preflight

💎 Merge the shiny TailwindCSS base styles into your CSS-in-JS project!

AI image print preflight checker for DPI, print size, bleed, CMYK color risk, and print shop handoff.

Normalize.css with a kick for styled-components CSS-in-JS library

Claude Code preflight checker — estimate token cost and risk before running expensive tasks

🎯 OpenClaw plugin: turn vague requests into execution-ready briefs. Ambiguity scan, plan stress test, brief generator. No API key needed.

CORS Doctor: find why the browser blocks your request (origin, credentials, preflight, headers) and get the exact server headers to set. Free, client-side.

Pre-flight check for Midnight Network projects: catches version mismatches, duplicate ledgers, broken configs before silent debugging.

Read-only preflight assistant that turns unfamiliar setup instructions into beginner-friendly review notes.

Preflight your GitHub Actions workflow for npm OIDC trusted publishing before the misleading 404/ENEEDAUTH at release time.

Machine-readable preflight for software agents: pass the next unsent tool call; receive ≤2 revision-pinned failure cards or typed UNKNOWN. Offline/zero-install; never authorizes execution.

Unit27 public field kit for deterministic product-launch preflight checks.

DeepSeek Harness plugin conflict checker: pre-flight duplicate loader-entry-id detection + optional real startup smoke test (CLI + Web GUI tab).

Pre-deployment preflight checks for ServiceNow — validate a target instance and your changes before you ship. Ships as a CLI and a library.

Machine-readable discovery surface for AUX transaction preflight

Chrome DevTools panel that surfaces every CORS preflight, models the browser preflight cache, and flags redundant preflights costing you latency. Manifest V3, loaded unpacked, zero permissions.

CLI checker for API CORS policy documentation quality

Validate a WebAuthn Relying Party's rpId, origins, and .well-known/webauthn config — catch the classic 'passkey works on localhost but not production' bugs. CLI + GitHub Action.

Deterministic, local-only diagnostics for Node.js package-manager, workspace, version-policy, and GitHub Actions install-command metadata.

Audit API CORS documentation and code for allowed origins, methods, headers, credentials, preflight behavior, browser errors, and local development guidance.