retro

retro is a skill for Claude Code from gwonvibe/vibe-coding-skills. It costs 48 tokens per session (1,653 once invoked), scanned A, original, no licence file.

A project retrospective tool that uses session notes and the Git log, which records changes made to a code project. It sorts lessons into shared knowledge and project-specific knowledge for archiving.

In plain words
What is it for?
Creating retrospectives after projects or work sessions and preserving lessons learned.
Why use it?
It turns scattered notes and development history into a record that can be reused later.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the vibe-coding-skills plugin — 23 skills, 12 agents shipped together

Good fit Creating retrospectives after projects or work sessions and preserving lessons learned.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gwonvibe/vibe-coding-skills/retro
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add gwonvibe/vibe-coding-skills --skill retro
Clone the repo
git clone --depth 1 https://github.com/gwonvibe/vibe-coding-skills

Made for: Claude Code.

Or install vibe-coding-skills, the plugin that ships this one along with the rest of its 23 skills, 12 agents.

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 retro

README.md
[![agentmods](https://agentmods.dev/badge/skills/gwonvibe/vibe-coding-skills/retro.svg)](https://agentmods.dev/skills/gwonvibe/vibe-coding-skills/retro)
Your own site
<a href="https://agentmods.dev/skills/gwonvibe/vibe-coding-skills/retro"><img src="https://agentmods.dev/badge/skills/gwonvibe/vibe-coding-skills/retro.svg" alt="Measured on agentmods" 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 1,653 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 unknown 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 $0.01653
Opus 5 $0.00024 $0.00826
Sonnet 5 $0.00010 $0.00331
Haiku 4.5 $0.00005 $0.00165

Measured 8d ago against content hash e71777f63fe7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

retro 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 8d 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.

skills/retro/SKILL.md · 201 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 8d ago First seen · 201 lines · 48 tokens per session scan A e71777f63fe7

Subscribe to this mod's changes

retro is a skill published in the GitHub repository gwonvibe/vibe-coding-skills (11 stars, last pushed 4mo ago), with no licence file. It adds 48 tokens to every session and 1,653 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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