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codex-expo-run-actions

Wire Expo projects into the Codex app with project-local run scripts and .codex/environments/environment.toml actions. Use when the user wants the Codex app Run button, build/run actions, action buttons, or a stable Expo start/run workflow from Codex.

72

Quality

91%

Does it follow best practices?

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

93%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A tight, high-quality skill body: lean directive prose, concrete commands and exact paths, a clear five-step workflow with a validation checkpoint, and a properly structured single reference file. The only notable gap is the absence of an error-recovery feedback loop around the sanity-check step.

DimensionReasoningScore

Conciseness

The body is ~65 lean, directive lines with no explanation of concepts Claude already knows; every line instructs (paths, flags, defaults, guardrails). Matches the "lean and efficient; every token earns its place" anchor.

5 / 5

Actionability

Gives exact file paths, package-runner inference rules, every mode flag (--ios, --android, --web, --dev-client, --tunnel, --export-web), and concrete verification commands ("./script/build_and_run.sh --help"), with the full executable script and TOML examples confirmed present in the one-level reference. This is copy-paste-ready guidance covering the common cases.

5 / 5

Workflow Clarity

Five clearly sequenced steps including an explicit validation checkpoint ("run ./script/build_and_run.sh --help or a short non-server mode ... to sanity-check syntax"). Falls short of 5 because there is no error-recovery feedback loop (what to do if the sanity check or TOML parse fails), though the operation is not destructive/batch so the cap at 3 does not apply.

4 / 5

Progressive Disclosure

Well-organized sections (Workflow, References, Guardrails, Output Expectations) with a single clearly-signaled reference — references/expo-run-button-bootstrap.md — verified to exist, contain the complete script and environment.toml examples, and be one level deep with no nested .md references.

5 / 5

Total

19

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description: it states concrete actions with named artifacts, includes an explicit "Use when..." clause with natural trigger phrases, and occupies a distinct niche. Minor room to broaden trigger synonyms (Metro, dev server) and hint at the additional run modes.

DimensionReasoningScore

Specificity

Names concrete artifacts and actions — "project-local run scripts", ".codex/environments/environment.toml actions", "Run button" — which go well beyond the 1-2-action level. It stops short of 5 because it doesn't enumerate the fuller capability set (e.g. the per-platform run modes) in the description itself.

4 / 5

Completeness

Explicitly answers both: what ("Wire Expo projects into the Codex app with project-local run scripts and .codex/environments/environment.toml actions") and when ("Use when the user wants the Codex app Run button, build/run actions, action buttons, or a stable Expo start/run workflow from Codex") with concrete trigger phrases.

5 / 5

Trigger Term Quality

Natural phrases a user would say are present: "Codex app Run button", "build/run actions", "action buttons", "Expo start/run workflow". A few natural terms are missing (e.g. "Metro", "dev server", "Expo Go"), keeping it below comprehensive synonym/extension coverage.

4 / 5

Distinctiveness Conflict Risk

Clear niche — wiring Expo projects specifically into the Codex app — with distinct triggers unlikely to fire for other skills. Matches the anchor for a clear niche with minimal conflict risk.

5 / 5

Total

18

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository

openai/plugins

Path

plugins/expo/skills/codex-expo-run-actions/SKILL.md

Reviewed

Table of Contents

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