1. Habit
  2. Skills
  3. Weed skill
juxt · 3K installs

Weed skill
Runs by itself, weekly drift check.

Spec and code stay aligned.

Install the Weed skill and make it a habit: follow https://gethabit.dev/skills/juxt/weed.md

  1. 1Copy
  2. 2Paste into Claude Code, Codex or Cursor
  3. 3It runs by itself

3K installs518 starsMIT licenceSource on GitHub ↗

Weed

by juxt · 3K installs

The skill

The weed skill compares Allium specifications with implementation code, finds where they diverged, classifies each divergence and helps resolve it, for teams that keep specs and code in sync.

Only when you ask.

The habit

Spec and code stay aligned.

↻ Runs by itselfweekly drift check

How the habit works.
You don't have to.

Three questionsWhen does it start? How does it check its work? What does it remember?

01

It starts by itself

weekly drift check. Runs in Claude Code routine or GitHub Actions.

  • ↻ weekly drift check
  • 0 7 * * 1

02

It checks its work

check + you classify. If a check fails, it tells you.

  • ✓allium check passes on all specs
  • ✓every divergence names a spec file:line and a code file:line
  • ✓every divergence has one of four classifications
  • ✓tests pass after any code update

03

It remembers

divergence log. The next run reads it first: divergences still open from the last run.

loops/allium-spec-drift-loop/log.md

One run, step by step.
Then it stops.

Stop ruleStops after one check pass over all specs per run; no edits in check mode.

  1. 01

    Start up

    Your agent reads the language reference and the .allium files, then runs allium check.

  2. 02

    Read the code

    It finds the implementation for each entity, rule and trigger.

  3. 03

    Compare both ways

    It flags what the spec says but code skips, and what code does that the spec omits.

  4. 04

    Check the process

    It checks transition reachability, trigger coverage, undeclared transitions and invariant enforcement.

  5. 05

    Analyse

    If available, allium analyse finds process gaps the comparison misses.

  6. 06

    Classify

    Each divergence gets a proposed class, and you confirm or override it.

What it may do.
Nothing more.

Safe by defaultIt writes only in its own folder and asks you before anything goes out.

Is it for you?
Use it when it fits.

Quick checkRead both lists. If the left one sounds like you, the Weed skill helps.

Use it when

  • ✓ auditing spec drift
  • ✓ checking whether code matches the spec
  • ✓ syncing a spec with current code

Skip it when

  • – no spec exists yet
  • – writing new spec behaviour

Questions

Weed skill, answered.

Does it fix things?

Only in update spec or update code mode. The default check mode changes nothing.

What are the classes?

Spec bug, code bug, aspirational design or intentional gap.

How do I install the Weed skill?

Copy the prompt at the top into your agent. It installs the skill from juxt/allium and sets up the habit. Or run npx skills add juxt/allium --skill weed.

Is the Weed skill free?

Yes. It is published under MIT. Habit is free too.

Weed. Now as a habit.

Install the Weed skill and make it a habit: follow https://gethabit.dev/skills/juxt/weed.md

  • Free
  • No account
  • Undo in one line

All juxt skills →More code skills →

Works in

  • Claude Code
  • Codex
  • Cursor
  • ChatGPT
  • Claude app

Made by juxt, published under MIT. Habit links to the original and never changes it. Is this your skill?

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