Better Fullstack

Better Fullstack

Use the Better Fullstack generator as the source of truth for starter generation. Do not hand-write a full starter when a trusted Better Fullstack interface can produce it.

Choose The Path

Use an already-available CLI by default. The benchmarked best framing is: map the stack, dry-run the CLI, then run the same non-interactive command for real.

Use MCP only when the user explicitly asks for MCP, when CLI access is unavailable, or when the request needs structured schema lookup beyond what a concise CLI command can safely express. If using MCP, start with bfs_get_guidance, then use schema, compatibility, plan, and create/add tools in that order.

Use a trusted Better Fullstack interface in this order:

1. A local CLI path provided by the prompt or current repository.
2. A preinstalled Better Fullstack command available on PATH.
3. An attached Better Fullstack MCP server or tool.
4. A command explicitly provided or approved by the user.

If none is available, ask the user for the command, service, tool, or docs source they want used. Do not invent a bootstrap command.

Default CLI Workflow

1. Map the user's stack into Better Fullstack graph parts and flat flags.
2. Build one non-interactive command.
3. Run it with --dry-run.
4. If the dry run succeeds, run the same command without --dry-run.
5. If the CLI rejects a combination, adjust to the closest valid Better Fullstack stack and report the adjustment.

CLI Rules

• Create exactly the requested project directory, using a relative project name.
• Prefer create <project-name> --part ... for explicit or multi-ecosystem stacks.
• Pass --no-install --no-git for agent-driven scaffolding unless the user explicitly asks for side effects.
• Pass --package-manager bun when the user or project expects Bun.
• Pass --ai-docs agents-md for reusable projects, or --ai-docs none for benchmarks and throwaway scaffolds.
• Use none explicitly for categories the user wants disabled.
• Do not start a dev server.

Mapping Hints

• React + Vite: frontend:typescript:react-vite
• Hono: backend:typescript:hono
• Bun runtime: backend.runtime:typescript:bun
• SQLite: database:universal:sqlite
• Drizzle: backend.orm:typescript:drizzle
• tRPC: backend.api:typescript:trpc
• Tailwind: frontend.css:typescript:tailwind
• DaisyUI: frontend.ui:typescript:daisyui
• Pino: backend.logging:typescript:pino
• Biome: codeQuality:universal:biome

Graph Part Examples

Use graph parts as category:ecosystem:option.

<better-fullstack-cli> create my-app \
  --part frontend:typescript:react-vite \
  --part backend:typescript:hono \
  --part database:universal:sqlite \
  --part backend.runtime:typescript:bun \
  --part backend.api:typescript:trpc \
  --part backend.orm:typescript:drizzle \
  --part frontend.css:typescript:tailwind \
  --part frontend.ui:typescript:daisyui \
  --part backend.logging:typescript:pino \
  --part codeQuality:universal:biome \
  --forms none \
  --validation none \
  --ai-docs none \
  --package-manager bun \
  --no-install \
  --no-git

<better-fullstack-cli> create api-app \
  --part backend:python:fastapi \
  --part database:universal:postgres \
  --part backend.orm:python:sqlmodel \
  --part backend.validation:python:pydantic \
  --part backend.auth:python:jwt \
  --part codeQuality:python:ruff \
  --ai-docs agents-md \
  --no-install \
  --no-git

Existing Projects

For a generated project with bts.jsonc, use the Better Fullstack add command or MCP add tools. Use canonical Stack Part specs so each capability keeps its category and owner, for example:

<better-fullstack-cli> add --project-dir ./my-app --part staticAnalysis:typescript:knip --part workspaceRunner:universal:turborepo --no-install

For MCP lifecycle work, use this sequence:

1. bfs_get_project_status reads configuration and manifest prerequisites without running toolchains or writing files.
2. bfs_check_project runs every generated target check. It requires installed dependencies and required toolchains; missing prerequisites are failures. It does not rewrite Better Fullstack source/configuration directly, though build tools may fetch dependencies and write locks, caches, compiler output, or build artifacts.
3. bfs_plan_project_update reads current-template drift. It returns a reviewToken only when a supported manifest-v1 baseline exists and all exact structured-merge content fits the 32 KiB per-file MCP review bound. Oversized content is withheld with size/SHA metadata and no token.
4. After explicit approval, pass the same absolute project path and exact unchanged token to bfs_apply_project_update with acknowledgeUnprovenManifestV1: true. Missing, stale, cross-project, or bounded-review-ineligible tokens fail closed. Apply destructively overwrites currently actionable template files and advances the v1 manifest without installing dependencies.

Manifest v1 does not prove generator release/SHA provenance or cross-version eligibility, and the current apply path has no transactional backup or automated recovery. Do not promise those Wave 1 guarantees.

Final Response

Report the command or tool path used, any compatibility adjustments, the project directory, and the next install/test/run commands. Do not claim dependencies are installed when --no-install or MCP creation skipped them.