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expo-api-routes SKILL.md skillA

expo-api-routes from coco-research/coco is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add coco-research/coco/expo-api-routes@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: coco-research/coco
Path: skills/expo-api-routes/SKILL.md
Versions recorded: 3
Latest version: v1.0.0, committed Sep 14, 2026
First version recorded: Apr 26, 2026
Size: 8,889 bytes
Repository stars: 629
License: Apache-2.0

Use when adding server-side API routes to an Expo Router app (+api.ts files) for secrets, database access, third-party proxies, webhooks, CORS, or EAS Hosting deploys. Covers file routing, env vars, and Cloudflare Workers limits.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

## When to Use API Routes

Use API routes when you need:

- **Server-side secrets** — API keys, database credentials, or tokens that must never reach the client
- **Database operations** — Direct database queries that shouldn't be exposed
- **Third-party API proxies** — Hide API keys when calling external services (OpenAI, Stripe, etc.)
- **Server-side validation** — Validate data before database writes
- **Webhook endpoints** — Receive callbacks from services like Stripe or GitHub
- **Rate limiting** — Control access at the server level
- **Heavy computation** — Offload processing that would be slow on mobile

## When NOT to Use API Routes

Avoid API routes when:

- **Data is already public** — Use direct fetch to public APIs instead
- **No secrets required** — Static data or client-safe operations
- **Real-time updates needed** — Use WebSockets or services like Supabase Realtime
- **Simple CRUD** — Consider Firebase, Supabase, or Convex for managed backends
- **File uploads** — Use direct-to-storage uploads (S3 presigned URLs, Cloudflare R2)
- **Authentication only** — Use Clerk, Auth0, or Firebase Auth instead

## File Structure
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add coco-research/coco/expo-api-routes@sha256:ae4c08ec1d22941c

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_nmf3eaudtq5kgdnl.svg)](https://markdownregistry.com/a/art_nmf3eaudtq5kgdnl)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Apr 26, 2026 and Sep 14, 2026, about one every 71 days.

version	committed	commit	size	audit
v1.0.0 latest	2026-09-14	e75f220	8,889 B	A	view · diff
v1.0.0	2026-08-02	1479e32	8,724 B	A	view · diff
v1.0.0	2026-04-26	d53cc6c	8,704 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (8889 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

coco-research/coco · 629 stars · license Apache-2.0 · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_nmf3eaudtq5kgdnl
GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/expo-api-routes
GET https://markdownregistry.com/api/v1/blob/ae4c08ec1d22941c8eacd8a069d8f399f59516e2adc7e5341c2314efc8f8b7ef

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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