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/tanstack/cli/choose-ecosystem-integrationsnpx skills add TanStack/cli --skill choose-ecosystem-integrationsgit clone --depth 1 https://github.com/TanStack/cliWhat 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 | $0.00059 | $0.00918 |
| Opus 5 | $0.00030 | $0.00459 |
| Sonnet 5 | $0.00012 | $0.00184 |
| Haiku 4.5 | $0.00006 | $0.00092 |
Grade A, and why
choose-ecosystem-integrations 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 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.
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 — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This skill requires familiarity with scaffold and discovery workflows. Read create-app-scaffold and query-docs-library-metadata first.
Choose Ecosystem Integrations
Use this skill at the seam between user requirements and valid CLI integration choices.
Setup
npx @tanstack/cli ecosystem --json
npx @tanstack/cli create --list-add-ons --json
Core Patterns
Map partner intent to add-on ids explicitly
npx @tanstack/cli ecosystem --category database --json
npx @tanstack/cli create --list-add-ons --json
Inspect option surfaces before final provider choice
npx @tanstack/cli create --addon-details drizzle --json
npx @tanstack/cli create --addon-details prisma --json
Enforce one choice per exclusive category
npx @tanstack/cli create my-app \
--framework react \
--add-ons clerk,drizzle \
--deployment cloudflare \
-y
Common Mistakes
HIGH Treat ecosystem partner id as add-on id
Wrong:
npx @tanstack/cli add <partner-id-from-ecosystem>
Correct:
npx @tanstack/cli ecosystem --json
npx @tanstack/cli create --list-add-ons --json
npx @tanstack/cli add <mapped-addon-id>
ecosystem includes partners that are not directly installable add-ons, so direct reuse of partner ids can fail late in add/apply flows.
Source: tanstack ecosystem --json output + tanstack create --list-add-ons --json output
HIGH Skip addon-details before choosing provider
Wrong:
npx @tanstack/cli create my-app --add-ons prisma -y
Correct:
npx @tanstack/cli create --addon-details prisma --json
npx @tanstack/cli create my-app --add-ons prisma -y
Optionized providers can default silently, producing the wrong data-layer stack for the requested integration.
Source: tanstack create --addon-details prisma --json
HIGH Select multiple exclusive integrations together
Wrong:
npx @tanstack/cli create my-app --add-ons clerk,workos -y
Correct:
npx @tanstack/cli create my-app --add-ons clerk -y
What ships with it
3 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 · 142 lines · 59 tokens per session scan A 1b9efea8329a
choose-ecosystem-integrations is a skill published in the GitHub repository TanStack/cli (1,295 stars, last pushed 25d ago), licensed MIT. It adds 59 tokens to every session and 918 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 2026-08-30.
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