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.
A skill your agent uses when ending a working session to capture lessons learned, when the user corrects Claude or asks to redo work, when the user expresses frustration with output quality, or when…
Install Retrospective
$ npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kenneth-liao/ai-launchpad-marketplace retrospective --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/personal-assistant/skills/retrospective .claude/skills/retrospective && rm -rf skills-srcUse ~/.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/
Install the "retrospective" agent skill from https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospective into .claude/skills/retrospective/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retrospective", 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 install https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospectiveType 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.
$ npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kenneth-liao/ai-launchpad-marketplace retrospective --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/personal-assistant/skills/retrospective .agents/skills/retrospective && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "retrospective" agent skill from https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospective into .agents/skills/retrospective/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retrospective", 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.
$ npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kenneth-liao/ai-launchpad-marketplace retrospective --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/personal-assistant/skills/retrospective .cursor/skills/retrospective && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "retrospective" agent skill from https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospective into .cursor/skills/retrospective/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retrospective", 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 https://github.com/kenneth-liao/ai-launchpad-marketplace.git --path personal-assistant/skills/retrospective--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kenneth-liao/ai-launchpad-marketplace retrospective --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/personal-assistant/skills/retrospective .gemini/skills/retrospective && rm -rf skills-srcUse ~/.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/
Install the "retrospective" agent skill from https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospective into .gemini/skills/retrospective/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retrospective", 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.
$ gh skill install kenneth-liao/ai-launchpad-marketplace retrospectiveInstalls 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).
$ npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/personal-assistant/skills/retrospective .github/skills/retrospective && rm -rf skills-srcUse ~/.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/
Install the "retrospective" agent skill from https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospective into .github/skills/retrospective/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retrospective", 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.
$ npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install kenneth-liao/ai-launchpad-marketplace retrospective --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/personal-assistant/skills/retrospective .opencode/skills/retrospective && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "retrospective" agent skill from https://github.com/kenneth-liao/ai-launchpad-marketplace/tree/main/personal-assistant/skills/retrospective into .opencode/skills/retrospective/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "retrospective", 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
retrospective- GitHub stars
- 126
- Token cost
- ~2.9k tokens
- SKILL.md length
- 1,253 words
- Files
- 2
- Skills in repo
- 26
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses when ending a working session to capture lessons learned, when the user corrects Claude or asks to redo work, when the user expresses frustration with output quality, or when…
- Works in 8 steps: Scan conversation for friction → Classify and route each friction moment → Prioritize findings → …
- Ending a working session to capture lessons learned
- SKILL.md covers Overview, When to Use, Two Modes and Common Mistakes and Why They…, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Retrospective is an agent skill from kenneth-liao/ai-launchpad-marketplace. Use when ending a working session to capture lessons learned, when the user corrects Claude or asks to redo work, when the user expresses frustration with output quality, or when user triggers /retrospective
Its SKILL.md is about 2.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `evals/evals.json`).
It sits in Product & Project Management, covering Retrospectives.
When your agent uses it
- Ending a working session to capture lessons learned
- The user corrects Claude
- Asks to redo work
- The user expresses frustration with output quality
Example prompts
- “/retrospective”
Workflow steps
8 steps, taken from the step headings in SKILL.md.
- Scan conversation for friction
- Classify and route each friction moment
- Prioritize findings
- Present findings interactively
- Check existing files before writing
- Write confirmed findings
- Verify applied proposals
- Journal and summary
What it can do on your machine
Read from SKILL.md and the folder at commit 04b93d6. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
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
Retrospective loads about 2.9k tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 1,253 words of instructions outside code blocks.
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 passed
The automated check found no risky patterns in SKILL.md.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,253 words (~2,865 tokens).
“A meta skill that helps Elle actively improve over time. Captures friction from working sessions, routes findings to the correct context file, and closes the loop on past proposals.”
- name
- retrospective
Files
SKILL.md and 1 other file in personal-assistant/skills/retrospective of kenneth-liao/ai-launchpad-marketplace.
- SKILL.md
- evals/evals.json
Open the folder on GitHubat commit 04b93d6
Compare with similar skills
Retrospective 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Retrospective this skillkenneth-liao/ai-launchpad-marketplace | 126 | — | ~2.9k | Automated safety check: Pass | None | |
| Weekly Engineering Retrogarrytan/gstack | 136k | — | ~2.4k | Automated safety check: Pass | MIT | |
| Dough Execute Planterryyin/lizard | 2.5k | — | ~4.3k | Automated safety check: Pass | Custom licence | |
| Oral Paper SkillAdkid-Zephyr/oral-paper-skill | 357 | — | ~1.9k | Automated safety check: Pass | None | |
| Deck Retroasheshgoplani/agent-deck | 1.1k | — | ~1.8k | Automated safety check: Pass | MIT | |
| Dough Execution Retrospectiveterryyin/lizard | 2.5k | — | ~4k | Automated safety check: Pass | Custom licence |
Similar skills
Dough Execute Plan
terryyin/lizard
Executes one selected story or bounded retrospective correction through an executable plan, or one authorized planless slice from a selected simple story or a contextual instruction, with…
Oral Paper Skill
Adkid-Zephyr/oral-paper-skill
Help authors learn from exemplary ICLR, ICML, and NeurIPS papers through source-linked manuscript comparisons, concrete writing and experiment suggestions, and guided reflection.
Deck Retro
asheshgoplani/agent-deck
Run a fully local agent-deck retrospective over the user's own transcripts, Recall index and logs.
Dough Execution Retrospective
terryyin/lizard
Reviews planned, completed planless quick, or quick-to-planned execution against original intent, aggregate commits, current whole-product architecture, and tests, including after cleanup.
Criticism Self Criticism
HughYau/qiushi-skill
批评与自我批评：在工作完成、阶段验收、收到批评或同类错误反复出现时，对成果和过程做诚实、具体、基于事实的审视，输出可执行的改进项，并处理外来批评而不辩解。触发信号包括 review、复盘、审查、"帮我看看有没有问题"、"你确定吗"；任务刚开始或只是单步查询时不触发。
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Related
Categories
Questions about Retrospective
What does Retrospective do?
A skill your agent uses when ending a working session to capture lessons learned, when the user corrects Claude or asks to redo work, when the user expresses frustration with output quality, or when…. Retrospective is an agent skill from kenneth-liao/ai-launchpad-marketplace.
When should I use Retrospective?
Retrospective fits situations like: ending a working session to capture lessons learned; the user corrects Claude; asks to redo work; the user expresses frustration with output quality.
How do I install Retrospective in Claude Code?
Run `npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a claude-code`. Or copy the skill folder (personal-assistant/skills/retrospective in kenneth-liao/ai-launchpad-marketplace) into .claude/skills/retrospective in your project. Claude Code loads it when a task matches its description.
How do I install Retrospective in Codex?
Run `npx skills add kenneth-liao/ai-launchpad-marketplace --skill retrospective -a codex`. Or copy the skill folder (personal-assistant/skills/retrospective in kenneth-liao/ai-launchpad-marketplace) into .agents/skills/retrospective in your project. Codex loads it when a task matches its description.
Can I use Retrospective 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 kenneth-liao/ai-launchpad-marketplace --skill retrospective -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/retrospective, .gemini/skills/retrospective, .github/skills/retrospective and .opencode/skills/retrospective in your project.
What does Retrospective need to run?
SKILL.md names no scripts, command-line tools or credentials: Retrospective is instructions for the agent only.
Does Retrospective 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 Retrospective safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Retrospective use?
No licence was found for Retrospective or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Retrospective use?
About 2.9k tokens (SKILL.md is roughly 11k 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 Retrospective?
Skills that share tags, products or a category with Retrospective: Weekly Engineering Retro (garrytan/gstack, 136k stars), Dough Execute Plan (terryyin/lizard, 2.5k stars), Oral Paper Skill (Adkid-Zephyr/oral-paper-skill, 357 stars) and Deck Retro (asheshgoplani/agent-deck, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Retrospective?
kenneth-liao (a GitHub user) maintains it in kenneth-liao/ai-launchpad-marketplace, which has 126 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on March 23, 2026.
Source: kenneth-liao/ai-launchpad-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.