ai-engineering-plugin

April 19, 2026 · View on GitHub

Claude Code plugin for prompt engineering — drafting, evaluating, cataloguing, and versioning prompts. Ships craft / eval / catalog / version primitives plus a provisioning skill for two workspace variants: a curated prompt-library and a combinatorial prompt-factory.

Part of the danielrosehill Claude Code marketplace.

What you get

Primitives (always available once the plugin is installed)

Core prompt-engineering commands (/ai-engineering:*):

  • craft-prompt — draft a new prompt with full metadata.
  • eval-prompt — score a prompt against quality heuristics and record the eval.
  • catalog-prompt — generate or refresh a browsable catalog of all prompts.
  • version-prompt — bump a prompt's version, archive the previous, append a changelog entry.
  • search-prompts — search across the library or factory by keyword, tag, category, or use case.

Factory-specific commands:

  • configure-variables — define or edit the variable dimensions used by a prompt-factory workspace.
  • generate-prompts — assemble prompts from variables and templates (single, batch, or full matrix).

Agent:

  • prompt-engineer — autonomous prompt-engineering subagent for multi-step crafting, evaluation, and library maintenance tasks.

Provisioning skill

  • /ai-engineering:new-workspace <name> [--variant=prompt-library|prompt-factory] [--local-only] [--private]

Scaffolds a new workspace (CLAUDE.md + variant-appropriate folders), personalises it from ~/.claude/CLAUDE.md, and (by default) creates a public GitHub repo for it.

Pattern

Primitives live in the plugin → globally available from any cwd. Workspace scaffolds are provisioned as data → no .claude/ tree inside provisioned workspaces. Plugin updates never touch your workspace data.

See PLAN.md in Claude-Workspace-Reshaping-190426 for the full pattern spec this plugin follows.

Variants

  • prompt-library (default) — curated, category-organised collection of individual prompts with rich frontmatter for search and reuse.
  • prompt-factory — combinatorial prompt generation. Variable dimensions, assembly templates, generated outputs, and evaluations.

Install

Via the danielrosehill marketplace:

/plugin marketplace add danielrosehill/Claude-Code-Plugins
/plugin install ai-engineering

License

MIT.