016 | $0.00174 |
Grade A, and why
mindos 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 6d 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 — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MindOS Skill
CLI commands
Use mindos file <subcommand> for all knowledge base operations. Add --json for structured output.
| Operation | Command |
|---|---|
| List files | mindos file list |
| Read file | mindos file read <path> |
| Write/overwrite | mindos file write <path> --content "..." |
| Create new file | mindos file create <path> --content "..." |
| Append to file | mindos file append <path> --content "..." |
| Edit section | mindos file edit-section <path> -H "## Heading" --content "..." |
| Insert after heading | mindos file insert-heading <path> -H "## Heading" --content "..." |
| Append CSV row | mindos file append-csv <path> --row "col1,col2,col3" |
| Delete file | mindos file delete <path> |
| Rename/move | mindos file rename <old> <new> |
| Search | mindos search "query" |
| Backlinks | mindos file backlinks <path> |
| Recent files | mindos file recent --limit 10 |
| Git history | mindos file history <path> |
| List spaces | mindos space list |
| Create space | mindos space create "name" |
MCP users: If you only have MCP tools (
mindos_*), use them directly — they are self-describing via their schemas. Prefer CLI when available (lower token cost).
CLI setup
npm install -g @geminilight/mindos
# Remote mode: mindos config set url http://<IP>:<PORT> && mindos config set authToken <token>
Rules
- Bootstrap first — list the KB tree to understand structure before searching or writing.
- Default to read-only. Only write when the user explicitly asks to save, record, organize, or edit. Lookup / summarize / quote = no writes.
- Rule precedence (highest wins): user's current-turn instruction →
.mindos/user-preferences.md→ nearest directoryINSTRUCTION.md→ rootINSTRUCTION.md→ this SKILL's defaults. - Multi-file edits require a plan first. Present the full change list; execute only after approval.
- After create/delete/move/rename → sync affected READMEs automatically.
- Read before write. Always read a file before overwriting it. Never write based on assumptions.
What ships with it
5 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.
- 6d ago First seen · 166 lines · 157 tokens per session scan A 3707a1d8b3e4
mindos is a skill published in the GitHub repository GeminiLight/MindOS (666 stars, last pushed 2d ago), licensed MIT. It adds 157 tokens to every session and 1,743 once invoked, about $0.0008 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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