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project-template: Skill for Claude Code

.claude/skills/changelog/SKILL.md

changelog is a skill for Claude Code from polmarza/project-template. It costs 74 tokens per session (372 once invoked), scanned A, original, MIT.

A changelog entry generator that records an important project change, the files affected, its reason, and the product requirements it completes.

In plain words
What is it for?
Use it after a significant change, including a feature, bug fix, refactor, migration, or configuration update, and when checking whether related feature and project documents also need updates.
Why use it?
It keeps a reliable history of features, fixes, refactors, migrations, and configuration changes instead of leaving their purpose unclear.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

This is polmarza/project-template's own configuration. It tells Claude Code how to work on project-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 project-template configures →

not rated 89repo +1 changed 14d ago A scan 74 tokens original MIT
View source ↗ polmarza/project-template
Reuse

Borrowing it

Nothing to install: this file belongs to polmarza/project-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/polmarza/project-template/main/.claude/skills/changelog/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/polmarza/project-template

Made for: Claude Code.

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 changelog

README.md
[![agentmods](https://agentmods.dev/badge/skills/polmarza/project-template/changelog/github.svg)](https://agentmods.dev/skills/polmarza/project-template/changelog)
Your own site
<a href="https://agentmods.dev/skills/polmarza/project-template/changelog"><img src="https://agentmods.dev/badge/skills/polmarza/project-template/changelog/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 changelog

Your own site · 80×15
<a href="https://agentmods.dev/skills/polmarza/project-template/changelog"><img src="https://agentmods.dev/badge/skills/polmarza/project-template/changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 372 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 $0.00074 $0.00372
Opus 5.5 $0.00030 $0.00149
Sonnet 5.5 $0.00015 $0.00074
Haiku 4.5 $0.00007 $0.00037

Measured 14d ago against content hash 64db6ccdd880, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

changelog 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 14d 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.

.claude/skills/changelog/SKILL.md · 17 lines

What it actually says

Crea una nueva entrada en changelog/ siguiendo el protocolo del proyecto.

  1. Usa la fecha y hora actuales para nombrar el archivo: YYYY-MM-DD_HH-MM_descripcion-breve.md
  2. Si el usuario no ha indicado qué cambio registrar, pregúntale.
  3. Rellena las tres secciones obligatorias: qué se hizo, qué archivos se modificaron, por qué.
  4. Rellena el campo Requisitos con los IDs del PRD que este cambio deja terminados (M-01, S-02…). Si es un cambio interno —refactor, tooling, documentación— escribe "ninguno"; no lo dejes en blanco.
  5. Si el cambio cierra una feature, comprueba que su ficha de docs/features/ está en estado Verificada antes de escribir la entrada.
  6. Si el cambio afecta algún documento de docs/, recuérdale al usuario que hay que actualizarlo en esta misma sesión.

Si existe la carpeta .template/ y el cambio es sobre la plantilla en sí (AGENTS.md, CLAUDE.md, docs vacíos, skills, plantillas de GitHub), escribe la entrada en .template/changelog/ en lugar de changelog/. La carpeta changelog/ se reserva para el proyecto que use la plantilla.

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. 14d ago Changed · -1 tokens per session 64db6ccdd880
  2. 29d ago First seen · 17 lines · 75 tokens per session scan A 13d2d7d0c868

Subscribe to this mod's changes

changelog is a skill published in the GitHub repository polmarza/project-template (89 stars, last pushed 15d ago), licensed MIT. It adds 74 tokens to every session and 372 once invoked, about $0.0003 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 2026-10-08.

CommitsGit and workflowWriting and docsshowcase
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