Archive Experiments
marin-community/marin
Archive explicitly named legacy experiment files by publishing a dated tag and canonical issue breadcrumbs.
Use at the end of every experiment run, before archiving the session transcript, to record decisions, deviations, iterations, and verification honestly.
Custom licenceAuto-check passed
Install Writing Design Rationale
$ npx skills add lukapiskorec/craftbot --skill writing-design-rationale -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install lukapiskorec/craftbot writing-design-rationale --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/lukapiskorec/craftbot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/writing-design-rationale .claude/skills/writing-design-rationale && 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 "writing-design-rationale" agent skill from https://github.com/lukapiskorec/craftbot/tree/main/skills/writing-design-rationale into .claude/skills/writing-design-rationale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-design-rationale", 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/lukapiskorec/craftbot/tree/main/skills/writing-design-rationaleType 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 lukapiskorec/craftbot --skill writing-design-rationale -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install lukapiskorec/craftbot writing-design-rationale --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lukapiskorec/craftbot.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/writing-design-rationale .agents/skills/writing-design-rationale && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "writing-design-rationale" agent skill from https://github.com/lukapiskorec/craftbot/tree/main/skills/writing-design-rationale into .agents/skills/writing-design-rationale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-design-rationale", 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 lukapiskorec/craftbot --skill writing-design-rationale -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install lukapiskorec/craftbot writing-design-rationale --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lukapiskorec/craftbot.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/writing-design-rationale .cursor/skills/writing-design-rationale && 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 "writing-design-rationale" agent skill from https://github.com/lukapiskorec/craftbot/tree/main/skills/writing-design-rationale into .cursor/skills/writing-design-rationale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-design-rationale", 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/lukapiskorec/craftbot.git --path skills/writing-design-rationale--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 lukapiskorec/craftbot --skill writing-design-rationale -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install lukapiskorec/craftbot writing-design-rationale --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lukapiskorec/craftbot.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/writing-design-rationale .gemini/skills/writing-design-rationale && 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 "writing-design-rationale" agent skill from https://github.com/lukapiskorec/craftbot/tree/main/skills/writing-design-rationale into .gemini/skills/writing-design-rationale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-design-rationale", 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 lukapiskorec/craftbot writing-design-rationaleInstalls 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 lukapiskorec/craftbot --skill writing-design-rationale -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/lukapiskorec/craftbot.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/writing-design-rationale .github/skills/writing-design-rationale && 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 "writing-design-rationale" agent skill from https://github.com/lukapiskorec/craftbot/tree/main/skills/writing-design-rationale into .github/skills/writing-design-rationale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-design-rationale", 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 lukapiskorec/craftbot --skill writing-design-rationale -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install lukapiskorec/craftbot writing-design-rationale --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lukapiskorec/craftbot.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/writing-design-rationale .opencode/skills/writing-design-rationale && 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 "writing-design-rationale" agent skill from https://github.com/lukapiskorec/craftbot/tree/main/skills/writing-design-rationale into .opencode/skills/writing-design-rationale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-design-rationale", 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
writing-design-rationale- GitHub stars
- 154
- Token cost
- ~1.1k tokens
- SKILL.md length
- 645 words
- Files
- 1
- Skills in repo
- 13
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Use at the end of every experiment run, before archiving the session transcript, to record decisions, deviations, iterations, and verification honestly.
- Works in 4 steps: About this document: which agent and… → Brief as understood: the task in one… → How to run / outputs: render command,… → …
- SKILL.md covers Overview, Template, What must be recorded and Style rules, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Writing Design Rationale is an agent skill from lukapiskorec/craftbot. Use at the end of every experiment run, before archiving the session transcript, to record decisions, deviations, iterations, and verification honestly.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: CraftBot is an architect AI agent. It interprets design briefs, grounds its thinking in domain knowledge through ingesting documents, images and other references, and outputs…
Example prompts
- “/writing-design-rationale”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- About this document: which agent and model wrote it (name, model id and the mechanical model of the Inspectors, Researchers and Runner…
- Brief as understood: the task in one paragraph as the run read it, written before any source is opened and kept verbatim from the first…
- How to run / outputs: render command, the named view list, the collection tree, member and overlap counts
- Reading the inputs: the source-to-rule-to-number mapping table, then deliberate deviations
What it can do on your machine
Read from SKILL.md and the folder at commit 2c9715b. 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
Writing Design Rationale loads about 1.1k tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 645 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 645 words (~1,117 tokens).
“The rationale is the mechanism by which a run's knowledge survives. Session transcripts drop the model's private reasoning; only messages, tool calls and results remain. So the rationale is written at the end of the run while the reasoning is…”
- name
- writing-design-rationale
Files
Just SKILL.md in skills/writing-design-rationale of lukapiskorec/craftbot.
Open the folder on GitHubat commit 2c9715b
Compare with similar skills
Writing Design Rationale 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 |
|---|---|---|---|---|---|---|
| Writing Design Rationale this skilllukapiskorec/craftbot | 154 | — | ~1.1k | Automated safety check: Pass | Custom licence | |
| Archive Experimentsmarin-community/marin | 3.9k | — | ~878 | Automated safety check: Pass | Apache-2.0 | |
| Finding ExperimentsPostHog/posthog | 40k | — | ~826 | Automated safety check: Pass | Custom licence | |
| ExperimentsArize-ai/phoenix | 12k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Scroll Experiencesickn33/agentic-awesome-skills | 47k | 2 repos | ~534 | Automated safety check: Pass | MIT | |
| Webgl Experiencenexu-io/open-design | 100k | — | ~903 | Automated safety check: Pass | Apache-2.0 |
Similar skills
- Official
Finding Experiments
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Resolves a PostHog experiment reference from natural language to a concrete experiment ID by browsing experiment-list (not feature-flag tools), with disambiguation when multiple experiments match.
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Run, read, and compare dataset-backed experiments to find evidence that a prompt or pipeline is improving.
Scroll Experience
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Expert in building immersive scroll-driven experiences - parallax storytelling, scroll animations, interactive narratives, and cinematic web experiences.
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Questions about Writing Design Rationale
What does Writing Design Rationale do?
Use at the end of every experiment run, before archiving the session transcript, to record decisions, deviations, iterations, and verification honestly. Writing Design Rationale is an agent skill from lukapiskorec/craftbot. Use at the end of every experiment run, before archiving the session transcript, to record decisions, deviations, iterations, and verification honestly.
How do I install Writing Design Rationale in Claude Code?
Run `npx skills add lukapiskorec/craftbot --skill writing-design-rationale -a claude-code`. Or copy the skill folder (skills/writing-design-rationale in lukapiskorec/craftbot) into .claude/skills/writing-design-rationale in your project. Claude Code loads it when a task matches its description.
How do I install Writing Design Rationale in Codex?
Run `npx skills add lukapiskorec/craftbot --skill writing-design-rationale -a codex`. Or copy the skill folder (skills/writing-design-rationale in lukapiskorec/craftbot) into .agents/skills/writing-design-rationale in your project. Codex loads it when a task matches its description.
Can I use Writing Design Rationale 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 lukapiskorec/craftbot --skill writing-design-rationale -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/writing-design-rationale, .gemini/skills/writing-design-rationale, .github/skills/writing-design-rationale and .opencode/skills/writing-design-rationale in your project.
What does Writing Design Rationale need to run?
SKILL.md names no scripts, command-line tools or credentials: Writing Design Rationale is instructions for the agent only.
Does Writing Design Rationale 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 Writing Design Rationale 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 Writing Design Rationale use?
Writing Design Rationale has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Writing Design Rationale use?
About 1.1k tokens (SKILL.md is roughly 4.5k 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 Writing Design Rationale?
Skills that share tags, products or a category with Writing Design Rationale: Archive Experiments (marin-community/marin, 3.9k stars), Finding Experiments (PostHog/posthog, 40k stars), Experiments (Arize-ai/phoenix, 12k stars) and Scroll Experience (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Writing Design Rationale?
lukapiskorec (a GitHub user) maintains it in lukapiskorec/craftbot, which has 154 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on September 30, 2026.
Source: lukapiskorec/craftbot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.