tanstack-db

tanstack-db is a skill for Claude Code from oakoss/agent-skills. It costs 57 tokens per session (1,368 once invoked), scanned A, original, no licence file.

A reactive database that runs in the browser and updates connected user interfaces when local data changes. It supports live queries, optimistic changes, local-first applications, and data synchronisation engines.

In plain words
What is it for?
Use it to build local-first interfaces, query browser data reactively, apply optimistic updates, and connect local data to a synchronisation system.
Why use it?
It helps applications stay responsive by showing local changes immediately while data is synchronised. Live queries reduce the need to manually refresh screens when records change.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit Use it to build local-first interfaces, query browser data reactively, apply optimistic updates, and connect local data to a synchronisation system.

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Install with agentmods
npx agentmods add skills/oakoss/agent-skills/tanstack-db
Install

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.

Any agent
npx skills add oakoss/agent-skills --skill tanstack-db
Clone the repo
git clone --depth 1 https://github.com/oakoss/agent-skills

Made for: Claude Code.

Wrote 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.

agentmods badge for tanstack-db

README.md
[![agentmods](https://agentmods.dev/badge/skills/oakoss/agent-skills/tanstack-db/github.svg)](https://agentmods.dev/skills/oakoss/agent-skills/tanstack-db)
Your own site
<a href="https://agentmods.dev/skills/oakoss/agent-skills/tanstack-db"><img src="https://agentmods.dev/badge/skills/oakoss/agent-skills/tanstack-db/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.

agentmods 80×15 button for tanstack-db

Your own site · 80×15
<a href="https://agentmods.dev/skills/oakoss/agent-skills/tanstack-db"><img src="https://agentmods.dev/badge/skills/oakoss/agent-skills/tanstack-db.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,368 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.01368
Opus 5 $0.00028 $0.00684
Sonnet 5 $0.00011 $0.00274
Haiku 4.5 $0.00006 $0.00137

Measured 9d ago against content hash cac3353c66a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

tanstack-db 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 9d 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.

skills/tanstack-db/SKILL.md · 84 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

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.

Changes

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.

  1. 9d ago First seen · 84 lines · 57 tokens per session scan A cac3353c66a2

Subscribe to this mod's changes

tanstack-db is a skill published in the GitHub repository oakoss/agent-skills (15 stars, last pushed 26d ago), with no licence file. It adds 57 tokens to every session and 1,368 once invoked, about $0.0003 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 2026-09-03.

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