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tmdytmdy/CodeDeck/.agents/skills/trellis-before-dev/SKILL.md

trellis-before-dev

Skill2 starsChanged 26 days agoMITView on GitHub

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.

21 other projects use a version of this, 19 of them edited.

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The file

We split this skill into the rules it gives an agent

2 rules. 2 are common, 0 are distinctive, and 0 are very specific to this project.

  • 2

    Common

    Most of the 19 edited versions we read keep these.

  • 0

    Distinctive

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Common:

    Read the relevant development guidelines before starting your task.

    line 6
  2. Common:

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

    line 29

“Common” is measured: kept by at least 6 in 10 of the 19 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

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:
    python ./.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.

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