Agent skill

Bmad Builder

by aj-geddes in aj-geddes/claude-code-bmad-skills

Meta-skill for scaffolding and validating custom PLANNING/ORCHESTRATION skills within the BMAD Planning & Orchestrator plugin.

Custom licenceAuto-check: notesDevelopment

Install Bmad Builder

skills CLI
$ npx skills add aj-geddes/claude-code-bmad-skills --skill bmad-builder -a claude-code

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

GitHub CLI
$ gh skill install aj-geddes/claude-code-bmad-skills bmad-builder --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/aj-geddes/claude-code-bmad-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/bmad-planning-orchestrator/skills/bmad-builder .claude/skills/bmad-builder && 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
bmad-builder
GitHub stars
488
Token cost
~1.9k tokens
SKILL.md length
736 words
Files
5 (incl. scripts)
Skills in repo
20
Repo updated
First seen
Licence
Custom licence

At a glance

Meta-skill for scaffolding and validating custom PLANNING/ORCHESTRATION skills within the BMAD Planning & Orchestrator plugin.

  • Works in 4 steps: Gather requirements (use TodoWrite to… → Run the scaffold script to create the… → Fill the SKILL.md using the skill template → …
  • The user says create a skill
  • SKILL.md covers Scope (PLAN, never build), Three intents, Scope law for new skills and BMAD fidelity reminders, plus 4 more sections
  • Runs Shell scripts from its folder; calls bash

What it does

Bmad Builder is an agent skill from aj-geddes/claude-code-bmad-skills. Meta-skill for scaffolding and validating custom PLANNING/ORCHESTRATION skills within the BMAD Planning & Orchestrator plugin. Produces the full skill directory: SKILL.md, scripts, and templates — all pre-targeted at this plugin's path conventions. Includes a scope-violation checker so newly created skills never drift into dev/lint/build/coverage territory. Use when the user says "create a skill", "scaffold a skill", "build a new planning skill", "add a skill to the orchestrator", "extend BMAD planning", "custom…

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts (for example `scripts/scaffold-skill.sh`, `scripts/validate-skill.sh` and `templates/document.template.md`).

It sits in Development, covering Project scaffolding, Linting and formatting and Skill authoring. The repository describes itself as: BMAD Method skills for Claude Code - Auto-detection, Memory integration, Slash commands. Transform Claude Code into a BMAD-powered development environment.

When your agent uses it

  • The user says create a skill
  • Scaffold a skill
  • Build a new planning skill
  • Add a skill to the orchestrator

Example prompts

  • “create a skill”
  • “scaffold a skill”
  • “build a new planning skill”
  • “/bmad-builder”

Requirements

  • A Bash shell
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Bash, Glob, Grep, TodoWrite

Workflow steps

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

  1. Gather requirements (use TodoWrite to track)
  2. Run the scaffold script to create the directory
  3. Fill the SKILL.md using the skill template
  4. Validate the new skill

What it can do on your machine

Read from SKILL.md and the folder at commit 27dca0e. 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:

    • Read
    • Write
    • Edit
    • Bash
    • Glob
    • Grep
    • TodoWrite

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 2 files in scripts/ (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • bash

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

  • Network

    Links to these hosts (documentation or services it may open):

    • github.com

    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

Bmad Builder loads about 1.9k tokens when it runs. Until then it costs about 224 tokens; SKILL.md has 736 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~224
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k

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: Read, Write, Edit, Bash, Glob, Grep, TodoWrite

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); the scripts in this folder 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 736 words (~1,883 tokens).

“Function: Scaffold and validate custom planning/orchestration skills for the BMAD Planning & Orchestrator plugin. Produces compliant SKILL.md files, shell scripts, and templates — pre-wired to this plugin's path conventions — and runs scope-violation checks to keep new skills inside the…”

— opening of SKILL.md by aj-geddes, Custom licence
name
bmad-builder
allowed-tools
Read, Write, Edit, Bash, Glob, Grep, TodoWrite

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (scripts) in bmad-planning-orchestrator/skills/bmad-builder of aj-geddes/claude-code-bmad-skills.

  • SKILL.md
  • scripts/scaffold-skill.sh
  • scripts/validate-skill.sh
  • templates/document.template.md
  • templates/skill.template.md

Open the folder on GitHubat commit 27dca0e

Compare with similar skills

Bmad Builder 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.

Bmad Builder compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Bmad Builder this skillaj-geddes/claude-code-bmad-skills488—~1.9kAutomated safety check: NotesCustom licence
Desloprohitg00/pro-workflow2.9k—~899Automated safety check: PassNone
CLI-Anything for CodexHKUDS/CLI-Anything52k—~1.5kAutomated safety check: PassApache-2.0
Create Skilldotnet/skills5.6k1 repos~2.7kAutomated safety check: PassMIT
Om Create Skillgo-musicfox/go-musicfox2.6k1 repos~1.8kAutomated safety check: PassGPL-3.0
Claude Code Plugin Structureanthropics/claude-plugins-official38k10 repos~3.4kAutomated safety check: PassApache-2.0

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  • Bmad Epics And Stories

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  • Bmad Help

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  • Bmad Init

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Questions about Bmad Builder

What does Bmad Builder do?

Meta-skill for scaffolding and validating custom PLANNING/ORCHESTRATION skills within the BMAD Planning & Orchestrator plugin. Bmad Builder is an agent skill from aj-geddes/claude-code-bmad-skills. Meta-skill for scaffolding and validating custom PLANNING/ORCHESTRATION skills within the BMAD Planning & Orchestrator plugin.

When should I use Bmad Builder?

Bmad Builder fits situations like: the user says create a skill; scaffold a skill; build a new planning skill; add a skill to the orchestrator.

How do I install Bmad Builder in Claude Code?

Run `npx skills add aj-geddes/claude-code-bmad-skills --skill bmad-builder -a claude-code`. Or copy the skill folder (bmad-planning-orchestrator/skills/bmad-builder in aj-geddes/claude-code-bmad-skills) into .claude/skills/bmad-builder in your project. Claude Code loads it when a task matches its description.

How do I install Bmad Builder in Codex?

Run `npx skills add aj-geddes/claude-code-bmad-skills --skill bmad-builder -a codex`. Or copy the skill folder (bmad-planning-orchestrator/skills/bmad-builder in aj-geddes/claude-code-bmad-skills) into .agents/skills/bmad-builder in your project. Codex loads it when a task matches its description.

Can I use Bmad Builder 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 aj-geddes/claude-code-bmad-skills --skill bmad-builder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bmad-builder, .gemini/skills/bmad-builder, .github/skills/bmad-builder and .opencode/skills/bmad-builder in your project.

What does Bmad Builder need to run?

Going by SKILL.md and its folder, Bmad Builder needs a shell for the scripts in its folder and the command-line tools its instructions call (bash). Our summary lists: A Bash shell. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash, Glob, Grep, TodoWrite.

Does Bmad Builder access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Bmad Builder 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Bmad Builder use?

Bmad Builder 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 Bmad Builder use?

About 1.9k tokens (SKILL.md is roughly 7.5k 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 Bmad Builder?

Skills that share tags, products or a category with Bmad Builder: Deslop (rohitg00/pro-workflow, 2.9k stars), CLI-Anything for Codex (HKUDS/CLI-Anything, 52k stars), Create Skill (dotnet/skills, 5.6k stars) and Om Create Skill (go-musicfox/go-musicfox, 2.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Bmad Builder?

aj-geddes (a GitHub user) maintains it in aj-geddes/claude-code-bmad-skills, which has 488 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on June 20, 2026.

Source: aj-geddes/claude-code-bmad-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.