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Align check

Skill SilvrDuck/skills/skills/align-check

Use whenever the agent is about to emit any ASCII or Unicode block where characters must line up — boxes, tables, trees, columns, banners, aligned comments, terminal diagrams. Be pushy: auto-invoke proactively any time vertical alignment could matter, even if the user never asked.From its SKILL.md

Install
npx -y skills add SilvrDuck/skills --skill align-check

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • 1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

2.4 KB, as published. Nobody here has run it

align-check

You count tokens, not terminal columns, so hand-aligned layout drifts, especially once a glyph is wider than one cell. Never trust visual inspection. After producing any aligned block, verify it before presenting it.

Use

  1. Pipe the block into the checker, naming the marker that must line up (the wall char, a gutter, a separator). Paths are relative to this skill's directory:

    python3 scripts/align-check.py '│' < block.txt

    On Windows use python or the py launcher in place of python3.

  2. Read the result:

    • OK (exit 0): the symbol is at identical display columns on every line. Present it.
    • DRIFT (exit 1): the report lists each column signature and the lines that produced it. Fix padding on the outlier lines only, then re-run until OK.

  3. Present only after OK. Check each wall separately (║, then │, etc.).

What it measures

Per line it records the display column of every occurrence of the symbol, in order, as one signature (e.g. 1,40), then groups lines by signature; more than one group is drift. Widths follow Unicode: Wide/Fullwidth and emoji count as 2, the FE0F selector widens its base (▶️), combining marks and ZWJ count as 0. To check only one occurrence (e.g. the right wall), change the key = ",".join(...) line to key = str(sig[-1]).

The one rule that prevents most drift

A right wall is the only thing that must be padded to match content width, so it is where drift shows. The simplest fix is to not draw one: use an open frame with a left gutter only. Then a variable-width column has nothing downstream to push, and it renders the same whether a glyph is scored 1 cell or 2.

If you do want a closed box, keep terminal-decided glyphs out of walled columns: ✔ ✘ ⚠ and similar dingbats are spec-width-1 but some terminals render them as 2-cell emoji, so they pass the checker yet still look off. Use unambiguous emoji (✅ ⚠️ ❌, 🟢 🟡 🔴) or plain ASCII (+ - x) for status instead; both the checker and the terminal agree on those. Avoid ZWJ clusters (👨‍👩‍👧, flags, skin tones) in aligned regions entirely.

Keep looking

Skills are one crate of 627,801. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.