trellis-before-dev

SkillProductivity

Discovers and injects project-specific coding guidelines from .trellis/spec/ before implementation begins. Reads spec indexes, pre-development checklists, and shared thinking guides for the target package. Use when starting a new coding task, before writing any code, switching to a different package, or needing to refresh project conventions and standards.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the trellis-before-dev skill

What this skill tells your AI

The instructions your AI receives, as published by leonyoah/seatunnelx in .agents/skills/trellis-before-dev/SKILL.md and read by ahel’s review.

Read the relevant development guidelines before starting your task.

Execute these steps:

  1. Read current task artifacts:

    • prd.md for requirements and acceptance criteria
    • design.md if present for technical design
    • implement.md if present for execution order and validation plan
  2. Discover packages and their spec layers:

    python3 ./.trellis/scripts/get_context.py --mode packages
    
  3. Identify which specs apply to your task based on:

    • Which package you're modifying (e.g., cli/, docs-site/)
    • What type of work (backend, frontend, unit-test, docs, etc.)
    • Any spec/research paths referenced by the task artifacts
  4. Read the spec index for each relevant module:

    cat .trellis/spec/<package>/<layer>/index.md
    

    Follow the "Pre-Development Checklist" section in the index.

  5. Read the specific guideline files listed in the Pre-Development Checklist that are relevant to your task. The index is NOT the goal — it points you to the actual guideline files (e.g., error-handling.md, conventions.md, mock-strategies.md). Read those files to understand the coding standards and patterns.

  6. Always read shared guides:

    cat .trellis/spec/guides/index.md
    
  7. Understand the coding standards and patterns you need to follow, then proceed with your development plan.

This step is mandatory before writing any code.

Signals

GitHub stars
30
Forks
8
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
trellis-before-dev-leonyoah
Source
github.com/leonyoah/seatunnelx