# Using Skill Library

> Use this skill at the start of any session to load the skill inventory, apply trigger rules, and establish the required planning workflow.

- Skill: `mcj-coder/using-skill-library` (Agent Skill)
- Install (CLI): `npx skillmds@latest add mcj-coder/using-skill-library`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mcj-coder/using-skill-library/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: mcj-coder (https://skillmd.com/u/mcj-coder)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/mcj-coder/using-skill-library

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# Using Skill Library

## Intent

Ensure every session starts with the correct skill inventory, priority rules,
and workflow discipline.

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## When to Use

- At the start of any session before taking action.
- Before asking clarifying questions.

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## Precondition Failure Signal

- Work begins without loading the skills table.
- Skills are applied without checking trigger conditions.
- Planning begins without establishing the required workflow.

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## Postcondition Success Signal

- Skill front matter (name + description) is loaded from `skills/**/SKILL.md`.
- Priority and conflict rules are loaded from `docs/principles.md`.
- Relevant skills are identified and announced before acting.

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## Process

1. **Inventory**: Read each skill's front matter (`name`, `description`) from `skills/**/SKILL.md`.
2. **Principles**: Read `docs/principles.md` for priority and conflicts.
3. **Trigger Check**: Match the task to relevant skills.
4. **Announce**: State which skills apply and why.
5. **Plan**: Use `brainstorming` then `writing-plans` for multi-step work.

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## Example Test / Validation

- Session begins with an explicit list of applicable skills and a plan request.

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## Common Red Flags / Guardrail Violations

- "I'll check skills after I look around."
- Acting before announcing applied skills.
- Skipping planning because the task feels small.

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## Recommended Review Personas

- **Tech Lead** - validates scope and priority adherence.
- **Software Engineer** - validates correct skill selection.

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## Skill Priority

P2 - Consistency & Governance

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## Conflict Resolution Rules

- If skill selection is ambiguous, ask before proceeding.

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## Conceptual Dependencies

- brainstorming
- writing-plans
- documentation-as-code

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## Classification

Governance  
Core

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## Notes

This is the "session bootstrap" skill.