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signing-entitlements

Diagnose macOS code signing failures and entitlements mismatches from codesign data.

Updated Aug 27, 2026
Search Tags:#macos#sandbox#entitlements#gatekeeper#codesigning#notarization
One-click install
npx skills add https://github.com/oliverames/ames-claude --skill signing-entitlements
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: signing-entitlements
Source: https://github.com/oliverames/ames-claude/tree/main/plugins/build-macos-apps-codex/skills/signing-entitlements
Command: npx skills add https://github.com/oliverames/ames-claude --skill signing-entitlements

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Inspect macOS code signing, entitlements, hardened runtime, and Gatekeeper issues for macOS apps to help diagnose and fix signing-related failures.

Core Features & Use Cases

  • Inspect codesign outputs to verify signing status and entitlements.
  • Classify issues such as unsigned signatures, entitlement mismatches, sandbox conflicts, or notarization prerequisites.
  • Provide minimal, reproducible fix steps and commands to validate and repair the signing setup.

Quick Start

Use this skill when the failure smells like codesigning rather than compilation: launch refusal, missing entitlement, invalid signature, sandbox mismatch, hardened runtime confusion, or trust-policy rejection.

Frequently Asked Questions about signing-entitlements

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I diagnose macOS code signing failures when an app refuses to launch?▼

Diagnose macOS code signing failures by reading codesign and entitlements data to classify the launch refusal, verify signing status, and prescribe minimal reproducible fix steps to repair the invalid signature.

What causes entitlements mismatches and sandbox conflicts on macOS binaries?▼

Entitlements mismatches and sandbox conflicts occur when requested entitlements do not align with the applied provisioning profile or hardened runtime requirements, requiring codesign inspection to classify the mismatch and identify the missing entitlement.

How do I fix Gatekeeper rejections and notarization prerequisites for macOS apps?▼

Fix Gatekeeper rejections and notarization prerequisites by inspecting codesign outputs to ensure the hardened runtime is enabled and signatures are valid, then applying the prescribed minimal commands to validate and repair the signing setup.

Can I use this to inspect hardened runtime and codesign status on existing macOS apps?▼

Yes, you can inspect hardened runtime and codesign status on existing macOS apps and binaries by reading their codesign outputs and entitlements data to verify signing status and classify any trust-policy rejections.

Why does my macOS app fail notarization with an invalid signature or missing entitlements?▼

Notarization fails with an invalid signature or missing entitlements when the binary lacks the hardened runtime or has entitlement mismatches, which codesign inspection classifies to prescribe minimal reproducible fixes for the signing setup.

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