pp-open-library

<!-- GENERATED FILE — DO NOT EDIT. This file is a verbatim mirror of library/media-and-entertainment/open-library/SKILL.md, regenerated post-merge by tools/generate-skills/. Hand-edits here are silently overwritten on the next regen. Edit the library/ source instead. See the repository agent guide, section "Generated artifacts: registry.json, cli-skills/". --> # Open Library - Printing Press CLI ## Prerequisites: Install the CLI This skill drives the `open-library-pp-cli` binary. **You must verify the CLI is installed before invoking any command from this skill.** If it is missing, install it first: 1. Install via the Printing Press installer. It defaults binaries to `$HOME/.local/bin` on macOS/Linux and `%LOCALAPPDATA%\Programs\PrintingPress\bin` on Windows: ```bash npx -y @mvanhorn/printing-press-library install open-library --cli-only ``` 2. Verify: `open-library-pp-cli --version` 3. Ensure the reported install directory is on `$PATH` for the agent/runtime that will invoke this skill. If the `npx` install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.4 or newer). This installs into `$GOPATH/bin` (default `$HOME/go/bin`), so add that directory to `$PATH` instead: ```bash go install github.com/mvanhorn/printing-press-library/library/media-and-entertainment/open-library/cmd/open-library-pp-cli@latest ``` If `--version` reports "command not found" after install, the runtime cannot see the binary directory on `$PATH`. Do not proceed with skill commands until verification succeeds. ## When To Use Use `open-library-pp-cli` when an agent needs source-backed Open Library metadata: - Search for book/work candidates by title or keyword phrase. - Resolve ISBNs to Open Library edition metadata. - Find an author record and fetch a bounded sample of their works. - Fetch canonical work metadata by Open Library work ID. - List bounded editions for a known work. - Browse subject works and optional subject facets. ## When Not To Use - Do not use it for borrowing, waitlists, patron data, account actions, or catalog edits. - Do not use it for bulk harvesting; use Open Library data dumps for bulk access. - Do not scrape Open Library HTML pages. - Do not treat subject facets as stable; Open Library documents the Subjects API as experimental. ## Setup No API key is required. The module declares `go 1.26.4` so environments with Go toolchain auto-download disabled should use Go 1.26.4 or newer for direct installs. For regular or frequent use, configure a request identity: ```bash export OPEN_LIBRARY_USER_AGENT="my-research-tool" export OPEN_LIBRARY_CONTACT_EMAIL="you@example.org" ``` Without `OPEN_LIBRARY_CONTACT_EMAIL`, keep requests near Open Library's documented non-identified rate posture of 1 request per second. ## Recipes ### Book Search ```bash open-library-pp-cli book "Designing Data-Intensive Applications" --limit 5 --agent ``` Use this to seed a bibliography with compact work candidates, author names, first publish year, edition count, ISBN hints, and source URLs. ### ISBN Lookup ```bash open-library-pp-cli isbn 9780131103627 --agent ``` Use this when the workflow has an ISBN and needs edition-level metadata. ### Author Works ```bash open-library-pp-cli author "Ursula K. Le Guin" --limit 5 --agent ``` Use this to identify an author and fetch a bounded sample of works. ### Work Metadata ```bash open-library-pp-cli work OL45804W --agent ``` Use this when a workflow already has an Open Library work ID. ### Editions ```bash open-library-pp-cli editions OL45804W --limit 10 --agent ``` Use this to compare editions for a known work without bulk-fetching every record. ### Subjects ```bash open-library-pp-cli subjects "distributed systems" --details --limit 10 --agent ``` Use this for adjacent-book discovery. Keep the experimental Subjects API caveat with downstream notes. ### Source Coverage ```bash open-library-pp-cli sources --agent open-library-pp-cli doctor --agent ``` Use these before a larger workflow to confirm rate-limit posture, optional request identity, source coverage, and non-goals.