alt-text-writerlisted

# Alt-text writer Runs the bundled nanoodle workflow `workflows/alt-text.noodle-graph.json` against the NanoGPT API: an image input (`Image`) feeds a vision model whose question is assembled from two text nodes — the alt-text rules (`Alt rules`) and an optional house style guide (`Style guide`) — and the output (`Alt text`) is JSON with `alt_125char` and `numbered_caption`. Requires Node.js >= 20 and the `nanoodle` npm package (`npx nanoodle` fetches it). Typical agent use: mid-PR, glob the repo's images, call this once per file, and write the returned `alt_125char` into the markup instead of guessing at pixels you cannot see. ## API key The run needs a NanoGPT API key. Use whichever is available: - `NANOGPT_API_KEY` already set in the environment — prefer this; no extra flags. - A `.env` file containing `NANOGPT_API_KEY=...` — pass `--env-file <path>` only when the key is not already in the environment. (With this CLI, `--env-file` overrides ambient `NANOGPT_API_KEY`.) Never print the key. ## Run From this skill's directory (or prefix paths if running from elsewhere). Replace the image path with the real file (`@path` attaches a local file; an `https://` URL also works): ```sh npx nanoodle run workflows/alt-text.noodle-graph.json \ --input "Image=@/path/to/image.jpg" ``` The output is text, so no `--out` directory is needed. For a machine-readable payload (outputs, cost, balance), the run summary JSON is always printed on stdout. Optional overrides (both hav