Agent skill

Retro

Sprint retrospective — analyzes git velocity, commit patterns, test health, and shipping cadence.

MITAuto-check: notesProduct & Project Management

Install Retro

skills CLI

$ npx skills add Houseofmvps/ultraship --skill retro -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Houseofmvps/ultraship retro --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Houseofmvps/ultraship.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/retro .claude/skills/retro && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "retro" agent skill from https://github.com/Houseofmvps/ultraship/tree/main/skills/retro into .claude/skills/retro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retro", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Houseofmvps/ultraship/tree/main/skills/retro

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Houseofmvps/ultraship --skill retro -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Houseofmvps/ultraship retro --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Houseofmvps/ultraship.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/retro .agents/skills/retro && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "retro" agent skill from https://github.com/Houseofmvps/ultraship/tree/main/skills/retro into .agents/skills/retro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retro", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Houseofmvps/ultraship --skill retro -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Houseofmvps/ultraship retro --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Houseofmvps/ultraship.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/retro .cursor/skills/retro && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "retro" agent skill from https://github.com/Houseofmvps/ultraship/tree/main/skills/retro into .cursor/skills/retro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retro", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Houseofmvps/ultraship.git --path skills/retro

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Houseofmvps/ultraship --skill retro -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Houseofmvps/ultraship retro --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Houseofmvps/ultraship.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/retro .gemini/skills/retro && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "retro" agent skill from https://github.com/Houseofmvps/ultraship/tree/main/skills/retro into .gemini/skills/retro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retro", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Houseofmvps/ultraship retro

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Houseofmvps/ultraship --skill retro -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Houseofmvps/ultraship.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/retro .github/skills/retro && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "retro" agent skill from https://github.com/Houseofmvps/ultraship/tree/main/skills/retro into .github/skills/retro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retro", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Houseofmvps/ultraship --skill retro -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Houseofmvps/ultraship retro --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Houseofmvps/ultraship.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/retro .opencode/skills/retro && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "retro" agent skill from https://github.com/Houseofmvps/ultraship/tree/main/skills/retro into .opencode/skills/retro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retro", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: retro
GitHub stars: 123
Token cost: ~882 tokens
SKILL.md length: 308 words
Files: 1
Skills in repo: 28
Repo updated: Jul 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Sprint retrospective — analyzes git velocity, commit patterns, test health, and shipping cadence.

Works in 4 steps: Gather Data → Present the Retrospective → Insights & Recommendations → …
Wants to reflect on progress
SKILL.md covers Process, Multi-Project Mode and Output
Calls node

What it does

Retro is an agent skill from Houseofmvps/ultraship. Sprint retrospective — analyzes git velocity, commit patterns, test health, and shipping cadence. Use after a sprint, at the end of the week, or when the user wants to reflect on progress.

Its SKILL.md is about 880 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Product & Project Management, covering Retrospectives. It works with Git. The repository describes itself as: "ULTRASHIP" Claude Code plugin — 39 skills, 33 tools, 11 agents for ship-ready workflows: planning, review, pentesting, safety guardrails, canary monitoring, SEO/AI-readiness… The licence is MIT.

When your agent uses it

Wants to reflect on progress
Tasks that involve Retrospectives

Example prompts

“/retro”

Requirements

Pre-approved tools (allowed-tools): Bash, Read, Grep, Glob

Workflow steps

4 steps, taken from the step headings in SKILL.md.

Gather Data
Present the Retrospective
Insights & Recommendations
Cross-Reference with Learnings (Optional)

What it can do on your machine

Read from SKILL.md and the folder at commit ed232cb. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Bash
- Read
- Grep
- Glob
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- node
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Retro loads about 882 tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 308 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~49
When it runs · the whole SKILL.md, loaded when a task matches: ~882

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Bash, Read, Grep, Glob
```

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Houseofmvps/ultraship at commit ed232cb, republished under its MIT licence (© Houseofmvps). 308 words, ~882 tokens.

Download SKILL.mdSave it as .claude/skills/retro/SKILL.md (or your agent's skills folder).

name: retro
description: Sprint retrospective — analyzes git velocity, commit patterns, test health, and shipping cadence. Use after a sprint, at the end of the week, or when the user wants to reflect on progress.
allowed-tools: Bash, Read, Grep, Glob
argument-hint: <days-back>

Sprint Retrospective

Retrospectives turn shipping data into actionable insights. This skill analyzes your git history, commit patterns, test health, and shipping velocity to surface what's working and what needs attention.

Announce at start: "I'm running a sprint retrospective on this project."

Process

Step 1: Gather Data

Run the retro analyzer:

bash

node ${CLAUDE_PLUGIN_ROOT}/tools/retro-analyzer.mjs <project-directory> --days 7

For custom date ranges:

bash

node ${CLAUDE_PLUGIN_ROOT}/tools/retro-analyzer.mjs <project-directory> --since 2026-03-24

Step 2: Present the Retrospective

Format the data as a clear, actionable report:

Velocity Report Card

+===========================================+
|     S P R I N T   R E T R O              |
+===========================================+
|  Period        Mar 24 – Mar 31           |
|  Commits       47                         |
|  Lines Added   2,341                      |
|  Lines Removed 892                        |
|  Net Change    +1,449                     |
|  Authors       1                          |
+===========================================+

Commit Breakdown

Show the distribution of commit types (features, fixes, refactors, tests, docs, chores) as a visual breakdown. Highlight the feature-to-fix ratio — a healthy project ships more features than fixes.

Hot Files

List the most-changed files. Files with excessive churn may need to be split into smaller modules.

Test Health

Number of test files
Passing / failing tests
Whether a test script exists
Recommendation if tests are absent or failing

Shipping Cadence

Peak day of week (when do you ship most?)
Peak hour (when are you most productive?)
Tags/releases in this period

Step 3: Insights & Recommendations

Based on the data, surface:

What went well:

High velocity periods
Good deletion-to-addition ratio (code hygiene)
Consistent shipping cadence
Test coverage improvements

What needs attention:

Fix-heavy sprints (more fixes than features = quality debt)
Hot files that churn excessively
Missing or failing tests
Uneven shipping cadence (feast-or-famine pattern)

Action items:

Concrete, specific recommendations with clear next steps
Link to relevant Ultraship skills (e.g., "Use /tdd for the untested module")

Step 4: Cross-Reference with Learnings (Optional)

If the project has learnings (from /learn), search for relevant context:

bash

node ${CLAUDE_PLUGIN_ROOT}/tools/learnings-manager.mjs search --query "sprint"
node ${CLAUDE_PLUGIN_ROOT}/tools/learnings-manager.mjs search --query "debugging"

Incorporate past learnings into recommendations.

Multi-Project Mode

For founders running multiple projects, run retros across all of them:

bash

node ${CLAUDE_PLUGIN_ROOT}/tools/retro-analyzer.mjs ~/project-a --days 7
node ${CLAUDE_PLUGIN_ROOT}/tools/retro-analyzer.mjs ~/project-b --days 7

Compare velocity across projects to understand where time is being spent.

Output

The retrospective should be concise and actionable — not a data dump. Lead with insights, support with data. The goal is to help the user ship better next week.

Files

Just SKILL.md in skills/retro of Houseofmvps/ultraship.

Open the folder on GitHubat commit ed232cb

Compare with similar skills

Retro next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Retro compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Retro this skillHouseofmvps/ultraship	123	—	~882	Automated safety check: Notes	MIT	3 mo ago
Weekly Engineering Retrogarrytan/gstack	136k	—	~2.4k	Automated safety check: Pass	MIT	today
Dough Story Wrap Upterryyin/lizard	2.6k	—	~4.3k	Automated safety check: Pass	Custom licence	2 days ago
Gitea Workflowjwynia/agent-skills	169	—	~3.8k	Automated safety check: Pass	MIT	7 mo ago
Retrokoolamusic/claudefiles	130	—	~2.8k	Automated safety check: Pass	MIT	today
ObituaryFactory-AI/cursed-plugins	106	—	~1.2k	Automated safety check: Notes	Apache-2.0	6 mo ago

Similar skills

Weekly Engineering Retro
garrytan/gstack
Builds a weekly engineering retrospective from git history: commit counts, per-person contributions, work patterns and code quality numbers over a chosen window.
136k GitHub stars~2.4k tokensUpdated today
Product & Project ManagementAuto-check passed
Dough Story Wrap Up
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Closes one completed feature story, bounded retrospective correction, or context-only planless execution using available execution context.
2.6k GitHub stars~4.3k tokensUpdated 2 days ago
Product & Project ManagementAuto-check passed
Gitea Workflow
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Orchestrate agile development workflows for Gitea repositories using the tea CLI.
169 GitHub stars~3.8k tokensUpdated 7 mo ago
Product & Project ManagementAuto-check passed
Retro
koolamusic/claudefiles
A skill your agent uses when a user completes a phase, sprint, milestone, or meaningful unit of work and needs a retrospective.
130 GitHub stars~2.8k tokensUpdated today
Product & Project ManagementAuto-check passed
Obituary
Factory-AI/cursed-plugins
Retrospective on deprecated and end-of-life code. An agent skill from Factory-AI/cursed-plugins.
106 GitHub stars~1.2k tokensUpdated 6 mo ago
Product & Project ManagementAuto-check: notes
Collab Proof
alirezarezvani/claude-skills
A skill your agent uses when you want to understand what Claude contributed vs what you drove in a session.
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Questions about Retro

What does Retro do?

Sprint retrospective — analyzes git velocity, commit patterns, test health, and shipping cadence. Retro is an agent skill from Houseofmvps/ultraship. Sprint retrospective — analyzes git velocity, commit patterns, test health, and shipping cadence.

When should I use Retro?

Retro fits situations like: wants to reflect on progress; tasks that involve Retrospectives.

How do I install Retro in Claude Code?

Run `npx skills add Houseofmvps/ultraship --skill retro -a claude-code`. Or copy the skill folder (skills/retro in Houseofmvps/ultraship) into .claude/skills/retro in your project. Claude Code loads it when a task matches its description.

How do I install Retro in Codex?

Run `npx skills add Houseofmvps/ultraship --skill retro -a codex`. Or copy the skill folder (skills/retro in Houseofmvps/ultraship) into .agents/skills/retro in your project. Codex loads it when a task matches its description.

Can I use Retro in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Houseofmvps/ultraship --skill retro -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/retro, .gemini/skills/retro, .github/skills/retro and .opencode/skills/retro in your project.

What does Retro need to run?

Going by SKILL.md and its folder, Retro needs the command-line tools its instructions call (node). Its frontmatter pre-approves these tools: Bash, Read, Grep, Glob.

Does Retro access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Retro safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Retro use?

Retro is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Retro use?

About 882 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Retro?

Skills that share tags, products or a category with Retro: Weekly Engineering Retro (garrytan/gstack, 136k stars), Dough Story Wrap Up (terryyin/lizard, 2.6k stars), Gitea Workflow (jwynia/agent-skills, 169 stars) and Retro (koolamusic/claudefiles, 130 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Retro?

Houseofmvps (a GitHub user) maintains it in Houseofmvps/ultraship, which has 123 GitHub stars. The repository holds 28 skills in this directory. The repository was last updated on July 8, 2026.

Source: Houseofmvps/ultraship on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Retro

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Sprint Retrospective

Process

Step 1: Gather Data

Step 2: Present the Retrospective

Velocity Report Card

Commit Breakdown

Hot Files

Test Health

Shipping Cadence

Step 3: Insights & Recommendations

Step 4: Cross-Reference with Learnings (Optional)

Multi-Project Mode

Output

Files

Compare with similar skills

Similar skills

More from Houseofmvps/ultraship

Related

Questions about Retro