I build tools that make LLM agents do careful, measurable work, and the small utilities I need along the way.
MCP = ships an MCP server. Skill = ships a Claude Code skill or plugin.
| Project | What it is | Agent interface |
|---|---|---|
| drawspec | Declarative diagram spec to clean, themeable SVG. JSON with no coordinates, so an LLM can write it. | MCP, Skill |
| doc-control | Deterministic tool for AI agents to edit Word documents. Every change is a tracked change the writer can reject. | MCP |
| comparador-luz-gas | Queries the CNMC energy-offer comparator (Spain) and returns JSON ready for an LLM. | MCP |
| research-buddy | Structured AI research collaborator: versioned Markdown research documents built into a single-file HTML site. |
| Project | What it is | Agent interface |
|---|---|---|
| claude-arsenal | Claude Code plugin marketplace: specs before code, failing tests first, acceptance gates with numbers, a gated task queue. | Skill |
| integral-job-search | Candidate-centred job search run as a conversation in Claude Code. One dimension model from what you need to the interview. | Skill |
| integral-connectors | Job-board connectors for integral-job-search: four data files per board, no code. | |
| literary-critic | Lets an LLM index, analyse and advise on a whole novel manuscript like a professional editor, across drafts. | Skill |
| Project | What it is |
|---|---|
| ai-chat-exporter | Browser extension that exports ChatGPT, Claude and Gemini conversations to PDF, Markdown, DOCX and more. |
| image-to-svg | Raster-to-SVG converter that runs in the browser. Nothing is uploaded. |
| farma-kit | Fills in the header of Spanish pharmacy prescription coupon sheets, in the browser. |
| numerador-facturas | Numbers PDF invoices in batch, in the browser. Nothing is uploaded. |
| pdf-password-breaker | Recovers the password of your own PDF by trying candidates you define, in the browser. |
| html-cleaner | Bookmarklet that removes clutter from a page using per-site rules. |
| model-generator | One-shot generator: JSON spec to FastAPI backend with models, routes, migrations and tests. |
| completescraper | A complete and easy to use web scraping library for Python. |
Most of these are built with claude-arsenal's spec-driven workflow and gated task queue.