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Agent skill

Rebuild Launcher

by spiculedata in spiculedata/saiku

Rebuild and restart the Saiku launcher fat-JAR after changing saiku-ui or Java code, without shipping stale UI bundles or breaking the running JVM.

Apache-2.0Auto-check passedDocuments & Office

Install Rebuild Launcher

skills CLI
$ npx skills add spiculedata/saiku --skill rebuild-launcher -a claude-code

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

GitHub CLI
$ gh skill install spiculedata/saiku rebuild-launcher --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/spiculedata/saiku.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/rebuild-launcher .claude/skills/rebuild-launcher && 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/

Facts

Skill name
rebuild-launcher
GitHub stars
1.3k
Token cost
~467 tokens
SKILL.md length
145 words
Files
1
Skills in repo
2
Repo updated
First seen
Licence
Apache-2.0

At a glance

Rebuild and restart the Saiku launcher fat-JAR after changing saiku-ui or Java code, without shipping stale UI bundles or breaking the running JVM.

  • Works in 4 steps: Stop any running launcher first. Its JVM… → Clean the webapp and launcher modules.… → Build the fat-JAR. This also runs npm ci… → …
  • Restart Saiku locally
  • Calls mvn, npm and java; needs SAIKU_ADMIN_PASSWORD
  • A UI change doesnt show up in the launcher

What it does

Rebuild Launcher is an agent skill from spiculedata/saiku. Rebuild and restart the Saiku launcher fat-JAR after changing saiku-ui or Java code, without shipping stale UI bundles or breaking the running JVM. Use when asked to run, rebuild, or restart Saiku locally, or when a UI change "doesn't show up" in the launcher.

Its SKILL.md is about 470 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 Documents & Office, covering Markdown. It works with Java and Model Context Protocol. The repository describes itself as: Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite. The licence is Apache-2.0.

When your agent uses it

  • Restart Saiku locally
  • A UI change doesnt show up in the launcher

Example prompts

  • “t show up”
  • “/rebuild-launcher”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Stop any running launcher first. Its JVM holds the fat-JAR open. mvn clean deletes it, and Mondrian's Janino ServiceLoader then fails with…
  2. Clean the webapp and launcher modules. The war overlay never purges old hashed SvelteKit bundles (_app/immutable/....js), so an…
  3. Build the fat-JAR. This also runs npm ci + npm run build for saiku-ui through the frontend plugin.
  4. Run it.

What it can do on your machine

Read from SKILL.md and the folder at commit 6653a0f. 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

    Shell commands in SKILL.md call:

    • mvn
    • npm
    • java

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • SAIKU_ADMIN_PASSWORD

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Rebuild Launcher loads about 467 tokens when it runs. Until then it costs about 69 tokens; SKILL.md has 145 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~69
When it runs · the whole SKILL.md, loaded when a task matches
~467

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

The full file from spiculedata/saiku at commit 6653a0f, republished under its Apache-2.0 licence (© spiculedata). 145 words, ~467 tokens.

Download SKILL.mdSave it as .claude/skills/rebuild-launcher/SKILL.md (or your agent's skills folder).
name
rebuild-launcher
description
Rebuild and restart the Saiku launcher fat-JAR after changing saiku-ui or Java code, without shipping stale UI bundles or breaking the running JVM. Use when asked to run, rebuild, or restart Saiku locally, or when a UI change "doesn't show up" in the launcher.

Rebuild the launcher

Two traps make a naive mvn package go wrong here; this sequence avoids both.

  1. Stop any running launcher first. Its JVM holds the fat-JAR open. mvn clean deletes it, and Mondrian's Janino ServiceLoader then fails with NoSuchFileException, so every MDX discover/query returns HTTP 500 until you restart.
    bash
    pkill -f 'saiku-launcher/target/saiku-.*\.jar' || true
  2. Clean the webapp and launcher modules. The war overlay never purges old hashed SvelteKit bundles (_app/immutable/...<hash>.js), so an incremental package ships old and new side by side.
    bash
    mvn -pl saiku-webapp,saiku-launcher clean
  3. Build the fat-JAR. This also runs npm ci + npm run build for saiku-ui through the frontend plugin.
    bash
    mvn -pl saiku-launcher -am -Dmaven.test.skip=true package
  4. Run it.
    bash
    VERSION=$(mvn -q -DforceStdout help:evaluate -Dexpression=project.version)
SAIKU_ALLOW_DEFAULT_ADMIN=true java -jar saiku-launcher/target/saiku-$VERSION.jar serve --port 8080 --home ./saiku-home
    UI at http://localhost:8080/ui/, REST at http://localhost:8080/rest/saiku/api/, login admin / admin. Without SAIKU_ALLOW_DEFAULT_ADMIN=true (or SAIKU_DEMO=true, or a real SAIKU_ADMIN_PASSWORD) the launcher refuses to boot on the default password.

If you changed the FoodMart seed schema (saiku-launcher/src/main/resources/seed/FoodMart4.xml), an existing saiku-home won't pick it up. Delete saiku-home/data/FoodMart4.xml before relaunching.

© spiculedata, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .claude/skills/rebuild-launcher of spiculedata/saiku.

Open the folder on GitHubat commit 6653a0f

Compare with similar skills

Rebuild Launcher 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.

Rebuild Launcher compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Rebuild Launcher this skillspiculedata/saiku1.3k—~467Automated safety check: PassApache-2.0
PullmdAeternaLabsHQ/pullmd486—~2.6kAutomated safety check: PassAGPL-3.0
MineruNebutra/MinerU-Skill123—~1.4kAutomated safety check: PassMIT
Web Article Extractordongbeixiaohuo/writing-agent434—~740Automated safety check: PassMIT
Publish To Mdpagemaypaz/md.page116—~610Automated safety check: NotesMIT
Jpagecode2rich/jpage175—~3.2kAutomated safety check: NotesMIT

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Works with

Categories

Questions about Rebuild Launcher

What does Rebuild Launcher do?

Rebuild and restart the Saiku launcher fat-JAR after changing saiku-ui or Java code, without shipping stale UI bundles or breaking the running JVM. Rebuild Launcher is an agent skill from spiculedata/saiku. Rebuild and restart the Saiku launcher fat-JAR after changing saiku-ui or Java code, without shipping stale UI bundles or breaking the running JVM.

When should I use Rebuild Launcher?

Rebuild Launcher fits situations like: restart Saiku locally; A UI change doesnt show up in the launcher.

How do I install Rebuild Launcher in Claude Code?

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

How do I install Rebuild Launcher in Codex?

Run `npx skills add spiculedata/saiku --skill rebuild-launcher -a codex`. Or copy the skill folder (.claude/skills/rebuild-launcher in spiculedata/saiku) into .agents/skills/rebuild-launcher in your project. Codex loads it when a task matches its description.

Can I use Rebuild Launcher 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 spiculedata/saiku --skill rebuild-launcher -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rebuild-launcher, .gemini/skills/rebuild-launcher, .github/skills/rebuild-launcher and .opencode/skills/rebuild-launcher in your project.

What does Rebuild Launcher need to run?

Going by SKILL.md and its folder, Rebuild Launcher needs the command-line tools its instructions call (mvn, npm and java) and credentials named SAIKU_ADMIN_PASSWORD.

Does Rebuild Launcher access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Rebuild Launcher 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 Rebuild Launcher use?

Rebuild Launcher is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Rebuild Launcher use?

About 467 tokens (SKILL.md is roughly 1.9k 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 Rebuild Launcher?

Skills that share tags, products or a category with Rebuild Launcher: Pullmd (AeternaLabsHQ/pullmd, 486 stars), Mineru (Nebutra/MinerU-Skill, 123 stars), Web Article Extractor (dongbeixiaohuo/writing-agent, 434 stars) and Publish To Mdpage (maypaz/md.page, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Rebuild Launcher?

spiculedata (a GitHub organization) maintains it in spiculedata/saiku, which has 1,329 GitHub stars. The repository holds 2 skills in this directory. The repository was last updated on October 11, 2026.

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