rn-eas-build-submit-update

rn-eas-build-submit-update is a skill for Claude Code, Codex from lukedj78/dev-flow. It costs 157 tokens per session (908 once invoked), scanned A, original, MIT.

A set of rules for building, submitting, and sending updates to Expo and React Native apps with EAS, Expo’s cloud service for app builds and releases.

In plain words
What is it for?
Use it to configure development, preview, and production builds, manage credentials, submit apps to the Apple and Google stores, and release eligible over-the-air updates.
Why use it?
It helps distinguish full app builds from JavaScript-only updates and keeps testing channels and signing credentials separate.

Skill for Claude CodeCodex

Part of the dev-flow plugin — 46 skills shipped together

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.

agentmods
npx agentmods add skills/lukedj78/dev-flow/rn-eas-build-submit-update
Any agent
npx skills add lukedj78/dev-flow --skill rn-eas-build-submit-update
Clone the repo
git clone --depth 1 https://github.com/lukedj78/dev-flow

Made for: Claude Code, Codex.

Or install dev-flow, the plugin that ships this one along with the rest of its 46 skills.

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 rn-eas-build-submit-update

README.md
[![agentmods](https://agentmods.dev/badge/skills/lukedj78/dev-flow/rn-eas-build-submit-update.svg)](https://agentmods.dev/skills/lukedj78/dev-flow/rn-eas-build-submit-update)
Your own site
<a href="https://agentmods.dev/skills/lukedj78/dev-flow/rn-eas-build-submit-update"><img src="https://agentmods.dev/badge/skills/lukedj78/dev-flow/rn-eas-build-submit-update.svg" alt="Measured on agentmods" height="20"></a>
Per session 157 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 908 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00157 $0.00908
Opus 5 $0.00078 $0.00454
Sonnet 5 $0.00031 $0.00182
Haiku 4.5 $0.00016 $0.00091

Measured 5d ago against content hash 2f4793c44374, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rn-eas-build-submit-update 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.

rn-eas-build-submit-update/SKILL.md · 41 lines

How it starts

The opening of the file, as written. The whole thing — 41 lines — stays where its author put it; the contents beside it link to each section on GitHub.

rn-eas-build-submit-update — guardrail for EAS Build / Submit / Update / Workflows

The 5 rules (non-negotiable)

  1. 3 profiles in eas.json: development (dev client, internal), preview (TestFlight / Play Internal — test on real devices), production (the store). NEVER ship from a profile not pre-tested in preview.
  2. Credentials server-side via eas credentials. NEVER commit .p12, .p8, *.keystore, *.jks, or google-services.json for production accounts. EAS holds them; local Apple/Google CLI never touches them.
  3. OTA only for JS-only changes. If the diff touches app.json config plugins, native modules, or anything that would change prebuild output → it's a new build, not an Update.
  4. Channels separate environments. preview channel for QA, production channel for end users. Ship updates to preview first, promote to production only after smoke-test.
  5. expo-updates config in app.json is the source of truth for runtime version (runtimeVersion: { policy: "appVersion" } or "sdkVersion"). Mismatched runtime versions = OTAs ignored.

Quick decision tree

  • "Build, Submit, or Update — which do I need now?" → references/decision-tree.md
  • "How do I write the eas.json profiles?" → references/eas-json.md
  • "How do credentials work — where does the cert live?" → references/credentials.md
  • "How do I set up EAS Workflows for CI?" → references/workflows.md
  • "Did the build/OTA I just shipped actually land OK — do I need a hotfix or rollback?" → rn-eas-deploy/references/observability.md (EAS Observe for build performance, EAS Update Insights for OTA rollout health)

Common anti-patterns (NEVER do)

  • ❌ Committing certificates / keystores to git.
  • eas build --profile production without ever having built --profile preview for that commit.
  • eas update --channel production without --branch <name> and without testing on preview channel first.
  • ❌ Updating app.json config plugins and shipping via OTA — fails silently or crashes on user devices.
  • ❌ Bumping version in app.json without also bumping ios.buildNumber / android.versionCode — store reject.
  • expo-updates with default runtimeVersion (none) — OTA gets applied to incompatible native builds → crash.
  • ❌ Promoting an update to the production channel and never checking eas channel:insights / eas update:insights afterwards — see rn-eas-deploy/references/observability.md.

Read the full file on GitHub · 41 lines

Files

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.

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. 5d ago First seen · 41 lines · 157 tokens per session scan A 2f4793c44374

Subscribe to this mod's changes

rn-eas-build-submit-update is a skill published in the GitHub repository lukedj78/dev-flow (6 stars, last pushed today), licensed MIT. It adds 157 tokens to every session and 908 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 2026-08-31.

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