spec-kit-template: Skill for Claude Code

.github/skills/spec-kit-spec-style/SKILL.md

spec-kit-spec-style is a skill for Claude Code, Codex from lksnext-ai-lab/spec-kit-template. It costs 48 tokens per session (1,025 once invoked), scanned A, original, Apache-2.0.

A set of Markdown writing rules for specification documents in docs/spec/ and docs/kit/. Markdown is plain text with formatting marks used for headings, lists, tables, and code examples.

In plain words
What is it for?
Use it when editing specification Markdown to repair headings, lists, code blocks, tables, or other rendering issues without reformatting the whole document.
Why use it?
It prevents common formatting problems that make documents render incorrectly in GitHub, VS Code, or documentation websites. It also keeps changes limited to the part that needs fixing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is lksnext-ai-lab/spec-kit-template's own configuration. It tells Claude Code and Codex how to work on spec-kit-template itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything spec-kit-template configures →

Reuse

Borrowing it

Nothing to install: this file belongs to lksnext-ai-lab/spec-kit-template. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/lksnext-ai-lab/spec-kit-template/main/.github/skills/spec-kit-spec-style/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/lksnext-ai-lab/spec-kit-template

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for spec-kit-spec-style

README.md
[![agentmods](https://agentmods.dev/badge/skills/lksnext-ai-lab/spec-kit-template/spec-kit-spec-style/github.svg)](https://agentmods.dev/skills/lksnext-ai-lab/spec-kit-template/spec-kit-spec-style)
Your own site
<a href="https://agentmods.dev/skills/lksnext-ai-lab/spec-kit-template/spec-kit-spec-style"><img src="https://agentmods.dev/badge/skills/lksnext-ai-lab/spec-kit-template/spec-kit-spec-style/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for spec-kit-spec-style

Your own site · 80×15
<a href="https://agentmods.dev/skills/lksnext-ai-lab/spec-kit-template/spec-kit-spec-style"><img src="https://agentmods.dev/badge/skills/lksnext-ai-lab/spec-kit-template/spec-kit-spec-style.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,025 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00048 $0.01025
Opus 5.5 $0.00019 $0.00410
Sonnet 5.5 $0.00010 $0.00205
Haiku 4.5 $0.00005 $0.00103

Measured 2mo ago against content hash b83458816556, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

spec-kit-spec-style scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/skills/spec-kit-spec-style/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SKILL — spec-style (Markdown robusto, mínimos cambios)

Principio rector

Fix local, no reformat global.
Solo corrige el fragmento que causa mala lectura/render o provoca errores típicos (listas pegadas, fences rotos, tablas inválidas). Evita “embellecer” documentos enteros.

Alcance

  • Aplica a ediciones Markdown en:
    • docs/spec/** (principal)
    • docs/kit/** (cuando se edita documentación del kit)

No-objetivos

  • No reescritura por estilo si el Markdown ya renderiza bien.
  • No normalización masiva de espaciados, tablas o listas si no hay beneficio claro.

Reglas duras (robustez)

1) Encabezados con separación mínima

  • Debe haber 1 línea en blanco después de cualquier encabezado #..####.
  • Debe haber 1 línea en blanco antes de un encabezado (salvo que sea la primera línea del archivo).

✅

## Sección

Texto.

❌

## Sección
Texto.

2) Listas separadas de párrafos

  • Si una lista va después de un párrafo → 1 línea en blanco antes.
  • Si tras una lista viene un párrafo/encabezado → 1 línea en blanco después.

✅

Texto previo.

- A
- B

Texto posterior.

3) Fences correctos y estables

  • Usar fences … para código.
  • Debe haber 1 línea en blanco antes y después del bloque (fuera de listas).
  • Si el fence está dentro de una lista, indentar el fence y su contenido con 4 espacios por nivel de lista.

✅ Dentro de lista:

- Ejemplo:

    ```json
    { "a": 1 }
    ```

Excepción: no “normalizar” espacios dentro de fences. El contenido del bloque se respeta.

4) Tablas válidas

  • El número de columnas debe ser consistente en cabecera/separador/filas.
  • Evitar pipes | sin escapar dentro de celdas.
  • Evitar saltos de línea dentro de celdas.

Nota: el separador puede ser |---|---| o | --- | --- | (ambos válidos). Preferencia se define en “Recomendadas”.

5) Sin tabs y sin trailing spaces

  • No usar tabuladores.
  • Evitar espacios al final de línea.

Read the full file on GitHub · 144 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 144 lines · 48 tokens per session scan A b83458816556

Subscribe to this mod's changes

spec-kit-spec-style is a skill published in the GitHub repository lksnext-ai-lab/spec-kit-template (5 stars, last pushed 8mo ago), licensed Apache-2.0. It adds 48 tokens to every session and 1,025 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

spec-kit-spec-style compared with skills from other repositories

spec-kit-spec-style next to 6 skills from other repositories
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