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trellis-before-dev

◉ 12.9k↓ 12.9k↺ 2026.07.20

@mindfold-ai/trellis-before-devDiscovers 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.

Dev ToolsAuthor: Mindfold AI
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nametrellis-before-dev
descriptionDiscovers 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.

Trellis Before Dev

trellis-before-dev

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
  1. Discover packages and their spec layers: ```bash python3 ./.trellis/scripts/get_context.py --mode packages ```
  1. 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
  1. Read the spec index for each relevant module: ```bash cat .trellis/spec/<package>/<layer>/index.md ``` Follow the "Pre-Development Checklist" section in the index.
  1. 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.
  1. Always read shared guides: ```bash cat .trellis/spec/guides/index.md ```
  1. Understand the coding standards and patterns you need to follow, then proceed with your development plan.

This step is mandatory before writing any code.

Install

Ships with Trellis. After trellis init, this skill is available under .agents/skills/trellis-before-dev/ (and platform skill dirs).

npm install -g @mindfoldhq/trellis@latest
trellis init -u your-name

Source: mindfold-ai/Trellis · .agents/skills/trellis-before-dev