---
title: "Skill Developer Guide - Air Market"
description: "Writing a skill is one thing; getting it to switch on at the right moment is another. This covers creating and maintaining Claude Code skills, from how one is put together to what makes it trigger an…"
canonical: "https://airmarket.ai/app/skill-developer"
---

[Air Market](/) / [Developer Tools](/category/devtools) / Skill Developer Guide

Skill by [BuildingAI](/@bidingcc)

# Skill Developer Guide

Build a skill that actually fires when you meant it to

## What this does

Writing a skill is one thing; getting it to switch on at the right moment is another. This covers creating and maintaining Claude Code skills, from how one is put together to what makes it trigger and what to check when it does not. Reach for it when you are making a skill or chasing one that stays silent.

### Top 3 things it does for you

- Create a new Claude Code skill
- Work out why a skill is not activating
- Set up the triggers that decide when it runs

## Information

**Skill Developer Guide at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [BuildingAI](/@bidingcc) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 54 KB |
| Licence | Apache-2.0 |
| Repository | [BidingCC/BuildingAI](https://github.com/BidingCC/BuildingAI/tree/968c0a4da56c84d74a3744bf7526ee198d56b812/skills/skill-developer) |
| GitHub stars | 1,866 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Skill Developer Guide and flagged nothing. AIR's verdict: **safe**.

**What Skill Developer Guide's check was run against**

|  |  |
| --- | --- |
| Commit | 968c0a4da56c84d74a3744bf7526ee198d56b812 |
| Content hash | 8f170297440cd11f10de7e1e0f119d8c8f358e94489cbeef216a44bbcb6f2fb5 |
| Files read | [Browse the files at this exact commit](https://github.com/BidingCC/BuildingAI/blob/968c0a4da56c84d74a3744bf7526ee198d56b812/skills/skill-developer/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Skill Developer Guide](/security/skill-developer)

## About Skill Developer Guide

For creating and managing Claude Code skills in line with Anthropic best practices. It applies when you are making a new skill, editing skill-rules.json, working out trigger patterns, working with hooks, debugging why a skill is not activating, or implementing progressive disclosure.

The ground it covers includes skill structure and YAML frontmatter, the trigger types - keywords, intent patterns, file paths, content patterns - the enforcement levels of block, suggest and warn, hook mechanisms including UserPromptSubmit and PreToolUse, session tracking, and the rule about file length.

## What's inside

- SKILL.md - instructions
- ADVANCED.md - reference
- HOOK_MECHANISMS.md - reference
- PATTERNS_LIBRARY.md - reference
- SKILL_RULES_REFERENCE.md - reference
- TRIGGER_TYPES.md - reference
- TROUBLESHOOTING.md - reference

## Questions

### Is Skill Developer Guide safe to install?

AIR scanned this exact version of Skill Developer Guide and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 968c0a4da56c, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/skill-developer.

### How do I install Skill Developer Guide?

Open https://airmarket.ai/app/skill-developer on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/BidingCC/BuildingAI/tree/968c0a4da56c84d74a3744bf7526ee198d56b812/skills/skill-developer. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by BuildingAI](/@bidingcc)

---

Canonical URL: <https://airmarket.ai/app/skill-developer>